/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:25:11,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:25:11,913 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:25:11,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:25:11,932 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:25:11,935 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:25:11,937 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:25:11,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:25:11,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:25:11,954 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:25:11,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:25:11,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:25:11,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:25:11,959 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:25:11,961 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:25:11,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:25:11,964 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:25:11,964 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:25:11,966 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:25:11,971 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:25:11,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:25:11,979 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:25:11,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:25:11,980 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:25:11,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:25:11,983 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:25:11,983 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:25:11,985 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:25:11,986 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:25:11,987 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:25:11,987 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:25:11,988 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:25:11,989 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:25:11,990 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:25:11,991 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:25:11,991 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:25:11,992 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:25:11,992 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:25:11,992 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:25:11,993 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:25:11,994 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:25:11,995 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 16:25:12,030 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:25:12,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:25:12,032 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:25:12,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:25:12,033 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:25:12,034 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:25:12,034 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:25:12,034 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:25:12,034 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:25:12,034 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:25:12,035 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:25:12,035 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:25:12,035 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:25:12,035 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:25:12,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:25:12,036 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:25:12,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:25:12,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:25:12,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:25:12,036 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:25:12,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:25:12,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:12,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:25:12,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:25:12,038 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:25:12,038 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:25:12,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:12,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:25:12,038 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:25:12,039 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 -> 4 [2020-07-20 16:25:12,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:25:12,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:25:12,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:25:12,362 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:25:12,363 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:25:12,364 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-07-20 16:25:12,431 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f32e381d/391e4117c31b463f983ac560c1726758/FLAG2b965f078 [2020-07-20 16:25:12,952 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:25:12,953 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product43.cil.c [2020-07-20 16:25:12,965 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f32e381d/391e4117c31b463f983ac560c1726758/FLAG2b965f078 [2020-07-20 16:25:13,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f32e381d/391e4117c31b463f983ac560c1726758 [2020-07-20 16:25:13,277 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:25:13,280 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:25:13,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:13,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:25:13,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:25:13,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,290 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fb56e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13, skipping insertion in model container [2020-07-20 16:25:13,290 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:25:13,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:25:13,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:13,768 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:25:13,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:13,898 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:25:13,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13 WrapperNode [2020-07-20 16:25:13,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:13,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:25:13,904 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:25:13,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:25:13,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,937 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,973 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:13,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:14,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... [2020-07-20 16:25:14,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:25:14,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:25:14,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:25:14,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:25:14,021 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:14,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:25:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:25:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:25:14,105 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:25:14,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:25:14,106 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:25:14,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:25:14,106 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:25:14,107 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:25:14,107 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:25:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:25:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:25:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:25:14,108 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 16:25:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:25:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:25:14,109 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:25:14,110 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:25:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:25:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:25:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:25:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:25:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:25:14,111 