/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:02:53,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:02:53,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:02:53,629 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:02:53,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:02:53,631 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:02:53,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:02:53,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:02:53,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:02:53,636 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:02:53,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:02:53,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:02:53,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:02:53,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:02:53,641 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:02:53,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:02:53,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:02:53,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:02:53,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:02:53,647 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:02:53,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:02:53,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:02:53,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:02:53,651 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:02:53,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:02:53,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:02:53,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:02:53,655 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:02:53,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:02:53,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:02:53,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:02:53,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:02:53,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:02:53,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:02:53,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:02:53,659 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:02:53,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:02:53,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:02:53,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:02:53,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:02:53,662 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:02:53,663 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 [2020-07-20 13:02:53,677 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:02:53,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:02:53,678 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:02:53,679 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:02:53,679 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:02:53,679 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:02:53,679 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:02:53,679 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:02:53,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:02:53,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:02:53,680 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:02:53,680 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:02:53,680 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:02:53,681 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:02:53,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:02:53,681 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:02:53,681 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:02:53,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:02:53,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:02:53,682 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:02:53,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:02:53,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:02:53,682 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:02:53,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:02:53,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:02:53,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:02:53,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:53,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:02:53,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:02:53,684 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 -> 4 [2020-07-20 13:02:54,033 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:02:54,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:02:54,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:02:54,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:02:54,052 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:02:54,053 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-20 13:02:54,116 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e40240d/ef8abd33d9c74726abc20d8f8b505781/FLAGa399d7e19 [2020-07-20 13:02:54,653 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:02:54,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-20 13:02:54,669 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e40240d/ef8abd33d9c74726abc20d8f8b505781/FLAGa399d7e19 [2020-07-20 13:02:54,958 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/03e40240d/ef8abd33d9c74726abc20d8f8b505781 [2020-07-20 13:02:54,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:02:54,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:02:54,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:54,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:02:54,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:02:54,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:54" (1/1) ... [2020-07-20 13:02:54,979 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c07bb8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:54, skipping insertion in model container [2020-07-20 13:02:54,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:02:54" (1/1) ... [2020-07-20 13:02:54,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:02:55,030 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:02:55,494 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:55,507 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:02:55,640 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:02:55,675 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:02:55,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55 WrapperNode [2020-07-20 13:02:55,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:02:55,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:02:55,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:02:55,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:02:55,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,740 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,751 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (1/1) ... [2020-07-20 13:02:55,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:02:55,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:02:55,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:02:55,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:02:55,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (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 [2020-07-20 13:02:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:02:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:02:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:02:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 13:02:55,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:02:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:02:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:02:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:02:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:02:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:02:55,830 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:02:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:02:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:02:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:02:55,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:02:55,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 13:02:55,833 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:02:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 13:02:55,834 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:02:55,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:02:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:02:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:55,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:02:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:02:55,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:02:55,838 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:02:55,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:02:55,839 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:02:55,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:02:55,841 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:02:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:02:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:02:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:02:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:02:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:02:55,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:02:55,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:02:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:02:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:02:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:02:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:02:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:02:55,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:02:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:02:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:02:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:02:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:02:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:02:55,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:02:56,934 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:02:56,934 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:02:56,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:56 BoogieIcfgContainer [2020-07-20 13:02:56,940 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:02:56,942 