/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:25:20,535 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:25:20,538 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:25:20,554 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:25:20,555 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:25:20,556 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:25:20,558 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:25:20,571 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:25:20,572 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:25:20,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:25:20,576 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:25:20,577 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:25:20,577 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:25:20,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:25:20,583 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:25:20,584 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:25:20,586 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:25:20,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:25:20,590 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:25:20,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:25:20,595 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:25:20,600 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:25:20,601 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:25:20,602 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:25:20,606 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:25:20,606 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:25:20,606 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:25:20,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:25:20,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:25:20,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:25:20,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:25:20,612 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:25:20,612 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:25:20,615 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:25:20,616 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:25:20,616 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:25:20,617 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:25:20,617 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:25:20,617 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:25:20,618 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:25:20,620 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:25:20,620 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 16:25:20,648 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:25:20,648 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:25:20,649 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:25:20,650 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:25:20,650 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:25:20,650 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:25:20,650 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:25:20,651 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:25:20,651 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:25:20,651 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:25:20,651 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:25:20,651 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:25:20,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:25:20,652 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:25:20,652 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:25:20,652 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:25:20,652 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:25:20,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:25:20,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:25:20,653 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:25:20,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:25:20,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:20,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:25:20,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:25:20,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:25:20,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:25:20,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:20,654 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:25:20,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:25:20,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:25:20,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:25:20,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:25:20,940 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:25:20,942 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:25:20,942 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:25:20,943 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-07-20 16:25:21,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca77f7f93/3336f0f354ad4d8d9efcf70f567a1083/FLAG8798e253b [2020-07-20 16:25:21,519 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:25:21,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-07-20 16:25:21,540 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca77f7f93/3336f0f354ad4d8d9efcf70f567a1083/FLAG8798e253b [2020-07-20 16:25:21,885 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ca77f7f93/3336f0f354ad4d8d9efcf70f567a1083 [2020-07-20 16:25:21,893 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:25:21,895 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:25:21,896 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:21,896 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:25:21,900 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:25:21,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:21" (1/1) ... [2020-07-20 16:25:21,903 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73705519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:21, skipping insertion in model container [2020-07-20 16:25:21,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:25:21" (1/1) ... [2020-07-20 16:25:21,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:25:21,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:25:22,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:22,440 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:25:22,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:25:22,553 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:25:22,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22 WrapperNode [2020-07-20 16:25:22,554 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:25:22,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:25:22,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:25:22,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:25:22,568 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,594 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,665 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... [2020-07-20 16:25:22,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:25:22,682 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:25:22,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:25:22,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:25:22,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:25:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:25:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:25:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:22,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:22,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:25:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:25:22,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:25:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:25:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:25:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:25:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:25:22,774 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:25:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:25:22,775 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:25:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:25:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:25:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:25:22,776 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:25:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:25:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:25:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:25:22,777 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:25:22,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:25:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:25:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 16:25:22,779 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 16:25:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:25:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:25:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:25:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:25:22,780 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:25:22,781 