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:25:14,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:25:14,113 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:25:14,113 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:25:14,114 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:25:14,115 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:25:14,116 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:25:14,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:25:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:14,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:25:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:25:14,121 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:25:15,109 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:25:15,109 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:25:15,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:15 BoogieIcfgContainer [2020-07-20 16:25:15,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:25:15,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:25:15,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:25:15,119 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:25:15,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:25:13" (1/3) ... [2020-07-20 16:25:15,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d2fa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:15, skipping insertion in model container [2020-07-20 16:25:15,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:13" (2/3) ... [2020-07-20 16:25:15,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d2fa2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:15, skipping insertion in model container [2020-07-20 16:25:15,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:15" (3/3) ... [2020-07-20 16:25:15,123 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product43.cil.c [2020-07-20 16:25:15,134 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:25:15,142 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:25:15,156 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:25:15,179 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:25:15,180 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:25:15,180 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:25:15,180 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:25:15,180 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:25:15,180 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:25:15,181 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:25:15,181 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:25:15,202 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states. [2020-07-20 16:25:15,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:25:15,212 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:15,213 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] [2020-07-20 16:25:15,214 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:15,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:15,220 INFO L82 PathProgramCache]: Analyzing trace with hash 104665002, now seen corresponding path program 1 times [2020-07-20 16:25:15,228 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:15,228 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815333657] [2020-07-20 16:25:15,229 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:15,671 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:15,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:15,679 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:25:15,689 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:15,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:15,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:15,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815333657] [2020-07-20 16:25:15,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:15,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:25:15,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511262818] [2020-07-20 16:25:15,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:25:15,738 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:15,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:25:15,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:15,761 INFO L87 Difference]: Start difference. First operand 172 states. Second operand 2 states. [2020-07-20 16:25:15,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:15,813 INFO L93 Difference]: Finished difference Result 258 states and 315 transitions. [2020-07-20 16:25:15,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:25:15,816 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:25:15,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:15,835 INFO L225 Difference]: With dead ends: 258 [2020-07-20 16:25:15,836 INFO L226 Difference]: Without dead ends: 129 [2020-07-20 16:25:15,845 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:15,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2020-07-20 16:25:15,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2020-07-20 16:25:15,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-20 16:25:15,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 149 transitions. [2020-07-20 16:25:15,937 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 149 transitions. Word has length 46 [2020-07-20 16:25:15,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:15,943 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 149 transitions. [2020-07-20 16:25:15,943 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:25:15,943 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 149 transitions. [2020-07-20 16:25:15,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:25:15,947 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:15,947 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:16,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:16,163 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:16,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:16,164 INFO L82 PathProgramCache]: Analyzing trace with hash 149584290, now seen corresponding path program 1 times [2020-07-20 16:25:16,165 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:16,165 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [340898196] [2020-07-20 16:25:16,166 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:16,565 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:16,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:16,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:25:16,573 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:16,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:16,608 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:16,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [340898196] [2020-07-20 16:25:16,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:16,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:16,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050066047] [2020-07-20 16:25:16,611 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:16,611 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:16,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:16,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:16,612 INFO L87 Difference]: Start difference. First operand 129 states and 149 transitions. Second operand 3 states. [2020-07-20 16:25:16,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:16,636 INFO L93 Difference]: Finished difference Result 198 states and 227 transitions. [2020-07-20 16:25:16,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:16,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:25:16,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:16,639 INFO L225 Difference]: With dead ends: 198 [2020-07-20 16:25:16,639 INFO L226 Difference]: Without dead ends: 120 [2020-07-20 16:25:16,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:16,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-07-20 16:25:16,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-07-20 16:25:16,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-07-20 16:25:16,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 137 transitions. [2020-07-20 16:25:16,653 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 137 transitions. Word has length 47 [2020-07-20 16:25:16,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:16,654 INFO L479 AbstractCegarLoop]: Abstraction has 120 states and 137 transitions. [2020-07-20 16:25:16,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:16,654 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 137 transitions. [2020-07-20 