/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 SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:52:32,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:52:32,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:52:32,288 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:52:32,289 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:52:32,290 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:52:32,292 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:52:32,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:52:32,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:52:32,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:52:32,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:52:32,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:52:32,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:52:32,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:52:32,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:52:32,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:52:32,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:52:32,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:52:32,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:52:32,330 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:52:32,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:52:32,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:52:32,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:52:32,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:52:32,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:52:32,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:52:32,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:52:32,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:52:32,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:52:32,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:52:32,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:52:32,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:52:32,350 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:52:32,351 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:52:32,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:52:32,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:52:32,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:52:32,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:52:32,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:52:32,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:52:32,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:52:32,357 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 12:52:32,393 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:52:32,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:52:32,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:52:32,397 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:52:32,398 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:52:32,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:52:32,398 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:52:32,398 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:52:32,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:52:32,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:52:32,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:52:32,399 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:52:32,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:52:32,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:52:32,403 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:52:32,403 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:52:32,403 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:52:32,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:52:32,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:52:32,404 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:52:32,404 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:52:32,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:52:32,404 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:52:32,404 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:52:32,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:52:32,405 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:52:32,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:32,405 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:52:32,405 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:52:32,406 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 -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:52:32,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:52:32,729 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:52:32,732 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:52:32,734 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:52:32,734 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:52:32,735 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-07-21 12:52:32,805 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1465338c2/3d5951fbd94a426c89d302da97be8016/FLAG4d130f71b [2020-07-21 12:52:33,284 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:52:33,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product56.cil.c [2020-07-21 12:52:33,300 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1465338c2/3d5951fbd94a426c89d302da97be8016/FLAG4d130f71b [2020-07-21 12:52:33,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1465338c2/3d5951fbd94a426c89d302da97be8016 [2020-07-21 12:52:33,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:52:33,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:52:33,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:33,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:52:33,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:52:33,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:33" (1/1) ... [2020-07-21 12:52:33,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b297545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:33, skipping insertion in model container [2020-07-21 12:52:33,658 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:33" (1/1) ... [2020-07-21 12:52:33,666 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:52:33,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:52:34,235 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:34,257 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:52:34,381 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:34,421 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:52:34,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34 WrapperNode [2020-07-21 12:52:34,422 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:34,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:52:34,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:52:34,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:52:34,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (1/1) ... [2020-07-21 12:52:34,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:52:34,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:52:34,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:52:34,512 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:52:34,513 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (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 12:52:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:52:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:52:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:34,581 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:52:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:52:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:52:34,582 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:52:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:52:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:34,583 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:52:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:52:34,584 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:52:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:52:34,585 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:52:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:52:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:52:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:34,586 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:52:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:52:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:52:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:52:34,587 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:52:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:52:34,589 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:52:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:52:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:52:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:52:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:52:34,590 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:52:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:52:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 12:52:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:52:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:52:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:52:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:52:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:52:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:52:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:52:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:34,595 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:52:34,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:52:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:52:34,597 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:52:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:52:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:52:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:52:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:52:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:34,598 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:52:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:52:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:52:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:52:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:52:34,599 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:52:34,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:52:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:52:34,601 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:52:35,830 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:52:35,830 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:52:35,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:35 