/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 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 13:03:44,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 13:03:44,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 13:03:44,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 13:03:44,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 13:03:44,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 13:03:44,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 13:03:44,708 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 13:03:44,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 13:03:44,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 13:03:44,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 13:03:44,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 13:03:44,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 13:03:44,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 13:03:44,721 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 13:03:44,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 13:03:44,724 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 13:03:44,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 13:03:44,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 13:03:44,731 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 13:03:44,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 13:03:44,738 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 13:03:44,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 13:03:44,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 13:03:44,742 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 13:03:44,742 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 13:03:44,743 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 13:03:44,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 13:03:44,745 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 13:03:44,746 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 13:03:44,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 13:03:44,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 13:03:44,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 13:03:44,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 13:03:44,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 13:03:44,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 13:03:44,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 13:03:44,751 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 13:03:44,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 13:03:44,752 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 13:03:44,753 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 13:03:44,754 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 13:03:44,786 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 13:03:44,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 13:03:44,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 13:03:44,790 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 13:03:44,790 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 13:03:44,791 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 13:03:44,791 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 13:03:44,791 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 13:03:44,791 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 13:03:44,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 13:03:44,792 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 13:03:44,792 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 13:03:44,792 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 13:03:44,792 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 13:03:44,792 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 13:03:44,792 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 13:03:44,793 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 13:03:44,793 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 13:03:44,793 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 13:03:44,794 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 13:03:44,794 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 13:03:44,795 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:03:44,795 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 13:03:44,795 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 13:03:44,795 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 13:03:44,796 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 13:03:44,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:44,796 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 13:03:44,796 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 13:03:44,796 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 -> 4 [2020-07-20 13:03:45,060 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 13:03:45,073 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 13:03:45,077 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 13:03:45,078 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 13:03:45,079 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 13:03:45,079 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-07-20 13:03:45,138 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3f61b37/bcfeb860d0d64096aba6e1bab7a836c3/FLAGce6d50b53 [2020-07-20 13:03:45,585 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 13:03:45,586 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product47.cil.c [2020-07-20 13:03:45,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3f61b37/bcfeb860d0d64096aba6e1bab7a836c3/FLAGce6d50b53 [2020-07-20 13:03:45,949 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f3f61b37/bcfeb860d0d64096aba6e1bab7a836c3 [2020-07-20 13:03:45,958 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 13:03:45,961 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 13:03:45,962 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 13:03:45,962 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 13:03:45,966 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 13:03:45,967 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:45" (1/1) ... [2020-07-20 13:03:45,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40fb56e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:45, skipping insertion in model container [2020-07-20 13:03:45,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:03:45" (1/1) ... [2020-07-20 13:03:45,977 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 13:03:46,016 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 13:03:46,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:03:46,505 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 13:03:46,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 13:03:46,623 INFO L208 MainTranslator]: Completed translation [2020-07-20 13:03:46,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46 WrapperNode [2020-07-20 13:03:46,624 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 13:03:46,624 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 13:03:46,625 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 13:03:46,625 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 13:03:46,637 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,698 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... [2020-07-20 13:03:46,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 13:03:46,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 13:03:46,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 13:03:46,711 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 13:03:46,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 13:03:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 13:03:46,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 13:03:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 13:03:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 13:03:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 13:03:46,772 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 13:03:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 13:03:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 13:03:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 13:03:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 13:03:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 13:03:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 13:03:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 13:03:46,774 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 13:03:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 13:03:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 13:03:46,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 