/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_spec4_product39.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:03:33,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:03:33,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:03:33,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:03:33,792 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:03:33,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:03:33,794 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:03:33,796 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:03:33,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:03:33,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:03:33,799 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:03:33,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:03:33,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:03:33,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:03:33,803 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:03:33,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:03:33,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:03:33,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:03:33,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:03:33,808 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:03:33,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:03:33,811 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:03:33,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:03:33,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:03:33,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:03:33,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:03:33,815 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:03:33,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:03:33,817 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:03:33,818 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:03:33,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:03:33,818 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:03:33,819 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:03:33,820 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:03:33,821 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:03:33,821 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:03:33,822 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:03:33,822 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:03:33,822 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:03:33,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:03:33,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:03:33,824 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 13:03:33,838 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:03:33,838 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:03:33,839 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:03:33,839 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:03:33,840 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:03:33,840 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:03:33,840 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:03:33,840 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:03:33,840 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:03:33,841 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:03:33,841 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:03:33,841 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:03:33,841 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:03:33,841 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:03:33,842 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:03:33,842 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:03:33,842 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:03:33,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:03:33,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:03:33,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:03:33,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:03:33,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:03:33,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:03:33,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:03:33,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:03:33,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:03:33,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:33,844 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:03:33,844 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:03:33,844 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 13:03:34,148 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:03:34,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:03:34,166 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:03:34,167 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:03:34,168 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:03:34,168 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-07-20 13:03:34,235 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69439b5eb/9cf8c9ed67a14198bbf246e035619798/FLAGa8dc9f37a [2020-07-20 13:03:34,723 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:03:34,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product39.cil.c [2020-07-20 13:03:34,739 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69439b5eb/9cf8c9ed67a14198bbf246e035619798/FLAGa8dc9f37a [2020-07-20 13:03:35,049 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69439b5eb/9cf8c9ed67a14198bbf246e035619798 [2020-07-20 13:03:35,057 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:03:35,060 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:03:35,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:03:35,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:03:35,066 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:03:35,067 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@567d91d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35, skipping insertion in model container [2020-07-20 13:03:35,071 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:03:35,152 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:03:35,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:03:35,628 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:03:35,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:03:35,801 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:03:35,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35 WrapperNode [2020-07-20 13:03:35,801 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:03:35,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:03:35,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:03:35,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:03:35,814 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,833 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,833 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,864 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,881 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (1/1) ... [2020-07-20 13:03:35,889 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:03:35,890 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:03:35,890 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:03:35,890 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:03:35,891 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (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 13:03:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:03:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:03:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:03:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:03:35,976 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:03:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:03:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:03:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:03:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:03:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:03:35,977 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:03:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:03:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:03:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:03:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:03:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:03:35,978 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:03:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:03:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:03:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:03:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:03:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:03:35,979 