/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -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 0.1.25-79ed534 [2020-07-19 22:53:01,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 22:53:01,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 22:53:01,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 22:53:01,421 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 22:53:01,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 22:53:01,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 22:53:01,425 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 22:53:01,427 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 22:53:01,427 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 22:53:01,428 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 22:53:01,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 22:53:01,430 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 22:53:01,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 22:53:01,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 22:53:01,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 22:53:01,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 22:53:01,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 22:53:01,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 22:53:01,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 22:53:01,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 22:53:01,440 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 22:53:01,441 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 22:53:01,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 22:53:01,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 22:53:01,444 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 22:53:01,444 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 22:53:01,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 22:53:01,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 22:53:01,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 22:53:01,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 22:53:01,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 22:53:01,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 22:53:01,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 22:53:01,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 22:53:01,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 22:53:01,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 22:53:01,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 22:53:01,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 22:53:01,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 22:53:01,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 22:53:01,453 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 [2020-07-19 22:53:01,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 22:53:01,473 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 22:53:01,474 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 22:53:01,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 22:53:01,475 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 22:53:01,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 22:53:01,475 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 22:53:01,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 22:53:01,476 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 22:53:01,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 22:53:01,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 22:53:01,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 22:53:01,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 22:53:01,477 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 22:53:01,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 22:53:01,478 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 22:53:01,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 22:53:01,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 22:53:01,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 22:53:01,478 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 22:53:01,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 22:53:01,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 22:53:01,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 22:53:01,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 22:53:01,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 22:53:01,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 22:53:01,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 22:53:01,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 22:53:01,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 22:53:01,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 22:53:01,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 22:53:01,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 22:53:01,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 22:53:01,806 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 22:53:01,806 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 22:53:01,806 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-07-19 22:53:01,863 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22332f5d5/bc74936d932040aaa3c44675e3a09928/FLAG2a2eb6c4c [2020-07-19 22:53:02,375 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 22:53:02,375 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product37.cil.c [2020-07-19 22:53:02,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22332f5d5/bc74936d932040aaa3c44675e3a09928/FLAG2a2eb6c4c [2020-07-19 22:53:02,705 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/22332f5d5/bc74936d932040aaa3c44675e3a09928 [2020-07-19 22:53:02,715 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 22:53:02,718 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 22:53:02,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 22:53:02,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 22:53:02,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 22:53:02,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:53:02" (1/1) ... [2020-07-19 22:53:02,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e98d2fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:02, skipping insertion in model container [2020-07-19 22:53:02,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 10:53:02" (1/1) ... [2020-07-19 22:53:02,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 22:53:02,780 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 22:53:03,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:53:03,289 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 22:53:03,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 22:53:03,403 INFO L208 MainTranslator]: Completed translation [2020-07-19 22:53:03,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03 WrapperNode [2020-07-19 22:53:03,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 22:53:03,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 22:53:03,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 22:53:03,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 22:53:03,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,414 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,432 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,433 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,479 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (1/1) ... [2020-07-19 22:53:03,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 22:53:03,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 22:53:03,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 22:53:03,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 22:53:03,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (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 [2020-07-19 22:53:03,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 22:53:03,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 22:53:03,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 22:53:03,551 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 22:53:03,551 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 22:53:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 22:53:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 22:53:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 22:53:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 22:53:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-19 22:53:03,552 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:53:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 22:53:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 22:53:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 22:53:03,553 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 22:53:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 22:53:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 22:53:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-19 22:53:03,554 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 