13:03:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 13:03:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 13:03:46,776 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 13:03:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 13:03:46,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 13:03:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 13:03:46,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 13:03:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 13:03:46,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 13:03:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 13:03:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-20 13:03:46,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 13:03:46,782 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 13:03:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 13:03:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 13:03:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 13:03:46,783 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 13:03:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 13:03:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 13:03:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 13:03:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 13:03:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 13:03:46,783 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 13:03:46,784 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 13:03:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 13:03:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 13:03:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 13:03:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 13:03:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 13:03:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 13:03:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 13:03:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 13:03:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 13:03:46,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 13:03:46,789 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 13:03:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 13:03:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 13:03:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 13:03:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 13:03:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 13:03:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 13:03:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 13:03:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 13:03:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 13:03:47,771 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 13:03:47,772 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 13:03:47,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:03:47 BoogieIcfgContainer [2020-07-20 13:03:47,777 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 13:03:47,778 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 13:03:47,778 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 13:03:47,781 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 13:03:47,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:03:45" (1/3) ... [2020-07-20 13:03:47,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cd5f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:03:47, skipping insertion in model container [2020-07-20 13:03:47,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:03:46" (2/3) ... [2020-07-20 13:03:47,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16cd5f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:03:47, skipping insertion in model container [2020-07-20 13:03:47,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:03:47" (3/3) ... [2020-07-20 13:03:47,785 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product47.cil.c [2020-07-20 13:03:47,795 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 13:03:47,801 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 13:03:47,813 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 13:03:47,834 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 13:03:47,834 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 13:03:47,834 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 13:03:47,834 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 13:03:47,835 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 13:03:47,835 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 13:03:47,835 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 13:03:47,835 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 13:03:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states. [2020-07-20 13:03:47,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 13:03:47,864 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:47,865 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:47,865 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:47,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:47,870 INFO L82 PathProgramCache]: Analyzing trace with hash -2007114508, now seen corresponding path program 1 times [2020-07-20 13:03:47,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:47,877 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [135489688] [2020-07-20 13:03:47,877 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:48,365 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:48,366 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:48,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 13:03:48,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:48,429 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:48,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:48,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [135489688] [2020-07-20 13:03:48,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:48,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 13:03:48,433 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843342492] [2020-07-20 13:03:48,440 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 13:03:48,440 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:48,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 13:03:48,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:03:48,458 INFO L87 Difference]: Start difference. First operand 182 states. Second operand 2 states. [2020-07-20 13:03:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:48,537 INFO L93 Difference]: Finished difference Result 278 states and 345 transitions. [2020-07-20 13:03:48,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 13:03:48,538 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 13:03:48,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:48,553 INFO L225 Difference]: With dead ends: 278 [2020-07-20 13:03:48,554 INFO L226 Difference]: Without dead ends: 139 [2020-07-20 13:03:48,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 13:03:48,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-20 13:03:48,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2020-07-20 13:03:48,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139 states. [2020-07-20 13:03:48,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 164 transitions. [2020-07-20 13:03:48,614 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 164 transitions. Word has length 46 [2020-07-20 13:03:48,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:48,615 INFO L479 AbstractCegarLoop]: Abstraction has 139 states and 164 transitions. [2020-07-20 13:03:48,615 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 13:03:48,615 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 164 transitions. [2020-07-20 13:03:48,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 13:03:48,619 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:48,619 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:48,832 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:48,833 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:48,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:48,833 INFO L82 PathProgramCache]: Analyzing trace with hash 622418136, now seen corresponding path program 1 times [2020-07-20 13:03:48,834 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:48,834 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1131155920] [2020-07-20 13:03:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:49,208 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:49,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:49,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 