16:25:16,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:25:16,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:16,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:16,869 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:16,870 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:16,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:16,870 INFO L82 PathProgramCache]: Analyzing trace with hash 964261252, now seen corresponding path program 1 times [2020-07-20 16:25:16,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:16,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [971907521] [2020-07-20 16:25:16,872 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:17,258 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:17,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:17,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:25:17,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:17,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:17,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:17,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [971907521] [2020-07-20 16:25:17,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:17,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:17,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030574105] [2020-07-20 16:25:17,326 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:17,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:17,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:17,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:17,327 INFO L87 Difference]: Start difference. First operand 120 states and 137 transitions. Second operand 6 states. [2020-07-20 16:25:17,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:17,633 INFO L93 Difference]: Finished difference Result 301 states and 363 transitions. [2020-07-20 16:25:17,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:17,634 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 51 [2020-07-20 16:25:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:17,638 INFO L225 Difference]: With dead ends: 301 [2020-07-20 16:25:17,639 INFO L226 Difference]: Without dead ends: 205 [2020-07-20 16:25:17,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:17,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-07-20 16:25:17,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-07-20 16:25:17,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-07-20 16:25:17,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 244 transitions. [2020-07-20 16:25:17,668 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 244 transitions. Word has length 51 [2020-07-20 16:25:17,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:17,668 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 244 transitions. [2020-07-20 16:25:17,668 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:17,669 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 244 transitions. [2020-07-20 16:25:17,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-07-20 16:25:17,671 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:17,671 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] [2020-07-20 16:25:17,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:17,885 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:17,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:17,886 INFO L82 PathProgramCache]: Analyzing trace with hash 1895803050, now seen corresponding path program 1 times [2020-07-20 16:25:17,886 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:17,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1401569330] [2020-07-20 16:25:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:18,235 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:18,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:18,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-20 16:25:18,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:18,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:18,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1401569330] [2020-07-20 16:25:18,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:18,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:18,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961927418] [2020-07-20 16:25:18,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:18,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:18,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:18,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:18,280 INFO L87 Difference]: Start difference. First operand 205 states and 244 transitions. Second operand 3 states. [2020-07-20 16:25:18,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:18,327 INFO L93 Difference]: Finished difference Result 474 states and 595 transitions. [2020-07-20 16:25:18,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:18,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-07-20 16:25:18,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:18,334 INFO L225 Difference]: With dead ends: 474 [2020-07-20 16:25:18,335 INFO L226 Difference]: Without dead ends: 293 [2020-07-20 16:25:18,339 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-20 16:25:18,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 290. [2020-07-20 16:25:18,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2020-07-20 16:25:18,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 357 transitions. [2020-07-20 16:25:18,377 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 357 transitions. Word has length 55 [2020-07-20 16:25:18,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:18,378 INFO L479 AbstractCegarLoop]: Abstraction has 290 states and 357 transitions. [2020-07-20 16:25:18,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:18,378 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 357 transitions. [2020-07-20 16:25:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 16:25:18,383 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:18,383 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:18,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:18,588 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:18,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:18,589 INFO L82 PathProgramCache]: Analyzing trace with hash -8192352, now seen corresponding path program 1 times [2020-07-20 16:25:18,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:18,590 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502078609] [2020-07-20 16:25:18,591 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:18,976 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:18,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:18,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:18,985 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:19,032 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 16:25:19,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:19,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502078609] [2020-07-20 16:25:19,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:19,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:19,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680829858] [2020-07-20 16:25:19,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:19,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:19,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:19,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:19,035 INFO L87 Difference]: Start difference. First operand 290 states and 357 transitions. Second operand 6 states. [2020-07-20 16:25:19,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:19,082 INFO L93 Difference]: Finished difference Result 570 states and 734 transitions. [2020-07-20 16:25:19,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:19,083 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-07-20 16:25:19,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:19,086 INFO L225 Difference]: With dead ends: 570 [2020-07-20 16:25:19,087 INFO L226 Difference]: Without dead ends: 304 [2020-07-20 16:25:19,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:19,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-20 16:25:19,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 300. [2020-07-20 16:25:19,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 300 states. [2020-07-20 16:25:19,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 368 transitions. [2020-07-20 16:25:19,119 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 368 transitions. Word has length 116 [2020-07-20 16:25:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:19,120 INFO L479 AbstractCegarLoop]: Abstraction has 300 states and 368 