22:53:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 22:53:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 22:53:03,555 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 22:53:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 22:53:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 22:53:03,556 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 22:53:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 22:53:03,558 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 22:53:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 22:53:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 22:53:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 22:53:03,559 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-19 22:53:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 22:53:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 22:53:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 22:53:03,560 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 22:53:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 22:53:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 22:53:03,561 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-19 22:53:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 22:53:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 22:53:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 22:53:03,561 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 22:53:03,562 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 22:53:03,563 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 22:53:03,564 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 22:53:03,565 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 22:53:03,566 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 22:53:03,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 22:53:03,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 22:53:04,542 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 22:53:04,543 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 22:53:04,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:04 BoogieIcfgContainer [2020-07-19 22:53:04,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 22:53:04,549 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 22:53:04,549 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 22:53:04,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 22:53:04,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 10:53:02" (1/3) ... [2020-07-19 22:53:04,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0a1acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:53:04, skipping insertion in model container [2020-07-19 22:53:04,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 10:53:03" (2/3) ... [2020-07-19 22:53:04,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0a1acc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 10:53:04, skipping insertion in model container [2020-07-19 22:53:04,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 10:53:04" (3/3) ... [2020-07-19 22:53:04,555 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product37.cil.c [2020-07-19 22:53:04,566 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 22:53:04,573 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 22:53:04,587 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 22:53:04,614 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 22:53:04,614 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 22:53:04,614 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 22:53:04,614 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 22:53:04,615 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 22:53:04,615 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 22:53:04,615 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 22:53:04,615 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 22:53:04,635 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states. [2020-07-19 22:53:04,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-19 22:53:04,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:04,646 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] [2020-07-19 22:53:04,646 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:04,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:04,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1144967718, now seen corresponding path program 1 times [2020-07-19 22:53:04,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:04,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694704987] [2020-07-19 22:53:04,662 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:04,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,396 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:05,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:05,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694704987] [2020-07-19 22:53:05,525 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:05,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 22:53:05,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363378746] [2020-07-19 22:53:05,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 22:53:05,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:05,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 22:53:05,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:53:05,548 INFO L87 Difference]: Start difference. First operand 169 states. Second operand 3 states. [2020-07-19 22:53:06,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:06,611 INFO L93 Difference]: Finished difference Result 293 states and 382 transitions. [2020-07-19 22:53:06,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 22:53:06,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-19 22:53:06,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:06,627 INFO L225 Difference]: With dead ends: 293 [2020-07-19 22:53:06,627 INFO L226 Difference]: Without dead ends: 158 [2020-07-19 22:53:06,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 22:53:06,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-19 22:53:06,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 126. [2020-07-19 22:53:06,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2020-07-19 22:53:06,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 147 transitions. [2020-07-19 22:53:06,714 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 147 transitions. Word has length 46 [2020-07-19 22:53:06,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:06,715 INFO L479 AbstractCegarLoop]: Abstraction has 126 states and 147 transitions. [2020-07-19 22:53:06,715 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 22:53:06,715 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 147 transitions. [2020-07-19 22:53:06,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-19 22:53:06,718 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:06,718 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] [2020-07-19 22:53:06,719 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 22:53:06,719 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:06,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:06,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1860542733, now seen corresponding path program 1 times [2020-07-19 22:53:06,720 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:06,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689917578] [2020-07-19 22:53:06,720 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,093 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:07,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:07,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:07,132 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689917578] [2020-07-19 22:53:07,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:07,132 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 22:53:07,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722791626] [2020-07-19 22:53:07,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 22:53:07,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:07,135 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 22:53:07,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 22:53:07,135 INFO L87 Difference]: Start difference. First operand 126 states and 147 transitions. Second operand 4 states. [2020-07-19 22:53:07,519 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:08,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:08,272 INFO L93 Difference]: Finished difference Result 226 states and 273 transitions. [2020-07-19 22:53:08,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:53:08,273 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-19 22:53:08,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:08,276 INFO L225 Difference]: With dead ends: 226 [2020-07-19 22:53:08,276 INFO L226 Difference]: Without dead ends: 142 [2020-07-19 22:53:08,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-19 22:53:08,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-07-19 