/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:42:13,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:42:13,153 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:42:13,165 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:42:13,166 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:42:13,167 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:42:13,168 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:42:13,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:42:13,172 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:42:13,173 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:42:13,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:42:13,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:42:13,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:42:13,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:42:13,177 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:42:13,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:42:13,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:42:13,182 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:42:13,184 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:42:13,186 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:42:13,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:42:13,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:42:13,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:42:13,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:42:13,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:42:13,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:42:13,193 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:42:13,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:42:13,195 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:42:13,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:42:13,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:42:13,196 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:42:13,197 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:42:13,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:42:13,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:42:13,199 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:42:13,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:42:13,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:42:13,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:42:13,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:42:13,202 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:42:13,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:42:13,217 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:42:13,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:42:13,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:42:13,219 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:42:13,219 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:42:13,219 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:42:13,220 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:42:13,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:42:13,220 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:42:13,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:42:13,220 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:42:13,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:42:13,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:42:13,221 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:42:13,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:42:13,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:42:13,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:42:13,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:42:13,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:42:13,222 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:42:13,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:42:13,223 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:42:13,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:42:13,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:42:13,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:42:13,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:42:13,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:13,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:42:13,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:42:13,224 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:42:13,515 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:42:13,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:42:13,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:42:13,533 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:42:13,533 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:42:13,534 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-07-21 15:42:13,591 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed429990/2368e39f6560442883c09b5336eb2ff4/FLAG9964b8095 [2020-07-21 15:42:14,110 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:42:14,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-07-21 15:42:14,126 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed429990/2368e39f6560442883c09b5336eb2ff4/FLAG9964b8095 [2020-07-21 15:42:14,436 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed429990/2368e39f6560442883c09b5336eb2ff4 [2020-07-21 15:42:14,445 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:42:14,448 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:42:14,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:42:14,449 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:42:14,452 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:42:14,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:14" (1/1) ... [2020-07-21 15:42:14,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c9b21e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:14, skipping insertion in model container [2020-07-21 15:42:14,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:14" (1/1) ... [2020-07-21 15:42:14,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:42:14,527 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:42:14,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:42:15,027 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:42:15,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:42:15,213 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:42:15,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15 WrapperNode [2020-07-21 15:42:15,214 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:42:15,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:42:15,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:42:15,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:42:15,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,251 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... [2020-07-21 15:42:15,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:42:15,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:42:15,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:42:15,305 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:42:15,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:42:15,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:42:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:42:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:42:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:42:15,391 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:42:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:42:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:42:15,392 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:42:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:42:15,393 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:42:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:42:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:42:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:42:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:42:15,394 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:42:15,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:42:15,395 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:42:15,395 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:42:15,396 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:42:15,396 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:42:15,396 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:42:15,396 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:42:15,396 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:42:15,396 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:42:15,397 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:42:15,398 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:42:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:42:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:42:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:42:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:42:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:42:15,399 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 15:42:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:42:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:42:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:42:15,400 