BoogieIcfgContainer [2020-07-21 12:52:35,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:52:35,837 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:52:35,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:52:35,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:52:35,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:33" (1/3) ... [2020-07-21 12:52:35,842 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a7b1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:35, skipping insertion in model container [2020-07-21 12:52:35,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:34" (2/3) ... [2020-07-21 12:52:35,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@33a7b1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:35, skipping insertion in model container [2020-07-21 12:52:35,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:35" (3/3) ... [2020-07-21 12:52:35,844 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product56.cil.c [2020-07-21 12:52:35,855 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:52:35,864 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:52:35,879 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:52:35,904 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:52:35,904 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:52:35,905 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:52:35,905 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:52:35,905 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:52:35,905 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:52:35,906 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:52:35,906 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:52:35,930 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states. [2020-07-21 12:52:35,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:52:35,941 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:35,942 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 12:52:35,943 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:35,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:35,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1135361186, now seen corresponding path program 1 times [2020-07-21 12:52:35,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:35,959 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1644608924] [2020-07-21 12:52:35,959 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:52:36,430 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:36,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:36,437 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:52:36,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:36,486 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 12:52:36,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:36,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1644608924] [2020-07-21 12:52:36,489 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:36,489 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:52:36,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306485333] [2020-07-21 12:52:36,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:52:36,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:36,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:52:36,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:52:36,517 INFO L87 Difference]: Start difference. First operand 202 states. Second operand 2 states. [2020-07-21 12:52:36,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:36,567 INFO L93 Difference]: Finished difference Result 318 states and 395 transitions. [2020-07-21 12:52:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:52:36,568 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 12:52:36,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:36,583 INFO L225 Difference]: With dead ends: 318 [2020-07-21 12:52:36,584 INFO L226 Difference]: Without dead ends: 159 [2020-07-21 12:52:36,589 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 12:52:36,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2020-07-21 12:52:36,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2020-07-21 12:52:36,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2020-07-21 12:52:36,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 189 transitions. [2020-07-21 12:52:36,659 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 189 transitions. Word has length 52 [2020-07-21 12:52:36,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:36,660 INFO L479 AbstractCegarLoop]: Abstraction has 159 states and 189 transitions. [2020-07-21 12:52:36,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:52:36,660 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 189 transitions. [2020-07-21 12:52:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 12:52:36,664 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:36,665 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 12:52:36,879 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:36,879 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:36,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:36,880 INFO L82 PathProgramCache]: Analyzing trace with hash 117273538, now seen corresponding path program 1 times [2020-07-21 12:52:36,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:36,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [110549370] [2020-07-21 12:52:36,882 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:52:37,216 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:37,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:37,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:52:37,225 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:37,256 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 12:52:37,257 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:37,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [110549370] [2020-07-21 12:52:37,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:37,258 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:37,258 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293442608] [2020-07-21 12:52:37,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:37,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:37,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:37,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:37,261 INFO L87 Difference]: Start difference. First operand 159 states and 189 transitions. Second operand 3 states. [2020-07-21 12:52:37,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:37,286 INFO L93 Difference]: Finished difference Result 257 states and 305 transitions. [2020-07-21 12:52:37,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:37,287 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 12:52:37,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:37,289 INFO L225 Difference]: With dead ends: 257 [2020-07-21 12:52:37,290 INFO L226 Difference]: Without dead ends: 150 [2020-07-21 12:52:37,292 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 12:52:37,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-21 12:52:37,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-07-21 12:52:37,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-21 12:52:37,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 177 transitions. [2020-07-21 12:52:37,319 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 177 transitions. Word has length 53 [2020-07-21 12:52:37,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:37,320 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 177 transitions. [2020-07-21 12:52:37,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:37,320 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 177 transitions. [2020-07-21 12:52:37,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 12:52:37,329 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:37,329 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] [2020-07-21 12:52:37,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:37,543 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:37,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:37,544 INFO L82 PathProgramCache]: Analyzing trace with hash 1326355153, now seen corresponding path program 1 times [2020-07-21 12:52:37,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:37,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166176952] [2020-07-21 12:52:37,546 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:52:37,832 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:37,833 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:37,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 681 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:52:37,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:37,866 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 12:52:37,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:37,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166176952] [2020-07-21 12:52:37,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:37,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:37,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862300761] [2020-07-21 12:52:37,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:37,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:37,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:37,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:37,870 INFO L87 Difference]: Start difference. First operand 150 states and 177 transitions. Second operand 3 states. [2020-07-21 12:52:37,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:37,902 INFO L93 Difference]: Finished difference Result 398 states and 482 transitions. [2020-07-21 12:52:37,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:37,903 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 12:52:37,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:37,906 INFO L225 Difference]: With dead ends: 398 [2020-07-21 12:52:37,906 INFO L226 Difference]: Without dead ends: 272 [2020-07-21 12:52:37,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 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 12:52:37,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2020-07-21 12:52:37,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 266. [2020-07-21 12:52:37,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-07-21 12:52:37,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 321 transitions. [2020-07-21 12:52:37,941 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 321 transitions. Word has length 58 [2020-07-21 12:52:37,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:37,942 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 321 transitions. [2020-07-21 12:52:37,942 