/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:42:18,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:42:18,370 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:42:18,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:42:18,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:42:18,383 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:42:18,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:42:18,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:42:18,387 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:42:18,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:42:18,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:42:18,390 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:42:18,391 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:42:18,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:42:18,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:42:18,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:42:18,394 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:42:18,395 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:42:18,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:42:18,399 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:42:18,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:42:18,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:42:18,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:42:18,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:42:18,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:42:18,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:42:18,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:42:18,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:42:18,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:42:18,409 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:42:18,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:42:18,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:42:18,411 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:42:18,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:42:18,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:42:18,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:42:18,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:42:18,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:42:18,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:42:18,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:42:18,415 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:42:18,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:42:18,430 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:42:18,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:42:18,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:42:18,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:42:18,432 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:42:18,432 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:42:18,433 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:42:18,433 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:42:18,433 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:42:18,433 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:42:18,433 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:42:18,433 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:42:18,434 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:42:18,434 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:42:18,434 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:42:18,434 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:42:18,434 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:42:18,435 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:42:18,435 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:42:18,435 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:42:18,435 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:42:18,435 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:42:18,436 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:42:18,436 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:42:18,436 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:42:18,436 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:42:18,436 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:18,437 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:42:18,437 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:42:18,437 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:42:18,723 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:42:18,734 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:42:18,738 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:42:18,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:42:18,743 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:42:18,745 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-07-21 15:42:18,814 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2ca0536/68d1f2d456014755832f339e9c5eede1/FLAG0df9d319b [2020-07-21 15:42:19,298 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:42:19,299 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product45.cil.c [2020-07-21 15:42:19,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2ca0536/68d1f2d456014755832f339e9c5eede1/FLAG0df9d319b [2020-07-21 15:42:19,605 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a2ca0536/68d1f2d456014755832f339e9c5eede1 [2020-07-21 15:42:19,613 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:42:19,615 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:42:19,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:42:19,617 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:42:19,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:42:19,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:19" (1/1) ... [2020-07-21 15:42:19,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f732132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:19, skipping insertion in model container [2020-07-21 15:42:19,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:19" (1/1) ... [2020-07-21 15:42:19,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:42:19,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:42:20,043 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:42:20,140 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:42:20,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:42:20,251 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:42:20,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20 WrapperNode [2020-07-21 15:42:20,252 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:42:20,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:42:20,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:42:20,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:42:20,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... [2020-07-21 15:42:20,344 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:42:20,345 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:42:20,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:42:20,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:42:20,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:42:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:42:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:42:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:42:20,404 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:42:20,405 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:42:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:42:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:42:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:42:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:42:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:42:20,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:42:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:42:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:42:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:42:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:42:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:42:20,407 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 15:42:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:42:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:42:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:42:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:42:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:42:20,408 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:42:20,409 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:42:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:42:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:42:20,410 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:42:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:42:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:42:20,410 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:42:20,411 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:42:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:42:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:42:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:42:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:42:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:42:20,412 