/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_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:40:34,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:40:34,852 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:40:34,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:40:34,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:40:34,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:40:34,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:40:34,886 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:40:34,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:40:34,893 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:40:34,894 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:40:34,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:40:34,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:40:34,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:40:34,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:40:34,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:40:34,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:40:34,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:40:34,904 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:40:34,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:40:34,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:40:34,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:40:34,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:40:34,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:40:34,921 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:40:34,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:40:34,922 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:40:34,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:40:34,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:40:34,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:40:34,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:40:34,928 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:40:34,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:40:34,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:40:34,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:40:34,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:40:34,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:40:34,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:40:34,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:40:34,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:40:34,933 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:40:34,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:40:34,968 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:40:34,968 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:40:34,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:40:34,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:40:34,971 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:40:34,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:40:34,971 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:40:34,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:40:34,971 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:40:34,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:40:34,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:40:34,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:40:34,974 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:40:34,975 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:40:34,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:40:34,975 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:40:34,975 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:40:34,976 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:40:34,976 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:40:34,976 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:40:34,976 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:40:34,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:34,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:40:34,977 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:40:34,977 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:40:34,977 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:40:34,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:34,978 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:40:34,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:40:34,978 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_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:40:35,291 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:40:35,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:40:35,308 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:40:35,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:40:35,310 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:40:35,310 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-07-21 15:40:35,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710f528f9/362b5744a81b4ad581bd4d61b499cc04/FLAG944e8de86 [2020-07-21 15:40:35,846 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:40:35,847 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-07-21 15:40:35,873 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710f528f9/362b5744a81b4ad581bd4d61b499cc04/FLAG944e8de86 [2020-07-21 15:40:36,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/710f528f9/362b5744a81b4ad581bd4d61b499cc04 [2020-07-21 15:40:36,237 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:40:36,240 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:40:36,241 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:36,241 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:40:36,245 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:40:36,246 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db7bd40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36, skipping insertion in model container [2020-07-21 15:40:36,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,257 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:40:36,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:40:36,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:36,775 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:40:36,851 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:36,885 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:40:36,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36 WrapperNode [2020-07-21 15:40:36,886 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:36,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:40:36,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:40:36,887 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:40:36,902 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,924 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,954 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,964 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,969 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... [2020-07-21 15:40:36,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:40:36,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:40:36,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:40:36,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:40:36,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:37,075 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:40:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:40:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 15:40:37,076 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 15:40:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:37,077 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:40:37,078 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:40:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:40:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:40:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:40:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:40:37,079 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 15:40:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:40:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:40:37,080 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:40:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:40:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:40:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:40:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:40:37,081 