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:03:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:03:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:03:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:03:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:03:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:03:35,980 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:03:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:03:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:03:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:03:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:03:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:03:35,981 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:03:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:03:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:03:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:03:35,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 13:03:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:03:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:03:35,982 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:03:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:03:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:03:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:03:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:03:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:03:35,983 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:03:35,984 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:03:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:03:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:03:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:03:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:03:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:03:35,985 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:03:35,986 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:03:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:03:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:03:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:03:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:03:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:03:35,987 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:03:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:03:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:03:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:03:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 13:03:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:03:35,988 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:03:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:03:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 13:03:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:03:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:03:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:03:35,989 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:03:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:03:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:03:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:03:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:03:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:03:35,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:03:37,056 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:03:37,057 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:03:37,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:03:37 BoogieIcfgContainer [2020-07-20 13:03:37,062 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:03:37,064 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:03:37,064 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:03:37,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:03:37,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:03:35" (1/3) ... [2020-07-20 13:03:37,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695d7956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:03:37, skipping insertion in model container [2020-07-20 13:03:37,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:35" (2/3) ... [2020-07-20 13:03:37,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@695d7956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:03:37, skipping insertion in model container [2020-07-20 13:03:37,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:03:37" (3/3) ... [2020-07-20 13:03:37,071 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product39.cil.c [2020-07-20 13:03:37,082 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:03:37,090 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:03:37,104 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:03:37,129 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:03:37,130 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:03:37,130 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:03:37,130 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:03:37,130 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:03:37,130 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:03:37,131 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:03:37,131 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:03:37,154 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states. [2020-07-20 13:03:37,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 13:03:37,162 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:37,164 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] [2020-07-20 13:03:37,164 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:37,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:37,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1123456625, now seen corresponding path program 1 times [2020-07-20 13:03:37,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:37,180 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [601012714] [2020-07-20 13:03:37,180 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 13:03:37,683 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:37,683 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:37,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:03:37,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:37,728 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 13:03:37,729 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:37,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [601012714] [2020-07-20 13:03:37,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:37,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:03:37,732 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942325600] [2020-07-20 13:03:37,738 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:03:37,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:37,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:03:37,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:03:37,761 INFO L87 Difference]: Start difference. First operand 175 states. Second operand 2 states. [2020-07-20 13:03:37,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:37,822 INFO L93 Difference]: Finished difference Result 264 states and 327 transitions. [2020-07-20 13:03:37,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:03:37,825 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 13:03:37,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:37,844 INFO L225 Difference]: With dead ends: 264 [2020-07-20 13:03:37,845 INFO L226 Difference]: Without dead ends: 132 [2020-07-20 13:03:37,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 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 13:03:37,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2020-07-20 13:03:37,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 132. [2020-07-20 13:03:37,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132 states. [2020-07-20 13:03:37,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 155 transitions. [2020-07-20 13:03:37,959 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 155 transitions. Word has length 46 [2020-07-20 13:03:37,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:37,959 INFO L479 AbstractCegarLoop]: Abstraction has 132 states and 155 transitions. [2020-07-20 13:03:37,960 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:03:37,960 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 155 transitions. [2020-07-20 13:03:37,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 13:03:37,970 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:37,970 