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:42:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:42:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:42:15,401 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:42:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:42:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:42:15,402 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:42:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:42:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:42:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:42:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:42:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:42:15,403 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:42:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:42:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:42:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:42:15,404 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:42:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 15:42:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:42:15,405 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:42:15,406 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:42:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:42:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:42:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:42:15,407 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:42:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:42:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:42:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:42:15,408 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:42:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:42:15,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:42:15,410 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:42:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:42:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:42:15,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:42:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:42:15,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:42:16,650 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:42:16,650 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:42:16,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:16 BoogieIcfgContainer [2020-07-21 15:42:16,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:42:16,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:42:16,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:42:16,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:42:16,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:42:14" (1/3) ... [2020-07-21 15:42:16,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37874428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:16, skipping insertion in model container [2020-07-21 15:42:16,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:15" (2/3) ... [2020-07-21 15:42:16,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37874428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:16, skipping insertion in model container [2020-07-21 15:42:16,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:16" (3/3) ... [2020-07-21 15:42:16,663 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-07-21 15:42:16,673 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:42:16,681 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:42:16,694 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:42:16,716 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:42:16,717 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:42:16,717 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:42:16,717 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:42:16,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:42:16,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:42:16,718 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:42:16,718 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:42:16,739 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-21 15:42:16,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 15:42:16,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:16,749 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] [2020-07-21 15:42:16,750 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:16,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:16,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1144967718, now seen corresponding path program 1 times [2020-07-21 15:42:16,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:16,764 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980225259] [2020-07-21 15:42:16,764 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:17,217 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:17,218 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:17,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:42:17,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:17,262 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:17,264 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980225259] [2020-07-21 15:42:17,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:17,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:42:17,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832749140] [2020-07-21 15:42:17,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:42:17,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:17,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:42:17,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:42:17,291 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 2 states. [2020-07-21 15:42:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:17,342 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2020-07-21 15:42:17,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:42:17,345 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 15:42:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:17,372 INFO L225 Difference]: With dead ends: 252 [2020-07-21 15:42:17,372 INFO L226 Difference]: Without dead ends: 126 [2020-07-21 15:42:17,379 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 [2020-07-21 15:42:17,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-21 15:42:17,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-21 15:42:17,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-21 15:42:17,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-07-21 15:42:17,478 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2020-07-21 15:42:17,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:17,478 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-07-21 15:42:17,479 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:42:17,479 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-07-21 15:42:17,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 15:42:17,488 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:17,488 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] [2020-07-21 15:42:17,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:17,691 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:17,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:17,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1860542733, now seen corresponding path program 1 times [2020-07-21 15:42:17,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:17,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1195108165] [2020-07-21 15:42:17,694 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:18,030 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:18,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:18,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:42:18,040 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:18,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:18,090 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:18,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1195108165] [2020-07-21 15:42:18,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:18,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:18,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050955871] [2020-07-21 15:42:18,095 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:18,096 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:18,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:18,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:18,099 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 3 states. [2020-07-21 15:42:18,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:18,139 INFO L93 Difference]: Finished difference Result 228 states and 273 transitions. [2020-07-21 15:42:18,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:18,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 15:42:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:18,142 INFO L225 Difference]: With dead ends: 228 [2020-07-21 15:42:18,142 INFO L226 Difference]: Without dead ends: 126 [2020-07-21 15:42:18,144 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 [2020-07-21 15:42:18,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2020-07-21 15:42:18,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2020-07-21 