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:40:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:40:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:40:37,082 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:40:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:40:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:40:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:40:37,083 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:40:37,084 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:40:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:40:37,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:40:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:40:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:40:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:40:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:40:37,085 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:40:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:40:37,086 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 15:40:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 15:40:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:40:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:40:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:40:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:37,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:40:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:40:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:40:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:40:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:37,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:40:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:40:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:40:37,089 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:40:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:40:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:40:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:40:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:40:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:40:37,090 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:40:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:40:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:40:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:40:37,091 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:40:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:40:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:40:37,092 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 15:40:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:40:37,093 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:40:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:40:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:40:37,094 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:40:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:40:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:40:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:40:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:40:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:40:37,095 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:40:37,096 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:40:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:40:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:40:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:40:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:40:37,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:40:38,178 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:40:38,179 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:40:38,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:38 BoogieIcfgContainer [2020-07-21 15:40:38,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:40:38,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:40:38,190 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:40:38,193 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:40:38,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:40:36" (1/3) ... [2020-07-21 15:40:38,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f23f401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:38, skipping insertion in model container [2020-07-21 15:40:38,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:36" (2/3) ... [2020-07-21 15:40:38,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f23f401 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:38, skipping insertion in model container [2020-07-21 15:40:38,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:38" (3/3) ... [2020-07-21 15:40:38,198 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-07-21 15:40:38,210 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:40:38,220 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:40:38,235 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:40:38,275 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:40:38,275 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:40:38,275 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:40:38,275 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:40:38,276 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:40:38,276 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:40:38,276 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:40:38,276 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:40:38,301 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-07-21 15:40:38,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 15:40:38,311 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:38,312 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] [2020-07-21 15:40:38,313 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:38,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:38,317 INFO L82 PathProgramCache]: Analyzing trace with hash -1966863296, now seen corresponding path program 1 times [2020-07-21 15:40:38,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:38,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551318260] [2020-07-21 15:40:38,325 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:38,700 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:38,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:38,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:40:38,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:38,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:38,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:38,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551318260] [2020-07-21 15:40:38,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:38,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:40:38,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003628698] [2020-07-21 15:40:38,762 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:40:38,763 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:38,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:40:38,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:38,782 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2020-07-21 15:40:38,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:38,824 INFO L93 Difference]: Finished difference Result 240 states and 299 transitions. [2020-07-21 15:40:38,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:40:38,826 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 15:40:38,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:38,839 INFO L225 Difference]: With dead ends: 240 [2020-07-21 15:40:38,840 INFO L226 Difference]: Without dead ends: 122 [2020-07-21 15:40:38,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:38,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-21 15:40:38,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-07-21 15:40:38,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-21 15:40:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-07-21 15:40:38,901 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 51 [2020-07-21 15:40:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:38,902 