/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:53:21,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:53:21,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:53:21,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:53:21,726 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:53:21,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:53:21,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:53:21,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:53:21,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:53:21,746 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:53:21,747 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:53:21,748 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:53:21,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:53:21,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:53:21,755 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:53:21,756 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:53:21,757 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:53:21,758 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:53:21,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:53:21,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:53:21,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:53:21,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:53:21,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:53:21,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:53:21,780 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:53:21,780 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:53:21,781 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:53:21,783 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:53:21,784 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:53:21,786 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:53:21,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:53:21,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:53:21,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:53:21,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:53:21,795 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:53:21,795 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:53:21,796 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:53:21,796 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:53:21,796 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:53:21,797 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:53:21,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:53:21,800 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:53:21,821 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:53:21,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:53:21,823 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:53:21,823 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:53:21,823 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:53:21,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:53:21,824 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:53:21,824 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:53:21,824 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:53:21,824 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:53:21,824 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:53:21,825 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:53:21,825 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:53:21,825 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:53:21,825 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:53:21,825 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:53:21,826 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:53:21,826 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:53:21,826 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:53:21,826 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:53:21,826 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:53:21,827 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:53:21,827 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:53:21,827 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:53:21,827 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:53:21,828 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:53:21,828 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:21,828 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:53:21,828 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:53:21,828 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:53:22,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:53:22,098 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:53:22,101 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:53:22,102 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:53:22,102 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:53:22,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-07-21 12:53:22,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0258e711/bc7a2c5c73184c21a97799265aed3bd6/FLAG317efe915 [2020-07-21 12:53:22,660 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:53:22,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product51.cil.c [2020-07-21 12:53:22,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0258e711/bc7a2c5c73184c21a97799265aed3bd6/FLAG317efe915 [2020-07-21 12:53:23,022 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0258e711/bc7a2c5c73184c21a97799265aed3bd6 [2020-07-21 12:53:23,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:53:23,033 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:53:23,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:23,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:53:23,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:53:23,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73f9047 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23, skipping insertion in model container [2020-07-21 12:53:23,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:53:23,098 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:53:23,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:23,548 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:53:23,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:23,673 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:53:23,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23 WrapperNode [2020-07-21 12:53:23,674 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:23,674 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:53:23,675 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:53:23,675 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:53:23,686 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,755 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... [2020-07-21 12:53:23,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:53:23,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:53:23,764 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:53:23,764 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:53:23,765 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:53:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:53:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:53:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:53:23,825 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:53:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:53:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:53:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:53:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:53:23,826 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:53:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:53:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:53:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:53:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:53:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:53:23,827 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:53:23,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:53:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:53:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:53:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:53:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:53:23,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:53:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:53:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:53:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 12:53:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:53:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:53:23,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:53:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:53:23,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:53:23,831 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:53:23,832 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:53:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:53:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:53:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:53:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:53:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:53:23,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:53:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:53:23,834 