13:03:49,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:49,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:49,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:49,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1131155920] [2020-07-20 13:03:49,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:49,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:49,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407070175] [2020-07-20 13:03:49,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:49,248 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:49,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:49,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:49,249 INFO L87 Difference]: Start difference. First operand 139 states and 164 transitions. Second operand 3 states. [2020-07-20 13:03:49,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:49,269 INFO L93 Difference]: Finished difference Result 221 states and 259 transitions. [2020-07-20 13:03:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:49,270 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 13:03:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:49,272 INFO L225 Difference]: With dead ends: 221 [2020-07-20 13:03:49,272 INFO L226 Difference]: Without dead ends: 130 [2020-07-20 13:03:49,274 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:49,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-07-20 13:03:49,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-07-20 13:03:49,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-07-20 13:03:49,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 152 transitions. [2020-07-20 13:03:49,289 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 152 transitions. Word has length 47 [2020-07-20 13:03:49,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:49,289 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 152 transitions. [2020-07-20 13:03:49,289 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:49,289 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 152 transitions. [2020-07-20 13:03:49,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 13:03:49,292 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:49,292 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:49,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:49,506 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:49,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:49,507 INFO L82 PathProgramCache]: Analyzing trace with hash -943300313, now seen corresponding path program 1 times [2020-07-20 13:03:49,507 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:49,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1397535223] [2020-07-20 13:03:49,509 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:49,900 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:49,901 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:49,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 13:03:49,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:49,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:49,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:49,933 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1397535223] [2020-07-20 13:03:49,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:49,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:49,934 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110591209] [2020-07-20 13:03:49,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:49,934 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:49,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:49,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:49,935 INFO L87 Difference]: Start difference. First operand 130 states and 152 transitions. Second operand 3 states. [2020-07-20 13:03:49,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:49,964 INFO L93 Difference]: Finished difference Result 340 states and 408 transitions. [2020-07-20 13:03:49,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:49,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 13:03:49,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:49,969 INFO L225 Difference]: With dead ends: 340 [2020-07-20 13:03:49,969 INFO L226 Difference]: Without dead ends: 234 [2020-07-20 13:03:49,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:49,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2020-07-20 13:03:49,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 230. [2020-07-20 13:03:49,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-07-20 13:03:50,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 275 transitions. [2020-07-20 13:03:50,000 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 275 transitions. Word has length 51 [2020-07-20 13:03:50,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:50,000 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 275 transitions. [2020-07-20 13:03:50,001 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:50,001 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 275 transitions. [2020-07-20 13:03:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-20 13:03:50,003 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:50,004 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:50,216 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:50,217 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:50,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:50,218 INFO L82 PathProgramCache]: Analyzing trace with hash -1373874698, now seen corresponding path program 1 times [2020-07-20 13:03:50,218 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:50,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697932566] [2020-07-20 13:03:50,220 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:50,587 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:50,588 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:50,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 13:03:50,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:50,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:50,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1697932566] [2020-07-20 13:03:50,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:50,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:50,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326419241] [2020-07-20 13:03:50,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:50,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:50,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:50,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:50,648 INFO L87 Difference]: Start difference. First operand 230 states and 275 transitions. Second operand 6 states. [2020-07-20 13:03:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:50,897 INFO L93 Difference]: Finished difference Result 623 states and 783 transitions. [2020-07-20 13:03:50,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:03:50,897 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-20 13:03:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:50,902 INFO L225 Difference]: With dead ends: 623 [2020-07-20 13:03:50,902 INFO L226 Difference]: Without dead ends: 417 [2020-07-20 13:03:50,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:03:50,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2020-07-20 13:03:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 417. [2020-07-20 13:03:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-20 13:03:50,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 520 transitions. [2020-07-20 13:03:50,968 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 520 transitions. Word has length 57 [2020-07-20 13:03:50,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:50,969 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 520 transitions. [2020-07-20 13:03:50,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:50,969 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 520 transitions. [2020-07-20 13:03:50,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 13:03:50,975 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:50,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:51,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:51,193 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:51,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:51,194 INFO L82 PathProgramCache]: Analyzing trace with hash -1561170436, now seen corresponding path program 1 times [2020-07-20 13:03:51,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:51,195 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [647499036] [2020-07-20 13:03:51,195 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:51,547 