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-07-21 15:40:38,902 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:40:38,902 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-07-21 15:40:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:40:38,906 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:38,906 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:39,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:39,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:39,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:39,122 INFO L82 PathProgramCache]: Analyzing trace with hash 335710898, now seen corresponding path program 1 times [2020-07-21 15:40:39,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:39,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [854733672] [2020-07-21 15:40:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:39,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:39,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:39,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:40:39,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:39,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:39,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:39,555 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [854733672] [2020-07-21 15:40:39,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:39,556 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:39,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510279468] [2020-07-21 15:40:39,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:39,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:39,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:39,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:39,563 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 3 states. [2020-07-21 15:40:39,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:39,607 INFO L93 Difference]: Finished difference Result 216 states and 261 transitions. [2020-07-21 15:40:39,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:39,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 15:40:39,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:39,617 INFO L225 Difference]: With dead ends: 216 [2020-07-21 15:40:39,618 INFO L226 Difference]: Without dead ends: 122 [2020-07-21 15:40:39,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:39,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-21 15:40:39,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-07-21 15:40:39,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-21 15:40:39,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2020-07-21 15:40:39,650 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 52 [2020-07-21 15:40:39,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:39,650 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2020-07-21 15:40:39,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:39,651 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2020-07-21 15:40:39,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 15:40:39,663 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:39,663 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] [2020-07-21 15:40:39,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:39,864 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:39,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:39,864 INFO L82 PathProgramCache]: Analyzing trace with hash -1748806687, now seen corresponding path program 1 times [2020-07-21 15:40:39,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:39,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [749485116] [2020-07-21 15:40:39,866 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:40,148 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:40,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:40,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:40:40,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:40,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:40,179 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [749485116] [2020-07-21 15:40:40,180 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:40,180 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:40,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643528782] [2020-07-21 15:40:40,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:40,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:40,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:40,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:40,182 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand 3 states. [2020-07-21 15:40:40,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:40,195 INFO L93 Difference]: Finished difference Result 189 states and 219 transitions. [2020-07-21 15:40:40,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:40,196 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 15:40:40,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:40,198 INFO L225 Difference]: With dead ends: 189 [2020-07-21 15:40:40,198 INFO L226 Difference]: Without dead ends: 113 [2020-07-21 15:40:40,199 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:40,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-21 15:40:40,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-21 15:40:40,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-21 15:40:40,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2020-07-21 15:40:40,211 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 60 [2020-07-21 15:40:40,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:40,211 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2020-07-21 15:40:40,211 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:40,211 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2020-07-21 15:40:40,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 15:40:40,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:40,213 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:40,427 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:40,428 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:40,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:40,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1730792410, now seen corresponding path program 1 times [2020-07-21 15:40:40,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:40,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1229458505] [2020-07-21 15:40:40,431 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:40,727 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:40,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:40,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:40,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:40,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:40,773 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:40,773 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1229458505] [2020-07-21 15:40:40,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:40,773 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:40,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306446079] [2020-07-21 15:40:40,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:40,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:40,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:40,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:40,775 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 3 states. [2020-07-21 15:40:40,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:40,810 INFO L93 Difference]: Finished difference Result 198 states and 236 transitions. [2020-07-21 15:40:40,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:40,811 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-07-21 15:40:40,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:40,815 INFO L225 Difference]: With dead ends: 198 [2020-07-21 15:40:40,815 INFO L226 Difference]: Without dead ends: 195 [2020-07-21 15:40:40,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:40,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2020-07-21 15:40:40,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2020-07-21 15:40:40,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-21 15:40:40,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 233 transitions. [2020-07-21 