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:42:20,413 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 15:42:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:42:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:42:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:42:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:42:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:42:20,414 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:42:20,415 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:42:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:42:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:42:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:42:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:42:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:42:20,416 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:42:20,417 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:42:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:42:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:42:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:42:20,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:42:21,483 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:42:21,483 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:42:21,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:21 BoogieIcfgContainer [2020-07-21 15:42:21,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:42:21,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:42:21,490 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:42:21,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:42:21,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:42:19" (1/3) ... [2020-07-21 15:42:21,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565dc511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:21, skipping insertion in model container [2020-07-21 15:42:21,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:20" (2/3) ... [2020-07-21 15:42:21,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@565dc511 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:21, skipping insertion in model container [2020-07-21 15:42:21,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:21" (3/3) ... [2020-07-21 15:42:21,497 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product45.cil.c [2020-07-21 15:42:21,507 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:42:21,514 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:42:21,527 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:42:21,550 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:42:21,550 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:42:21,550 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:42:21,550 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:42:21,551 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:42:21,551 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:42:21,551 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:42:21,551 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:42:21,573 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states. [2020-07-21 15:42:21,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 15:42:21,582 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:21,583 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:21,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:21,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:21,588 INFO L82 PathProgramCache]: Analyzing trace with hash 261309835, now seen corresponding path program 1 times [2020-07-21 15:42:21,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:21,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518795747] [2020-07-21 15:42:21,596 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:22,044 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:22,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:22,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 637 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:42:22,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:22,114 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:22,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518795747] [2020-07-21 15:42:22,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:22,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:42:22,117 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133212227] [2020-07-21 15:42:22,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:42:22,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:22,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:42:22,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:42:22,146 INFO L87 Difference]: Start difference. First operand 176 states. Second operand 2 states. [2020-07-21 15:42:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:22,219 INFO L93 Difference]: Finished difference Result 266 states and 329 transitions. [2020-07-21 15:42:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:42:22,221 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 15:42:22,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:22,231 INFO L225 Difference]: With dead ends: 266 [2020-07-21 15:42:22,232 INFO L226 Difference]: Without dead ends: 133 [2020-07-21 15:42:22,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:42:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-21 15:42:22,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-21 15:42:22,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-21 15:42:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 156 transitions. [2020-07-21 15:42:22,287 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 156 transitions. Word has length 46 [2020-07-21 15:42:22,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:22,288 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 156 transitions. [2020-07-21 15:42:22,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:42:22,288 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 156 transitions. [2020-07-21 15:42:22,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 15:42:22,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:22,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:22,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:22,507 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:22,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:22,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1021856254, now seen corresponding path program 1 times [2020-07-21 15:42:22,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:22,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [206681175] [2020-07-21 15:42:22,508 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:22,866 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:22,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:22,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:42:22,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:22,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:22,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:22,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [206681175] [2020-07-21 15:42:22,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:22,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:22,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605717930] [2020-07-21 15:42:22,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:22,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:22,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:22,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:22,915 INFO L87 Difference]: Start difference. First operand 133 states and 156 transitions. Second operand 3 states. [2020-07-21 15:42:22,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:22,942 INFO L93 Difference]: Finished difference Result 242 states and 291 transitions. [2020-07-21 15:42:22,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:22,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 15:42:22,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:22,945 INFO L225 Difference]: With dead ends: 242 [2020-07-21 15:42:22,945 INFO L226 Difference]: Without dead ends: 133 [2020-07-21 15:42:22,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:22,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-07-21 15:42:22,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-07-21 15:42:22,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-07-21 15:42:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 155 transitions. [2020-07-21 15:42:22,964 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 155 transitions. Word has length 47 [2020-07-21 15:42:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:22,965 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 155 transitions. [2020-07-21 15:42:22,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 155 transitions. [2020-07-21 15:42:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 