22:53:08,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 117. [2020-07-19 22:53:08,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-19 22:53:08,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 135 transitions. [2020-07-19 22:53:08,315 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 135 transitions. Word has length 47 [2020-07-19 22:53:08,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:08,316 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 135 transitions. [2020-07-19 22:53:08,316 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 22:53:08,316 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 135 transitions. [2020-07-19 22:53:08,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-19 22:53:08,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:08,318 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:08,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 22:53:08,319 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:08,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:08,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1943742618, now seen corresponding path program 1 times [2020-07-19 22:53:08,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:08,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803981278] [2020-07-19 22:53:08,320 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:08,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,631 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:08,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:08,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803981278] [2020-07-19 22:53:08,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:08,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 22:53:08,726 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869339406] [2020-07-19 22:53:08,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:53:08,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:08,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:53:08,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 22:53:08,727 INFO L87 Difference]: Start difference. First operand 117 states and 135 transitions. Second operand 8 states. [2020-07-19 22:53:09,085 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:09,424 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:09,651 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:09,890 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:10,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:10,935 INFO L93 Difference]: Finished difference Result 235 states and 287 transitions. [2020-07-19 22:53:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 22:53:10,936 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-19 22:53:10,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:10,939 INFO L225 Difference]: With dead ends: 235 [2020-07-19 22:53:10,939 INFO L226 Difference]: Without dead ends: 142 [2020-07-19 22:53:10,941 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:53:10,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2020-07-19 22:53:10,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 117. [2020-07-19 22:53:10,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-07-19 22:53:10,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 134 transitions. [2020-07-19 22:53:10,976 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 134 transitions. Word has length 51 [2020-07-19 22:53:10,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:10,977 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 134 transitions. [2020-07-19 22:53:10,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:53:10,977 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 134 transitions. [2020-07-19 22:53:10,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-19 22:53:10,979 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:10,980 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] [2020-07-19 22:53:10,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 22:53:10,980 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:10,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:10,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1699182139, now seen corresponding path program 1 times [2020-07-19 22:53:10,981 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:10,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104004538] [2020-07-19 22:53:10,981 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:11,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,231 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:11,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:11,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104004538] [2020-07-19 22:53:11,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:11,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-19 22:53:11,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308126835] [2020-07-19 22:53:11,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:53:11,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:11,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:53:11,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-19 22:53:11,315 INFO L87 Difference]: Start difference. First operand 117 states and 134 transitions. Second operand 6 states. [2020-07-19 22:53:11,651 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:12,697 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:13,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:13,313 INFO L93 Difference]: Finished difference Result 327 states and 403 transitions. [2020-07-19 22:53:13,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 22:53:13,314 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-19 22:53:13,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:13,317 INFO L225 Difference]: With dead ends: 327 [2020-07-19 22:53:13,317 INFO L226 Difference]: Without dead ends: 234 [2020-07-19 22:53:13,318 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:53:13,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-19 22:53:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 193. [2020-07-19 22:53:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 193 states. [2020-07-19 22:53:13,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 219 transitions. [2020-07-19 22:53:13,364 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 219 transitions. Word has length 64 [2020-07-19 22:53:13,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:13,365 INFO L479 AbstractCegarLoop]: Abstraction has 193 states and 219 transitions. [2020-07-19 22:53:13,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:53:13,365 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 219 transitions. [2020-07-19 22:53:13,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-19 22:53:13,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:13,367 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:13,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 22:53:13,368 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:13,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:13,368 INFO L82 PathProgramCache]: Analyzing trace with hash 906371281, now seen corresponding path program 1 times [2020-07-19 22:53:13,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:13,368 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032882137] [2020-07-19 22:53:13,369 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:13,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,685 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:13,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:13,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032882137] [2020-07-19 22:53:13,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 22:53:13,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-19 22:53:13,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145105843] [2020-07-19 22:53:13,832 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-19 22:53:13,833 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:13,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-19 22:53:13,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:53:13,834 INFO L87 Difference]: Start difference. First operand 193 states and 219 transitions. Second operand 12 states. [2020-07-19 22:53:14,316 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:14,647 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:14,881 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:15,102 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:15,590 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:16,415 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:16,669 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:16,905 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:17,155 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:17,400 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:17,640 