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] [2020-07-20 13:03:38,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:38,185 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:38,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:38,186 INFO L82 PathProgramCache]: Analyzing trace with hash -790150173, now seen corresponding path program 1 times [2020-07-20 13:03:38,187 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:38,188 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14923361] [2020-07-20 13:03:38,189 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 13:03:38,617 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:38,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:38,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:03:38,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:38,664 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 13:03:38,664 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:38,665 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14923361] [2020-07-20 13:03:38,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:38,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:38,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173090854] [2020-07-20 13:03:38,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:38,667 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:38,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:38,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:38,668 INFO L87 Difference]: Start difference. First operand 132 states and 155 transitions. Second operand 3 states. [2020-07-20 13:03:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:38,689 INFO L93 Difference]: Finished difference Result 207 states and 241 transitions. [2020-07-20 13:03:38,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:38,690 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 13:03:38,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:38,693 INFO L225 Difference]: With dead ends: 207 [2020-07-20 13:03:38,693 INFO L226 Difference]: Without dead ends: 123 [2020-07-20 13:03:38,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 13:03:38,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2020-07-20 13:03:38,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 123. [2020-07-20 13:03:38,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2020-07-20 13:03:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 143 transitions. [2020-07-20 13:03:38,707 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 143 transitions. Word has length 47 [2020-07-20 13:03:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:38,708 INFO L479 AbstractCegarLoop]: Abstraction has 123 states and 143 transitions. [2020-07-20 13:03:38,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 143 transitions. [2020-07-20 13:03:38,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:03:38,710 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:38,710 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] [2020-07-20 13:03:38,924 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:38,925 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:38,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:38,926 INFO L82 PathProgramCache]: Analyzing trace with hash 271076632, now seen corresponding path program 1 times [2020-07-20 13:03:38,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:38,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600922602] [2020-07-20 13:03:38,927 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 13:03:39,328 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:39,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:39,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:03:39,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:39,373 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 13:03:39,374 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:39,374 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600922602] [2020-07-20 13:03:39,374 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:39,374 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:39,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586417109] [2020-07-20 13:03:39,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:39,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:39,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:39,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:39,377 INFO L87 Difference]: Start difference. First operand 123 states and 143 transitions. Second operand 3 states. [2020-07-20 13:03:39,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:39,417 INFO L93 Difference]: Finished difference Result 319 states and 381 transitions. [2020-07-20 13:03:39,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:39,418 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 13:03:39,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:39,422 INFO L225 Difference]: With dead ends: 319 [2020-07-20 13:03:39,422 INFO L226 Difference]: Without dead ends: 220 [2020-07-20 13:03:39,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 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 13:03:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-07-20 13:03:39,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 216. [2020-07-20 13:03:39,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2020-07-20 13:03:39,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 257 transitions. [2020-07-20 13:03:39,453 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 257 transitions. Word has length 51 [2020-07-20 13:03:39,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:39,454 INFO L479 AbstractCegarLoop]: Abstraction has 216 states and 257 transitions. [2020-07-20 13:03:39,454 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:39,454 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 257 transitions. [2020-07-20 13:03:39,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 13:03:39,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:39,456 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 13:03:39,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:39,672 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:39,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:39,672 INFO L82 PathProgramCache]: Analyzing trace with hash -1813365187, now seen corresponding path program 1 times [2020-07-20 13:03:39,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:39,673 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526832348] [2020-07-20 13:03:39,675 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 13:03:40,025 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:40,026 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:40,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 13:03:40,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:40,083 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 13:03:40,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:40,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526832348] [2020-07-20 13:03:40,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:40,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:40,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330931903] [2020-07-20 13:03:40,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:40,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:40,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:40,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:40,086 INFO L87 Difference]: Start difference. First operand 216 states and 257 transitions. Second operand 6 states. [2020-07-20 13:03:40,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:40,353 INFO L93 Difference]: Finished difference Result 581 states and 729 transitions. [2020-07-20 13:03:40,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:03:40,354 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 13:03:40,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:40,358 INFO L225 Difference]: With dead ends: 581 [2020-07-20 13:03:40,359 INFO L226 Difference]: Without dead ends: 389 [2020-07-20 13:03:40,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 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 13:03:40,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-07-20 13:03:40,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 389. [2020-07-20 13:03:40,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2020-07-20 13:03:40,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 484 transitions. [2020-07-20 13:03:40,412 