/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_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:51:25,793 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:51:25,795 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:51:25,813 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:51:25,814 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:51:25,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:51:25,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:51:25,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:51:25,831 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:51:25,834 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:51:25,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:51:25,836 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:51:25,836 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:51:25,838 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:51:25,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:51:25,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:51:25,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:51:25,844 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:51:25,845 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:51:25,850 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:51:25,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:51:25,857 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:51:25,858 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:51:25,859 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:51:25,861 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:51:25,861 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:51:25,862 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:51:25,864 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:51:25,864 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:51:25,866 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:51:25,866 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:51:25,867 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:51:25,867 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:51:25,868 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:51:25,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:51:25,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:51:25,870 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:51:25,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:51:25,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:51:25,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:51:25,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:51:25,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:51:25,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:51:25,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:51:25,911 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:51:25,911 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:51:25,911 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:51:25,911 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:51:25,912 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:51:25,912 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:51:25,912 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:51:25,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:51:25,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:51:25,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:51:25,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:51:25,913 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:51:25,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:51:25,914 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:51:25,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:51:25,915 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:51:25,916 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:51:25,916 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:51:25,916 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:51:25,916 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:51:25,916 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:51:25,916 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:51:25,917 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:51:25,917 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:51:25,917 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:25,917 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:51:25,918 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:51:25,918 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_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:51:26,183 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:51:26,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:51:26,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:51:26,200 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:51:26,200 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:51:26,201 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-07-21 12:51:26,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9661459/2750dcd2f0dd419c991f288899fb26a9/FLAG720c00d38 [2020-07-21 12:51:26,773 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:51:26,774 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product41.cil.c [2020-07-21 12:51:26,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9661459/2750dcd2f0dd419c991f288899fb26a9/FLAG720c00d38 [2020-07-21 12:51:27,039 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6a9661459/2750dcd2f0dd419c991f288899fb26a9 [2020-07-21 12:51:27,048 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:51:27,050 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:51:27,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:27,051 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:51:27,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:51:27,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f36ffb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27, skipping insertion in model container [2020-07-21 12:51:27,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,064 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:51:27,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:51:27,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:27,500 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:51:27,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:51:27,615 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:51:27,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27 WrapperNode [2020-07-21 12:51:27,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:51:27,617 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:51:27,617 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:51:27,617 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:51:27,630 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,649 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,649 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,688 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... [2020-07-21 12:51:27,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:51:27,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:51:27,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:51:27,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:51:27,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:51:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:51:27,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:51:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 12:51:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 12:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:51:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:51:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:51:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:51:27,769 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:51:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:51:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-21 12:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:51:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:51:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:51:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:51:27,775 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:51:27,776 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:51:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:51:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:51:27,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:51:27,777 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:51:27,778 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:51:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:51:27,779 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:51:27,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:51:27,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:51:27,782 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:51:27,783 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:51:27,784 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:51:27,784 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:51:27,784 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-21 12:51:27,785 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:51:27,785 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:51:27,785 