/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 10:36:48,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 10:36:48,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 10:36:48,537 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 10:36:48,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 10:36:48,540 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 10:36:48,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 10:36:48,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 10:36:48,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 10:36:48,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 10:36:48,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 10:36:48,557 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 10:36:48,558 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 10:36:48,560 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 10:36:48,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 10:36:48,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 10:36:48,563 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 10:36:48,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 10:36:48,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 10:36:48,573 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 10:36:48,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 10:36:48,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 10:36:48,579 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 10:36:48,580 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 10:36:48,585 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 10:36:48,585 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 10:36:48,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 10:36:48,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 10:36:48,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 10:36:48,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 10:36:48,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 10:36:48,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 10:36:48,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 10:36:48,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 10:36:48,598 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 10:36:48,598 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 10:36:48,599 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 10:36:48,599 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 10:36:48,599 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 10:36:48,600 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 10:36:48,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 10:36:48,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 10:36:48,638 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 10:36:48,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 10:36:48,640 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 10:36:48,640 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 10:36:48,642 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 10:36:48,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 10:36:48,642 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 10:36:48,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 10:36:48,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 10:36:48,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 10:36:48,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 10:36:48,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 10:36:48,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 10:36:48,644 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 10:36:48,645 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 10:36:48,645 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 10:36:48,645 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 10:36:48,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 10:36:48,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 10:36:48,646 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 10:36:48,646 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 10:36:48,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 10:36:48,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 10:36:48,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 10:36:48,647 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 10:36:48,647 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 10:36:48,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:48,648 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 10:36:48,648 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 10:36:48,648 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-21 10:36:48,915 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 10:36:48,928 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 10:36:48,932 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 10:36:48,933 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 10:36:48,934 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 10:36:48,934 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-07-21 10:36:49,011 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc38ca4e/362e44a02e29430894b17ed42690027c/FLAGc57adebf0 [2020-07-21 10:36:49,528 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 10:36:49,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-07-21 10:36:49,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc38ca4e/362e44a02e29430894b17ed42690027c/FLAGc57adebf0 [2020-07-21 10:36:49,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dc38ca4e/362e44a02e29430894b17ed42690027c [2020-07-21 10:36:49,818 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 10:36:49,821 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 10:36:49,822 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:49,822 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 10:36:49,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 10:36:49,826 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,829 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1553bfc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:49, skipping insertion in model container [2020-07-21 10:36:49,829 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:36:49" (1/1) ... [2020-07-21 10:36:49,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 10:36:49,874 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 10:36:50,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:50,180 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 10:36:50,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 10:36:50,412 INFO L208 MainTranslator]: Completed translation [2020-07-21 10:36:50,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50 WrapperNode [2020-07-21 10:36:50,413 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 10:36:50,414 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 10:36:50,414 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 10:36:50,414 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 10:36:50,427 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,505 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... [2020-07-21 10:36:50,520 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 10:36:50,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 10:36:50,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 10:36:50,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 10:36:50,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 10:36:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 10:36:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 10:36:50,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 10:36:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:36:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 10:36:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-21 10:36:50,603 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 10:36:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 10:36:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 10:36:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 10:36:50,604 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 10:36:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 