15:42:18,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-21 15:42:18,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 146 transitions. [2020-07-21 15:42:18,159 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 146 transitions. Word has length 47 [2020-07-21 15:42:18,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:18,160 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 146 transitions. [2020-07-21 15:42:18,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:18,160 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 146 transitions. [2020-07-21 15:42:18,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 15:42:18,163 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:18,163 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:18,377 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:18,378 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:18,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:18,379 INFO L82 PathProgramCache]: Analyzing trace with hash 1699182139, now seen corresponding path program 1 times [2020-07-21 15:42:18,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:18,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1829168718] [2020-07-21 15:42:18,381 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:18,719 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:18,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:18,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:42:18,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:18,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:18,790 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:18,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1829168718] [2020-07-21 15:42:18,791 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:18,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:18,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908321294] [2020-07-21 15:42:18,792 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:18,792 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:18,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:18,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:18,793 INFO L87 Difference]: Start difference. First operand 126 states and 146 transitions. Second operand 6 states. [2020-07-21 15:42:19,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:19,080 INFO L93 Difference]: Finished difference Result 319 states and 400 transitions. [2020-07-21 15:42:19,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:19,080 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-21 15:42:19,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:19,087 INFO L225 Difference]: With dead ends: 319 [2020-07-21 15:42:19,088 INFO L226 Difference]: Without dead ends: 217 [2020-07-21 15:42:19,090 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:42:19,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-21 15:42:19,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 217. [2020-07-21 15:42:19,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-21 15:42:19,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 268 transitions. [2020-07-21 15:42:19,143 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 268 transitions. Word has length 64 [2020-07-21 15:42:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:19,145 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 268 transitions. [2020-07-21 15:42:19,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:19,145 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 268 transitions. [2020-07-21 15:42:19,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 15:42:19,155 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:19,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:19,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:19,371 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:19,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:19,371 INFO L82 PathProgramCache]: Analyzing trace with hash -1882613458, now seen corresponding path program 1 times [2020-07-21 15:42:19,372 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:19,372 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166760859] [2020-07-21 15:42:19,372 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:19,659 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:19,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:19,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 670 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:42:19,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:19,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:19,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:19,680 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166760859] [2020-07-21 15:42:19,681 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:19,681 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:19,681 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539636562] [2020-07-21 15:42:19,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:19,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:19,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:19,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:19,682 INFO L87 Difference]: Start difference. First operand 217 states and 268 transitions. Second operand 3 states. [2020-07-21 15:42:19,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:19,697 INFO L93 Difference]: Finished difference Result 356 states and 431 transitions. [2020-07-21 15:42:19,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:19,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-07-21 15:42:19,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:19,700 INFO L225 Difference]: With dead ends: 356 [2020-07-21 15:42:19,701 INFO L226 Difference]: Without dead ends: 199 [2020-07-21 15:42:19,702 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:19,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2020-07-21 15:42:19,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2020-07-21 15:42:19,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199 states. [2020-07-21 15:42:19,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 240 transitions. [2020-07-21 15:42:19,718 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 240 transitions. Word has length 64 [2020-07-21 15:42:19,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:19,719 INFO L479 AbstractCegarLoop]: Abstraction has 199 states and 240 transitions. [2020-07-21 15:42:19,719 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:19,719 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 240 transitions. [2020-07-21 15:42:19,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-21 15:42:19,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:19,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:19,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:19,936 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:19,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:19,936 INFO L82 PathProgramCache]: Analyzing trace with hash -724254731, now seen corresponding path program 1 times [2020-07-21 15:42:19,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:19,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815805622] [2020-07-21 15:42:19,937 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:20,372 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:20,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:20,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 15:42:20,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:20,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:20,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:20,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815805622] [2020-07-21 15:42:20,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:20,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:20,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831697561] [2020-07-21 15:42:20,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:20,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:20,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:20,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:20,433 INFO L87 Difference]: Start difference. First operand 199 states and 240 transitions. Second operand 6 states. [2020-07-21 15:42:21,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:21,415 INFO L93 Difference]: Finished difference Result 468 states and 595 transitions. [2020-07-21 15:42:21,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:42:21,418 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 68 [2020-07-21 15:42:21,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:21,421 INFO L225 Difference]: With dead ends: 468 [2020-07-21 15:42:21,421 INFO L226 Difference]: Without dead ends: 293 [2020-07-21 15:42:21,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:42:21,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-07-21 15:42:21,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 278. [2020-07-21 15:42:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 15:42:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 328 transitions. [2020-07-21 15:42:21,446 