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:25:22,782 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:25:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:25:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:25:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 16:25:22,783 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:25:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:25:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:25:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:25:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:25:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:25:22,784 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:25:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:25:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:25:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:25:22,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:25:22,786 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:25:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:25:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:25:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:25:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:25:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:25:22,787 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:25:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:25:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:25:22,788 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:25:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:25:22,789 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:25:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:25:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:25:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:25:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:25:22,790 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:25:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:25:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:25:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 16:25:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 16:25:22,791 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:25:22,792 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:25:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:25:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:25:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:25:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:25:22,793 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:25:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:25:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:25:22,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:25:23,996 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:25:23,997 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:25:24,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:24 BoogieIcfgContainer [2020-07-20 16:25:24,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:25:24,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:25:24,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:25:24,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:25:24,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:25:21" (1/3) ... [2020-07-20 16:25:24,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d39749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:24, skipping insertion in model container [2020-07-20 16:25:24,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:25:22" (2/3) ... [2020-07-20 16:25:24,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d39749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:25:24, skipping insertion in model container [2020-07-20 16:25:24,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:25:24" (3/3) ... [2020-07-20 16:25:24,014 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-07-20 16:25:24,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:25:24,036 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:25:24,049 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:25:24,078 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:25:24,079 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:25:24,079 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:25:24,079 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:25:24,079 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:25:24,080 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:25:24,080 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:25:24,080 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:25:24,101 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-20 16:25:24,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:25:24,111 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:24,112 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:24,112 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:24,119 INFO L82 PathProgramCache]: Analyzing trace with hash 267821041, now seen corresponding path program 1 times [2020-07-20 16:25:24,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:24,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332309497] [2020-07-20 16:25:24,128 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:24,612 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:24,612 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:24,620 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:25:24,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:24,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:24,657 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:24,658 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332309497] [2020-07-20 16:25:24,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:24,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:25:24,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015302615] [2020-07-20 16:25:24,665 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:25:24,665 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:24,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:25:24,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:24,682 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2020-07-20 16:25:24,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:24,726 INFO L93 Difference]: Finished difference Result 286 states and 353 transitions. [2020-07-20 16:25:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:25:24,728 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:25:24,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:24,743 INFO L225 Difference]: With dead ends: 286 [2020-07-20 16:25:24,743 INFO L226 Difference]: Without dead ends: 143 [2020-07-20 16:25:24,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:25:24,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-20 16:25:24,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-07-20 16:25:24,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-20 16:25:24,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-07-20 16:25:24,853 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 46 [2020-07-20 16:25:24,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:24,855 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-07-20 16:25:24,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:25:24,855 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-07-20 16:25:24,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:25:24,864 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:24,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:25,065 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:25,065 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:25,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:25,066 INFO L82 PathProgramCache]: Analyzing trace with hash -395653053, now seen corresponding path program 1 times [2020-07-20 16:25:25,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:25,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [573898651] [2020-07-20 16:25:25,066 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:25,486 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:25,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:25,491 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:25:25,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:25,527 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:25,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [573898651] [2020-07-20 16:25:25,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:25,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:25,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500152369] [2020-07-20 16:25:25,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:25,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:25,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:25,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:25,530 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2020-07-20 16:25:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:25,551 INFO L93 Difference]: Finished difference Result 225 states and 263 transitions. [2020-07-20 