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:18,846 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:19,170 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:19,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:19,734 INFO L93 Difference]: Finished difference Result 671 states and 870 transitions. [2020-07-19 22:53:19,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-19 22:53:19,739 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-07-19 22:53:19,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:19,748 INFO L225 Difference]: With dead ends: 671 [2020-07-19 22:53:19,748 INFO L226 Difference]: Without dead ends: 502 [2020-07-19 22:53:19,749 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-19 22:53:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-07-19 22:53:19,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 444. [2020-07-19 22:53:19,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 444 states. [2020-07-19 22:53:19,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 523 transitions. [2020-07-19 22:53:19,886 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 523 transitions. Word has length 78 [2020-07-19 22:53:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:19,887 INFO L479 AbstractCegarLoop]: Abstraction has 444 states and 523 transitions. [2020-07-19 22:53:19,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-19 22:53:19,887 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 523 transitions. [2020-07-19 22:53:19,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-19 22:53:19,891 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:19,891 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:19,892 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 22:53:19,892 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:19,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:19,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1573115002, now seen corresponding path program 1 times [2020-07-19 22:53:19,893 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:19,893 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949450373] [2020-07-19 22:53:19,893 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:19,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,143 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:20,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:20,390 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 22:53:20,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949450373] [2020-07-19 22:53:20,392 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1350309695] [2020-07-19 22:53:20,392 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3c3c3cbd No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:20,706 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@3c3c3cbd issued 2 check-sat command(s) [2020-07-19 22:53:20,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:20,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 700 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-19 22:53:20,723 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:20,863 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:20,864 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:20,864 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-19 22:53:20,864 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123374327] [2020-07-19 22:53:20,865 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 22:53:20,865 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:20,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 22:53:20,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-19 22:53:20,866 INFO L87 Difference]: Start difference. First operand 444 states and 523 transitions. Second operand 8 states. [2020-07-19 22:53:22,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:22,066 INFO L93 Difference]: Finished difference Result 1138 states and 1491 transitions. [2020-07-19 22:53:22,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 22:53:22,067 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 130 [2020-07-19 22:53:22,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:22,072 INFO L225 Difference]: With dead ends: 1138 [2020-07-19 22:53:22,073 INFO L226 Difference]: Without dead ends: 818 [2020-07-19 22:53:22,074 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 172 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-19 22:53:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 818 states. [2020-07-19 22:53:22,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 818 to 747. [2020-07-19 22:53:22,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 747 states. [2020-07-19 22:53:22,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 747 states to 747 states and 921 transitions. [2020-07-19 22:53:22,223 INFO L78 Accepts]: Start accepts. Automaton has 747 states and 921 transitions. Word has length 130 [2020-07-19 22:53:22,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:22,223 INFO L479 AbstractCegarLoop]: Abstraction has 747 states and 921 transitions. [2020-07-19 22:53:22,223 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 22:53:22,223 INFO L276 IsEmpty]: Start isEmpty. Operand 747 states and 921 transitions. [2020-07-19 22:53:22,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-19 22:53:22,226 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:22,226 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] [2020-07-19 22:53:22,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-19 22:53:22,440 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:22,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:22,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1074748620, now seen corresponding path program 1 times [2020-07-19 22:53:22,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:22,441 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079536233] [2020-07-19 22:53:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:22,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,690 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:22,859 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 22:53:22,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079536233] [2020-07-19 22:53:22,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587925650] [2020-07-19 22:53:22,860 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8b30814 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:23,396 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@8b30814 issued 3 check-sat command(s) [2020-07-19 22:53:23,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:23,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 749 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:53:23,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-19 22:53:23,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:23,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-19 22:53:23,450 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034639568] [2020-07-19 22:53:23,450 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:53:23,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:23,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:53:23,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-19 22:53:23,451 INFO L87 Difference]: Start difference. First operand 747 states and 921 transitions. Second operand 6 states. [2020-07-19 22:53:23,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:23,611 INFO L93 Difference]: Finished difference Result 1490 states and 1878 transitions. [2020-07-19 22:53:23,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 22:53:23,612 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 126 [2020-07-19 22:53:23,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:23,617 INFO L225 Difference]: With dead ends: 1490 [2020-07-19 22:53:23,617 INFO L226 Difference]: Without dead ends: 767 [2020-07-19 22:53:23,620 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 164 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-19 22:53:23,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2020-07-19 22:53:23,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2020-07-19 22:53:23,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 767 states. [2020-07-19 22:53:23,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 945 transitions. [2020-07-19 22:53:23,759 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 945 transitions. Word has length 126 [2020-07-19 22:53:23,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:23,760 INFO L479 AbstractCegarLoop]: Abstraction has 767 states and 945 transitions. [2020-07-19 22:53:23,760 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:53:23,760 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 945 transitions. [2020-07-19 22:53:23,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-19 22:53:23,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:23,763 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] [2020-07-19 