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:53:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:53:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:53:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:53:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:23,835 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:53:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:53:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:53:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:53:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:53:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:53:23,836 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:53:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:53:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:53:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 12:53:23,837 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:53:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:53:23,838 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:53:23,839 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:23,840 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:53:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:53:23,841 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:53:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:53:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:53:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:23,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:53:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:53:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:53:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:53:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:23,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:53:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:53:23,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:53:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:53:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:53:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:53:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:53:23,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:53:24,914 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:53:24,914 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:53:24,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:24 BoogieIcfgContainer [2020-07-21 12:53:24,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:53:24,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:53:24,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:53:24,924 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:53:24,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:53:23" (1/3) ... [2020-07-21 12:53:24,925 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539993c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:24, skipping insertion in model container [2020-07-21 12:53:24,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:23" (2/3) ... [2020-07-21 12:53:24,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539993c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:24, skipping insertion in model container [2020-07-21 12:53:24,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:24" (3/3) ... [2020-07-21 12:53:24,928 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product51.cil.c [2020-07-21 12:53:24,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:53:24,946 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:53:24,960 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:53:24,986 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:53:24,986 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:53:24,987 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:53:24,987 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:53:24,987 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:53:24,987 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:53:24,988 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:53:24,988 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:53:25,011 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states. [2020-07-21 12:53:25,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 12:53:25,021 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:25,022 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:25,023 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:25,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:25,029 INFO L82 PathProgramCache]: Analyzing trace with hash 1091923628, now seen corresponding path program 1 times [2020-07-21 12:53:25,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:25,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [906783095] [2020-07-21 12:53:25,040 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:25,444 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:25,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:25,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:53:25,458 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:25,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:25,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:25,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [906783095] [2020-07-21 12:53:25,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:25,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:53:25,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241688078] [2020-07-21 12:53:25,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:53:25,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:25,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:53:25,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:25,524 INFO L87 Difference]: Start difference. First operand 177 states. Second operand 2 states. [2020-07-21 12:53:25,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:25,570 INFO L93 Difference]: Finished difference Result 268 states and 333 transitions. [2020-07-21 12:53:25,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:53:25,571 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 12:53:25,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:25,583 INFO L225 Difference]: With dead ends: 268 [2020-07-21 12:53:25,584 INFO L226 Difference]: Without dead ends: 134 [2020-07-21 12:53:25,588 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:25,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-21 12:53:25,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-07-21 12:53:25,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-21 12:53:25,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 158 transitions. [2020-07-21 12:53:25,646 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 158 transitions. Word has length 46 [2020-07-21 12:53:25,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:25,646 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 158 transitions. [2020-07-21 12:53:25,646 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:53:25,646 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 158 transitions. [2020-07-21 12:53:25,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 12:53:25,650 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:25,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:25,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:25,857 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:25,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:25,858 INFO L82 PathProgramCache]: Analyzing trace with hash 644500822, now seen corresponding path program 1 times [2020-07-21 12:53:25,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:25,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1250294582] [2020-07-21 12:53:25,860 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:26,263 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:26,264 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:26,268 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:53:26,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:26,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:26,308 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1250294582] [2020-07-21 12:53:26,308 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:26,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:26,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003439245] [2020-07-21 12:53:26,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:26,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:26,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:26,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:26,312 INFO L87 Difference]: Start difference. First operand 134 states and 158 transitions. Second operand 3 states. [2020-07-21 12:53:26,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:26,335 INFO L93 Difference]: Finished difference Result 211 states and 247 