16:25:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:25,551 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:25:25,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:25,554 INFO L225 Difference]: With dead ends: 225 [2020-07-20 16:25:25,554 INFO L226 Difference]: Without dead ends: 134 [2020-07-20 16:25:25,556 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:25,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-20 16:25:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-07-20 16:25:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-20 16:25:25,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2020-07-20 16:25:25,572 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 47 [2020-07-20 16:25:25,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:25,573 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2020-07-20 16:25:25,573 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:25,573 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2020-07-20 16:25:25,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 16:25:25,577 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:25,577 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:25,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:25,791 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:25,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:25,791 INFO L82 PathProgramCache]: Analyzing trace with hash 1814461049, now seen corresponding path program 1 times [2020-07-20 16:25:25,792 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:25,792 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [728436839] [2020-07-20 16:25:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,183 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:26,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:26,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:25:26,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:26,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:26,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:26,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [728436839] [2020-07-20 16:25:26,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:26,216 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:26,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065375647] [2020-07-20 16:25:26,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:26,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:26,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:26,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:26,218 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 3 states. [2020-07-20 16:25:26,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:26,254 INFO L93 Difference]: Finished difference Result 350 states and 419 transitions. [2020-07-20 16:25:26,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:26,255 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 16:25:26,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:26,258 INFO L225 Difference]: With dead ends: 350 [2020-07-20 16:25:26,259 INFO L226 Difference]: Without dead ends: 240 [2020-07-20 16:25:26,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-07-20 16:25:26,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 234. [2020-07-20 16:25:26,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-07-20 16:25:26,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 279 transitions. [2020-07-20 16:25:26,287 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 279 transitions. Word has length 52 [2020-07-20 16:25:26,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:26,288 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 279 transitions. [2020-07-20 16:25:26,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:26,288 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 279 transitions. [2020-07-20 16:25:26,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 16:25:26,290 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:26,290 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] [2020-07-20 16:25:26,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,504 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:26,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:26,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1060505325, now seen corresponding path program 1 times [2020-07-20 16:25:26,506 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:26,507 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [173116762] [2020-07-20 16:25:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:26,923 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:26,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:26,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:25:26,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:27,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:27,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:27,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [173116762] [2020-07-20 16:25:27,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:27,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:27,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711178463] [2020-07-20 16:25:27,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:27,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:27,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:27,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:27,013 INFO L87 Difference]: Start difference. First operand 234 states and 279 transitions. Second operand 6 states. [2020-07-20 16:25:27,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:27,296 INFO L93 Difference]: Finished difference Result 635 states and 795 transitions. [2020-07-20 16:25:27,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:27,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 16:25:27,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:27,305 INFO L225 Difference]: With dead ends: 635 [2020-07-20 16:25:27,307 INFO L226 Difference]: Without dead ends: 425 [2020-07-20 16:25:27,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:27,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2020-07-20 16:25:27,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 425. [2020-07-20 16:25:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 425 states. [2020-07-20 16:25:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 528 transitions. [2020-07-20 16:25:27,376 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 528 transitions. Word has length 57 [2020-07-20 16:25:27,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:27,377 INFO L479 AbstractCegarLoop]: Abstraction has 425 states and 528 transitions. [2020-07-20 16:25:27,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:27,377 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 528 transitions. [2020-07-20 16:25:27,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 16:25:27,380 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:27,380 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] [2020-07-20 16:25:27,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:27,594 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:27,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:27,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1254258393, now seen corresponding path program 1 times [2020-07-20 16:25:27,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:27,596 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467819356] [2020-07-20 16:25:27,596 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:27,966 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:27,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:27,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:25:27,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:27,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:27,989 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467819356] [2020-07-20 16:25:27,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:27,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:27,990 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387308250] [2020-07-20 16:25:27,990 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:27,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:27,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:27,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:27,991 INFO L87 Difference]: Start difference. First operand 425 states and 528 transitions. Second operand 3 states. [2020-07-20 16:25:28,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:28,063 INFO L93 Difference]: Finished difference Result 1025 states and 1327 transitions. [2020-07-20 16:25:28,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:28,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 16:25:28,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:28,068 INFO L225 Difference]: With dead ends: 1025 [2020-07-20 16:25:28,068 INFO L226 Difference]: Without dead ends: 624 [2020-07-20 16:25:28,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:28,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-07-20 