/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_product06.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:52:00,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:52:00,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:52:00,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:52:00,883 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:52:00,885 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:52:00,887 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:52:00,898 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:52:00,899 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:52:00,901 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:52:00,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:52:00,903 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:52:00,903 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:52:00,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:52:00,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:52:00,909 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:52:00,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:52:00,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:52:00,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:52:00,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:52:00,925 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:52:00,929 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:52:00,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:52:00,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:52:00,935 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:52:00,935 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:52:00,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:52:00,938 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:52:00,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:52:00,941 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:52:00,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:52:00,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:52:00,943 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:52:00,947 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:52:00,949 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:52:00,949 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:52:00,950 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:52:00,951 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:52:00,951 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:52:00,952 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:52:00,953 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:52:00,954 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 12:52:00,976 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:52:00,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:52:00,979 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:52:00,979 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:52:00,979 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:52:00,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:52:00,979 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:52:00,980 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:52:00,980 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:52:00,980 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:52:00,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:52:00,982 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:52:00,982 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:52:00,982 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:52:00,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:52:00,983 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:52:00,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:52:00,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:52:00,984 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:52:00,984 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:52:00,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:52:00,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:52:00,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:52:00,985 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:52:00,985 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:52:00,985 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:52:00,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:00,985 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:52:00,985 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:52:00,986 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 12:52:01,300 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:52:01,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:52:01,316 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:52:01,318 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:52:01,318 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:52:01,319 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-07-21 12:52:01,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf9651a5/fc3241ef248b4e6fa097e0618535f3c9/FLAG0642a400a [2020-07-21 12:52:01,921 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:52:01,922 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product06.cil.c [2020-07-21 12:52:01,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf9651a5/fc3241ef248b4e6fa097e0618535f3c9/FLAG0642a400a [2020-07-21 12:52:02,222 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3bf9651a5/fc3241ef248b4e6fa097e0618535f3c9 [2020-07-21 12:52:02,231 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:52:02,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:52:02,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:02,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:52:02,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:52:02,239 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,242 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 12:52:02, skipping insertion in model container [2020-07-21 12:52:02,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:52:02,304 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:52:02,674 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:02,687 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:52:02,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:52:02,850 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:52:02,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02 WrapperNode [2020-07-21 12:52:02,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:52:02,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:52:02,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:52:02,852 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:52:02,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,869 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,900 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,900 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (1/1) ... [2020-07-21 12:52:02,964 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:52:02,965 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:52:02,965 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:52:02,965 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:52:02,966 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (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 12:52:03,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:52:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:52:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:52:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:52:03,037 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:52:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:52:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:52:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:52:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:52:03,038 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:52:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:52:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:52:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:52:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:52:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:52:03,039 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:52:03,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:52:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:52:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:52:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:52:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:52:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:52:03,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:52:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:52:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:52:03,042 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:52:03,043 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:52:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:52:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:52:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:52:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:52:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:52:03,044 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:52:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:52:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:52:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:52:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 12:52:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 12:52:03,045 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:52:03,046 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:52:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:52:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:52:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:52:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:52:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:52:03,047 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:52:03,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:52:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:52:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:52:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:52:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:52:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:52:04,110 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:52:04,110 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:52:04,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:04 BoogieIcfgContainer [2020-07-21 12:52:04,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:52:04,117 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:52:04,117 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:52:04,120 