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 328 transitions. Word has length 68 [2020-07-21 15:42:21,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:21,447 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 328 transitions. [2020-07-21 15:42:21,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:21,447 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 328 transitions. [2020-07-21 15:42:21,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 15:42:21,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:21,449 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:21,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:21,665 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:21,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:21,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1074748620, now seen corresponding path program 1 times [2020-07-21 15:42:21,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:21,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [254860513] [2020-07-21 15:42:21,668 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:22,055 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:22,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:22,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:22,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:22,128 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 15:42:22,128 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:22,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [254860513] [2020-07-21 15:42:22,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:22,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:22,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024181431] [2020-07-21 15:42:22,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:22,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:22,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:22,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:22,132 INFO L87 Difference]: Start difference. First operand 278 states and 328 transitions. Second operand 6 states. [2020-07-21 15:42:22,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:22,422 INFO L93 Difference]: Finished difference Result 285 states and 336 transitions. [2020-07-21 15:42:22,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:42:22,427 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-07-21 15:42:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:22,430 INFO L225 Difference]: With dead ends: 285 [2020-07-21 15:42:22,434 INFO L226 Difference]: Without dead ends: 282 [2020-07-21 15:42:22,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:42:22,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-07-21 15:42:22,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 278. [2020-07-21 15:42:22,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 15:42:22,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 327 transitions. [2020-07-21 15:42:22,469 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 327 transitions. Word has length 126 [2020-07-21 15:42:22,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:22,470 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 327 transitions. [2020-07-21 15:42:22,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:22,470 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 327 transitions. [2020-07-21 15:42:22,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 15:42:22,477 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:22,477 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:22,688 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:22,689 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:22,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:22,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1533387507, now seen corresponding path program 1 times [2020-07-21 15:42:22,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:22,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [758503219] [2020-07-21 15:42:22,691 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:23,148 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:23,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:23,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 823 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:23,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:23,225 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 15:42:23,225 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:23,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [758503219] [2020-07-21 15:42:23,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:23,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:23,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118077644] [2020-07-21 15:42:23,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:23,228 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:23,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:23,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:23,228 INFO L87 Difference]: Start difference. First operand 278 states and 327 transitions. Second operand 6 states. [2020-07-21 15:42:23,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:23,304 INFO L93 Difference]: Finished difference Result 542 states and 652 transitions. [2020-07-21 15:42:23,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:23,305 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2020-07-21 15:42:23,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:23,311 INFO L225 Difference]: With dead ends: 542 [2020-07-21 15:42:23,311 INFO L226 Difference]: Without dead ends: 288 [2020-07-21 15:42:23,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:42:23,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-07-21 15:42:23,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2020-07-21 15:42:23,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-07-21 15:42:23,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 338 transitions. [2020-07-21 15:42:23,356 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 338 transitions. Word has length 130 [2020-07-21 15:42:23,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:23,357 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 338 transitions. [2020-07-21 15:42:23,357 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:23,357 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 338 transitions. [2020-07-21 15:42:23,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 15:42:23,362 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:23,362 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:23,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:23,576 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:23,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:23,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1703741711, now seen corresponding path program 1 times [2020-07-21 15:42:23,578 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:23,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [260931080] [2020-07-21 15:42:23,579 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:23,927 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:23,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:23,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:42:23,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:23,977 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 15:42:23,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:23,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [260931080] [2020-07-21 15:42:23,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:23,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:42:23,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681632483] [2020-07-21 15:42:23,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:42:23,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:23,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:42:23,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:42:23,979 INFO L87 Difference]: Start difference. First operand 288 states and 338 transitions. Second operand 5 states. [2020-07-21 15:42:24,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:24,014 INFO L93 Difference]: Finished difference Result 543 states and 656 transitions. [2020-07-21 15:42:24,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:42:24,015 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 130 [2020-07-21 15:42:24,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:24,018 INFO L225 Difference]: With dead ends: 543 [2020-07-21 15:42:24,018 INFO L226 Difference]: Without dead ends: 279 [2020-07-21 15:42:24,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:42:24,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-07-21 15:42:24,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279. [2020-07-21 15:42:24,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-07-21 15:42:24,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 326 transitions. [2020-07-21 15:42:24,038 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 326 transitions. Word has length 130 [2020-07-21 15:42:24,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:24,039 