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:02:56,942 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:02:56,945 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:02:56,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:02:54" (1/3) ... [2020-07-20 13:02:56,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a75e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:56, skipping insertion in model container [2020-07-20 13:02:56,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:02:55" (2/3) ... [2020-07-20 13:02:56,947 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56a75e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:02:56, skipping insertion in model container [2020-07-20 13:02:56,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:02:56" (3/3) ... [2020-07-20 13:02:56,949 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-07-20 13:02:56,960 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:02:56,969 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:02:56,984 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:02:57,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:02:57,009 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:02:57,009 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:02:57,010 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:02:57,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:02:57,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:02:57,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:02:57,011 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:02:57,033 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-20 13:02:57,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 13:02:57,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:57,044 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] [2020-07-20 13:02:57,045 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:57,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:57,050 INFO L82 PathProgramCache]: Analyzing trace with hash 640895003, now seen corresponding path program 1 times [2020-07-20 13:02:57,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:57,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [992175773] [2020-07-20 13:02:57,060 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:02:57,553 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:57,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:57,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:02:57,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:57,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:57,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:57,603 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [992175773] [2020-07-20 13:02:57,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:57,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:02:57,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699691241] [2020-07-20 13:02:57,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:02:57,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:57,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:02:57,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:02:57,627 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2020-07-20 13:02:57,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:57,669 INFO L93 Difference]: Finished difference Result 280 states and 347 transitions. [2020-07-20 13:02:57,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:02:57,670 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-20 13:02:57,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:57,683 INFO L225 Difference]: With dead ends: 280 [2020-07-20 13:02:57,683 INFO L226 Difference]: Without dead ends: 140 [2020-07-20 13:02:57,688 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 [2020-07-20 13:02:57,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-20 13:02:57,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-20 13:02:57,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-20 13:02:57,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2020-07-20 13:02:57,747 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 52 [2020-07-20 13:02:57,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:57,748 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2020-07-20 13:02:57,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:02:57,748 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2020-07-20 13:02:57,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 13:02:57,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:57,758 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] [2020-07-20 13:02:57,959 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:57,960 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:57,961 INFO L82 PathProgramCache]: Analyzing trace with hash -61253498, now seen corresponding path program 1 times [2020-07-20 13:02:57,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:57,962 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560329767] [2020-07-20 13:02:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:02:58,439 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:58,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:58,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:02:58,450 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:58,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:58,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:58,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560329767] [2020-07-20 13:02:58,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:58,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:58,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847246681] [2020-07-20 13:02:58,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:58,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:58,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:58,491 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:58,491 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand 3 states. [2020-07-20 13:02:58,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:58,515 INFO L93 Difference]: Finished difference Result 223 states and 261 transitions. [2020-07-20 13:02:58,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:58,515 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-20 13:02:58,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:58,518 INFO L225 Difference]: With dead ends: 223 [2020-07-20 13:02:58,518 INFO L226 Difference]: Without dead ends: 131 [2020-07-20 13:02:58,520 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 [2020-07-20 13:02:58,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-20 13:02:58,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-07-20 13:02:58,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-07-20 13:02:58,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2020-07-20 13:02:58,543 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2020-07-20 13:02:58,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:58,544 INFO L479 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2020-07-20 13:02:58,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:58,544 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2020-07-20 13:02:58,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 13:02:58,552 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:58,553 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] [2020-07-20 13:02:58,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:58,766 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:58,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:58,766 INFO L82 PathProgramCache]: Analyzing trace with hash 2048791527, now seen corresponding path program 1 times [2020-07-20 13:02:58,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:58,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037781171] [2020-07-20 13:02:58,767 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:02:59,251 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:02:59,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:02:59,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:02:59,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:02:59,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:02:59,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:02:59,288 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037781171] [2020-07-20 13:02:59,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:02:59,289 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:02:59,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982553529] [2020-07-20 13:02:59,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:02:59,290 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:02:59,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:02:59,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:02:59,291 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 3 states. [2020-07-20 13:02:59,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:02:59,319 INFO L93 Difference]: Finished difference Result 343 states and 411 transitions. [2020-07-20 13:02:59,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:02:59,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-20 13:02:59,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:02:59,324 INFO L225 Difference]: With dead ends: 343 [2020-07-20 13:02:59,325 INFO L226 Difference]: Without dead ends: 236 [2020-07-20 13:02:59,326 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 [2020-07-20 13:02:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-07-20 13:02:59,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 232. [2020-07-20 13:02:59,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2020-07-20 13:02:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 277 transitions. [2020-07-20 13:02:59,356 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 277 transitions. Word has length 57 [2020-07-20 13:02:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:02:59,356 INFO L479 AbstractCegarLoop]: Abstraction has 232 states and 277 transitions. [2020-07-20 13:02:59,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:02:59,356 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 277 transitions. [2020-07-20 13:02:59,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2020-07-20 13:02:59,359 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:02:59,359 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] [2020-07-20 