15:40:40,842 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 233 transitions. Word has length 64 [2020-07-21 15:40:40,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:40,842 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 233 transitions. [2020-07-21 15:40:40,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 233 transitions. [2020-07-21 15:40:40,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 15:40:40,845 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:40,845 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, 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] [2020-07-21 15:40:41,059 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:41,060 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:41,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:41,061 INFO L82 PathProgramCache]: Analyzing trace with hash 908631976, now seen corresponding path program 1 times [2020-07-21 15:40:41,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:41,062 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1277600250] [2020-07-21 15:40:41,063 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:41,300 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:41,301 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:41,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:41,309 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:41,372 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 15:40:41,372 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:41,373 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1277600250] [2020-07-21 15:40:41,373 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:41,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 15:40:41,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679628375] [2020-07-21 15:40:41,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 15:40:41,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:41,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 15:40:41,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:41,375 INFO L87 Difference]: Start difference. First operand 195 states and 233 transitions. Second operand 7 states. [2020-07-21 15:40:42,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:42,134 INFO L93 Difference]: Finished difference Result 459 states and 586 transitions. [2020-07-21 15:40:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 15:40:42,134 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 102 [2020-07-21 15:40:42,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:42,138 INFO L225 Difference]: With dead ends: 459 [2020-07-21 15:40:42,138 INFO L226 Difference]: Without dead ends: 292 [2020-07-21 15:40:42,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:40:42,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2020-07-21 15:40:42,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 268. [2020-07-21 15:40:42,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-07-21 15:40:42,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 326 transitions. [2020-07-21 15:40:42,176 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 326 transitions. Word has length 102 [2020-07-21 15:40:42,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:42,177 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 326 transitions. [2020-07-21 15:40:42,177 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 15:40:42,177 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 326 transitions. [2020-07-21 15:40:42,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-21 15:40:42,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:42,180 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:42,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:42,390 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:42,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:42,391 INFO L82 PathProgramCache]: Analyzing trace with hash 185980349, now seen corresponding path program 1 times [2020-07-21 15:40:42,391 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:42,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1052915629] [2020-07-21 15:40:42,392 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:42,636 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:42,636 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:42,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 15:40:42,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:42,777 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 27 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-21 15:40:42,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:40:43,322 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 15:40:43,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1052915629] [2020-07-21 15:40:43,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:40:43,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-07-21 15:40:43,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582743819] [2020-07-21 15:40:43,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-21 15:40:43,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:43,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-21 15:40:43,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-07-21 15:40:43,326 INFO L87 Difference]: Start difference. First operand 268 states and 326 transitions. Second operand 17 states. [2020-07-21 15:40:44,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:44,380 INFO L93 Difference]: Finished difference Result 685 states and 887 transitions. [2020-07-21 15:40:44,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 15:40:44,381 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 136 [2020-07-21 15:40:44,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:44,392 INFO L225 Difference]: With dead ends: 685 [2020-07-21 15:40:44,393 INFO L226 Difference]: Without dead ends: 445 [2020-07-21 15:40:44,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 257 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=109, Invalid=443, Unknown=0, NotChecked=0, Total=552 [2020-07-21 15:40:44,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-07-21 15:40:44,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 432. [2020-07-21 15:40:44,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 432 states. [2020-07-21 15:40:44,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 432 states to 432 states and 528 transitions. [2020-07-21 15:40:44,467 INFO L78 Accepts]: Start accepts. Automaton has 432 states and 528 transitions. Word has length 136 [2020-07-21 15:40:44,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:44,469 INFO L479 AbstractCegarLoop]: Abstraction has 432 states and 528 transitions. [2020-07-21 15:40:44,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-21 15:40:44,469 INFO L276 IsEmpty]: Start isEmpty. Operand 432 states and 528 transitions. [2020-07-21 15:40:44,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 15:40:44,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:44,482 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:44,695 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:44,699 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:44,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:44,700 INFO L82 PathProgramCache]: Analyzing trace with hash 508020119, now seen corresponding path program 1 times [2020-07-21 15:40:44,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:44,701 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78056061] [2020-07-21 15:40:44,701 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:44,902 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:44,902 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:44,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:40:44,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:44,960 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 15:40:44,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:44,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78056061] [2020-07-21 15:40:44,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:44,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:44,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709607145] [2020-07-21 