22:53:23,975 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:23,976 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:23,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:23,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1101814222, now seen corresponding path program 1 times [2020-07-19 22:53:23,977 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:23,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127443986] [2020-07-19 22:53:23,978 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,240 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:24,409 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-19 22:53:24,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127443986] [2020-07-19 22:53:24,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577810147] [2020-07-19 22:53:24,410 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4fed2a10 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:24,832 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4fed2a10 issued 3 check-sat command(s) [2020-07-19 22:53:24,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:24,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-19 22:53:24,846 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:24,927 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-19 22:53:24,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:24,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 15 [2020-07-19 22:53:24,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559647383] [2020-07-19 22:53:24,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 22:53:24,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:24,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 22:53:24,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:53:24,930 INFO L87 Difference]: Start difference. First operand 767 states and 945 transitions. Second operand 5 states. [2020-07-19 22:53:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:25,059 INFO L93 Difference]: Finished difference Result 1385 states and 1742 transitions. [2020-07-19 22:53:25,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 22:53:25,059 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2020-07-19 22:53:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:25,063 INFO L225 Difference]: With dead ends: 1385 [2020-07-19 22:53:25,064 INFO L226 Difference]: Without dead ends: 642 [2020-07-19 22:53:25,066 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-07-19 22:53:25,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-07-19 22:53:25,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 642. [2020-07-19 22:53:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 642 states. [2020-07-19 22:53:25,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 777 transitions. [2020-07-19 22:53:25,180 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 777 transitions. Word has length 126 [2020-07-19 22:53:25,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:25,180 INFO L479 AbstractCegarLoop]: Abstraction has 642 states and 777 transitions. [2020-07-19 22:53:25,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 22:53:25,181 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 777 transitions. [2020-07-19 22:53:25,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-19 22:53:25,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:25,183 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:25,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:25,397 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:25,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:25,397 INFO L82 PathProgramCache]: Analyzing trace with hash -2074968439, now seen corresponding path program 1 times [2020-07-19 22:53:25,398 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:25,398 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157523843] [2020-07-19 22:53:25,398 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:25,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,669 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:25,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:25,836 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 22:53:25,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157523843] [2020-07-19 22:53:25,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601308192] [2020-07-19 22:53:25,837 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9afcf88 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:26,210 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9afcf88 issued 4 check-sat command(s) [2020-07-19 22:53:26,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:26,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 827 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:53:26,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 22:53:26,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 22:53:26,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9] total 20 [2020-07-19 22:53:26,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146363811] [2020-07-19 22:53:26,406 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-07-19 22:53:26,407 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:26,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-07-19 22:53:26,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2020-07-19 22:53:26,408 INFO L87 Difference]: Start difference. First operand 642 states and 777 transitions. Second operand 20 states. [2020-07-19 22:53:27,561 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:28,288 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:28,598 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:28,980 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:30,373 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:30,723 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:30,999 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:31,501 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-19 22:53:31,741 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:32,052 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:32,312 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:32,595 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:32,839 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:33,306 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 191 [2020-07-19 22:53:33,610 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-19 22:53:33,944 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-07-19 22:53:35,121 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:35,411 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:35,678 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:35,931 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:36,191 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:36,438 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:36,679 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 22:53:36,926 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:37,209 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:37,465 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-19 22:53:38,190 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 22:53:38,445 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 22:53:38,688 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:38,941 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:39,176 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:39,406 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:39,673 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:39,924 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:40,157 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 22:53:40,389 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:40,652 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:40,887 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-19 22:53:43,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:43,153 INFO L93 Difference]: Finished difference Result 1837 states and 2411 transitions. [2020-07-19 22:53:43,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-19 22:53:43,155 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 130 [2020-07-19 22:53:43,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:43,165 INFO L225 Difference]: With dead ends: 1837 [2020-07-19 22:53:43,166 INFO L226 Difference]: Without dead ends: 1219 [2020-07-19 22:53:43,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2612 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=1190, Invalid=6642, Unknown=0, NotChecked=0, Total=7832 [2020-07-19 22:53:43,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1219 states. [2020-07-19 22:53:43,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1219 to 1024. [2020-07-19 22:53:43,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-07-19 22:53:43,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1222 transitions. [2020-07-19 22:53:43,448 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1222 