10:36:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 10:36:50,605 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:50,606 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 10:36:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 10:36:50,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 10:36:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 10:36:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 10:36:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 10:36:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 10:36:50,608 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 10:36:50,609 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 10:36:50,609 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 10:36:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 10:36:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 10:36:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 10:36:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 10:36:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:36:50,610 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 10:36:50,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 10:36:50,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 10:36:50,611 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 10:36:50,611 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 10:36:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 10:36:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 10:36:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 10:36:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 10:36:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 10:36:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 10:36:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 10:36:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 10:36:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 10:36:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 10:36:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 10:36:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 10:36:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 10:36:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 10:36:50,616 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 10:36:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 10:36:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 10:36:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 10:36:50,618 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 10:36:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 10:36:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 10:36:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 10:36:50,619 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 10:36:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 10:36:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 10:36:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 10:36:50,620 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 10:36:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 10:36:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 10:36:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 10:36:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 10:36:50,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 10:36:50,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 10:36:51,706 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 10:36:51,707 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 10:36:51,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:51 BoogieIcfgContainer [2020-07-21 10:36:51,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 10:36:51,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 10:36:51,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 10:36:51,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 10:36:51,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:36:49" (1/3) ... [2020-07-21 10:36:51,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a8f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:51, skipping insertion in model container [2020-07-21 10:36:51,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:36:50" (2/3) ... [2020-07-21 10:36:51,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a8f3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:36:51, skipping insertion in model container [2020-07-21 10:36:51,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:36:51" (3/3) ... [2020-07-21 10:36:51,720 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-07-21 10:36:51,728 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 10:36:51,736 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 10:36:51,749 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 10:36:51,773 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 10:36:51,774 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 10:36:51,774 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 10:36:51,774 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 10:36:51,774 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 10:36:51,775 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 10:36:51,775 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 10:36:51,775 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 10:36:51,795 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states. [2020-07-21 10:36:51,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 10:36:51,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:51,805 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] [2020-07-21 10:36:51,806 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:51,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:51,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1150223249, now seen corresponding path program 1 times [2020-07-21 10:36:51,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:51,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1676753030] [2020-07-21 10:36:51,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:52,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 10:36:52,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:52,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:52,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1676753030] [2020-07-21 10:36:52,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:52,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 10:36:52,110 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649110381] [2020-07-21 10:36:52,115 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 10:36:52,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:52,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 10:36:52,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:36:52,132 INFO L87 Difference]: Start difference. First operand 162 states. Second operand 2 states. [2020-07-21 10:36:52,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:52,172 INFO L93 Difference]: Finished difference Result 222 states and 279 transitions. [2020-07-21 10:36:52,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 10:36:52,173 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 10:36:52,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:52,186 INFO L225 Difference]: With dead ends: 222 [2020-07-21 10:36:52,186 INFO L226 Difference]: Without dead ends: 111 [2020-07-21 10:36:52,191 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 10:36:52,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2020-07-21 10:36:52,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2020-07-21 10:36:52,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2020-07-21 10:36:52,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 131 transitions. [2020-07-21 10:36:52,246 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 131 transitions. Word has length 52 [2020-07-21 10:36:52,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:52,246 INFO L479 AbstractCegarLoop]: Abstraction has 111 states and 131 transitions. [2020-07-21 10:36:52,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 10:36:52,247 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 131 transitions. [2020-07-21 10:36:52,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 