13:02:59,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:02:59,573 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:02:59,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:02:59,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1441609457, now seen corresponding path program 1 times [2020-07-20 13:02:59,575 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:02:59,575 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1913062212] [2020-07-20 13:02:59,576 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:03:00,055 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:00,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:00,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 13:03:00,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:00,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:00,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:00,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1913062212] [2020-07-20 13:03:00,150 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:00,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:00,151 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166805187] [2020-07-20 13:03:00,152 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:00,152 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:00,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:00,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:00,153 INFO L87 Difference]: Start difference. First operand 232 states and 277 transitions. Second operand 6 states. [2020-07-20 13:03:00,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:00,447 INFO L93 Difference]: Finished difference Result 633 states and 801 transitions. [2020-07-20 13:03:00,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:03:00,447 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 63 [2020-07-20 13:03:00,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:00,452 INFO L225 Difference]: With dead ends: 633 [2020-07-20 13:03:00,453 INFO L226 Difference]: Without dead ends: 425 [2020-07-20 13:03:00,456 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 [2020-07-20 13:03:00,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-20 13:03:00,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 421. [2020-07-20 13:03:00,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-07-20 13:03:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 520 transitions. [2020-07-20 13:03:00,511 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 520 transitions. Word has length 63 [2020-07-20 13:03:00,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:00,512 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 520 transitions. [2020-07-20 13:03:00,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:00,512 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 520 transitions. [2020-07-20 13:03:00,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 13:03:00,515 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:00,515 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] [2020-07-20 13:03:00,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:00,729 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:00,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:00,730 INFO L82 PathProgramCache]: Analyzing trace with hash -1951258889, now seen corresponding path program 1 times [2020-07-20 13:03:00,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:00,731 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815181616] [2020-07-20 13:03:00,732 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 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 [2020-07-20 13:03:01,132 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:01,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:03:01,133 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:03:01,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:03:01,225 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:03:01,526 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:03:01,526 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:03:01,731 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:01,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:03:01 BoogieIcfgContainer [2020-07-20 13:03:01,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:03:01,917 INFO L168 Benchmark]: Toolchain (without parser) took 6946.11 ms. Allocated memory was 138.4 MB in the beginning and 284.2 MB in the end (delta: 145.8 MB). Free memory was 101.9 MB in the beginning and 207.1 MB in the end (delta: -105.2 MB). Peak memory consumption was 40.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:01,917 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:03:01,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.34 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 101.5 MB in the beginning and 167.3 MB in the end (delta: -65.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:01,919 INFO L168 Benchmark]: Boogie Preprocessor took 88.27 ms. Allocated memory is still 199.2 MB. Free memory was 167.3 MB in the beginning and 163.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:01,920 INFO L168 Benchmark]: RCFGBuilder took 1175.86 ms. Allocated memory was 199.2 MB in the beginning and 233.3 MB in the end (delta: 34.1 MB). Free memory was 163.2 MB in the beginning and 192.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:01,921 INFO L168 Benchmark]: TraceAbstraction took 4971.46 ms. Allocated memory was 233.3 MB in the beginning and 284.2 MB in the end (delta: 50.9 MB). Free memory was 191.0 MB in the beginning and 207.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:01,925 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.34 ms. Allocated memory was 138.4 MB in the beginning and 199.2 MB in the end (delta: 60.8 MB). Free memory was 101.5 MB in the beginning and 167.3 MB in the end (delta: -65.8 MB). Peak memory consumption was 29.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.27 ms. Allocated memory is still 199.2 MB. Free memory was 167.3 MB in the beginning and 163.2 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1175.86 ms. Allocated memory was 199.2 MB in the beginning and 233.3 MB in the end (delta: 34.1 MB). Free memory was 163.2 MB in the beginning and 192.5 MB in the end (delta: -29.3 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4971.46 ms. Allocated memory was 233.3 MB in the beginning and 284.2 MB in the end (delta: 50.9 MB). Free memory was 191.0 MB in the beginning and 207.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=97, \old(head)=76, \old(head)=94, \old(methaneLevelCritical)=33, \old(pumpRunning)=34, \old(systemActive)=81, \old(waterLevel)=59, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L549] int retValue_acc ; [L550] 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] [L554] 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] [L555] 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] [L556] 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] [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] 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] [L556] 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] [L556] tmp = valid_product() [L558] 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] [L560] 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] [L561] 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] [L540] 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] [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] 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] [L164] 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] [L166] 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] [L172] tmp = __VERIFIER_nondet_int() [L174] 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] [L176] 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] [L66] COND TRUE waterLevel < 2 [L67] 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] [L176] 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] [L182] tmp___0 = __VERIFIER_nondet_int() [L184] 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] [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] 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] [L202] 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] [L426] 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] [L433] 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] [L202] 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] [L209] 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] [L233] 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] [L240] 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] [L248] 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] [L440] int tmp ; [L441] int tmp___0 ; [L442] 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] [L446] 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] [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] 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] [L446] 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] [L446] tmp = isMethaneLevelCritical() [L448] 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] [L452] 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] [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] 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] [L452] 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] [L452] tmp___0 = getWaterLevel() [L454] 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] [L456] 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] [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] 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] [L456] 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] [L456] tmp___1 = isPumpRunning() [L458] 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] [L462] 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] [L977] __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 41 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 700 SDtfs, 221 SDslu, 808 SDs, 0 SdLazy, 103 SolverSat, 6 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=421occurred 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, 1.7s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 292 NumberOfCodeBlocks, 256 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 23257 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2631 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...