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:51:27,786 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:51:27,787 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:51:27,787 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:51:27,787 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:51:27,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:51:28,807 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:51:28,808 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:51:28,813 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:28 BoogieIcfgContainer [2020-07-21 12:51:28,813 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:51:28,815 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:51:28,815 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:51:28,818 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:51:28,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:51:27" (1/3) ... [2020-07-21 12:51:28,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db1dca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:28, skipping insertion in model container [2020-07-21 12:51:28,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:51:27" (2/3) ... [2020-07-21 12:51:28,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db1dca9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:51:28, skipping insertion in model container [2020-07-21 12:51:28,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:51:28" (3/3) ... [2020-07-21 12:51:28,822 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product41.cil.c [2020-07-21 12:51:28,832 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:51:28,840 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:51:28,853 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:51:28,877 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:51:28,878 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:51:28,878 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:51:28,878 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:51:28,878 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:51:28,878 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:51:28,879 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:51:28,879 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:51:28,900 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2020-07-21 12:51:28,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 12:51:28,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:28,910 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:28,911 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:28,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:28,917 INFO L82 PathProgramCache]: Analyzing trace with hash -1966863296, now seen corresponding path program 1 times [2020-07-21 12:51:28,925 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:28,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127768920] [2020-07-21 12:51:28,926 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:29,425 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:29,425 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:29,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:51:29,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:29,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:29,473 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:29,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127768920] [2020-07-21 12:51:29,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:29,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:51:29,476 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023185135] [2020-07-21 12:51:29,481 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:51:29,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:29,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:51:29,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:51:29,498 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2020-07-21 12:51:29,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:29,538 INFO L93 Difference]: Finished difference Result 240 states and 299 transitions. [2020-07-21 12:51:29,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:51:29,540 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 12:51:29,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:29,552 INFO L225 Difference]: With dead ends: 240 [2020-07-21 12:51:29,552 INFO L226 Difference]: Without dead ends: 122 [2020-07-21 12:51:29,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:51:29,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-21 12:51:29,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-07-21 12:51:29,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-21 12:51:29,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2020-07-21 12:51:29,613 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 51 [2020-07-21 12:51:29,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:29,613 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2020-07-21 12:51:29,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:51:29,614 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2020-07-21 12:51:29,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:51:29,617 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:29,617 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] [2020-07-21 12:51:29,833 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:29,834 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:29,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:29,834 INFO L82 PathProgramCache]: Analyzing trace with hash 335710898, now seen corresponding path program 1 times [2020-07-21 12:51:29,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:29,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [458157320] [2020-07-21 12:51:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:30,164 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:30,164 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:30,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 675 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:30,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:30,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:30,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:30,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [458157320] [2020-07-21 12:51:30,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:30,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:30,210 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415036180] [2020-07-21 12:51:30,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:30,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:30,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:30,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:30,213 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 3 states. [2020-07-21 12:51:30,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:30,234 INFO L93 Difference]: Finished difference Result 216 states and 261 transitions. [2020-07-21 12:51:30,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:30,235 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 12:51:30,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:30,237 INFO L225 Difference]: With dead ends: 216 [2020-07-21 12:51:30,237 INFO L226 Difference]: Without dead ends: 122 [2020-07-21 12:51:30,239 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 [2020-07-21 12:51:30,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-21 12:51:30,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2020-07-21 12:51:30,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2020-07-21 12:51:30,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 142 transitions. [2020-07-21 12:51:30,254 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 142 transitions. Word has length 52 [2020-07-21 12:51:30,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:30,255 INFO L479 AbstractCegarLoop]: Abstraction has 122 states and 142 transitions. [2020-07-21 12:51:30,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:30,255 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 142 transitions. [2020-07-21 12:51:30,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-21 12:51:30,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:30,258 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] [2020-07-21 12:51:30,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:30,472 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:30,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:30,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1748806687, now seen corresponding path program 1 times [2020-07-21 12:51:30,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:30,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [902161820] [2020-07-21 12:51:30,473 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:30,734 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:30,734 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:30,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:51:30,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:30,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:30,760 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:30,760 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [902161820] [2020-07-21 