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 326 transitions. [2020-07-21 15:42:24,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:42:24,039 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 326 transitions. [2020-07-21 15:42:24,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-21 15:42:24,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:24,042 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:24,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:24,256 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash 494499472, now seen corresponding path program 1 times [2020-07-21 15:42:24,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:24,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786354459] [2020-07-21 15:42:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:24,617 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:24,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:24,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:42:24,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:24,689 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:24,690 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:24,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786354459] [2020-07-21 15:42:24,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:24,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:24,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306842813] [2020-07-21 15:42:24,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:24,691 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:24,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:24,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:24,691 INFO L87 Difference]: Start difference. First operand 279 states and 326 transitions. Second operand 6 states. [2020-07-21 15:42:25,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:25,842 INFO L93 Difference]: Finished difference Result 741 states and 926 transitions. [2020-07-21 15:42:25,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:42:25,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 130 [2020-07-21 15:42:25,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:25,847 INFO L225 Difference]: With dead ends: 741 [2020-07-21 15:42:25,847 INFO L226 Difference]: Without dead ends: 486 [2020-07-21 15:42:25,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:42:25,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2020-07-21 15:42:25,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 471. [2020-07-21 15:42:25,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 471 states. [2020-07-21 15:42:25,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 564 transitions. [2020-07-21 15:42:25,889 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 564 transitions. Word has length 130 [2020-07-21 15:42:25,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:25,890 INFO L479 AbstractCegarLoop]: Abstraction has 471 states and 564 transitions. [2020-07-21 15:42:25,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:25,890 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 564 transitions. [2020-07-21 15:42:25,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 15:42:25,892 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:25,892 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:26,107 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:26,108 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:26,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:26,109 INFO L82 PathProgramCache]: Analyzing trace with hash -355706806, now seen corresponding path program 1 times [2020-07-21 15:42:26,109 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:26,110 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1745729946] [2020-07-21 15:42:26,110 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:26,593 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:26,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:26,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:26,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:26,726 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:42:27,377 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 15:42:27,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1745729946] [2020-07-21 15:42:27,378 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:42:27,378 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 15:42:27,378 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600746223] [2020-07-21 15:42:27,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 15:42:27,379 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:27,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 15:42:27,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:42:27,380 INFO L87 Difference]: Start difference. First operand 471 states and 564 transitions. Second operand 12 states. [2020-07-21 15:42:29,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:29,933 INFO L93 Difference]: Finished difference Result 1228 states and 1583 transitions. [2020-07-21 15:42:29,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 15:42:29,935 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 134 [2020-07-21 15:42:29,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:29,947 INFO L225 Difference]: With dead ends: 1228 [2020-07-21 15:42:29,948 INFO L226 Difference]: Without dead ends: 781 [2020-07-21 15:42:29,951 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 256 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 15:42:29,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-07-21 15:42:30,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 624. [2020-07-21 15:42:30,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 624 states. [2020-07-21 15:42:30,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 624 states to 624 states and 738 transitions. [2020-07-21 15:42:30,013 INFO L78 Accepts]: Start accepts. Automaton has 624 states and 738 transitions. Word has length 134 [2020-07-21 15:42:30,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:30,014 INFO L479 AbstractCegarLoop]: Abstraction has 624 states and 738 transitions. [2020-07-21 15:42:30,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 15:42:30,014 INFO L276 IsEmpty]: Start isEmpty. Operand 624 states and 738 transitions. [2020-07-21 15:42:30,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 15:42:30,018 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:30,019 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:30,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:30,234 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:30,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:30,235 INFO L82 PathProgramCache]: Analyzing trace with hash -775865217, now seen corresponding path program 2 times [2020-07-21 15:42:30,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:30,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383948771] [2020-07-21 15:42:30,235 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:30,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:30,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 15:42:30,812 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:42:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 15:42:30,998 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:42:31,298 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 15:42:31,298 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 15:42:31,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:31,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:42:31 BoogieIcfgContainer [2020-07-21 15:42:31,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:42:31,715 INFO L168 Benchmark]: Toolchain (without parser) took 17267.40 ms. Allocated memory was 138.4 MB in the beginning and 320.9 MB in the end (delta: 182.5 MB). Free memory was 102.3 MB in the beginning and 162.6 MB in the end (delta: -60.3 MB). Peak memory consumption was 122.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:31,716 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:42:31,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 765.76 ms. Allocated memory was 138.4 MB in the beginning and 207.1 MB in the end (delta: 68.7 MB). Free memory was 101.9 MB in the beginning and 176.6 MB in the end (delta: -74.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:31,718 INFO L168 Benchmark]: Boogie Preprocessor took 89.77 ms. Allocated memory is still 207.1 MB. Free memory was 176.6 MB in the beginning and 172.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:31,719 INFO L168 Benchmark]: RCFGBuilder took 1350.53 ms. Allocated memory was 207.1 MB in the beginning and 232.8 MB in the end (delta: 25.7 MB). Free memory was 172.4 MB in the beginning and 196.9 MB in the end (delta: -24.4 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:31,719 INFO L168 Benchmark]: TraceAbstraction took 15055.95 ms. Allocated memory was 232.8 MB in the beginning and 320.9 MB in the end (delta: 88.1 MB). Free memory was 196.9 MB in the beginning and 162.6 MB in the end (delta: 34.3 MB). Peak memory consumption was 122.3 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:31,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 765.76 ms. Allocated memory was 138.4 MB in the beginning and 207.1 MB in the end (delta: 68.7 MB). Free memory was 101.9 MB in the beginning and 176.6 MB in the end (delta: -74.7 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.77 ms. Allocated memory is still 207.1 MB. Free memory was 176.6 MB in the beginning and 172.