transitions. [2020-07-20 16:25:19,120 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:19,120 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 368 transitions. [2020-07-20 16:25:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 16:25:19,124 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:19,124 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:19,337 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:19,338 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:19,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:19,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1900265438, now seen corresponding path program 1 times [2020-07-20 16:25:19,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:19,340 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2134619084] [2020-07-20 16:25:19,341 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:19,490 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:25:19,490 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:19,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:25:19,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:19,525 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 16:25:19,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:19,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2134619084] [2020-07-20 16:25:19,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:19,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:25:19,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723584362] [2020-07-20 16:25:19,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:25:19,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:19,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:25:19,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:19,528 INFO L87 Difference]: Start difference. First operand 300 states and 368 transitions. Second operand 5 states. [2020-07-20 16:25:19,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:19,553 INFO L93 Difference]: Finished difference Result 557 states and 708 transitions. [2020-07-20 16:25:19,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:25:19,554 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-07-20 16:25:19,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:19,557 INFO L225 Difference]: With dead ends: 557 [2020-07-20 16:25:19,557 INFO L226 Difference]: Without dead ends: 281 [2020-07-20 16:25:19,558 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:19,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2020-07-20 16:25:19,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2020-07-20 16:25:19,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-07-20 16:25:19,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 344 transitions. [2020-07-20 16:25:19,580 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 344 transitions. Word has length 116 [2020-07-20 16:25:19,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:19,581 INFO L479 AbstractCegarLoop]: Abstraction has 281 states and 344 transitions. [2020-07-20 16:25:19,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:25:19,581 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 344 transitions. [2020-07-20 16:25:19,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-20 16:25:19,585 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:19,586 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:19,798 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:19,799 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:19,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:19,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1951090435, now seen corresponding path program 1 times [2020-07-20 16:25:19,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:19,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910215941] [2020-07-20 16:25:19,802 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:20,057 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 16:25:20,057 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:20,060 INFO L263 TraceCheckSpWp]: Trace formula consists of 702 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:25:20,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:20,122 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:20,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:20,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910215941] [2020-07-20 16:25:20,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:20,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:20,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48344856] [2020-07-20 16:25:20,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:20,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:20,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:20,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:20,125 INFO L87 Difference]: Start difference. First operand 281 states and 344 transitions. Second operand 6 states. [2020-07-20 16:25:20,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:20,999 INFO L93 Difference]: Finished difference Result 752 states and 982 transitions. [2020-07-20 16:25:21,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:21,002 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 116 [2020-07-20 16:25:21,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:21,009 INFO L225 Difference]: With dead ends: 752 [2020-07-20 16:25:21,009 INFO L226 Difference]: Without dead ends: 495 [2020-07-20 16:25:21,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:21,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2020-07-20 16:25:21,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 479. [2020-07-20 16:25:21,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 479 states. [2020-07-20 16:25:21,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 598 transitions. [2020-07-20 16:25:21,086 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 598 transitions. Word has length 116 [2020-07-20 16:25:21,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:21,087 INFO L479 AbstractCegarLoop]: Abstraction has 479 states and 598 transitions. [2020-07-20 16:25:21,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:21,087 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 598 transitions. [2020-07-20 16:25:21,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-20 16:25:21,091 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:21,092 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:21,306 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:21,307 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:21,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:21,307 INFO L82 PathProgramCache]: Analyzing trace with hash -136303689, now seen corresponding path program 1 times [2020-07-20 16:25:21,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:21,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1530892237] [2020-07-20 16:25:21,308 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:21,681 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:21,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:21,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 821 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:25:21,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:21,742 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 16:25:21,742 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:21,743 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1530892237] [2020-07-20 16:25:21,743 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:21,743 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:21,744 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539007377] [2020-07-20 16:25:21,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:21,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:21,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:21,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:21,745 INFO L87 Difference]: Start difference. First operand 479 states and 598 transitions. Second operand 3 states. [2020-07-20 16:25:21,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:21,813 INFO L93 Difference]: Finished difference Result 1337 states and 1700 transitions. [2020-07-20 16:25:21,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:21,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 120 [2020-07-20 16:25:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:21,824 INFO L225 Difference]: With dead ends: 1337 [2020-07-20 16:25:21,825 INFO L226 Difference]: Without dead ends: 882 [2020-07-20 16:25:21,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:21,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 