15:42:22,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:22,968 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:23,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:23,182 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:23,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:23,182 INFO L82 PathProgramCache]: Analyzing trace with hash -629251764, now seen corresponding path program 1 times [2020-07-21 15:42:23,182 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:23,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1729065013] [2020-07-21 15:42:23,183 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:23,492 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:23,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:23,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:42:23,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:23,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:23,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:23,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1729065013] [2020-07-21 15:42:23,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:23,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:23,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690816849] [2020-07-21 15:42:23,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:23,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:23,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:23,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:23,562 INFO L87 Difference]: Start difference. First operand 133 states and 155 transitions. Second operand 6 states. [2020-07-21 15:42:23,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:23,797 INFO L93 Difference]: Finished difference Result 340 states and 427 transitions. [2020-07-21 15:42:23,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:23,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-21 15:42:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:23,802 INFO L225 Difference]: With dead ends: 340 [2020-07-21 15:42:23,802 INFO L226 Difference]: Without dead ends: 231 [2020-07-21 15:42:23,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:42:23,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2020-07-21 15:42:23,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2020-07-21 15:42:23,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-21 15:42:23,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 286 transitions. [2020-07-21 15:42:23,834 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 286 transitions. Word has length 64 [2020-07-21 15:42:23,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:23,835 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 286 transitions. [2020-07-21 15:42:23,835 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:23,835 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 286 transitions. [2020-07-21 15:42:23,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-07-21 15:42:23,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:23,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:24,055 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:24,056 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:24,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:24,056 INFO L82 PathProgramCache]: Analyzing trace with hash -866450298, now seen corresponding path program 1 times [2020-07-21 15:42:24,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:24,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [502895269] [2020-07-21 15:42:24,058 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:24,397 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:24,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:24,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:42:24,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:24,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:24,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:24,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [502895269] [2020-07-21 15:42:24,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:24,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 15:42:24,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419880853] [2020-07-21 15:42:24,468 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 15:42:24,468 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:24,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 15:42:24,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:42:24,468 INFO L87 Difference]: Start difference. First operand 231 states and 286 transitions. Second operand 7 states. [2020-07-21 15:42:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:25,238 INFO L93 Difference]: Finished difference Result 589 states and 823 transitions. [2020-07-21 15:42:25,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 15:42:25,241 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2020-07-21 15:42:25,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:25,245 INFO L225 Difference]: With dead ends: 589 [2020-07-21 15:42:25,246 INFO L226 Difference]: Without dead ends: 382 [2020-07-21 15:42:25,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:42:25,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-07-21 15:42:25,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 348. [2020-07-21 15:42:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2020-07-21 15:42:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 459 transitions. [2020-07-21 15:42:25,295 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 459 transitions. Word has length 68 [2020-07-21 15:42:25,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:25,295 INFO L479 AbstractCegarLoop]: Abstraction has 348 states and 459 transitions. [2020-07-21 15:42:25,296 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 15:42:25,296 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 459 transitions. [2020-07-21 15:42:25,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 15:42:25,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:25,303 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:25,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:25,518 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:25,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:25,519 INFO L82 PathProgramCache]: Analyzing trace with hash 783945498, now seen corresponding path program 1 times [2020-07-21 15:42:25,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:25,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316779485] [2020-07-21 15:42:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:25,822 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:25,823 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:25,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:25,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:25,876 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-21 15:42:25,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:25,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316779485] [2020-07-21 15:42:25,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:25,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:25,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013401361] [2020-07-21 15:42:25,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:25,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:25,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:25,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:25,879 INFO L87 Difference]: Start difference. First operand 348 states and 459 transitions. Second operand 6 states. [2020-07-21 15:42:25,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:25,922 INFO L93 Difference]: Finished difference Result 686 states and 976 transitions. [2020-07-21 15:42:25,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:25,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 15:42:25,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:25,926 INFO L225 Difference]: With dead ends: 686 [2020-07-21 15:42:25,926 INFO L226 Difference]: Without dead ends: 362 [2020-07-21 15:42:25,928 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:42:25,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-07-21 15:42:25,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 358. [2020-07-21 15:42:25,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 358 states. [2020-07-21 15:42:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 470 transitions. [2020-07-21 15:42:25,962 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 470 transitions. Word has length 145 [2020-07-21 15:42:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:25,963 INFO L479 AbstractCegarLoop]: Abstraction has 358 states and 470 transitions. [2020-07-21 15:42:25,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 470 transitions. [2020-07-21 15:42:25,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 15:42:25,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:25,967 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:26,179 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:26,180 