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:51,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:51,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 13:03:51,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:51,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:51,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:51,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [647499036] [2020-07-20 13:03:51,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:51,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:51,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872613623] [2020-07-20 13:03:51,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:51,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:51,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:51,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:51,608 INFO L87 Difference]: Start difference. First operand 417 states and 520 transitions. Second operand 3 states. [2020-07-20 13:03:51,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:51,669 INFO L93 Difference]: Finished difference Result 1001 states and 1303 transitions. [2020-07-20 13:03:51,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:51,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-20 13:03:51,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:51,674 INFO L225 Difference]: With dead ends: 1001 [2020-07-20 13:03:51,674 INFO L226 Difference]: Without dead ends: 608 [2020-07-20 13:03:51,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:51,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-20 13:03:51,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 595. [2020-07-20 13:03:51,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2020-07-20 13:03:51,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 743 transitions. [2020-07-20 13:03:51,713 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 743 transitions. Word has length 61 [2020-07-20 13:03:51,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:51,714 INFO L479 AbstractCegarLoop]: Abstraction has 595 states and 743 transitions. [2020-07-20 13:03:51,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:51,714 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 743 transitions. [2020-07-20 13:03:51,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2020-07-20 13:03:51,717 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:51,717 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 13:03:51,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:51,931 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:51,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:51,932 INFO L82 PathProgramCache]: Analyzing trace with hash -2114102273, now seen corresponding path program 1 times [2020-07-20 13:03:51,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:51,933 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521610903] [2020-07-20 13:03:51,934 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:52,164 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:03:52,165 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:52,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 716 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-20 13:03:52,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:52,200 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-20 13:03:52,200 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:52,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521610903] [2020-07-20 13:03:52,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:52,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 13:03:52,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528288404] [2020-07-20 13:03:52,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 13:03:52,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:52,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 13:03:52,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:52,203 INFO L87 Difference]: Start difference. First operand 595 states and 743 transitions. Second operand 3 states. [2020-07-20 13:03:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:52,267 INFO L93 Difference]: Finished difference Result 693 states and 866 transitions. [2020-07-20 13:03:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 13:03:52,268 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 127 [2020-07-20 13:03:52,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:52,271 INFO L225 Difference]: With dead ends: 693 [2020-07-20 13:03:52,272 INFO L226 Difference]: Without dead ends: 352 [2020-07-20 13:03:52,278 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 13:03:52,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-07-20 13:03:52,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 346. [2020-07-20 13:03:52,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 346 states. [2020-07-20 13:03:52,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 422 transitions. [2020-07-20 13:03:52,297 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 422 transitions. Word has length 127 [2020-07-20 13:03:52,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:52,298 INFO L479 AbstractCegarLoop]: Abstraction has 346 states and 422 transitions. [2020-07-20 13:03:52,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 13:03:52,298 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 422 transitions. [2020-07-20 13:03:52,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 13:03:52,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:52,303 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:52,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:52,517 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:52,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:52,518 INFO L82 PathProgramCache]: Analyzing trace with hash 1992976932, now seen corresponding path program 1 times [2020-07-20 13:03:52,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:52,519 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [358036307] [2020-07-20 13:03:52,519 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:52,890 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:52,891 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:52,896 INFO L263 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:03:52,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:52,952 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 13:03:52,953 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:52,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [358036307] [2020-07-20 13:03:52,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:52,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:52,954 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069282127] [2020-07-20 13:03:52,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:52,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:52,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:52,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:52,956 INFO L87 Difference]: Start difference. First operand 346 states and 422 transitions. Second operand 6 states. [2020-07-20 13:03:53,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:53,014 INFO L93 Difference]: Finished difference Result 682 states and 874 transitions. [2020-07-20 13:03:53,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 13:03:53,015 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2020-07-20 13:03:53,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:53,020 INFO L225 Difference]: With dead ends: 682 [2020-07-20 13:03:53,020 INFO L226 Difference]: Without dead ends: 360 [2020-07-20 13:03:53,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:03:53,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-07-20 13:03:53,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 356. [2020-07-20 13:03:53,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 356 states. [2020-07-20 13:03:53,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 433 transitions. [2020-07-20 13:03:53,042 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 433 transitions. Word has length 141 [2020-07-20 13:03:53,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:53,042 INFO L479 AbstractCegarLoop]: Abstraction has 356 states and 433 transitions. [2020-07-20 13:03:53,043 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:53,043 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 433 transitions. [2020-07-20 13:03:53,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 13:03:53,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:53,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:53,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:53,262 