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:52:04,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:52:02" (1/3) ... [2020-07-21 12:52:04,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361d55ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:04, skipping insertion in model container [2020-07-21 12:52:04,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:52:02" (2/3) ... [2020-07-21 12:52:04,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361d55ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:52:04, skipping insertion in model container [2020-07-21 12:52:04,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:52:04" (3/3) ... [2020-07-21 12:52:04,124 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product06.cil.c [2020-07-21 12:52:04,134 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:52:04,142 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:52:04,156 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:52:04,181 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:52:04,181 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:52:04,181 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:52:04,182 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:52:04,182 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:52:04,182 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:52:04,182 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:52:04,183 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:52:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-07-21 12:52:04,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:52:04,217 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:04,218 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 12:52:04,219 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:04,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:04,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1057158692, now seen corresponding path program 1 times [2020-07-21 12:52:04,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:04,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560386007] [2020-07-21 12:52:04,235 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 12:52:04,593 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:04,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:04,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:52:04,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:04,639 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 12:52:04,639 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:04,640 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560386007] [2020-07-21 12:52:04,641 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:04,641 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:52:04,642 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124601568] [2020-07-21 12:52:04,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:52:04,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:04,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:52:04,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:52:04,665 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 2 states. [2020-07-21 12:52:04,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:04,709 INFO L93 Difference]: Finished difference Result 218 states and 271 transitions. [2020-07-21 12:52:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:52:04,712 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 12:52:04,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:04,731 INFO L225 Difference]: With dead ends: 218 [2020-07-21 12:52:04,731 INFO L226 Difference]: Without dead ends: 109 [2020-07-21 12:52:04,739 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 12:52:04,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-21 12:52:04,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2020-07-21 12:52:04,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 109 states. [2020-07-21 12:52:04,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 127 transitions. [2020-07-21 12:52:04,857 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 127 transitions. Word has length 52 [2020-07-21 12:52:04,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:04,858 INFO L479 AbstractCegarLoop]: Abstraction has 109 states and 127 transitions. [2020-07-21 12:52:04,858 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:52:04,859 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 127 transitions. [2020-07-21 12:52:04,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 12:52:04,866 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:04,866 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 12:52:05,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:05,068 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:05,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:05,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1710283751, now seen corresponding path program 1 times [2020-07-21 12:52:05,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:05,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281902912] [2020-07-21 12:52:05,070 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 12:52:05,444 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:05,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:05,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:52:05,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:05,490 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 12:52:05,491 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:05,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281902912] [2020-07-21 12:52:05,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:05,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:05,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2106197255] [2020-07-21 12:52:05,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:05,494 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:05,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:05,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:05,495 INFO L87 Difference]: Start difference. First operand 109 states and 127 transitions. Second operand 3 states. [2020-07-21 12:52:05,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:05,517 INFO L93 Difference]: Finished difference Result 163 states and 189 transitions. [2020-07-21 12:52:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:05,517 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 12:52:05,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:05,519 INFO L225 Difference]: With dead ends: 163 [2020-07-21 12:52:05,520 INFO L226 Difference]: Without dead ends: 100 [2020-07-21 12:52:05,521 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 12:52:05,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-21 12:52:05,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-21 12:52:05,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-21 12:52:05,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-21 12:52:05,534 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 53 [2020-07-21 12:52:05,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:05,534 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-21 12:52:05,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:05,535 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-21 12:52:05,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 12:52:05,537 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:05,537 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 12:52:05,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:05,753 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:05,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:05,754 INFO L82 PathProgramCache]: Analyzing trace with hash -830709307, now seen corresponding path program 1 times [2020-07-21 12:52:05,754 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:05,755 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066206491] [2020-07-21 12:52:05,755 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 12:52:06,138 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:06,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:06,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:52:06,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:06,170 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 12:52:06,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:06,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066206491] [2020-07-21 12:52:06,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:06,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:52:06,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962832918] [2020-07-21 12:52:06,172 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:52:06,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:06,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:52:06,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:52:06,173 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 3 states. [2020-07-21 12:52:06,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:06,195 INFO L93 Difference]: Finished difference Result 176 states and 207 transitions. [2020-07-21 12:52:06,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:52:06,195 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 12:52:06,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:06,197 INFO L225 Difference]: With dead ends: 176 [2020-07-21 12:52:06,197 INFO L226 Difference]: Without dead ends: 100 [2020-07-21 12:52:06,199 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 12:52:06,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-21 12:52:06,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2020-07-21 12:52:06,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-21 12:52:06,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 114 transitions. [2020-07-21 12:52:06,210 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 114 transitions. Word has length 58 [2020-07-21 12:52:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:06,211 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 114 transitions. [2020-07-21 12:52:06,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:52:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 114 transitions. [2020-07-21 12:52:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-07-21 12:52:06,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:06,214 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] [2020-07-21 12:52:06,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:06,428 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:06,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:06,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1834721556, now seen corresponding path program 1 times [2020-07-21 