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:26,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:26,181 INFO L82 PathProgramCache]: Analyzing trace with hash -272785704, now seen corresponding path program 1 times [2020-07-21 15:42:26,181 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:26,181 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [876391160] [2020-07-21 15:42:26,182 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:26,369 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:26,369 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:26,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:42:26,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:26,441 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-07-21 15:42:26,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:26,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [876391160] [2020-07-21 15:42:26,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:26,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:42:26,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107277023] [2020-07-21 15:42:26,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:42:26,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:26,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:42:26,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:42:26,444 INFO L87 Difference]: Start difference. First operand 358 states and 470 transitions. Second operand 5 states. [2020-07-21 15:42:26,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:26,472 INFO L93 Difference]: Finished difference Result 666 states and 922 transitions. [2020-07-21 15:42:26,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:42:26,473 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-07-21 15:42:26,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:26,476 INFO L225 Difference]: With dead ends: 666 [2020-07-21 15:42:26,476 INFO L226 Difference]: Without dead ends: 332 [2020-07-21 15:42:26,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:42:26,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-07-21 15:42:26,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2020-07-21 15:42:26,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-07-21 15:42:26,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 430 transitions. [2020-07-21 15:42:26,502 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 430 transitions. Word has length 145 [2020-07-21 15:42:26,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:26,503 INFO L479 AbstractCegarLoop]: Abstraction has 332 states and 430 transitions. [2020-07-21 15:42:26,503 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:42:26,503 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 430 transitions. [2020-07-21 15:42:26,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 15:42:26,506 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:26,506 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:26,721 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:26,722 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:26,722 INFO L82 PathProgramCache]: Analyzing trace with hash -616346163, now seen corresponding path program 1 times [2020-07-21 15:42:26,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:26,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [634819494] [2020-07-21 15:42:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:26,899 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:26,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:26,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:42:26,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:26,935 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-21 15:42:26,935 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:26,936 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [634819494] [2020-07-21 15:42:26,936 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:26,936 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:26,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458710498] [2020-07-21 15:42:26,937 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:26,938 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:26,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:26,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:26,938 INFO L87 Difference]: Start difference. First operand 332 states and 430 transitions. Second operand 3 states. [2020-07-21 15:42:26,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:26,958 INFO L93 Difference]: Finished difference Result 532 states and 653 transitions. [2020-07-21 15:42:26,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:26,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 15:42:26,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:26,961 INFO L225 Difference]: With dead ends: 532 [2020-07-21 15:42:26,963 INFO L226 Difference]: Without dead ends: 296 [2020-07-21 15:42:26,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2020-07-21 15:42:26,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2020-07-21 15:42:26,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-07-21 15:42:26,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 360 transitions. [2020-07-21 15:42:26,988 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 360 transitions. Word has length 137 [2020-07-21 15:42:26,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:26,988 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 360 transitions. [2020-07-21 15:42:26,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:26,988 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 360 transitions. [2020-07-21 15:42:26,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-21 15:42:26,990 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:26,991 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:27,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:27,207 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:27,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash -1471520969, now seen corresponding path program 1 times [2020-07-21 15:42:27,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:27,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [917329358] [2020-07-21 15:42:27,209 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:27,401 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:27,402 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:27,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:42:27,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:27,473 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:27,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:27,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [917329358] [2020-07-21 15:42:27,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:27,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:27,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965158227] [2020-07-21 15:42:27,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:27,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:27,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:27,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:27,475 INFO L87 Difference]: Start difference. First operand 296 states and 360 transitions. Second operand 6 states. [2020-07-21 15:42:28,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:28,180 INFO L93 Difference]: Finished difference Result 775 states and 1009 transitions. [2020-07-21 15:42:28,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:42:28,181 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2020-07-21 15:42:28,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:28,186 INFO L225 Difference]: With dead ends: 775 [2020-07-21 15:42:28,186 INFO L226 Difference]: Without dead ends: 503 [2020-07-21 15:42:28,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:42:28,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 503 states. [2020-07-21 15:42:28,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 503 to 488. [2020-07-21 15:42:28,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-07-21 15:42:28,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 604 transitions. [2020-07-21 15:42:28,224 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 604 transitions. Word has length 145 [2020-07-21 15:42:28,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:28,225 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 604 transitions. [2020-07-21 15:42:28,225 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:28,225 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 604 transitions. [2020-07-21 15:42:28,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 15:42:28,228 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:28,229 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:28,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:28,442 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:28,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:28,443 INFO L82 PathProgramCache]: Analyzing trace with hash 432107741, now seen corresponding path program 1 times [2020-07-21 15:42:28,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:28,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [300773653] [2020-07-21 15:42:28,445 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:28,706 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:28,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:28,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 870 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:28,718 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:28,821 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:28,821 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:42:29,225 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 18 proven. 