12:51:30,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:30,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:30,761 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705653328] [2020-07-21 12:51:30,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:30,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:30,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:30,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:30,763 INFO L87 Difference]: Start difference. First operand 122 states and 142 transitions. Second operand 3 states. [2020-07-21 12:51:30,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:30,790 INFO L93 Difference]: Finished difference Result 189 states and 219 transitions. [2020-07-21 12:51:30,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:30,794 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-21 12:51:30,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:30,797 INFO L225 Difference]: With dead ends: 189 [2020-07-21 12:51:30,797 INFO L226 Difference]: Without dead ends: 113 [2020-07-21 12:51:30,798 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:30,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2020-07-21 12:51:30,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2020-07-21 12:51:30,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2020-07-21 12:51:30,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2020-07-21 12:51:30,816 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 60 [2020-07-21 12:51:30,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:30,818 INFO L479 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2020-07-21 12:51:30,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:30,819 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2020-07-21 12:51:30,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-21 12:51:30,824 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:30,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:31,037 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:31,038 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:31,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:31,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1730792410, now seen corresponding path program 1 times [2020-07-21 12:51:31,040 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:31,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329018207] [2020-07-21 12:51:31,041 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:31,328 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:31,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:31,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 691 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:51:31,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:31,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:31,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:31,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329018207] [2020-07-21 12:51:31,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:31,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:31,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309764137] [2020-07-21 12:51:31,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:31,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:31,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:31,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:31,386 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 6 states. [2020-07-21 12:51:31,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:31,881 INFO L93 Difference]: Finished difference Result 254 states and 302 transitions. [2020-07-21 12:51:31,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:31,881 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-21 12:51:31,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:31,886 INFO L225 Difference]: With dead ends: 254 [2020-07-21 12:51:31,886 INFO L226 Difference]: Without dead ends: 169 [2020-07-21 12:51:31,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:51:31,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-07-21 12:51:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 166. [2020-07-21 12:51:31,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-07-21 12:51:31,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 190 transitions. [2020-07-21 12:51:31,925 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 190 transitions. Word has length 64 [2020-07-21 12:51:31,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:31,925 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 190 transitions. [2020-07-21 12:51:31,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:31,926 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 190 transitions. [2020-07-21 12:51:31,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-21 12:51:31,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:31,927 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:32,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:32,141 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:32,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:32,142 INFO L82 PathProgramCache]: Analyzing trace with hash 529777432, now seen corresponding path program 1 times [2020-07-21 12:51:32,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:32,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1600321760] [2020-07-21 12:51:32,143 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:32,392 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:32,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:32,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 12:51:32,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:32,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:32,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:32,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1600321760] [2020-07-21 12:51:32,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:32,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:32,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83772071] [2020-07-21 12:51:32,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:32,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:32,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:32,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:32,443 INFO L87 Difference]: Start difference. First operand 166 states and 190 transitions. Second operand 6 states. [2020-07-21 12:51:32,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:32,643 INFO L93 Difference]: Finished difference Result 429 states and 509 transitions. [2020-07-21 12:51:32,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:32,643 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2020-07-21 12:51:32,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:32,648 INFO L225 Difference]: With dead ends: 429 [2020-07-21 12:51:32,648 INFO L226 Difference]: Without dead ends: 291 [2020-07-21 12:51:32,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:32,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2020-07-21 12:51:32,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 287. [2020-07-21 12:51:32,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287 states. [2020-07-21 12:51:32,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 330 transitions. [2020-07-21 12:51:32,704 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 330 transitions. Word has length 78 [2020-07-21 12:51:32,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:32,706 INFO L479 AbstractCegarLoop]: Abstraction has 287 states and 330 transitions. [2020-07-21 12:51:32,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:32,707 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 330 transitions. [2020-07-21 12:51:32,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-21 12:51:32,708 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:32,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:32,909 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:32,910 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:32,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:32,911 INFO L82 PathProgramCache]: Analyzing trace with hash 281843316, now seen corresponding path program 1 times [2020-07-21 12:51:32,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:32,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1930606440] [2020-07-21 12:51:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:33,219 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:33,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:33,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:33,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:33,269 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:33,270 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:33,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1930606440] [2020-07-21 12:51:33,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:33,270 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:33,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254704071] [2020-07-21 12:51:33,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:33,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:33,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:33,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:33,273 INFO L87 Difference]: Start difference. First operand 287 