882 states. [2020-07-20 16:25:21,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 882 to 846. [2020-07-20 16:25:21,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 846 states. [2020-07-20 16:25:21,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 846 states to 846 states and 1061 transitions. [2020-07-20 16:25:21,891 INFO L78 Accepts]: Start accepts. Automaton has 846 states and 1061 transitions. Word has length 120 [2020-07-20 16:25:21,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:21,892 INFO L479 AbstractCegarLoop]: Abstraction has 846 states and 1061 transitions. [2020-07-20 16:25:21,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:21,892 INFO L276 IsEmpty]: Start isEmpty. Operand 846 states and 1061 transitions. [2020-07-20 16:25:21,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-20 16:25:21,900 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:21,900 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:22,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:22,114 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:22,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:22,115 INFO L82 PathProgramCache]: Analyzing trace with hash 1669815586, now seen corresponding path program 1 times [2020-07-20 16:25:22,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:22,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [183016364] [2020-07-20 16:25:22,116 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:22,554 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:22,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:22,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 16:25:22,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:22,577 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 16:25:22,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:22,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [183016364] [2020-07-20 16:25:22,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:22,578 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:22,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863338275] [2020-07-20 16:25:22,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:22,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:22,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:22,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:22,580 INFO L87 Difference]: Start difference. First operand 846 states and 1061 transitions. Second operand 3 states. [2020-07-20 16:25:22,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:22,704 INFO L93 Difference]: Finished difference Result 1078 states and 1352 transitions. [2020-07-20 16:25:22,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:22,704 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-20 16:25:22,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:22,710 INFO L225 Difference]: With dead ends: 1078 [2020-07-20 16:25:22,710 INFO L226 Difference]: Without dead ends: 499 [2020-07-20 16:25:22,713 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499 states. [2020-07-20 16:25:22,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499 to 443. [2020-07-20 16:25:22,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 443 states. [2020-07-20 16:25:22,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 443 states to 443 states and 543 transitions. [2020-07-20 16:25:22,749 INFO L78 Accepts]: Start accepts. Automaton has 443 states and 543 transitions. Word has length 126 [2020-07-20 16:25:22,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:22,749 INFO L479 AbstractCegarLoop]: Abstraction has 443 states and 543 transitions. [2020-07-20 16:25:22,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:22,750 INFO L276 IsEmpty]: Start isEmpty. Operand 443 states and 543 transitions. [2020-07-20 16:25:22,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 16:25:22,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:22,774 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:22,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:22,986 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:22,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:22,987 INFO L82 PathProgramCache]: Analyzing trace with hash 315789474, now seen corresponding path program 1 times [2020-07-20 16:25:22,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:22,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [665608791] [2020-07-20 16:25:22,989 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:23,506 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:23,507 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:23,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:23,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:23,589 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:23,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:25:23,922 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:25:23,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [665608791] [2020-07-20 16:25:23,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:25:23,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 16:25:23,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219150523] [2020-07-20 16:25:23,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 16:25:23,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:23,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 16:25:23,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 16:25:23,925 INFO L87 Difference]: Start difference. First operand 443 states and 543 transitions. Second operand 12 states. [2020-07-20 16:25:25,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:25,339 INFO L93 Difference]: Finished difference Result 1219 states and 1630 transitions. [2020-07-20 16:25:25,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 16:25:25,340 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 128 [2020-07-20 16:25:25,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:25,346 INFO L225 Difference]: With dead ends: 1219 [2020-07-20 16:25:25,346 INFO L226 Difference]: Without dead ends: 688 [2020-07-20 16:25:25,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 244 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 16:25:25,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-07-20 16:25:25,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 545. [2020-07-20 16:25:25,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 545 states. [2020-07-20 16:25:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 669 transitions. [2020-07-20 16:25:25,388 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 669 transitions. Word has length 128 [2020-07-20 16:25:25,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:25,389 INFO L479 AbstractCegarLoop]: Abstraction has 545 states and 669 transitions. [2020-07-20 16:25:25,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 16:25:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 669 transitions. [2020-07-20 16:25:25,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-20 16:25:25,393 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:25,393 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:25,607 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:25,608 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:25,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:25,609 INFO L82 PathProgramCache]: Analyzing trace with hash 1874994186, now seen corresponding path program 2 times [2020-07-20 16:25:25,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:25,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [306362645] [2020-07-20 16:25:25,610 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,074 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:26,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:25:26,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:25:26,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:25:26,198 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:25:26,522 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:25:26,523 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:25:26,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:25:26 BoogieIcfgContainer [2020-07-20 16:25:26,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:25:26,953 INFO L168 Benchmark]: Toolchain (without parser) took 13673.55 ms. Allocated memory was 138.9 MB in the beginning and 347.1 MB in the end (delta: 208.1 MB). Free memory was 102.2 MB in the beginning and 238.0 MB in the end (delta: -135.7 MB). Peak memory consumption was 223.9 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:26,954 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 16:25:26,959 INFO L168 Benchmark]: CACSL2BoogieTranslator took 622.18 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 171.5 MB in the end (delta: -69.