5 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 15:42:29,226 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [300773653] [2020-07-21 15:42:29,226 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:42:29,226 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 15:42:29,227 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922352087] [2020-07-21 15:42:29,227 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 15:42:29,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:29,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 15:42:29,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:42:29,228 INFO L87 Difference]: Start difference. First operand 488 states and 604 transitions. Second operand 12 states. [2020-07-21 15:42:30,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:30,699 INFO L93 Difference]: Finished difference Result 1274 states and 1732 transitions. [2020-07-21 15:42:30,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 15:42:30,700 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 149 [2020-07-21 15:42:30,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:30,706 INFO L225 Difference]: With dead ends: 1274 [2020-07-21 15:42:30,706 INFO L226 Difference]: Without dead ends: 810 [2020-07-21 15:42:30,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 286 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 15:42:30,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2020-07-21 15:42:30,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 653. [2020-07-21 15:42:30,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-07-21 15:42:30,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 812 transitions. [2020-07-21 15:42:30,758 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 812 transitions. Word has length 149 [2020-07-21 15:42:30,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:30,761 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 812 transitions. [2020-07-21 15:42:30,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 15:42:30,761 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 812 transitions. [2020-07-21 15:42:30,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-21 15:42:30,765 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:30,766 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, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:30,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:30,981 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:30,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:30,982 INFO L82 PathProgramCache]: Analyzing trace with hash -706947900, now seen corresponding path program 2 times [2020-07-21 15:42:30,982 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:30,982 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [861324309] [2020-07-21 15:42:30,983 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:31,262 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:31,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 15:42:31,262 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:42:31,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 15:42:31,346 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:42:31,687 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 15:42:31,688 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 15:42:31,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:32,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:42:32 BoogieIcfgContainer [2020-07-21 15:42:32,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:42:32,155 INFO L168 Benchmark]: Toolchain (without parser) took 12539.77 ms. Allocated memory was 136.3 MB in the beginning and 376.4 MB in the end (delta: 240.1 MB). Free memory was 99.3 MB in the beginning and 326.1 MB in the end (delta: -226.8 MB). Peak memory consumption was 262.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:32,156 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 136.3 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:42:32,157 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.90 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 169.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:32,157 INFO L168 Benchmark]: Boogie Preprocessor took 92.05 ms. Allocated memory is still 200.3 MB. Free memory was 169.2 MB in the beginning and 164.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:32,158 INFO L168 Benchmark]: RCFGBuilder took 1143.75 ms. Allocated memory was 200.3 MB in the beginning and 229.6 MB in the end (delta: 29.4 MB). Free memory was 164.8 MB in the beginning and 196.1 MB in the end (delta: -31.3 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:32,159 INFO L168 Benchmark]: TraceAbstraction took 10662.72 ms. Allocated memory was 229.6 MB in the beginning and 376.4 MB in the end (delta: 146.8 MB). Free memory was 196.1 MB in the beginning and 326.1 MB in the end (delta: -130.0 MB). Peak memory consumption was 265.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:32,163 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43 ms. Allocated memory is still 136.3 MB. Free memory was 118.1 MB in the beginning and 117.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 635.90 ms. Allocated memory was 136.3 MB in the beginning and 200.3 MB in the end (delta: 64.0 MB). Free memory was 99.1 MB in the beginning and 169.2 MB in the end (delta: -70.1 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.05 ms. Allocated memory is still 200.3 MB. Free memory was 169.2 MB in the beginning and 164.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1143.75 ms. Allocated memory was 200.3 MB in the beginning and 229.6 MB in the end (delta: 29.4 MB). Free memory was 164.8 MB in the beginning and 196.1 MB in the end (delta: -31.3 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10662.72 ms. Allocated memory was 229.6 MB in the beginning and 376.4 MB in the end (delta: 146.8 MB). Free memory was 196.1 MB in the beginning and 326.1 MB in the end (delta: -130.0 MB). Peak memory consumption was 265.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 317]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L117] int pumpRunning = 0; [L118] int systemActive = 1; [L491] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L715] int cleanupTimeShifts = 4; [L814] int waterLevel = 1; [L815] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=37, \old(head)=35, \old(head)=27, \old(methaneLevelCritical)=60, \old(pumpRunning)=59, \old(systemActive)=33, \old(waterLevel)=36, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L791] int retValue_acc ; [L792] 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] [L796] 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] [L797] 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] [L798] 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] [L934] int retValue_acc ; [L937] retValue_acc = 1 [L938] 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] [L798] 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] [L798] tmp = valid_product() [L800] 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] [L802] 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] [L803] 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] [L782] 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] [L45] int splverifierCounter ; [L46] int tmp ; [L47] int tmp___0 ; [L48] int tmp___1 ; [L49] int tmp___2 ; [L52] 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] [L54] 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] [L56] 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] [L62] tmp = __VERIFIER_nondet_int() [L64] 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] [L66] 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] [L832] COND TRUE waterLevel < 2 [L833] 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] [L66] 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] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] 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] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] 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] [L97] 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] [L125] 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] [L132] 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] [L134] 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] [L180] 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] [L183] 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] [L198] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L154] 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] [L157] 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] [L159] 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] [L294] int retValue_acc ; [L295] int tmp ; [L296] 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] [L300] 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] [L894] 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] [L897] COND FALSE !