16:25:28,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 611. [2020-07-20 16:25:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 611 states. [2020-07-20 16:25:28,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 611 states to 611 states and 759 transitions. [2020-07-20 16:25:28,110 INFO L78 Accepts]: Start accepts. Automaton has 611 states and 759 transitions. Word has length 61 [2020-07-20 16:25:28,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:28,110 INFO L479 AbstractCegarLoop]: Abstraction has 611 states and 759 transitions. [2020-07-20 16:25:28,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:28,110 INFO L276 IsEmpty]: Start isEmpty. Operand 611 states and 759 transitions. [2020-07-20 16:25:28,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 16:25:28,116 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:28,116 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:28,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:28,331 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:28,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:28,332 INFO L82 PathProgramCache]: Analyzing trace with hash 98669811, now seen corresponding path program 1 times [2020-07-20 16:25:28,333 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:28,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [802878272] [2020-07-20 16:25:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:28,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:28,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:28,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 788 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 16:25:28,676 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:28,708 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 16:25:28,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:28,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [802878272] [2020-07-20 16:25:28,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:28,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:25:28,709 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962277539] [2020-07-20 16:25:28,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:25:28,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:28,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:25:28,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:28,712 INFO L87 Difference]: Start difference. First operand 611 states and 759 transitions. Second operand 3 states. [2020-07-20 16:25:28,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:28,816 INFO L93 Difference]: Finished difference Result 1005 states and 1252 transitions. [2020-07-20 16:25:28,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:25:28,817 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-20 16:25:28,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:28,820 INFO L225 Difference]: With dead ends: 1005 [2020-07-20 16:25:28,820 INFO L226 Difference]: Without dead ends: 418 [2020-07-20 16:25:28,822 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:25:28,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2020-07-20 16:25:28,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 405. [2020-07-20 16:25:28,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-20 16:25:28,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 493 transitions. [2020-07-20 16:25:28,843 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 493 transitions. Word has length 128 [2020-07-20 16:25:28,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:28,844 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 493 transitions. [2020-07-20 16:25:28,844 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:25:28,844 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 493 transitions. [2020-07-20 16:25:28,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 16:25:28,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:28,847 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] [2020-07-20 16:25:29,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,063 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:29,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:29,064 INFO L82 PathProgramCache]: Analyzing trace with hash -920784732, now seen corresponding path program 1 times [2020-07-20 16:25:29,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:29,066 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [503449167] [2020-07-20 16:25:29,066 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,438 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:25:29,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:29,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:29,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:29,480 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 16:25:29,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:29,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [503449167] [2020-07-20 16:25:29,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:29,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:29,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232646275] [2020-07-20 16:25:29,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:29,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:29,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:29,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:29,483 INFO L87 Difference]: Start difference. First operand 405 states and 493 transitions. Second operand 6 states. [2020-07-20 16:25:29,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:29,525 INFO L93 Difference]: Finished difference Result 800 states and 1016 transitions. [2020-07-20 16:25:29,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:25:29,526 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-20 16:25:29,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:29,529 INFO L225 Difference]: With dead ends: 800 [2020-07-20 16:25:29,530 INFO L226 Difference]: Without dead ends: 419 [2020-07-20 16:25:29,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:29,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-07-20 16:25:29,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 415. [2020-07-20 16:25:29,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-07-20 16:25:29,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 504 transitions. [2020-07-20 16:25:29,553 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 504 transitions. Word has length 143 [2020-07-20 16:25:29,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:29,554 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 504 transitions. [2020-07-20 16:25:29,554 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:29,554 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 504 transitions. [2020-07-20 16:25:29,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 16:25:29,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:29,557 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] [2020-07-20 16:25:29,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,770 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:29,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:29,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1804293722, now seen corresponding path program 1 times [2020-07-20 16:25:29,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:29,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1092072489] [2020-07-20 16:25:29,772 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:29,925 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:25:29,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:29,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:25:29,930 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:29,972 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 16:25:29,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:29,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1092072489] [2020-07-20 16:25:29,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:29,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:25:29,974 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092423768] [2020-07-20 16:25:29,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:25:29,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:29,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:25:29,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:29,975 INFO L87 Difference]: Start difference. First operand 415 states and 504 transitions. Second operand 5 states. [2020-07-20 16:25:30,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:30,013 INFO L93 Difference]: Finished difference Result 787 states and 985 transitions. [2020-07-20 16:25:30,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:25:30,013 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 143 [2020-07-20 16:25:30,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:30,017 INFO L225 Difference]: With dead ends: 787 [2020-07-20 16:25:30,017 INFO L226 Difference]: Without dead ends: 396 [2020-07-20 16:25:30,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:25:30,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-07-20 