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 484 transitions. Word has length 57 [2020-07-20 13:03:40,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:40,413 INFO L479 AbstractCegarLoop]: Abstraction has 389 states and 484 transitions. [2020-07-20 13:03:40,413 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:40,413 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 484 transitions. [2020-07-20 13:03:40,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 13:03:40,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:40,418 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] [2020-07-20 13:03:40,618 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:40,619 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:40,620 INFO L82 PathProgramCache]: Analyzing trace with hash 2128676035, now seen corresponding path program 1 times [2020-07-20 13:03:40,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:40,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1103846235] [2020-07-20 13:03:40,621 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 13:03:40,931 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:40,932 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:40,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:03:40,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:40,957 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 13:03:40,957 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:40,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1103846235] [2020-07-20 13:03:40,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:40,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:40,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619844684] [2020-07-20 13:03:40,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:40,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:40,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:40,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:40,960 INFO L87 Difference]: Start difference. First operand 389 states and 484 transitions. Second operand 3 states. [2020-07-20 13:03:41,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:41,074 INFO L93 Difference]: Finished difference Result 905 states and 1195 transitions. [2020-07-20 13:03:41,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:41,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 13:03:41,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:41,079 INFO L225 Difference]: With dead ends: 905 [2020-07-20 13:03:41,080 INFO L226 Difference]: Without dead ends: 540 [2020-07-20 13:03:41,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 13:03:41,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2020-07-20 13:03:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 527. [2020-07-20 13:03:41,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-07-20 13:03:41,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 671 transitions. [2020-07-20 13:03:41,126 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 671 transitions. Word has length 61 [2020-07-20 13:03:41,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:41,127 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 671 transitions. [2020-07-20 13:03:41,127 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 671 transitions. [2020-07-20 13:03:41,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-20 13:03:41,130 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:41,130 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:41,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:41,346 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:41,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:41,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1521472315, now seen corresponding path program 1 times [2020-07-20 13:03:41,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:41,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [581747246] [2020-07-20 13:03:41,348 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 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:41,715 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:41,716 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:41,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:03:41,725 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:41,765 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 13:03:41,765 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:41,765 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [581747246] [2020-07-20 13:03:41,766 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:41,766 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:41,766 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450310881] [2020-07-20 13:03:41,767 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:41,767 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:41,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:41,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:41,768 INFO L87 Difference]: Start difference. First operand 527 states and 671 transitions. Second operand 6 states. [2020-07-20 13:03:41,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:41,815 INFO L93 Difference]: Finished difference Result 1050 states and 1378 transitions. [2020-07-20 13:03:41,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:03:41,815 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-07-20 13:03:41,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:41,820 INFO L225 Difference]: With dead ends: 1050 [2020-07-20 13:03:41,820 INFO L226 Difference]: Without dead ends: 547 [2020-07-20 13:03:41,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:03:41,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2020-07-20 13:03:41,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2020-07-20 13:03:41,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2020-07-20 13:03:41,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 693 transitions. [2020-07-20 13:03:41,854 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 693 transitions. Word has length 112 [2020-07-20 13:03:41,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:41,854 INFO L479 AbstractCegarLoop]: Abstraction has 547 states and 693 transitions. [2020-07-20 13:03:41,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:41,855 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 693 transitions. [2020-07-20 13:03:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-20 13:03:41,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:41,857 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:42,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:42,058 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:42,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:42,059 INFO L82 PathProgramCache]: Analyzing trace with hash -260555065, now seen corresponding path program 1 times [2020-07-20 13:03:42,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:42,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1268909415] [2020-07-20 13:03:42,061 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 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:42,378 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:42,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:42,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:03:42,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:42,451 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 13:03:42,452 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:42,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1268909415] [2020-07-20 13:03:42,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:42,452 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:03:42,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66190663] [2020-07-20 13:03:42,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:03:42,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:42,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:03:42,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:03:42,454 INFO L87 Difference]: Start difference. First operand 547 states and 693 transitions. Second operand 5 states. [2020-07-20 13:03:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:42,487 INFO L93 Difference]: Finished difference Result 1066 states and 1400 transitions. [2020-07-20 13:03:42,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:03:42,488 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 112 [2020-07-20 13:03:42,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:42,492 INFO L225 Difference]: With dead ends: 1066 [2020-07-20 13:03:42,493 INFO L226 