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:53,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:53,263 INFO L82 PathProgramCache]: Analyzing trace with hash 1964476642, now seen corresponding path program 1 times [2020-07-20 13:03:53,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:53,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171662427] [2020-07-20 13:03:53,264 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:53,610 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 13:03:53,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:53,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 794 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 13:03:53,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:53,658 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-20 13:03:53,658 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:53,659 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171662427] [2020-07-20 13:03:53,659 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:53,659 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 13:03:53,659 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944686442] [2020-07-20 13:03:53,660 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 13:03:53,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:53,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 13:03:53,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:03:53,661 INFO L87 Difference]: Start difference. First operand 356 states and 433 transitions. Second operand 5 states. [2020-07-20 13:03:53,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:53,684 INFO L93 Difference]: Finished difference Result 669 states and 843 transitions. [2020-07-20 13:03:53,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 13:03:53,685 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 13:03:53,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:53,687 INFO L225 Difference]: With dead ends: 669 [2020-07-20 13:03:53,688 INFO L226 Difference]: Without dead ends: 337 [2020-07-20 13:03:53,689 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 13:03:53,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-20 13:03:53,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 337. [2020-07-20 13:03:53,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-07-20 13:03:53,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 408 transitions. [2020-07-20 13:03:53,704 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 408 transitions. Word has length 141 [2020-07-20 13:03:53,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:53,704 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 408 transitions. [2020-07-20 13:03:53,705 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 13:03:53,705 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 408 transitions. [2020-07-20 13:03:53,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 13:03:53,707 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:53,707 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:53,922 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:53,923 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:53,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:53,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1436111041, now seen corresponding path program 1 times [2020-07-20 13:03:53,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:53,925 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [474896200] [2020-07-20 13:03:53,925 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:54,183 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 13:03:54,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:54,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 13:03:54,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:54,243 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:54,243 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:54,243 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [474896200] [2020-07-20 13:03:54,244 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:54,244 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:54,244 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16441811] [2020-07-20 13:03:54,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:54,245 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:54,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:54,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:54,245 INFO L87 Difference]: Start difference. First operand 337 states and 408 transitions. Second operand 6 states. [2020-07-20 13:03:54,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:54,953 INFO L93 Difference]: Finished difference Result 901 states and 1158 transitions. [2020-07-20 13:03:54,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:03:54,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2020-07-20 13:03:54,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:54,957 INFO L225 Difference]: With dead ends: 901 [2020-07-20 13:03:54,958 INFO L226 Difference]: Without dead ends: 588 [2020-07-20 13:03:54,959 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 13:03:54,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-07-20 13:03:54,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 571. [2020-07-20 13:03:54,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 571 states. [2020-07-20 13:03:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 571 states and 703 transitions. [2020-07-20 13:03:55,014 INFO L78 Accepts]: Start accepts. Automaton has 571 states and 703 transitions. Word has length 141 [2020-07-20 13:03:55,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:55,014 INFO L479 AbstractCegarLoop]: Abstraction has 571 states and 703 transitions. [2020-07-20 13:03:55,014 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 571 states and 703 transitions. [2020-07-20 13:03:55,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 13:03:55,017 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:55,018 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:55,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:55,218 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:55,219 INFO L82 PathProgramCache]: Analyzing trace with hash -872576729, now seen corresponding path program 1 times [2020-07-20 13:03:55,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:55,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1624178525] [2020-07-20 13:03:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:55,534 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:55,535 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:55,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 876 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:03:55,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 13:03:55,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 13:03:55,985 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 13:03:55,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1624178525] [2020-07-20 13:03:55,986 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 13:03:55,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-20 13:03:55,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361029004] [2020-07-20 13:03:55,987 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 13:03:55,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:55,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 13:03:55,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-20 13:03:55,988 INFO L87 Difference]: Start difference. First operand 571 states and 703 transitions. Second operand 12 states. [2020-07-20 13:03:57,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:57,394 INFO L93 Difference]: Finished difference Result 1591 states and 2129 transitions. [2020-07-20 13:03:57,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 13:03:57,395 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 145 [2020-07-20 13:03:57,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:57,403 INFO L225 Difference]: With dead ends: 1591 [2020-07-20 13:03:57,406 INFO L226 Difference]: Without dead ends: 890 [2020-07-20 13:03:57,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 278 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-20 13:03:57,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 890 states. [2020-07-20 13:03:57,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 890 to 733. [2020-07-20 13:03:57,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 733 states. [2020-07-20 13:03:57,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 