16:25:30,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2020-07-20 16:25:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-07-20 16:25:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 479 transitions. [2020-07-20 16:25:30,065 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 479 transitions. Word has length 143 [2020-07-20 16:25:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:30,065 INFO L479 AbstractCegarLoop]: Abstraction has 396 states and 479 transitions. [2020-07-20 16:25:30,065 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:25:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 479 transitions. [2020-07-20 16:25:30,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-07-20 16:25:30,068 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:30,068 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] [2020-07-20 16:25:30,281 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,282 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:30,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:30,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1003758169, now seen corresponding path program 1 times [2020-07-20 16:25:30,282 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:30,283 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1254299967] [2020-07-20 16:25:30,283 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:30,513 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 16:25:30,513 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:30,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:25:30,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:30,578 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:30,578 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:30,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1254299967] [2020-07-20 16:25:30,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:30,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:30,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37506717] [2020-07-20 16:25:30,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:30,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:30,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:30,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:30,580 INFO L87 Difference]: Start difference. First operand 396 states and 479 transitions. Second operand 6 states. [2020-07-20 16:25:31,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:31,415 INFO L93 Difference]: Finished difference Result 1121 states and 1433 transitions. [2020-07-20 16:25:31,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:31,416 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2020-07-20 16:25:31,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:31,422 INFO L225 Difference]: With dead ends: 1121 [2020-07-20 16:25:31,423 INFO L226 Difference]: Without dead ends: 749 [2020-07-20 16:25:31,424 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:25:31,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-07-20 16:25:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 720. [2020-07-20 16:25:31,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 720 states. [2020-07-20 16:25:31,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 720 states to 720 states and 879 transitions. [2020-07-20 16:25:31,493 INFO L78 Accepts]: Start accepts. Automaton has 720 states and 879 transitions. Word has length 143 [2020-07-20 16:25:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:31,494 INFO L479 AbstractCegarLoop]: Abstraction has 720 states and 879 transitions. [2020-07-20 16:25:31,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 720 states and 879 transitions. [2020-07-20 16:25:31,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-20 16:25:31,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:31,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:25:31,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:31,711 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:31,711 INFO L82 PathProgramCache]: Analyzing trace with hash -401491891, now seen corresponding path program 1 times [2020-07-20 16:25:31,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:31,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1158939104] [2020-07-20 16:25:31,712 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:32,073 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:32,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:32,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 890 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:32,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:32,162 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:25:32,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:25:32,554 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 16:25:32,554 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1158939104] [2020-07-20 16:25:32,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:25:32,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 16:25:32,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555552290] [2020-07-20 16:25:32,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 16:25:32,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:32,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 16:25:32,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 16:25:32,557 INFO L87 Difference]: Start difference. First operand 720 states and 879 transitions. Second operand 12 states. [2020-07-20 16:25:34,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:34,439 INFO L93 Difference]: Finished difference Result 1949 states and 2580 transitions. [2020-07-20 16:25:34,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 16:25:34,440 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 147 [2020-07-20 16:25:34,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:34,448 INFO L225 Difference]: With dead ends: 1949 [2020-07-20 16:25:34,448 INFO L226 Difference]: Without dead ends: 1253 [2020-07-20 16:25:34,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 282 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 16:25:34,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1253 states. [2020-07-20 16:25:34,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1253 to 972. [2020-07-20 16:25:34,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-07-20 16:25:34,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1189 transitions. [2020-07-20 16:25:34,505 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1189 transitions. Word has length 147 [2020-07-20 16:25:34,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:34,506 INFO L479 AbstractCegarLoop]: Abstraction has 972 states and 1189 transitions. [2020-07-20 16:25:34,506 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 16:25:34,506 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1189 transitions. [2020-07-20 16:25:34,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-20 16:25:34,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:34,510 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, 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] [2020-07-20 16:25:34,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:34,726 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:34,727 INFO L82 PathProgramCache]: Analyzing trace with hash -2083084986, now seen corresponding path program 1 times [2020-07-20 16:25:34,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:34,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2086860208] [2020-07-20 16:25:34,728 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:35,061 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:35,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:25:35,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:25:35,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:25:35,110 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2020-07-20 16:25:35,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:25:35,110 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2086860208] [2020-07-20 16:25:35,110 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:25:35,110 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:25:35,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357282743] [2020-07-20 16:25:35,111 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:25:35,111 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:25:35,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:25:35,112 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:25:35,112 INFO L87 Difference]: Start difference. First operand 972 states and 1189 transitions. Second operand 6 states. [2020-07-20 16:25:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:25:35,338 INFO L93 Difference]: Finished difference Result 987 states and 1205 transitions. [2020-07-20 16:25:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:25:35,339 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 199 [2020-07-20 16:25:35,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:25:35,344 INFO L225 Difference]: With dead ends: 987 [2020-07-20 16:25:35,345 INFO L226 