Difference]: Without dead ends: 543 [2020-07-20 13:03:42,495 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:03:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2020-07-20 13:03:42,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2020-07-20 13:03:42,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-07-20 13:03:42,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 679 transitions. [2020-07-20 13:03:42,523 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 679 transitions. Word has length 112 [2020-07-20 13:03:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:42,523 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 679 transitions. [2020-07-20 13:03:42,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:03:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 679 transitions. [2020-07-20 13:03:42,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-20 13:03:42,526 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:42,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:42,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:42,741 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:42,742 INFO L82 PathProgramCache]: Analyzing trace with hash -1427251384, now seen corresponding path program 1 times [2020-07-20 13:03:42,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:42,743 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019503509] [2020-07-20 13:03:42,743 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 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:43,106 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:43,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:43,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:03:43,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:43,177 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:43,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:43,178 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019503509] [2020-07-20 13:03:43,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:43,178 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:43,178 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135385635] [2020-07-20 13:03:43,179 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:43,179 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:43,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:43,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:43,180 INFO L87 Difference]: Start difference. First operand 543 states and 679 transitions. Second operand 6 states. [2020-07-20 13:03:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:44,192 INFO L93 Difference]: Finished difference Result 1513 states and 2016 transitions. [2020-07-20 13:03:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:03:44,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 112 [2020-07-20 13:03:44,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:44,200 INFO L225 Difference]: With dead ends: 1513 [2020-07-20 13:03:44,201 INFO L226 Difference]: Without dead ends: 994 [2020-07-20 13:03:44,203 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:03:44,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 994 states. [2020-07-20 13:03:44,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 994 to 966. [2020-07-20 13:03:44,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 966 states. [2020-07-20 13:03:44,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 966 states to 966 states and 1223 transitions. [2020-07-20 13:03:44,286 INFO L78 Accepts]: Start accepts. Automaton has 966 states and 1223 transitions. Word has length 112 [2020-07-20 13:03:44,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:44,288 INFO L479 AbstractCegarLoop]: Abstraction has 966 states and 1223 transitions. [2020-07-20 13:03:44,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 966 states and 1223 transitions. [2020-07-20 13:03:44,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 13:03:44,293 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:44,293 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:44,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:44,509 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:44,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:44,510 INFO L82 PathProgramCache]: Analyzing trace with hash 1766891458, now seen corresponding path program 1 times [2020-07-20 13:03:44,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:44,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1147445254] [2020-07-20 13:03:44,511 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 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:44,787 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:44,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:44,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:03:44,795 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:44,813 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 13:03:44,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:44,813 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1147445254] [2020-07-20 13:03:44,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:44,814 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:44,814 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222619075] [2020-07-20 13:03:44,815 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:44,815 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:44,815 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:44,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:44,815 INFO L87 Difference]: Start difference. First operand 966 states and 1223 transitions. Second operand 3 states. [2020-07-20 13:03:44,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:44,890 INFO L93 Difference]: Finished difference Result 1186 states and 1498 transitions. [2020-07-20 13:03:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:44,890 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 116 [2020-07-20 13:03:44,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:44,894 INFO L225 Difference]: With dead ends: 1186 [2020-07-20 13:03:44,894 INFO L226 Difference]: Without dead ends: 565 [2020-07-20 13:03:44,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 114 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 13:03:44,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2020-07-20 13:03:44,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 554. [2020-07-20 13:03:44,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-07-20 13:03:44,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 685 transitions. [2020-07-20 13:03:44,927 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 685 transitions. Word has length 116 [2020-07-20 13:03:44,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:44,928 INFO L479 AbstractCegarLoop]: Abstraction has 554 states and 685 transitions. [2020-07-20 13:03:44,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:44,928 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 685 transitions. [2020-07-20 13:03:44,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-20 13:03:44,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:44,930 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:45,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:45,146 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:45,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:45,147 INFO L82 PathProgramCache]: Analyzing trace with hash 1767310158, now seen corresponding path program 1 times [2020-07-20 13:03:45,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:45,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408605085] [2020-07-20 13:03:45,148 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:45,595 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:45,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:45,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:03:45,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:45,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 13:03:45,984 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 13:03:45,985 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408605085] [2020-07-20 13:03:45,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 13:03:45,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 13:03:45,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961784220] [2020-07-20 13:03:45,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 13:03:45,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:45,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 