15:40:44,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:44,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:44,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:44,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:44,963 INFO L87 Difference]: Start difference. First operand 432 states and 528 transitions. Second operand 6 states. [2020-07-21 15:40:45,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:45,007 INFO L93 Difference]: Finished difference Result 860 states and 1079 transitions. [2020-07-21 15:40:45,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:45,007 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-21 15:40:45,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:45,011 INFO L225 Difference]: With dead ends: 860 [2020-07-21 15:40:45,011 INFO L226 Difference]: Without dead ends: 456 [2020-07-21 15:40:45,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:45,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2020-07-21 15:40:45,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 452. [2020-07-21 15:40:45,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 452 states. [2020-07-21 15:40:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 452 states to 452 states and 548 transitions. [2020-07-21 15:40:45,042 INFO L78 Accepts]: Start accepts. Automaton has 452 states and 548 transitions. Word has length 175 [2020-07-21 15:40:45,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:45,043 INFO L479 AbstractCegarLoop]: Abstraction has 452 states and 548 transitions. [2020-07-21 15:40:45,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:45,043 INFO L276 IsEmpty]: Start isEmpty. Operand 452 states and 548 transitions. [2020-07-21 15:40:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 15:40:45,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:45,047 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:45,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:45,261 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:45,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash 1521409725, now seen corresponding path program 1 times [2020-07-21 15:40:45,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:45,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800703308] [2020-07-21 15:40:45,263 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:45,488 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:45,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:45,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:40:45,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:45,532 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 15:40:45,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:45,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800703308] [2020-07-21 15:40:45,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:45,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:40:45,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865744165] [2020-07-21 15:40:45,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:45,534 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:45,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:45,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:45,535 INFO L87 Difference]: Start difference. First operand 452 states and 548 transitions. Second operand 5 states. [2020-07-21 15:40:45,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:45,569 INFO L93 Difference]: Finished difference Result 904 states and 1132 transitions. [2020-07-21 15:40:45,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:40:45,570 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 179 [2020-07-21 15:40:45,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:45,575 INFO L225 Difference]: With dead ends: 904 [2020-07-21 15:40:45,575 INFO L226 Difference]: Without dead ends: 480 [2020-07-21 15:40:45,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:45,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-07-21 15:40:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 468. [2020-07-21 15:40:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 468 states. [2020-07-21 15:40:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 564 transitions. [2020-07-21 15:40:45,616 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 564 transitions. Word has length 179 [2020-07-21 15:40:45,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:45,617 INFO L479 AbstractCegarLoop]: Abstraction has 468 states and 564 transitions. [2020-07-21 15:40:45,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 564 transitions. [2020-07-21 15:40:45,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 15:40:45,620 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:45,620 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:45,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:45,835 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:45,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:45,836 INFO L82 PathProgramCache]: Analyzing trace with hash 1047383742, now seen corresponding path program 1 times [2020-07-21 15:40:45,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:45,837 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1552437743] [2020-07-21 15:40:45,837 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:46,032 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:46,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:46,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 15:40:46,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:46,097 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 15:40:46,097 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:46,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1552437743] [2020-07-21 15:40:46,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:46,098 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:46,098 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906880394] [2020-07-21 15:40:46,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:46,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:46,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:46,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:46,118 INFO L87 Difference]: Start difference. First operand 468 states and 564 transitions. Second operand 6 states. [2020-07-21 15:40:46,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:46,452 INFO L93 Difference]: Finished difference Result 930 states and 1129 transitions. [2020-07-21 15:40:46,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:46,453 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 179 [2020-07-21 15:40:46,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:46,457 INFO L225 Difference]: With dead ends: 930 [2020-07-21 15:40:46,457 INFO L226 Difference]: Without dead ends: 466 [2020-07-21 15:40:46,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:46,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-07-21 15:40:46,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 388. [2020-07-21 15:40:46,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 388 states. [2020-07-21 15:40:46,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 450 transitions. [2020-07-21 15:40:46,488 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 450 transitions. Word has length 179 [2020-07-21 15:40:46,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:46,488 INFO L479 AbstractCegarLoop]: Abstraction has 388 states and 450 transitions. [2020-07-21 15:40:46,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:46,488 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 450 transitions. [2020-07-21 15:40:46,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-21 15:40:46,491 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:46,492 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:46,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:46,705 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:46,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:46,705 INFO L82 PathProgramCache]: Analyzing trace with hash -672602470, now seen corresponding path program 2 times [2020-07-21 15:40:46,706 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:46,706 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1410168639] [2020-07-21 15:40:46,706 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:46,892 