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:26,960 INFO L168 Benchmark]: Boogie Preprocessor took 115.83 ms. Allocated memory is still 203.4 MB. Free memory was 171.5 MB in the beginning and 167.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:26,964 INFO L168 Benchmark]: RCFGBuilder took 1095.46 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.4 MB in the beginning and 197.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:26,965 INFO L168 Benchmark]: TraceAbstraction took 11833.81 ms. Allocated memory was 236.5 MB in the beginning and 347.1 MB in the end (delta: 110.6 MB). Free memory was 197.3 MB in the beginning and 238.0 MB in the end (delta: -40.7 MB). Peak memory consumption was 221.5 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:26,972 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 622.18 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 101.8 MB in the beginning and 171.5 MB in the end (delta: -69.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.83 ms. Allocated memory is still 203.4 MB. Free memory was 171.5 MB in the beginning and 167.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1095.46 ms. Allocated memory was 203.4 MB in the beginning and 236.5 MB in the end (delta: 33.0 MB). Free memory was 167.4 MB in the beginning and 197.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11833.81 ms. Allocated memory was 236.5 MB in the beginning and 347.1 MB in the end (delta: 110.6 MB). Free memory was 197.3 MB in the beginning and 238.0 MB in the end (delta: -40.7 MB). Peak memory consumption was 221.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 310]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L315] int cleanupTimeShifts = 4; [L415] int waterLevel = 1; [L416] int methaneLevelCritical = 0; [L713] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=63, \old(head)=64, \old(head)=35, \old(methaneLevelCritical)=98, \old(pumpRunning)=57, \old(systemActive)=96, \old(waterLevel)=65, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L391] int retValue_acc ; [L392] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L396] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L397] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L398] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L535] int retValue_acc ; [L538] retValue_acc = 1 [L539] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L398] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L398] tmp = valid_product() [L400] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L402] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L403] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L382] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L67] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L433] COND TRUE waterLevel < 2 [L434] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L67] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L128] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L135] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L137] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L160] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L272] int retValue_acc ; [L273] int tmp ; [L274] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L495] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L498] COND FALSE !(waterLevel < 2) [L502] retValue_acc = 0 [L503] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L278] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L278] tmp = isHighWaterSensorDry() [L280] COND FALSE !(\read(tmp)) [L283] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L285] retValue_acc = tmp___0 [L286] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L162] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L162] tmp = isHighWaterLevel() [L164] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L166] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L191] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L216] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L454] int retValue_acc ; [L457] retValue_acc = methaneLevelCritical [L458] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L220] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L220] retValue_acc = isMethaneLevelCritical() [L222] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L195] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] tmp = isMethaneAlarm() [L197] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L201] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L185] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L201] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L166] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L137] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L143] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L911] int tmp ; [L912] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L143] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L100] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=-1, waterLevel=2] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L128] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L130] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L130] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L135] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L137] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L160] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L175] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L137] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L143] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L911] int tmp ; [L912] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L916] tmp = getWaterLevel() [L918] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L143] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L100] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L55] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L57] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L63] tmp = __VERIFIER_nondet_int() [L65] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=1] [L100] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L128] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L130] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L421] COND TRUE waterLevel > 0 [L422] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L130] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L135] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L137] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L157] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L160] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L175] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L137] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L143] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L911] int tmp ; [L912] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L916] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L486] int retValue_acc ; [L489] retValue_acc = waterLevel [L490] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L916] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L916] tmp = getWaterLevel() [L918] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L920] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L227] int retValue_acc ; [L230] retValue_acc = pumpRunning [L231] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L920] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L920] tmp___0 = isPumpRunning() [L922] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L924] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L310] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 228 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.5s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1572 SDtfs, 954 SDslu, 2337 SDs, 0 SdLazy, 1428 SolverSat, 479 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1060 GetRequests, 1010 SyntacticMatches, 6 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=846occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 258 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.0s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1084 NumberOfCodeBlocks, 846 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 1038 ConstructedInterpolants, 0 QuantifiedInterpolants, 198130 SizeOfPredicates, 32 NumberOfNonLiveVariables, 6815 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 130/143 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...