(waterLevel < 2) [L901] retValue_acc = 0 [L902] 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] [L300] 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] [L300] tmp = isHighWaterSensorDry() [L302] COND FALSE !(\read(tmp)) [L305] 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] [L307] retValue_acc = tmp___0 [L308] 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] [L159] 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] [L159] tmp = isHighWaterLevel() [L161] 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] [L163] 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] [L213] 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] [L217] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L238] 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] [L242] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] 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] [L242] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L242] retValue_acc = isMethaneLevelCritical() [L244] 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] [L217] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L217] tmp = isMethaneAlarm() [L219] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L223] CALL activatePump__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] [L208] 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] [L223] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L163] 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] [L198] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L134] 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] [L140] 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] [L690] int tmp ; [L691] 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] [L695] 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] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] 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] [L695] 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] [L695] tmp = getWaterLevel() [L697] 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] [L140] 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] [L97] 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] [L54] 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] [L56] 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] [L62] tmp = __VERIFIER_nondet_int() [L64] 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] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] 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] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] 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] [L97] 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] [L125] 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] [L127] 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] [L820] COND TRUE waterLevel > 0 [L821] 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] [L127] 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] [L132] 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] [L134] 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] [L180] 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] [L183] 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] [L185] 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] [L238] 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] [L242] 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] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] 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] [L242] 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] [L242] retValue_acc = isMethaneLevelCritical() [L244] 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] [L185] 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] [L185] tmp = isMethaneAlarm() [L187] 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] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L154] 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] [L157] 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] [L172] 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] [L193] RET processEnvironment__wrappee__methaneQuery() 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] [L134] 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] [L140] 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] [L690] int tmp ; [L691] 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] [L695] 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] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] 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] [L695] 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] [L695] tmp = getWaterLevel() [L697] 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] [L140] 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] [L97] 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] [L54] 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] [L56] 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] [L62] tmp = __VERIFIER_nondet_int() [L64] 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] [L72] tmp___0 = __VERIFIER_nondet_int() [L74] 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] [L82] tmp___2 = __VERIFIER_nondet_int() [L84] 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] [L97] 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] [L125] 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] [L127] 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] [L820] COND TRUE waterLevel > 0 [L821] 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] [L127] 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] [L132] 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] [L134] 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] [L180] 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] [L183] 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] [L185] 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] [L238] 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] [L242] 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] [L853] int retValue_acc ; [L856] retValue_acc = methaneLevelCritical [L857] 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] [L242] 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] [L242] retValue_acc = isMethaneLevelCritical() [L244] 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] [L185] 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] [L185] tmp = isMethaneAlarm() [L187] 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] [L193] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L154] 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] [L157] 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] [L172] 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] [L193] RET processEnvironment__wrappee__methaneQuery() 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] [L134] 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] [L140] 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] [L690] int tmp ; [L691] 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] [L695] 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] [L885] int retValue_acc ; [L888] retValue_acc = waterLevel [L889] 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] [L695] 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] [L695] tmp = getWaterLevel() [L697] 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] [L699] 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] [L249] int retValue_acc ; [L252] retValue_acc = pumpRunning [L253] 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] [L699] 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] [L699] tmp___0 = isPumpRunning() [L701] 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] [L703] 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] [L317] __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 39 procedures, 232 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.3s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1444 SDtfs, 1159 SDslu, 2587 SDs, 0 SdLazy, 2087 SolverSat, 599 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1113 GetRequests, 1055 SyntacticMatches, 6 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=653occurred 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 210 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1146 NumberOfCodeBlocks, 934 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1085 ConstructedInterpolants, 0 QuantifiedInterpolants, 221411 SizeOfPredicates, 28 NumberOfNonLiveVariables, 6530 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 182/207 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...