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:37,942 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 321 transitions. [2020-07-21 12:52:37,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-21 12:52:37,946 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:37,946 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 12:52:38,156 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:38,157 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:38,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:38,158 INFO L82 PathProgramCache]: Analyzing trace with hash -962527068, now seen corresponding path program 1 times [2020-07-21 12:52:38,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:38,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [27346400] [2020-07-21 12:52:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:52:38,456 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:38,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:38,461 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:52:38,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:38,521 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 12:52:38,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:38,522 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [27346400] [2020-07-21 12:52:38,522 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:38,522 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:52:38,522 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364083773] [2020-07-21 12:52:38,523 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:52:38,523 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:38,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:52:38,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:52:38,524 INFO L87 Difference]: Start difference. First operand 266 states and 321 transitions. Second operand 6 states. [2020-07-21 12:52:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:38,862 INFO L93 Difference]: Finished difference Result 735 states and 941 transitions. [2020-07-21 12:52:38,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:52:38,863 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-21 12:52:38,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:38,867 INFO L225 Difference]: With dead ends: 735 [2020-07-21 12:52:38,868 INFO L226 Difference]: Without dead ends: 493 [2020-07-21 12:52:38,869 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 12:52:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-07-21 12:52:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 489. [2020-07-21 12:52:38,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 489 states. [2020-07-21 12:52:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 612 transitions. [2020-07-21 12:52:38,910 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 612 transitions. Word has length 63 [2020-07-21 12:52:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:38,910 INFO L479 AbstractCegarLoop]: Abstraction has 489 states and 612 transitions. [2020-07-21 12:52:38,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:52:38,911 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 612 transitions. [2020-07-21 12:52:38,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-21 12:52:38,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:38,913 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 12:52:39,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:39,128 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:39,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:39,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1151554506, now seen corresponding path program 1 times [2020-07-21 12:52:39,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:39,130 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [366675221] [2020-07-21 12:52:39,130 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) 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 12:52:39,601 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:39,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:52:39,601 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:52:39,703 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:39,890 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:52:39,891 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:52:40,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:40,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:52:40 BoogieIcfgContainer [2020-07-21 12:52:40,233 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:52:40,236 INFO L168 Benchmark]: Toolchain (without parser) took 6588.16 ms. Allocated memory was 137.9 MB in the beginning and 285.7 MB in the end (delta: 147.8 MB). Free memory was 101.5 MB in the beginning and 182.1 MB in the end (delta: -80.6 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:40,237 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 12:52:40,238 INFO L168 Benchmark]: CACSL2BoogieTranslator took 772.67 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 101.3 MB in the beginning and 170.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:40,239 INFO L168 Benchmark]: Boogie Preprocessor took 88.71 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:40,240 INFO L168 Benchmark]: RCFGBuilder took 1324.44 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 192.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:40,241 INFO L168 Benchmark]: TraceAbstraction took 4396.75 ms. Allocated memory was 236.5 MB in the beginning and 285.7 MB in the end (delta: 49.3 MB). Free memory was 191.0 MB in the beginning and 182.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:40,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 772.67 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 101.3 MB in the beginning and 170.6 MB in the end (delta: -69.3 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.71 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 166.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1324.44 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 166.4 MB in the beginning and 192.5 MB in the end (delta: -26.1 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4396.75 ms. Allocated memory was 236.5 MB in the beginning and 285.7 MB in the end (delta: 49.3 MB). Free memory was 191.0 MB in the beginning and 182.1 MB in the end (delta: 9.0 MB). Peak memory consumption was 58.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1013]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L313] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L587] int waterLevel = 1; [L588] int methaneLevelCritical = 0; [L694] int pumpRunning = 0; [L695] int systemActive = 1; VAL [\old(cleanupTimeShifts)=90, \old(head)=78, \old(head)=40, \old(methaneLevelCritical)=28, \old(pumpRunning)=74, \old(systemActive)=87, \old(waterLevel)=42, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] 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] [L126] 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] [L127] 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] [L128] 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] [L536] int retValue_acc ; [L539] retValue_acc = 1 [L540] 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] [L128] 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] [L128] tmp = valid_product() [L130] 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] [L132] 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] [L133] 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] [L112] 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] [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] 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] [L950] 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] [L952] 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] [L958] tmp = __VERIFIER_nondet_int() [L960] 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] [L962] 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] [L605] COND TRUE waterLevel < 2 [L606] 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] [L962] 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] [L968] tmp___0 = __VERIFIER_nondet_int() [L970] 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] [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L986] tmp___1 = __VERIFIER_nondet_int() [L988] 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] [L990] 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] [L920] 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] [L927] 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] [L990] 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] [L997] 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] [L701] 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] [L708] 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] [L716] 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] [L550] int tmp ; [L551] int tmp___0 ; [L552] 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] [L556] 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] [L626] int retValue_acc ; [L629] retValue_acc = methaneLevelCritical [L630] 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] [L556] 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] [L556] tmp = isMethaneLevelCritical() [L558] 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] [L562] 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] [L658] int retValue_acc ; [L661] retValue_acc = waterLevel [L662] 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] [L562] 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] [L562] tmp___0 = getWaterLevel() [L564] 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] [L566] 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] [L834] int retValue_acc ; [L837] retValue_acc = pumpRunning [L838] 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] [L566] 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] [L566] tmp___1 = isPumpRunning() [L568] 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] [L572] 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] [L1013] __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 43 procedures, 258 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 808 SDtfs, 270 SDslu, 952 SDs, 0 SdLazy, 117 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 224 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred 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, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 293 NumberOfCodeBlocks, 293 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 222 ConstructedInterpolants, 0 QuantifiedInterpolants, 23550 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2709 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...