13:03:45,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 13:03:45,987 INFO L87 Difference]: Start difference. First operand 554 states and 685 transitions. Second operand 12 states. [2020-07-20 13:03:47,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:47,491 INFO L93 Difference]: Finished difference Result 1557 states and 2093 transitions. [2020-07-20 13:03:47,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 13:03:47,492 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 130 [2020-07-20 13:03:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:47,499 INFO L225 Difference]: With dead ends: 1557 [2020-07-20 13:03:47,499 INFO L226 Difference]: Without dead ends: 873 [2020-07-20 13:03:47,504 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 248 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 13:03:47,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2020-07-20 13:03:47,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 716. [2020-07-20 13:03:47,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-07-20 13:03:47,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 886 transitions. [2020-07-20 13:03:47,561 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 886 transitions. Word has length 130 [2020-07-20 13:03:47,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:47,563 INFO L479 AbstractCegarLoop]: Abstraction has 716 states and 886 transitions. [2020-07-20 13:03:47,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 13:03:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 886 transitions. [2020-07-20 13:03:47,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-20 13:03:47,566 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:47,566 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:47,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:47,782 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:47,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:47,782 INFO L82 PathProgramCache]: Analyzing trace with hash 842250339, now seen corresponding path program 1 times [2020-07-20 13:03:47,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:47,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302088930] [2020-07-20 13:03:47,783 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:48,117 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:48,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:48,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 954 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:03:48,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:48,166 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-20 13:03:48,166 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:48,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302088930] [2020-07-20 13:03:48,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:48,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:48,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296125366] [2020-07-20 13:03:48,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:48,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:48,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:48,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:48,168 INFO L87 Difference]: Start difference. First operand 716 states and 886 transitions. Second operand 6 states. [2020-07-20 13:03:48,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:48,399 INFO L93 Difference]: Finished difference Result 731 states and 902 transitions. [2020-07-20 13:03:48,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:03:48,399 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-07-20 13:03:48,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:48,404 INFO L225 Difference]: With dead ends: 731 [2020-07-20 13:03:48,404 INFO L226 Difference]: Without dead ends: 636 [2020-07-20 13:03:48,405 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 177 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 13:03:48,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2020-07-20 13:03:48,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 628. [2020-07-20 13:03:48,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 13:03:48,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 772 transitions. [2020-07-20 13:03:48,437 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 772 transitions. Word has length 181 [2020-07-20 13:03:48,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:48,438 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 772 transitions. [2020-07-20 13:03:48,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:48,438 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 772 transitions. [2020-07-20 13:03:48,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-20 13:03:48,441 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:48,442 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:03:48,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:48,657 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:48,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:48,658 INFO L82 PathProgramCache]: Analyzing trace with hash -116138867, now seen corresponding path program 1 times [2020-07-20 13:03:48,658 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:48,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2026379803] [2020-07-20 13:03:48,659 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:49,071 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:49,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:03:49,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:03:49,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:03:49,192 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:03:49,556 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:03:49,557 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:03:49,772 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:50,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:03:50 BoogieIcfgContainer [2020-07-20 13:03:50,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:03:50,029 INFO L168 Benchmark]: Toolchain (without parser) took 14965.99 ms. Allocated memory was 137.4 MB in the beginning and 363.3 MB in the end (delta: 226.0 MB). Free memory was 100.7 MB in the beginning and 139.1 MB in the end (delta: -38.5 MB). Peak memory consumption was 187.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:50,030 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:03:50,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 741.06 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 167.9 MB in the end (delta: -67.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:50,034 INFO L168 Benchmark]: Boogie Preprocessor took 87.18 ms. Allocated memory is still 200.8 MB. Free memory was 167.9 MB in the beginning and 163.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:50,037 INFO L168 Benchmark]: RCFGBuilder took 1172.57 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 163.8 MB in the beginning and 193.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:50,038 INFO L168 Benchmark]: TraceAbstraction took 12959.32 ms. Allocated memory was 232.3 MB in the beginning and 363.3 MB in the end (delta: 131.1 MB). Free memory was 193.0 MB in the beginning and 139.1 MB in the end (delta: 53.9 MB). Peak memory consumption was 185.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:50,048 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 741.06 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 100.2 MB in the beginning and 167.9 MB in the end (delta: -67.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.18 ms. Allocated memory is still 200.8 MB. Free memory was 167.9 MB in the beginning and 163.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1172.57 ms. Allocated memory was 200.8 MB in the beginning and 232.3 MB in the end (delta: 31.5 MB). Free memory was 163.8 MB in the beginning and 193.0 MB in the end (delta: -29.3 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12959.32 ms. Allocated memory was 232.3 MB in the beginning and 363.3 MB in the end (delta: 131.1 MB). Free memory was 193.0 MB in the beginning and 139.1 MB in the end (delta: 53.9 MB). Peak memory consumption was 185.