transitions. Word has length 130 [2020-07-19 22:53:43,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:43,452 INFO L479 AbstractCegarLoop]: Abstraction has 1024 states and 1222 transitions. [2020-07-19 22:53:43,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-07-19 22:53:43,452 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1222 transitions. [2020-07-19 22:53:43,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-19 22:53:43,458 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:43,458 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 22:53:43,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:43,672 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:43,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:43,673 INFO L82 PathProgramCache]: Analyzing trace with hash -85200478, now seen corresponding path program 1 times [2020-07-19 22:53:43,673 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:43,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013556617] [2020-07-19 22:53:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:43,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:43,981 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 22:53:43,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:43,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:43,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 22:53:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2020-07-19 22:53:44,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013556617] [2020-07-19 22:53:44,121 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123125608] [2020-07-19 22:53:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@59f526f4 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 22:53:44,526 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@59f526f4 issued 4 check-sat command(s) [2020-07-19 22:53:44,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 22:53:44,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-19 22:53:44,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 22:53:44,578 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2020-07-19 22:53:44,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 22:53:44,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 12 [2020-07-19 22:53:44,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154063691] [2020-07-19 22:53:44,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-19 22:53:44,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 22:53:44,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-19 22:53:44,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2020-07-19 22:53:44,581 INFO L87 Difference]: Start difference. First operand 1024 states and 1222 transitions. Second operand 6 states. [2020-07-19 22:53:44,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 22:53:44,862 INFO L93 Difference]: Finished difference Result 1037 states and 1237 transitions. [2020-07-19 22:53:44,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-19 22:53:44,862 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-19 22:53:44,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 22:53:44,869 INFO L225 Difference]: With dead ends: 1037 [2020-07-19 22:53:44,869 INFO L226 Difference]: Without dead ends: 1034 [2020-07-19 22:53:44,870 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2020-07-19 22:53:44,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1034 states. [2020-07-19 22:53:45,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1034 to 1024. [2020-07-19 22:53:45,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1024 states. [2020-07-19 22:53:45,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1024 states to 1024 states and 1219 transitions. [2020-07-19 22:53:45,051 INFO L78 Accepts]: Start accepts. Automaton has 1024 states and 1219 transitions. Word has length 185 [2020-07-19 22:53:45,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 22:53:45,051 INFO L479 AbstractCegarLoop]: Abstraction has 1024 states and 1219 transitions. [2020-07-19 22:53:45,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-19 22:53:45,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1024 states and 1219 transitions. [2020-07-19 22:53:45,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-19 22:53:45,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 22:53:45,056 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] [2020-07-19 22:53:45,269 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-19 22:53:45,270 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 22:53:45,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 22:53:45,271 INFO L82 PathProgramCache]: Analyzing trace with hash -775865217, now seen corresponding path program 1 times [2020-07-19 22:53:45,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 22:53:45,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336974261] [2020-07-19 22:53:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1bceb44d [2020-07-19 22:53:45,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:53:45,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:53:45,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 22:53:45,401 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 22:53:45,757 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-19 22:53:45,759 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 22:53:45,760 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-19 22:53:46,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 10:53:46 BoogieIcfgContainer [2020-07-19 22:53:46,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 22:53:46,129 INFO L168 Benchmark]: Toolchain (without parser) took 43407.74 ms. Allocated memory was 144.7 MB in the beginning and 667.9 MB in the end (delta: 523.2 MB). Free memory was 101.1 MB in the beginning and 546.7 MB in the end (delta: -445.5 MB). Peak memory consumption was 534.3 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:46,130 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 22:53:46,133 INFO L168 Benchmark]: CACSL2BoogieTranslator took 684.34 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 100.7 MB in the beginning and 168.5 MB in the end (delta: -67.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:46,138 INFO L168 Benchmark]: Boogie Preprocessor took 82.29 ms. Allocated memory is still 200.8 MB. Free memory was 168.5 MB in the beginning and 164.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:46,139 INFO L168 Benchmark]: RCFGBuilder took 1061.16 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 196.8 MB in the end (delta: -32.5 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:46,142 INFO L168 Benchmark]: TraceAbstraction took 41573.68 ms. Allocated memory was 231.7 MB in the beginning and 667.9 MB in the end (delta: 436.2 MB). Free memory was 195.3 MB in the beginning and 546.7 MB in the end (delta: -351.3 MB). Peak memory consumption was 541.5 MB. Max. memory is 7.1 GB. [2020-07-19 22:53:46,150 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 684.34 ms. Allocated memory was 144.7 MB in the beginning and 200.8 MB in the end (delta: 56.1 MB). Free memory was 100.7 MB in the beginning and 168.5 MB in the end (delta: -67.8 MB). Peak memory consumption was 22.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 82.29 ms. Allocated memory is still 200.8 MB. Free memory was 168.5 MB in the beginning and 164.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1061.16 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 196.8 MB in the end (delta: -32.5 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 41573.68 ms. Allocated memory was 231.7 MB in the beginning and 667.9 MB in the end (delta: 436.2 MB). Free memory was 195.3 MB in the beginning and 546.7 MB in the end (delta: -351.3 MB). Peak memory consumption was 541.5 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)=173, \old(head)=163, \old(head)=176, \old(methaneLevelCritical)=145, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=139, 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: 41.1s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1447 SDtfs, 3054 SDslu, 2742 SDs, 0 SdLazy, 8219 SolverSat, 2036 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1223 GetRequests, 1032 SyntacticMatches, 3 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2836 ImplicationChecksByTransitivity, 17.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1024occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 457 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 4.4s InterpolantComputationTime, 1865 NumberOfCodeBlocks, 1741 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 1665 ConstructedInterpolants, 0 QuantifiedInterpolants, 507503 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3978 ConjunctsInSsa, 51 ConjunctsInUnsatCore, 15 InterpolantComputations, 9 PerfectInterpolantSequences, 363/382 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...