Difference]: Without dead ends: 984 [2020-07-20 16:25:35,345 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:25:35,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2020-07-20 16:25:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 972. [2020-07-20 16:25:35,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 972 states. [2020-07-20 16:25:35,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1185 transitions. [2020-07-20 16:25:35,396 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1185 transitions. Word has length 199 [2020-07-20 16:25:35,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:25:35,397 INFO L479 AbstractCegarLoop]: Abstraction has 972 states and 1185 transitions. [2020-07-20 16:25:35,397 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:25:35,397 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1185 transitions. [2020-07-20 16:25:35,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2020-07-20 16:25:35,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:25:35,433 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, 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] [2020-07-20 16:25:35,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:35,635 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:25:35,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:25:35,635 INFO L82 PathProgramCache]: Analyzing trace with hash 402231489, now seen corresponding path program 1 times [2020-07-20 16:25:35,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:25:35,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359197504] [2020-07-20 16:25:35,636 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:36,066 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:25:36,067 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 16:25:36,067 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:25:36,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 16:25:36,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 16:25:36,515 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 16:25:36,516 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 16:25:36,726 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:25:36,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:25:36 BoogieIcfgContainer [2020-07-20 16:25:36,949 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:25:36,951 INFO L168 Benchmark]: Toolchain (without parser) took 15055.97 ms. Allocated memory was 145.2 MB in the beginning and 391.6 MB in the end (delta: 246.4 MB). Free memory was 101.8 MB in the beginning and 193.3 MB in the end (delta: -91.5 MB). Peak memory consumption was 154.9 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:36,952 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 16:25:36,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.33 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 101.4 MB in the beginning and 172.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:36,953 INFO L168 Benchmark]: Boogie Preprocessor took 127.09 ms. Allocated memory is still 204.5 MB. Free memory was 172.7 MB in the beginning and 168.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:36,954 INFO L168 Benchmark]: RCFGBuilder took 1322.74 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 168.6 MB in the beginning and 197.0 MB in the end (delta: -28.5 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:36,955 INFO L168 Benchmark]: TraceAbstraction took 12942.30 ms. Allocated memory was 237.0 MB in the beginning and 391.6 MB in the end (delta: 154.7 MB). Free memory was 197.0 MB in the beginning and 193.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 158.4 MB. Max. memory is 7.1 GB. [2020-07-20 16:25:36,958 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 145.2 MB. Free memory is still 121.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.33 ms. Allocated memory was 145.2 MB in the beginning and 204.5 MB in the end (delta: 59.2 MB). Free memory was 101.4 MB in the beginning and 172.7 MB in the end (delta: -71.3 MB). Peak memory consumption was 24.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.09 ms. Allocated memory is still 204.5 MB. Free memory was 172.7 MB in the beginning and 168.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1322.74 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 168.6 MB in the beginning and 197.0 MB in the end (delta: -28.5 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12942.30 ms. Allocated memory was 237.0 MB in the beginning and 391.6 MB in the end (delta: 154.7 MB). Free memory was 197.0 MB in the beginning and 193.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 158.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=72, \old(head)=34, \old(head)=37, \old(methaneLevelCritical)=70, \old(pumpRunning)=45, \old(systemActive)=36, \old(waterLevel)=38, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L525] int retValue_acc ; [L526] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L530] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L531] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L532] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L532] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L536] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L537] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L516] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L890] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L792] COND TRUE waterLevel < 2 [L793] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L621] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L854] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L738] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L597] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L601] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L651] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L655] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L661] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L661] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L601] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L636] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L578] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L925] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L880] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L563] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L565] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L621] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L623] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L631] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L595] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L610] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L631] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L578] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L925] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L878] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L880] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND FALSE !(\read(tmp___2)) [L914] tmp___1 = __VERIFIER_nondet_int() [L916] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=1] [L925] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L563] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L565] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L565] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L570] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L572] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L618] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L621] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L676] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L623] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L631] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L592] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L595] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L610] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L631] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L572] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L578] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L44] int tmp ; [L45] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L49] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L53] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L57] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L439] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 12.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1956 SDtfs, 1480 SDslu, 3171 SDs, 0 SdLazy, 1959 SolverSat, 685 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1326 GetRequests, 1270 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=972occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 358 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1369 NumberOfCodeBlocks, 1090 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 1301 ConstructedInterpolants, 0 QuantifiedInterpolants, 260917 SizeOfPredicates, 32 NumberOfNonLiveVariables, 7902 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 278/299 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...