10:36:52,250 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:52,251 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] [2020-07-21 10:36:52,466 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:52,466 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:52,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:52,468 INFO L82 PathProgramCache]: Analyzing trace with hash 780273255, now seen corresponding path program 1 times [2020-07-21 10:36:52,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:52,469 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [11486348] [2020-07-21 10:36:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:52,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 10:36:52,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:52,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:52,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:52,706 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [11486348] [2020-07-21 10:36:52,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:52,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:52,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990221796] [2020-07-21 10:36:52,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:52,709 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:52,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:52,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:52,710 INFO L87 Difference]: Start difference. First operand 111 states and 131 transitions. Second operand 3 states. [2020-07-21 10:36:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:52,757 INFO L93 Difference]: Finished difference Result 165 states and 193 transitions. [2020-07-21 10:36:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:52,758 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 10:36:52,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:52,761 INFO L225 Difference]: With dead ends: 165 [2020-07-21 10:36:52,761 INFO L226 Difference]: Without dead ends: 102 [2020-07-21 10:36:52,762 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:52,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2020-07-21 10:36:52,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2020-07-21 10:36:52,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2020-07-21 10:36:52,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 119 transitions. [2020-07-21 10:36:52,776 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 119 transitions. Word has length 53 [2020-07-21 10:36:52,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:52,777 INFO L479 AbstractCegarLoop]: Abstraction has 102 states and 119 transitions. [2020-07-21 10:36:52,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:52,777 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 119 transitions. [2020-07-21 10:36:52,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 10:36:52,779 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:52,779 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] [2020-07-21 10:36:52,994 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:52,995 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:52,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:52,996 INFO L82 PathProgramCache]: Analyzing trace with hash 1294233432, now seen corresponding path program 1 times [2020-07-21 10:36:52,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:52,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [522976430] [2020-07-21 10:36:52,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:53,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:53,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 10:36:53,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:53,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:53,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:53,213 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [522976430] [2020-07-21 10:36:53,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:53,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 10:36:53,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561003681] [2020-07-21 10:36:53,216 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 10:36:53,216 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:53,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 10:36:53,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:53,217 INFO L87 Difference]: Start difference. First operand 102 states and 119 transitions. Second operand 3 states. [2020-07-21 10:36:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:53,268 INFO L93 Difference]: Finished difference Result 256 states and 309 transitions. [2020-07-21 10:36:53,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 10:36:53,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 10:36:53,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:53,275 INFO L225 Difference]: With dead ends: 256 [2020-07-21 10:36:53,275 INFO L226 Difference]: Without dead ends: 178 [2020-07-21 10:36:53,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 10:36:53,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-21 10:36:53,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 174. [2020-07-21 10:36:53,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 174 states. [2020-07-21 10:36:53,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 209 transitions. [2020-07-21 10:36:53,334 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 209 transitions. Word has length 57 [2020-07-21 10:36:53,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:53,334 INFO L479 AbstractCegarLoop]: Abstraction has 174 states and 209 transitions. [2020-07-21 10:36:53,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 10:36:53,335 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 209 transitions. [2020-07-21 10:36:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 10:36:53,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:53,340 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] [2020-07-21 10:36:53,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:53,541 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:53,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:53,542 INFO L82 PathProgramCache]: Analyzing trace with hash -914462432, now seen corresponding path program 1 times [2020-07-21 10:36:53,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:53,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [453925070] [2020-07-21 10:36:53,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:53,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 10:36:53,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 10:36:53,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 10:36:53,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 10:36:53,795 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 10:36:53,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [453925070] [2020-07-21 10:36:53,796 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 10:36:53,796 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 10:36:53,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128778742] [2020-07-21 10:36:53,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 10:36:53,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 10:36:53,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 10:36:53,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 10:36:53,798 INFO L87 Difference]: Start difference. First operand 174 states and 209 transitions. Second operand 6 states. [2020-07-21 10:36:54,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 10:36:54,059 INFO L93 Difference]: Finished difference Result 459 states and 577 transitions. [2020-07-21 10:36:54,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 10:36:54,060 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 10:36:54,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 10:36:54,065 INFO L225 Difference]: With dead ends: 459 [2020-07-21 10:36:54,065 INFO L226 Difference]: Without dead ends: 309 [2020-07-21 10:36:54,067 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 10:36:54,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-07-21 10:36:54,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 