12:52:06,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:06,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631934315] [2020-07-21 12:52:06,430 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 12:52:06,715 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:06,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:52:06,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:52:06,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:52:06,792 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 12:52:06,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:52:06,792 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631934315] [2020-07-21 12:52:06,792 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:52:06,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:52:06,793 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055741026] [2020-07-21 12:52:06,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:52:06,794 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:52:06,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:52:06,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:52:06,795 INFO L87 Difference]: Start difference. First operand 100 states and 114 transitions. Second operand 6 states. [2020-07-21 12:52:07,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:52:07,012 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2020-07-21 12:52:07,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:52:07,012 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2020-07-21 12:52:07,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:52:07,016 INFO L225 Difference]: With dead ends: 243 [2020-07-21 12:52:07,016 INFO L226 Difference]: Without dead ends: 167 [2020-07-21 12:52:07,017 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 61 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 12:52:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-07-21 12:52:07,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 165. [2020-07-21 12:52:07,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165 states. [2020-07-21 12:52:07,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 194 transitions. [2020-07-21 12:52:07,040 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 194 transitions. Word has length 66 [2020-07-21 12:52:07,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:52:07,041 INFO L479 AbstractCegarLoop]: Abstraction has 165 states and 194 transitions. [2020-07-21 12:52:07,041 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:52:07,041 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 194 transitions. [2020-07-21 12:52:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-21 12:52:07,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:52:07,043 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, 1, 1, 1] [2020-07-21 12:52:07,256 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:07,257 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:52:07,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:52:07,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1882239654, now seen corresponding path program 1 times [2020-07-21 12:52:07,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:52:07,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [614597043] [2020-07-21 12:52:07,258 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 12:52:07,552 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:52:07,552 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:52:07,552 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:07,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:52:07,646 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:52:07,895 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:52:07,895 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:52:08,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:52:08,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:52:08 BoogieIcfgContainer [2020-07-21 12:52:08,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:52:08,271 INFO L168 Benchmark]: Toolchain (without parser) took 6037.99 ms. Allocated memory was 138.4 MB in the beginning and 287.3 MB in the end (delta: 148.9 MB). Free memory was 101.8 MB in the beginning and 226.5 MB in the end (delta: -124.7 MB). Peak memory consumption was 121.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,272 INFO L168 Benchmark]: CDTParser took 0.23 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,276 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.16 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.4 MB in the beginning and 172.8 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,277 INFO L168 Benchmark]: Boogie Preprocessor took 112.52 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 166.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,279 INFO L168 Benchmark]: RCFGBuilder took 1150.53 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 200.3 MB in the end (delta: -33.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,280 INFO L168 Benchmark]: TraceAbstraction took 4152.01 ms. Allocated memory was 236.5 MB in the beginning and 287.3 MB in the end (delta: 50.9 MB). Free memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: -26.3 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:52:08,285 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 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 617.16 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 101.4 MB in the beginning and 172.8 MB in the end (delta: -71.4 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 112.52 ms. Allocated memory is still 203.4 MB. Free memory was 172.8 MB in the beginning and 166.6 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1150.53 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 166.6 MB in the beginning and 200.3 MB in the end (delta: -33.7 MB). Peak memory consumption was 82.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4152.01 ms. Allocated memory was 236.5 MB in the beginning and 287.3 MB in the end (delta: 50.9 MB). Free memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: -26.3 MB). Peak memory consumption was 121.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L96] int pumpRunning = 0; [L97] int systemActive = 1; [L309] int waterLevel = 1; [L310] int methaneLevelCritical = 0; [L389] int cleanupTimeShifts = 4; [L654] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=36, \old(head)=76, \old(head)=46, \old(methaneLevelCritical)=61, \old(pumpRunning)=86, \old(systemActive)=85, \old(waterLevel)=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] int retValue_acc ; [L463] 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] [L467] 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] [L468] 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] [L469] 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] [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] 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] [L469] 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] [L469] tmp = valid_product() [L471] 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] [L473] 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] [L474] 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] [L456] 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] [L242] int splverifierCounter ; [L243] int tmp ; [L244] int tmp___0 ; [L245] int tmp___1 ; [L246] int tmp___2 ; [L249] 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] [L251] 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] [L253] 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] [L259] tmp = __VERIFIER_nondet_int() [L261] 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] [L263] 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] [L327] COND TRUE waterLevel < 2 [L328] 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] [L263] 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] [L269] tmp___0 = __VERIFIER_nondet_int() [L271] 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] [L279] tmp___2 = __VERIFIER_nondet_int() [L281] COND FALSE !(\read(tmp___2)) [L287] tmp___1 = __VERIFIER_nondet_int() [L289] 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] [L296] 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=1, waterLevel=2] [L104] 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=1, waterLevel=2] [L111] COND TRUE \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=1, waterLevel=2] [L113] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L133] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L136] 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=1, waterLevel=2] [L151] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L113] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L119] 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=1, waterLevel=2] [L852] int tmp ; [L853] int tmp___0 ; [L854] 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=1, waterLevel=2] [L858] 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=1, waterLevel=2] [L348] int retValue_acc ; [L351] retValue_acc = methaneLevelCritical [L352] 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=1, waterLevel=2] [L858] 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=1, waterLevel=2] [L858] tmp = isMethaneLevelCritical() [L860] 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=1, tmp=0, waterLevel=2] [L864] 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=1, waterLevel=2] [L380] int retValue_acc ; [L383] retValue_acc = waterLevel [L384] 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=1, waterLevel=2] [L864] 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=1, tmp=0, waterLevel=2] [L864] tmp___0 = getWaterLevel() [L866] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L868] 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=1, waterLevel=2] [L185] int retValue_acc ; [L188] retValue_acc = pumpRunning [L189] 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=1, waterLevel=2] [L868] 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=1, tmp=0, tmp___0=2, waterLevel=2] [L868] tmp___1 = isPumpRunning() [L870] 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=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L874] 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=1, waterLevel=2] [L44] __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=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 492 SDtfs, 138 SDslu, 515 SDs, 0 SdLazy, 76 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 227 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=165occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 299 NumberOfCodeBlocks, 299 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 24663 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2707 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...