733 states to 733 states and 904 transitions. [2020-07-20 13:03:57,455 INFO L78 Accepts]: Start accepts. Automaton has 733 states and 904 transitions. Word has length 145 [2020-07-20 13:03:57,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:57,455 INFO L479 AbstractCegarLoop]: Abstraction has 733 states and 904 transitions. [2020-07-20 13:03:57,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 13:03:57,456 INFO L276 IsEmpty]: Start isEmpty. Operand 733 states and 904 transitions. [2020-07-20 13:03:57,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-07-20 13:03:57,459 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:57,459 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:57,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:57,669 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:57,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:57,670 INFO L82 PathProgramCache]: Analyzing trace with hash -555097458, now seen corresponding path program 1 times [2020-07-20 13:03:57,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:57,671 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1417138806] [2020-07-20 13:03:57,672 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:58,062 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:58,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 13:03:58,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 13:03:58,072 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 13:03:58,116 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-07-20 13:03:58,117 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 13:03:58,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1417138806] [2020-07-20 13:03:58,117 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 13:03:58,118 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 13:03:58,118 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663585174] [2020-07-20 13:03:58,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 13:03:58,119 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 13:03:58,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 13:03:58,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 13:03:58,119 INFO L87 Difference]: Start difference. First operand 733 states and 904 transitions. Second operand 6 states. [2020-07-20 13:03:58,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 13:03:58,349 INFO L93 Difference]: Finished difference Result 748 states and 920 transitions. [2020-07-20 13:03:58,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 13:03:58,350 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 196 [2020-07-20 13:03:58,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 13:03:58,353 INFO L225 Difference]: With dead ends: 748 [2020-07-20 13:03:58,353 INFO L226 Difference]: Without dead ends: 653 [2020-07-20 13:03:58,354 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 13:03:58,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2020-07-20 13:03:58,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 645. [2020-07-20 13:03:58,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 645 states. [2020-07-20 13:03:58,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 790 transitions. [2020-07-20 13:03:58,386 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 790 transitions. Word has length 196 [2020-07-20 13:03:58,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 13:03:58,387 INFO L479 AbstractCegarLoop]: Abstraction has 645 states and 790 transitions. [2020-07-20 13:03:58,387 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 13:03:58,387 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 790 transitions. [2020-07-20 13:03:58,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2020-07-20 13:03:58,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 13:03:58,391 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 13:03:58,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:58,606 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 13:03:58,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 13:03:58,606 INFO L82 PathProgramCache]: Analyzing trace with hash 530830242, now seen corresponding path program 1 times [2020-07-20 13:03:58,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 13:03:58,606 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1750631667] [2020-07-20 13:03:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:59,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 13:03:59,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-20 13:03:59,006 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:03:59,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 13:03:59,100 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 13:03:59,475 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-20 13:03:59,476 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 13:03:59,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 13:03:59,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:03:59 BoogieIcfgContainer [2020-07-20 13:03:59,885 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 13:03:59,888 INFO L168 Benchmark]: Toolchain (without parser) took 13927.33 ms. Allocated memory was 137.9 MB in the beginning and 388.0 MB in the end (delta: 250.1 MB). Free memory was 100.3 MB in the beginning and 267.8 MB in the end (delta: -167.5 MB). Peak memory consumption was 229.5 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:59,888 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 13:03:59,889 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.95 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.1 MB in the beginning and 170.6 MB in the end (delta: -70.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:59,890 INFO L168 Benchmark]: Boogie Preprocessor took 86.35 ms. Allocated memory is still 202.9 MB. Free memory was 170.6 MB in the beginning and 165.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:59,891 INFO L168 Benchmark]: RCFGBuilder took 1065.85 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.8 MB in the beginning and 196.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:59,891 INFO L168 Benchmark]: TraceAbstraction took 12107.24 ms. Allocated memory was 235.4 MB in the beginning and 388.0 MB in the end (delta: 152.6 MB). Free memory was 196.1 MB in the beginning and 267.8 MB in the end (delta: -71.7 MB). Peak memory consumption was 227.9 MB. Max. memory is 7.1 GB. [2020-07-20 13:03:59,894 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.95 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 100.1 MB in the beginning and 170.6 MB in the end (delta: -70.5 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.35 ms. Allocated memory is still 202.9 MB. Free memory was 170.6 MB in the beginning and 165.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1065.85 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 165.8 MB in the beginning and 196.1 MB in the end (delta: -30.3 MB). Peak memory consumption was 83.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12107.24 ms. Allocated memory was 235.4 MB in the beginning and 388.0 MB in the end (delta: 152.6 MB). Free memory was 196.1 MB in the beginning and 267.8 MB in the end (delta: -71.7 MB). Peak memory consumption was 227.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 828]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L40] int cleanupTimeShifts = 4; [L219] int pumpRunning = 0; [L220] int systemActive = 1; [L599] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L868] int waterLevel = 1; [L869] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=106, \old(head)=51, \old(head)=38, \old(methaneLevelCritical)=65, \old(pumpRunning)=49, \old(systemActive)=52, \old(waterLevel)=40, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L121] int retValue_acc ; [L122] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L126] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L127] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L128] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] int retValue_acc ; [L862] retValue_acc = 1 [L863] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L128] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L128] tmp = valid_product() [L130] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L132] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L133] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L112] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L146] int splverifierCounter ; [L147] int tmp ; [L148] int tmp___0 ; [L149] int tmp___1 ; [L150] int tmp___2 ; [L153] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L155] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L157] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L163] tmp = __VERIFIER_nondet_int() [L165] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L167] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L886] COND TRUE waterLevel < 2 [L887] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L167] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L200] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L227] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L234] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L236] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L282] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L285] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L300] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L256] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L259] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L261] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L396] int retValue_acc ; [L397] int tmp ; [L398] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L402] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L948] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L951] COND FALSE !