transitions. [2020-07-21 12:53:26,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:26,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 12:53:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:26,338 INFO L225 Difference]: With dead ends: 211 [2020-07-21 12:53:26,338 INFO L226 Difference]: Without dead ends: 125 [2020-07-21 12:53:26,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:26,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2020-07-21 12:53:26,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2020-07-21 12:53:26,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-07-21 12:53:26,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 146 transitions. [2020-07-21 12:53:26,362 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 146 transitions. Word has length 47 [2020-07-21 12:53:26,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:26,362 INFO L479 AbstractCegarLoop]: Abstraction has 125 states and 146 transitions. [2020-07-21 12:53:26,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:26,363 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 146 transitions. [2020-07-21 12:53:26,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 12:53:26,370 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:26,370 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:26,585 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:26,586 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:26,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:26,587 INFO L82 PathProgramCache]: Analyzing trace with hash -350015351, now seen corresponding path program 1 times [2020-07-21 12:53:26,587 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:26,587 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1056053888] [2020-07-21 12:53:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:26,849 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:26,849 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:26,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:53:26,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:26,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:26,886 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:26,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1056053888] [2020-07-21 12:53:26,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:26,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:26,887 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069653187] [2020-07-21 12:53:26,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:26,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:26,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:26,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:26,888 INFO L87 Difference]: Start difference. First operand 125 states and 146 transitions. Second operand 3 states. [2020-07-21 12:53:26,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:26,918 INFO L93 Difference]: Finished difference Result 325 states and 390 transitions. [2020-07-21 12:53:26,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:26,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-21 12:53:26,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:26,923 INFO L225 Difference]: With dead ends: 325 [2020-07-21 12:53:26,924 INFO L226 Difference]: Without dead ends: 224 [2020-07-21 12:53:26,925 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 [2020-07-21 12:53:26,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-21 12:53:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2020-07-21 12:53:26,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-07-21 12:53:26,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 263 transitions. [2020-07-21 12:53:26,955 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 263 transitions. Word has length 51 [2020-07-21 12:53:26,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:26,961 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 263 transitions. [2020-07-21 12:53:26,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:26,961 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 263 transitions. [2020-07-21 12:53:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 12:53:26,964 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:26,966 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] [2020-07-21 12:53:27,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:27,168 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:27,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:27,168 INFO L82 PathProgramCache]: Analyzing trace with hash -103520613, now seen corresponding path program 1 times [2020-07-21 12:53:27,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:27,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [194303355] [2020-07-21 12:53:27,170 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:27,443 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:27,443 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:27,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:53:27,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:27,507 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:27,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [194303355] [2020-07-21 12:53:27,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:27,508 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:27,508 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115182004] [2020-07-21 12:53:27,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:27,509 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:27,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:27,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:27,509 INFO L87 Difference]: Start difference. First operand 220 states and 263 transitions. Second operand 6 states. [2020-07-21 12:53:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:27,786 INFO L93 Difference]: Finished difference Result 593 states and 747 transitions. [2020-07-21 12:53:27,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:27,787 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-21 12:53:27,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:27,793 INFO L225 Difference]: With dead ends: 593 [2020-07-21 12:53:27,793 INFO L226 Difference]: Without dead ends: 397 [2020-07-21 12:53:27,795 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 [2020-07-21 12:53:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2020-07-21 12:53:27,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2020-07-21 12:53:27,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 397 states. [2020-07-21 12:53:27,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 496 transitions. [2020-07-21 12:53:27,838 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 496 transitions. Word has length 57 [2020-07-21 12:53:27,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:27,839 INFO L479 AbstractCegarLoop]: Abstraction has 397 states and 496 transitions. [2020-07-21 12:53:27,839 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:27,839 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 496 transitions. [2020-07-21 12:53:27,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 12:53:27,842 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:27,843 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] [2020-07-21 12:53:28,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,057 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:28,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:28,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1065334495, now seen corresponding path program 1 times [2020-07-21 12:53:28,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:28,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1066520024] [2020-07-21 12:53:28,059 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,404 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:28,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:28,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:53:28,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:28,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:28,428 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:28,428 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1066520024] [2020-07-21 12:53:28,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:28,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:28,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847170064] [2020-07-21 12:53:28,429 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:28,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:28,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:28,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:28,430 INFO L87 Difference]: Start difference. First operand 397 states and 496 transitions. Second operand 3 states. [2020-07-21 12:53:28,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:28,493 INFO L93 Difference]: Finished difference Result 917 states and 1213 transitions. [2020-07-21 12:53:28,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:28,494 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 