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:46,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:46,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:40:46,900 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:46,971 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-21 15:40:46,972 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:46,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1410168639] [2020-07-21 15:40:46,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:46,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:46,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167828882] [2020-07-21 15:40:46,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:46,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:46,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:46,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:46,975 INFO L87 Difference]: Start difference. First operand 388 states and 450 transitions. Second operand 6 states. [2020-07-21 15:40:47,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:47,717 INFO L93 Difference]: Finished difference Result 1147 states and 1484 transitions. [2020-07-21 15:40:47,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:40:47,718 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 175 [2020-07-21 15:40:47,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:47,726 INFO L225 Difference]: With dead ends: 1147 [2020-07-21 15:40:47,726 INFO L226 Difference]: Without dead ends: 787 [2020-07-21 15:40:47,730 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:47,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 787 states. [2020-07-21 15:40:47,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 787 to 754. [2020-07-21 15:40:47,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2020-07-21 15:40:47,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 934 transitions. [2020-07-21 15:40:47,809 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 934 transitions. Word has length 175 [2020-07-21 15:40:47,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:47,809 INFO L479 AbstractCegarLoop]: Abstraction has 754 states and 934 transitions. [2020-07-21 15:40:47,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:47,809 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 934 transitions. [2020-07-21 15:40:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-07-21 15:40:47,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:47,814 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:48,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:48,030 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:48,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:48,031 INFO L82 PathProgramCache]: Analyzing trace with hash -1083202852, now seen corresponding path program 1 times [2020-07-21 15:40:48,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:48,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [113045336] [2020-07-21 15:40:48,032 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:48,312 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:48,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:48,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 20 conjunts are in the unsatisfiable core [2020-07-21 15:40:48,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:48,397 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 68 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 15:40:48,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:40:48,540 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:48,569 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:48,607 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:48,684 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:48,715 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:48,881 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 42 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 15:40:48,881 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [113045336] [2020-07-21 15:40:48,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:40:48,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2020-07-21 15:40:48,882 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131380699] [2020-07-21 15:40:48,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-21 15:40:48,883 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:48,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-21 15:40:48,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2020-07-21 15:40:48,884 INFO L87 Difference]: Start difference. First operand 754 states and 934 transitions. Second operand 13 states. [2020-07-21 15:40:49,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:49,948 INFO L93 Difference]: Finished difference Result 2124 states and 3099 transitions. [2020-07-21 15:40:49,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 15:40:49,948 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 183 [2020-07-21 15:40:49,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:49,959 INFO L225 Difference]: With dead ends: 2124 [2020-07-21 15:40:49,960 INFO L226 Difference]: Without dead ends: 1398 [2020-07-21 15:40:49,964 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 351 SyntacticMatches, 8 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=271, Unknown=0, NotChecked=0, Total=420 [2020-07-21 15:40:49,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1398 states. [2020-07-21 15:40:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1398 to 1300. [2020-07-21 15:40:50,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1300 states. [2020-07-21 15:40:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1960 transitions. [2020-07-21 15:40:50,055 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1960 transitions. Word has length 183 [2020-07-21 15:40:50,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:50,056 INFO L479 AbstractCegarLoop]: Abstraction has 1300 states and 1960 transitions. [2020-07-21 15:40:50,056 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-21 15:40:50,056 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1960 transitions. [2020-07-21 15:40:50,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-07-21 15:40:50,064 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:50,065 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1] [2020-07-21 15:40:50,278 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:50,279 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:50,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:50,280 INFO L82 PathProgramCache]: Analyzing trace with hash -816212520, now seen corresponding path program 1 times [2020-07-21 15:40:50,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:50,280 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1222436583] [2020-07-21 15:40:50,280 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 15:40:50,551 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:50,551 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:50,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 873 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 15:40:50,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:50,715 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2020-07-21 15:40:50,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:50,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1222436583] [2020-07-21 15:40:50,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:50,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 15:40:50,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836342128] [2020-07-21 15:40:50,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 15:40:50,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:50,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 15:40:50,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:50,718 INFO L87 Difference]: Start difference. First operand 1300 states and 1960 transitions. Second operand 8 states. [2020-07-21 15:40:51,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:51,937 INFO L93 Difference]: Finished difference Result 3271 states and 4995 transitions. [2020-07-21 15:40:51,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 15:40:51,938 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-07-21 