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 722]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L524] int pumpRunning = 0; [L525] int systemActive = 1; [L728] int waterLevel = 1; [L729] int methaneLevelCritical = 0; [L822] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=89, \old(head)=26, \old(head)=46, \old(methaneLevelCritical)=39, \old(pumpRunning)=40, \old(systemActive)=48, \old(waterLevel)=47, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L895] int retValue_acc ; [L896] 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] [L900] 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] [L901] 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] [L902] 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] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] 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] [L902] 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] [L902] tmp = valid_product() [L904] 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] [L906] 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] [L907] 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] [L889] 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] [L450] int splverifierCounter ; [L451] int tmp ; [L452] int tmp___0 ; [L453] int tmp___1 ; [L454] int tmp___2 ; [L457] 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] [L459] 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] [L461] 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] [L467] tmp = __VERIFIER_nondet_int() [L469] 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] [L471] 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] [L746] COND TRUE waterLevel < 2 [L747] 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] [L471] 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] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] 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] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) 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___2=1, waterLevel=2] [L504] 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] [L532] 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] [L539] 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] [L541] 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] [L587] 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] [L590] 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] [L605] CALL processEnvironment__wrappee__highWaterSensor() 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] [L561] 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] [L564] COND TRUE ! 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] [L566] CALL, EXPR isHighWaterLevel() 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] [L684] int retValue_acc ; [L685] int tmp ; [L686] int tmp___0 ; 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] [L690] CALL, EXPR isHighWaterSensorDry() 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] [L808] int retValue_acc ; 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] [L811] COND FALSE !(waterLevel < 2) [L815] retValue_acc = 0 [L816] 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] [L690] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L690] tmp = isHighWaterSensorDry() [L692] COND FALSE !(\read(tmp)) [L695] tmp___0 = 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=1, waterLevel=2] [L697] retValue_acc = tmp___0 [L698] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L566] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L566] tmp = isHighWaterLevel() [L568] COND TRUE \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=1, waterLevel=2] [L570] CALL activatePump() 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] [L615] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L570] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L605] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] 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=1, retValue_acc=2, systemActive=1, waterLevel=2] [L924] 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=1, systemActive=1, waterLevel=2] [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L547] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L504] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L459] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L461] 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=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L467] tmp = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L532] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L534] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L734] COND TRUE waterLevel > 0 [L735] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L590] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L628] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L767] int retValue_acc ; [L770] retValue_acc = methaneLevelCritical [L771] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L632] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L632] retValue_acc = isMethaneLevelCritical() [L634] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L592] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] tmp = isMethaneAlarm() [L594] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L600] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L564] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L579] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L600] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L924] tmp = getWaterLevel() [L926] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L547] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L504] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L459] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L461] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L467] tmp = __VERIFIER_nondet_int() [L469] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L477] tmp___0 = __VERIFIER_nondet_int() [L479] 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=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L487] tmp___2 = __VERIFIER_nondet_int() [L489] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L504] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L532] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L534] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L734] COND TRUE waterLevel > 0 [L735] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L534] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L539] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L541] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L587] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L590] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L628] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L767] int retValue_acc ; [L770] retValue_acc = methaneLevelCritical [L771] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L632] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L632] retValue_acc = isMethaneLevelCritical() [L634] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L592] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] tmp = isMethaneAlarm() [L594] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L600] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L564] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L579] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L600] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L541] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L547] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L919] int tmp ; [L920] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L799] int retValue_acc ; [L802] retValue_acc = waterLevel [L803] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L924] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L924] tmp = getWaterLevel() [L926] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L928] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L639] int retValue_acc ; [L642] retValue_acc = pumpRunning [L643] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L928] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L928] tmp___0 = isPumpRunning() [L930] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L932] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L722] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 231 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1801 SDtfs, 1035 SDslu, 2929 SDs, 0 SdLazy, 1772 SolverSat, 419 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1168 GetRequests, 1112 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=966occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 221 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1210 NumberOfCodeBlocks, 1063 NumberOfCodeBlocksAsserted, 41 NumberOfCheckSat, 1143 ConstructedInterpolants, 0 QuantifiedInterpolants, 199785 SizeOfPredicates, 32 NumberOfNonLiveVariables, 8049 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 206/219 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...