305. [2020-07-21 10:36:54,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-07-21 10:36:54,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 376 transitions. [2020-07-21 10:36:54,100 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 376 transitions. Word has length 63 [2020-07-21 10:36:54,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 10:36:54,100 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 376 transitions. [2020-07-21 10:36:54,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 10:36:54,101 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 376 transitions. [2020-07-21 10:36:54,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 10:36:54,105 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 10:36:54,105 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] [2020-07-21 10:36:54,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:54,320 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 10:36:54,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 10:36:54,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1013606138, now seen corresponding path program 1 times [2020-07-21 10:36:54,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 10:36:54,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [32342250] [2020-07-21 10:36:54,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:54,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:54,592 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:54,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 10:36:54,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 10:36:54,956 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 10:36:54,956 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 10:36:55,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 10:36:55,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 10:36:55 BoogieIcfgContainer [2020-07-21 10:36:55,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 10:36:55,329 INFO L168 Benchmark]: Toolchain (without parser) took 5507.09 ms. Allocated memory was 137.9 MB in the beginning and 251.1 MB in the end (delta: 113.2 MB). Free memory was 101.9 MB in the beginning and 111.0 MB in the end (delta: -9.1 MB). Peak memory consumption was 104.2 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:55,330 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 10:36:55,333 INFO L168 Benchmark]: CACSL2BoogieTranslator took 591.83 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.5 MB in the beginning and 173.4 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:55,334 INFO L168 Benchmark]: Boogie Preprocessor took 106.19 ms. Allocated memory is still 202.9 MB. Free memory was 173.4 MB in the beginning and 169.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:55,335 INFO L168 Benchmark]: RCFGBuilder took 1190.35 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 169.0 MB in the beginning and 200.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:55,336 INFO L168 Benchmark]: TraceAbstraction took 3611.44 ms. Allocated memory was 234.4 MB in the beginning and 251.1 MB in the end (delta: 16.8 MB). Free memory was 200.8 MB in the beginning and 111.0 MB in the end (delta: 89.8 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. [2020-07-21 10:36:55,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 591.83 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 101.5 MB in the beginning and 173.4 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.19 ms. Allocated memory is still 202.9 MB. Free memory was 173.4 MB in the beginning and 169.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1190.35 ms. Allocated memory was 202.9 MB in the beginning and 234.4 MB in the end (delta: 31.5 MB). Free memory was 169.0 MB in the beginning and 200.8 MB in the end (delta: -31.8 MB). Peak memory consumption was 87.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3611.44 ms. Allocated memory was 234.4 MB in the beginning and 251.1 MB in the end (delta: 16.8 MB). Free memory was 200.8 MB in the beginning and 111.0 MB in the end (delta: 89.8 MB). Peak memory consumption was 106.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 870]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L454] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int waterLevel = 1; [L653] int methaneLevelCritical = 0; [L732] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=33, \old(head)=39, \old(head)=90, \old(methaneLevelCritical)=78, \old(pumpRunning)=63, \old(systemActive)=94, \old(waterLevel)=49, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L808] int retValue_acc ; [L809] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L813] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L814] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L815] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L901] int retValue_acc ; [L904] retValue_acc = 1 [L905] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L815] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L815] tmp = valid_product() [L817] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L819] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L820] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L799] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L219] int splverifierCounter ; [L220] int tmp ; [L221] int tmp___0 ; [L222] int tmp___1 ; [L223] int tmp___2 ; [L226] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L228] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L230] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L236] tmp = __VERIFIER_nondet_int() [L238] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L240] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L670] COND TRUE waterLevel < 2 [L671] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L240] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L246] tmp___0 = __VERIFIER_nondet_int() [L248] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L256] tmp___2 = __VERIFIER_nondet_int() [L258] COND FALSE !(\read(tmp___2)) [L262] tmp___1 = __VERIFIER_nondet_int() [L264] COND TRUE \read(tmp___1) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L266] CALL stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L203] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L210] systemActive = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L266] RET stopSystem() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=0, tmp=-1, tmp___0=0, tmp___1=1, tmp___2=0, waterLevel=2] [L273] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L57] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L64] COND FALSE !(\read(systemActive)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L72] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L839] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L691] int retValue_acc ; [L694] retValue_acc = methaneLevelCritical [L695] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L839] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L839] tmp = isMethaneLevelCritical() [L841] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L845] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L723] int retValue_acc ; [L726] retValue_acc = waterLevel [L727] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L845] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, waterLevel=2] [L845] tmp___0 = getWaterLevel() [L847] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L849] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L155] int retValue_acc ; [L158] retValue_acc = pumpRunning [L159] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L849] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, waterLevel=2] [L849] tmp___1 = isPumpRunning() [L851] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L855] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L870] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 220 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 149 SDslu, 633 SDs, 0 SdLazy, 81 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 292 NumberOfCodeBlocks, 292 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2702 ConjunctsInSsa, 25 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...