states and 330 transitions. Second operand 6 states. [2020-07-21 12:51:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:33,495 INFO L93 Difference]: Finished difference Result 549 states and 637 transitions. [2020-07-21 12:51:33,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:33,496 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 82 [2020-07-21 12:51:33,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:33,499 INFO L225 Difference]: With dead ends: 549 [2020-07-21 12:51:33,499 INFO L226 Difference]: Without dead ends: 290 [2020-07-21 12:51:33,500 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:33,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2020-07-21 12:51:33,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 286. [2020-07-21 12:51:33,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-07-21 12:51:33,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 327 transitions. [2020-07-21 12:51:33,528 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 327 transitions. Word has length 82 [2020-07-21 12:51:33,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:33,528 INFO L479 AbstractCegarLoop]: Abstraction has 286 states and 327 transitions. [2020-07-21 12:51:33,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:33,529 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 327 transitions. [2020-07-21 12:51:33,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2020-07-21 12:51:33,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:33,533 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 12:51:33,746 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:33,747 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:33,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:33,747 INFO L82 PathProgramCache]: Analyzing trace with hash 131138833, now seen corresponding path program 1 times [2020-07-21 12:51:33,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:33,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [531901040] [2020-07-21 12:51:33,748 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:33,980 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:33,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:33,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:51:33,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:34,070 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:34,071 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:34,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [531901040] [2020-07-21 12:51:34,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:34,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:51:34,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049275073] [2020-07-21 12:51:34,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:51:34,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:34,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:51:34,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:34,073 INFO L87 Difference]: Start difference. First operand 286 states and 327 transitions. Second operand 8 states. [2020-07-21 12:51:34,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:34,293 INFO L93 Difference]: Finished difference Result 533 states and 617 transitions. [2020-07-21 12:51:34,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:51:34,294 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 98 [2020-07-21 12:51:34,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:34,297 INFO L225 Difference]: With dead ends: 533 [2020-07-21 12:51:34,297 INFO L226 Difference]: Without dead ends: 275 [2020-07-21 12:51:34,298 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 90 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:34,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2020-07-21 12:51:34,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 275. [2020-07-21 12:51:34,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-07-21 12:51:34,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 310 transitions. [2020-07-21 12:51:34,319 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 310 transitions. Word has length 98 [2020-07-21 12:51:34,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:34,319 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 310 transitions. [2020-07-21 12:51:34,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:51:34,319 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 310 transitions. [2020-07-21 12:51:34,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 12:51:34,322 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:34,322 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:34,532 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:34,533 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:34,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:34,534 INFO L82 PathProgramCache]: Analyzing trace with hash -553424369, now seen corresponding path program 1 times [2020-07-21 12:51:34,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:34,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555241148] [2020-07-21 12:51:34,535 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:34,807 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:34,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:34,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:34,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:34,858 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 12:51:34,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:34,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555241148] [2020-07-21 12:51:34,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:34,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:34,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485007682] [2020-07-21 12:51:34,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:34,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:34,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:34,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:34,862 INFO L87 Difference]: Start difference. First operand 275 states and 310 transitions. Second operand 6 states. [2020-07-21 12:51:34,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:34,903 INFO L93 Difference]: Finished difference Result 536 states and 614 transitions. [2020-07-21 12:51:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:51:34,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-07-21 12:51:34,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:34,906 INFO L225 Difference]: With dead ends: 536 [2020-07-21 12:51:34,906 INFO L226 Difference]: Without dead ends: 289 [2020-07-21 12:51:34,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:51:34,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2020-07-21 12:51:34,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 285. [2020-07-21 12:51:34,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 285 states. [2020-07-21 12:51:34,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 320 transitions. [2020-07-21 12:51:34,941 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 320 transitions. Word has length 133 [2020-07-21 12:51:34,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:34,941 INFO L479 AbstractCegarLoop]: Abstraction has 285 states and 320 transitions. [2020-07-21 12:51:34,941 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:34,941 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 320 transitions. [2020-07-21 12:51:34,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 12:51:34,943 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:34,943 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:35,150 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:35,150 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:35,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:35,151 INFO L82 PathProgramCache]: Analyzing trace with hash 771431825, now seen corresponding path program 1 times [2020-07-21 12:51:35,151 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:35,152 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [652854446] [2020-07-21 12:51:35,152 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:35,387 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:35,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:35,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 865 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:51:35,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:35,432 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 12:51:35,432 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:35,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [652854446] [2020-07-21 12:51:35,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:35,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:51:35,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305404914] [2020-07-21 12:51:35,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:51:35,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:35,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:51:35,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:51:35,434 INFO L87 Difference]: Start difference. First operand 285 states and 320 transitions. Second operand 5 states. [2020-07-21 12:51:35,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:35,467 INFO L93 Difference]: Finished difference Result 556 states and 636 transitions. [2020-07-21 12:51:35,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:51:35,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 133 [2020-07-21 12:51:35,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:35,470 INFO L225 Difference]: With dead ends: 556 [2020-07-21 12:51:35,471 INFO L226 Difference]: Without dead ends: 299 [2020-07-21 12:51:35,472 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:51:35,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2020-07-21 12:51:35,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 293. [2020-07-21 12:51:35,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 293 states. [2020-07-21 12:51:35,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 328 transitions. [2020-07-21 12:51:35,490 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 328 transitions. Word has length 133 [2020-07-21 12:51:35,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:35,490 INFO L479 AbstractCegarLoop]: Abstraction has 293 states and 328 transitions. [2020-07-21 12:51:35,490 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:51:35,491 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 328 transitions. [2020-07-21 12:51:35,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 12:51:35,493 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:35,493 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:35,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:35,708 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:35,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:35,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1669189934, now seen corresponding path program 1 times [2020-07-21 12:51:35,709 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:35,709 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947101896] [2020-07-21 12:51:35,710 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:35,893 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:51:35,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:35,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:51:35,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:35,944 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:51:35,945 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:35,945 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947101896] [2020-07-21 12:51:35,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:35,945 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:35,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812808472] [2020-07-21 12:51:35,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:35,946 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:35,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:35,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:35,947 INFO L87 Difference]: Start difference. First operand 293 states and 328 transitions. Second operand 6 states. [2020-07-21 12:51:36,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:36,542 INFO L93 Difference]: Finished difference Result 867 states and 1062 transitions. [2020-07-21 12:51:36,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:36,542 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-07-21 12:51:36,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:36,547 INFO L225 Difference]: With dead ends: 867 [2020-07-21 12:51:36,547 INFO L226 Difference]: Without dead ends: 602 [2020-07-21 12:51:36,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:51:36,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-21 12:51:36,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 575. [2020-07-21 12:51:36,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 575 states. [2020-07-21 12:51:36,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 673 transitions. [2020-07-21 12:51:36,585 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 673 transitions. Word has length 133 [2020-07-21 12:51:36,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:36,586 INFO L479 AbstractCegarLoop]: Abstraction has 575 states and 673 transitions. [2020-07-21 12:51:36,586 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:36,586 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 673 transitions. [2020-07-21 12:51:36,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 12:51:36,589 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:36,589 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:36,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:36,804 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:36,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:36,804 INFO L82 PathProgramCache]: Analyzing trace with hash 1654540536, now seen corresponding path program 1 times [2020-07-21 12:51:36,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:36,805 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1886106956] [2020-07-21 12:51:36,805 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:37,147 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:37,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:37,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:37,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:37,173 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:51:37,173 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:37,174 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1886106956] [2020-07-21 12:51:37,174 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:37,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:51:37,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901381923] [2020-07-21 12:51:37,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:51:37,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:37,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:51:37,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:37,175 INFO L87 Difference]: Start difference. First operand 575 states and 673 transitions. Second operand 3 states. [2020-07-21 12:51:37,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:37,223 INFO L93 Difference]: Finished difference Result 752 states and 902 transitions. [2020-07-21 12:51:37,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:51:37,224 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-21 12:51:37,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:37,230 INFO L225 Difference]: With dead ends: 752 [2020-07-21 12:51:37,230 INFO L226 Difference]: Without dead ends: 749 [2020-07-21 12:51:37,231 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:51:37,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2020-07-21 12:51:37,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 678. [2020-07-21 12:51:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 678 states. [2020-07-21 12:51:37,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 811 transitions. [2020-07-21 12:51:37,274 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 811 transitions. Word has length 137 [2020-07-21 12:51:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:37,276 INFO L479 AbstractCegarLoop]: Abstraction has 678 states and 811 transitions. [2020-07-21 12:51:37,276 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:51:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 811 transitions. [2020-07-21 12:51:37,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-21 12:51:37,281 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:37,282 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:37,496 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:37,497 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:37,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:37,497 INFO L82 PathProgramCache]: Analyzing trace with hash -402984640, now seen corresponding path program 1 times [2020-07-21 12:51:37,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:37,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000314349] [2020-07-21 12:51:37,498 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 [2020-07-21 12:51:37,832 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:37,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 12:51:37,832 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:51:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 12:51:37,938 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 12:51:38,243 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 12:51:38,243 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 12:51:38,450 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:38,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:51:38 BoogieIcfgContainer [2020-07-21 12:51:38,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:51:38,706 INFO L168 Benchmark]: Toolchain (without parser) took 11655.86 ms. Allocated memory was 139.5 MB in the beginning and 341.3 MB in the end (delta: 201.9 MB). Free memory was 102.4 MB in the beginning and 250.7 MB in the end (delta: -148.3 MB). Peak memory consumption was 217.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:38,707 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:51:38,708 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.38 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 173.4 MB in the end (delta: -71.