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1350.53 ms. Allocated memory was 207.1 MB in the beginning and 232.8 MB in the end (delta: 25.7 MB). Free memory was 172.4 MB in the beginning and 196.9 MB in the end (delta: -24.4 MB). Peak memory consumption was 84.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15055.95 ms. Allocated memory was 232.8 MB in the beginning and 320.9 MB in the end (delta: 88.1 MB). Free memory was 196.9 MB in the beginning and 162.6 MB in the end (delta: 34.3 MB). Peak memory consumption was 122.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 434]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L155] int pumpRunning = 0; [L156] int systemActive = 1; [L334] int cleanupTimeShifts = 4; [L440] int waterLevel = 1; [L441] int methaneLevelCritical = 0; [L703] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=66, \old(head)=31, \old(head)=27, \old(methaneLevelCritical)=86, \old(pumpRunning)=38, \old(systemActive)=94, \old(waterLevel)=33, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L407] int retValue_acc ; [L408] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L414] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L414] tmp = valid_product() [L416] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L418] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L419] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L401] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L83] int splverifierCounter ; [L84] int tmp ; [L85] int tmp___0 ; [L86] int tmp___1 ; [L87] int tmp___2 ; [L90] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L92] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L94] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L100] tmp = __VERIFIER_nondet_int() [L102] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L104] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L458] COND TRUE waterLevel < 2 [L459] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L104] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L135] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L163] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L170] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L218] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L221] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L236] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L192] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L195] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L315] int retValue_acc ; [L316] int tmp ; [L317] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L520] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L523] COND FALSE !(waterLevel < 2) [L527] retValue_acc = 0 [L528] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L321] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L321] tmp = isHighWaterSensorDry() [L323] COND FALSE !(\read(tmp)) [L326] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L328] retValue_acc = tmp___0 [L329] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L197] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L197] tmp = isHighWaterLevel() [L199] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L201] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L246] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L201] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L236] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L172] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L178] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L901] int tmp ; [L902] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L906] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L178] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L135] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L92] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L94] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L100] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L135] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L163] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L165] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L170] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L172] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L218] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L221] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L263] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L263] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L223] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L231] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L192] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L195] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L210] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L231] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L172] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L178] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L901] int tmp ; [L902] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L906] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L906] tmp = getWaterLevel() [L908] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L178] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L135] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L92] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L94] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] tmp = __VERIFIER_nondet_int() [L102] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L110] tmp___0 = __VERIFIER_nondet_int() [L112] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L120] tmp___2 = __VERIFIER_nondet_int() [L122] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \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] [L135] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L163] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L165] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L446] COND TRUE waterLevel > 0 [L447] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L165] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L170] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L172] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L218] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L221] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L223] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L263] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L479] int retValue_acc ; [L482] retValue_acc = methaneLevelCritical [L483] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L263] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L263] retValue_acc = isMethaneLevelCritical() [L265] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L223] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L223] tmp = isMethaneAlarm() [L225] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L231] CALL processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L192] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L195] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L210] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L231] RET processEnvironment__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L172] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L178] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L901] int tmp ; [L902] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L511] int retValue_acc ; [L514] retValue_acc = waterLevel [L515] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L906] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L906] tmp = getWaterLevel() [L908] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L910] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L270] int retValue_acc ; [L273] retValue_acc = pumpRunning [L274] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L910] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L910] tmp___0 = isPumpRunning() [L912] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L914] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L434] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 225 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 14.7s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 5.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1517 SDtfs, 1056 SDslu, 2638 SDs, 0 SdLazy, 1907 SolverSat, 446 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1089 GetRequests, 1030 SyntacticMatches, 6 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=624occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 191 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 1124 NumberOfCodeBlocks, 994 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1062 ConstructedInterpolants, 0 QuantifiedInterpolants, 190669 SizeOfPredicates, 28 NumberOfNonLiveVariables, 7177 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 147/164 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...