(waterLevel < 2) [L955] retValue_acc = 0 [L956] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L402] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L402] tmp = isHighWaterSensorDry() [L404] COND FALSE !(\read(tmp)) [L407] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L409] retValue_acc = tmp___0 [L410] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L261] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L261] tmp = isHighWaterLevel() [L263] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L265] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L315] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L319] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L340] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L344] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L344] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L319] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L319] tmp = isMethaneAlarm() [L321] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L325] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L310] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L325] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L265] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L300] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L236] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L242] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L799] int tmp ; [L800] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L804] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=2, systemActive=1, waterLevel=2] [L804] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=2, waterLevel=2] [L242] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L200] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L155] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L157] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L163] tmp = __VERIFIER_nondet_int() [L165] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=2] [L200] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L227] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L229] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L234] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L236] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L282] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L285] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L287] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L340] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L344] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L344] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=1] [L287] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L295] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L256] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L259] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L274] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L295] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=1] [L236] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L242] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L799] int tmp ; [L800] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L804] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L804] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=1, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L804] tmp = getWaterLevel() [L806] COND FALSE !(tmp == 0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L242] RET __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L200] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L155] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L157] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L163] tmp = __VERIFIER_nondet_int() [L165] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L173] tmp___0 = __VERIFIER_nondet_int() [L175] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L183] tmp___2 = __VERIFIER_nondet_int() [L185] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=-1, waterLevel=1] [L200] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L227] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L229] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=1] [L874] COND TRUE waterLevel > 0 [L875] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L229] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L234] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L236] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L282] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L285] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L287] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L340] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L344] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L907] int retValue_acc ; [L910] retValue_acc = methaneLevelCritical [L911] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L344] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L344] retValue_acc = isMethaneLevelCritical() [L346] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L287] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L287] tmp = isMethaneAlarm() [L289] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L295] CALL processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L256] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L259] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L274] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L295] RET processEnvironment__wrappee__methaneQuery() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L236] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L242] CALL __utac_acc__Specification4_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L799] int tmp ; [L800] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L804] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L939] int retValue_acc ; [L942] retValue_acc = waterLevel [L943] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=0] [L804] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, getWaterLevel()=0, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L804] tmp = getWaterLevel() [L806] COND TRUE tmp == 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L808] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L351] int retValue_acc ; [L354] retValue_acc = pumpRunning [L355] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=0] [L808] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=0] [L808] tmp___0 = isPumpRunning() [L810] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=0] [L812] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] [L828] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 238 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.8s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1903 SDtfs, 1090 SDslu, 3060 SDs, 0 SdLazy, 1647 SolverSat, 409 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1311 GetRequests, 1255 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=733occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 11 MinimizatonAttempts, 209 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1353 NumberOfCodeBlocks, 1121 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1286 ConstructedInterpolants, 0 QuantifiedInterpolants, 254410 SizeOfPredicates, 32 NumberOfNonLiveVariables, 8158 ConjunctsInSsa, 83 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 269/290 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...