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:38,708 INFO L168 Benchmark]: Boogie Preprocessor took 83.29 ms. Allocated memory is still 204.5 MB. Free memory was 173.4 MB in the beginning and 168.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:38,709 INFO L168 Benchmark]: RCFGBuilder took 1113.33 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 196.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:38,710 INFO L168 Benchmark]: TraceAbstraction took 9888.69 ms. Allocated memory was 236.5 MB in the beginning and 341.3 MB in the end (delta: 104.9 MB). Free memory was 196.0 MB in the beginning and 250.7 MB in the end (delta: -54.7 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:38,714 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 139.5 MB. Free memory was 121.3 MB in the beginning and 121.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 565.38 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 173.4 MB in the end (delta: -71.5 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.29 ms. Allocated memory is still 204.5 MB. Free memory was 173.4 MB in the beginning and 168.5 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1113.33 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 168.5 MB in the beginning and 196.0 MB in the end (delta: -27.6 MB). Peak memory consumption was 82.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9888.69 ms. Allocated memory was 236.5 MB in the beginning and 341.3 MB in the end (delta: 104.9 MB). Free memory was 196.0 MB in the beginning and 250.7 MB in the end (delta: -54.7 MB). Peak memory consumption was 214.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 830]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L43] int methAndRunningLastTime ; [L251] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L455] int pumpRunning = 0; [L456] int systemActive = 1; [L628] int waterLevel = 1; [L629] int methaneLevelCritical = 0; [L835] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=94, \old(head)=34, \old(head)=59, \old(methAndRunningLastTime)=76, \old(methaneLevelCritical)=45, \old(pumpRunning)=56, \old(systemActive)=95, \old(waterLevel)=60, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L909] int retValue_acc ; [L910] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L914] FCALL select_helpers() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L915] FCALL select_features() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L916] CALL, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L820] retValue_acc = 1 [L821] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L916] RET, EXPR valid_product() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L916] tmp = valid_product() [L918] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L920] FCALL setup() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L921] CALL runTest() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] CALL __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L48] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L902] RET __utac_acc__Specification2_spec__1() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L903] CALL test() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L724] int splverifierCounter ; [L725] int tmp ; [L726] int tmp___0 ; [L727] int tmp___1 ; [L728] int tmp___2 ; [L731] splverifierCounter = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L745] CALL waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L646] COND TRUE waterLevel < 2 [L647] waterLevel = waterLevel + 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L745] RET waterRise() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L462] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L494] COND TRUE ! pumpRunning VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] CALL, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L606] int retValue_acc ; [L607] int tmp ; [L608] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] CALL, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L708] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L711] COND FALSE !(waterLevel < 2) [L715] retValue_acc = 0 [L716] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L612] RET, EXPR isHighWaterSensorDry() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L612] tmp = isHighWaterSensorDry() [L614] COND FALSE !(\read(tmp)) [L617] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L619] retValue_acc = tmp___0 [L620] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L496] RET, EXPR isHighWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L496] tmp = isHighWaterLevel() [L498] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L500] CALL activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] CALL, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L550] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L554] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L554] retValue_acc = isMethaneLevelCritical() [L556] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L529] RET, EXPR isMethaneAlarm() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L529] tmp = isMethaneAlarm() [L531] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L535] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L535] RET activatePump__wrappee__highWaterSensor() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L500] RET activatePump() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L58] tmp = isMethaneLevelCritical() [L60] COND FALSE !(\read(tmp)) [L76] methAndRunningLastTime = 0 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___2=1, waterLevel=2] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L755] CALL changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L658] COND FALSE !(\read(methaneLevelCritical)) [L661] methaneLevelCritical = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L755] RET changeMethaneLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=2] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L65] COND FALSE !(\read(methAndRunningLastTime)) [L70] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L477] RET __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L776] RET timeShift() VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=1] [L733] COND TRUE 1 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=1] [L735] COND TRUE splverifierCounter < 4 VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=1] [L741] tmp = __VERIFIER_nondet_int() [L743] COND FALSE !(\read(tmp)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=-1, waterLevel=1] [L751] tmp___0 = __VERIFIER_nondet_int() [L753] COND FALSE !(\read(tmp___0)) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L761] tmp___2 = __VERIFIER_nondet_int() [L763] COND TRUE \read(tmp___2) VAL [\old(methAndRunningLastTime)=0, \old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L776] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L462] COND TRUE \read(pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L464] CALL lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L634] COND TRUE waterLevel > 0 [L635] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L464] RET lowerWaterLevel() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L469] COND TRUE \read(systemActive) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] CALL processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L491] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L494] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L509] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L471] RET processEnvironment() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L477] CALL __utac_acc__Specification2_spec__2() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L53] int tmp ; [L54] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L667] int retValue_acc ; [L670] retValue_acc = methaneLevelCritical [L671] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L58] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L58] tmp = isMethaneLevelCritical() [L60] COND TRUE \read(tmp) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] CALL, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L561] int retValue_acc ; [L564] retValue_acc = pumpRunning [L565] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L62] RET, EXPR isPumpRunning() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=0] [L62] tmp___0 = isPumpRunning() [L64] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L65] COND TRUE \read(methAndRunningLastTime) VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=0] [L67] CALL __automaton_fail() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] [L830] __VERIFIER_error() VAL [\old(methAndRunningLastTime)=1, \old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 9.5s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1647 SDtfs, 849 SDslu, 2595 SDs, 0 SdLazy, 1005 SolverSat, 266 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1019 GetRequests, 979 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=678occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 119 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 1200 NumberOfCodeBlocks, 1134 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 1010 ConstructedInterpolants, 0 QuantifiedInterpolants, 175439 SizeOfPredicates, 22 NumberOfNonLiveVariables, 8300 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 123/123 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...