15:40:51,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:51,960 INFO L225 Difference]: With dead ends: 3271 [2020-07-21 15:40:51,960 INFO L226 Difference]: Without dead ends: 1999 [2020-07-21 15:40:51,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-07-21 15:40:51,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1999 states. [2020-07-21 15:40:52,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1999 to 1789. [2020-07-21 15:40:52,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1789 states. [2020-07-21 15:40:52,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1789 states to 1789 states and 2634 transitions. [2020-07-21 15:40:52,149 INFO L78 Accepts]: Start accepts. Automaton has 1789 states and 2634 transitions. Word has length 232 [2020-07-21 15:40:52,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:52,150 INFO L479 AbstractCegarLoop]: Abstraction has 1789 states and 2634 transitions. [2020-07-21 15:40:52,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 15:40:52,150 INFO L276 IsEmpty]: Start isEmpty. Operand 1789 states and 2634 transitions. [2020-07-21 15:40:52,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 15:40:52,156 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:52,158 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:52,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:52,373 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:52,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:52,373 INFO L82 PathProgramCache]: Analyzing trace with hash -402984640, now seen corresponding path program 1 times [2020-07-21 15:40:52,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:52,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [960066288] [2020-07-21 15:40:52,374 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:52,887 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:52,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 15:40:52,888 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:40:53,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 15:40:53,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:40:53,513 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 15:40:53,514 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 15:40:53,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:53,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:40:53 BoogieIcfgContainer [2020-07-21 15:40:53,968 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:40:53,970 INFO L168 Benchmark]: Toolchain (without parser) took 17731.34 ms. Allocated memory was 138.4 MB in the beginning and 470.3 MB in the end (delta: 331.9 MB). Free memory was 102.2 MB in the beginning and 270.2 MB in the end (delta: -168.0 MB). Peak memory consumption was 163.9 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:53,971 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:40:53,976 INFO L168 Benchmark]: CACSL2BoogieTranslator took 645.81 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 171.4 MB in the end (delta: -69.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:53,978 INFO L168 Benchmark]: Boogie Preprocessor took 89.88 ms. Allocated memory is still 202.9 MB. Free memory was 171.4 MB in the beginning and 166.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:53,982 INFO L168 Benchmark]: RCFGBuilder took 1211.23 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.7 MB in the beginning and 196.7 MB in the end (delta: -30.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:53,985 INFO L168 Benchmark]: TraceAbstraction took 15777.59 ms. Allocated memory was 235.9 MB in the beginning and 470.3 MB in the end (delta: 234.4 MB). Free memory was 196.7 MB in the beginning and 270.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 160.8 MB. Max. memory is 7.1 GB. [2020-07-21 15:40:53,991 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 645.81 ms. Allocated memory was 138.4 MB in the beginning and 202.9 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 171.4 MB in the end (delta: -69.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.88 ms. Allocated memory is still 202.9 MB. Free memory was 171.4 MB in the beginning and 166.7 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1211.23 ms. Allocated memory was 202.9 MB in the beginning and 235.9 MB in the end (delta: 33.0 MB). Free memory was 166.7 MB in the beginning and 196.7 MB in the end (delta: -30.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15777.59 ms. Allocated memory was 235.9 MB in the beginning and 470.3 MB in the end (delta: 234.4 MB). Free memory was 196.7 MB in the beginning and 270.2 MB in the end (delta: -73.5 MB). Peak memory consumption was 160.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 830]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L43] int methAndRunningLastTime ; [L251] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L455] int pumpRunning = 0; [L456] int systemActive = 1; [L628] int waterLevel = 1; [L629] int methaneLevelCritical = 0; [L835] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=92, \old(head)=56, \old(head)=31, \old(methAndRunningLastTime)=72, \old(methaneLevelCritical)=42, \old(pumpRunning)=54, \old(systemActive)=93, \old(waterLevel)=57, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int retValue_acc ; [L910] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L914] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L916] tmp = valid_product() [L918] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L920] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L921] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L903] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L724] int splverifierCounter ; [L725] int tmp ; [L726] int tmp___0 ; [L727] int tmp___1 ; [L728] int tmp___2 ; [L731] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L745] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L646] COND TRUE waterLevel < 2 [L647] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] COND FALSE !(waterLevel < 2) [L715] retValue_acc = 0 [L716] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L612] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp = isHighWaterSensorDry() [L614] COND FALSE !(\read(tmp)) [L617] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L496] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] tmp = isHighWaterLevel() [L498] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L500] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L554] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] retValue_acc = isMethaneLevelCritical() [L556] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L529] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] tmp = isMethaneAlarm() [L531] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L535] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L535] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L500] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L755] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] COND FALSE !(\read(methaneLevelCritical)) [L661] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L65] COND FALSE !(\read(methAndRunningLastTime)) [L70] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=-1, tmp___2=1, waterLevel=1] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L65] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L67] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L830] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.4s, OverallIterations: 13, TraceHistogramMax: 5, AutomataDifference: 5.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1856 SDtfs, 2117 SDslu, 3761 SDs, 0 SdLazy, 2721 SolverSat, 1184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1935 GetRequests, 1844 SyntacticMatches, 9 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1789occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 12 MinimizatonAttempts, 472 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 1767 NumberOfCodeBlocks, 1299 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1893 ConstructedInterpolants, 0 QuantifiedInterpolants, 509406 SizeOfPredicates, 34 NumberOfNonLiveVariables, 9425 ConjunctsInSsa, 125 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 909/930 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...