12:53:28,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:28,498 INFO L225 Difference]: With dead ends: 917 [2020-07-21 12:53:28,499 INFO L226 Difference]: Without dead ends: 544 [2020-07-21 12:53:28,500 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 [2020-07-21 12:53:28,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-07-21 12:53:28,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 531. [2020-07-21 12:53:28,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2020-07-21 12:53:28,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 677 transitions. [2020-07-21 12:53:28,538 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 677 transitions. Word has length 61 [2020-07-21 12:53:28,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:28,539 INFO L479 AbstractCegarLoop]: Abstraction has 531 states and 677 transitions. [2020-07-21 12:53:28,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:28,539 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 677 transitions. [2020-07-21 12:53:28,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2020-07-21 12:53:28,541 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:28,541 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] [2020-07-21 12:53:28,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,755 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:28,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:28,755 INFO L82 PathProgramCache]: Analyzing trace with hash -1221380108, now seen corresponding path program 1 times [2020-07-21 12:53:28,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:28,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [228832585] [2020-07-21 12:53:28,756 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,987 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:28,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:28,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 12:53:28,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,025 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 12:53:29,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,026 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [228832585] [2020-07-21 12:53:29,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:29,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217144686] [2020-07-21 12:53:29,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:29,030 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:29,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,031 INFO L87 Difference]: Start difference. First operand 531 states and 677 transitions. Second operand 3 states. [2020-07-21 12:53:29,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,119 INFO L93 Difference]: Finished difference Result 629 states and 800 transitions. [2020-07-21 12:53:29,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:29,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 112 [2020-07-21 12:53:29,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,122 INFO L225 Difference]: With dead ends: 629 [2020-07-21 12:53:29,122 INFO L226 Difference]: Without dead ends: 320 [2020-07-21 12:53:29,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-07-21 12:53:29,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 314. [2020-07-21 12:53:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 314 states. [2020-07-21 12:53:29,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 389 transitions. [2020-07-21 12:53:29,162 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 389 transitions. Word has length 112 [2020-07-21 12:53:29,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:29,162 INFO L479 AbstractCegarLoop]: Abstraction has 314 states and 389 transitions. [2020-07-21 12:53:29,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:29,162 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 389 transitions. [2020-07-21 12:53:29,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 12:53:29,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:29,171 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:29,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,381 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:29,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:29,381 INFO L82 PathProgramCache]: Analyzing trace with hash 605263964, now seen corresponding path program 1 times [2020-07-21 12:53:29,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:29,382 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [488994318] [2020-07-21 12:53:29,382 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,648 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 834 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 12:53:29,704 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [488994318] [2020-07-21 12:53:29,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:29,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708386824] [2020-07-21 12:53:29,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:29,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:29,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:29,708 INFO L87 Difference]: Start difference. First operand 314 states and 389 transitions. Second operand 6 states. [2020-07-21 12:53:29,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,759 INFO L93 Difference]: Finished difference Result 614 states and 784 transitions. [2020-07-21 12:53:29,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:29,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-21 12:53:29,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,766 INFO L225 Difference]: With dead ends: 614 [2020-07-21 12:53:29,766 INFO L226 Difference]: Without dead ends: 324 [2020-07-21 12:53:29,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:29,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2020-07-21 12:53:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2020-07-21 12:53:29,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 324 states. [2020-07-21 12:53:29,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 400 transitions. [2020-07-21 12:53:29,785 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 400 transitions. Word has length 128 [2020-07-21 12:53:29,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:29,786 INFO L479 AbstractCegarLoop]: Abstraction has 324 states and 400 transitions. [2020-07-21 12:53:29,786 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:29,786 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 400 transitions. [2020-07-21 12:53:29,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 12:53:29,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:29,789 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:30,001 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,002 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:30,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:30,003 INFO L82 PathProgramCache]: Analyzing trace with hash 845503710, now seen corresponding path program 1 times [2020-07-21 12:53:30,003 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:30,004 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144268772] [2020-07-21 12:53:30,004 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,249 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:30,250 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:30,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:53:30,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:30,292 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 12:53:30,292 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:30,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144268772] [2020-07-21 12:53:30,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:30,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:53:30,293 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847919973] [2020-07-21 12:53:30,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:53:30,294 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:30,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:53:30,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:30,295 INFO L87 Difference]: Start difference. First operand 324 states and 400 transitions. Second operand 5 states. [2020-07-21 12:53:30,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:30,318 INFO L93 Difference]: Finished difference Result 622 states and 795 transitions. [2020-07-21 12:53:30,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:53:30,318 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-21 12:53:30,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:30,320 INFO L225 Difference]: With dead ends: 622 [2020-07-21 12:53:30,321 INFO L226 Difference]: Without dead ends: 322 [2020-07-21 12:53:30,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:30,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-07-21 12:53:30,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-07-21 12:53:30,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-07-21 12:53:30,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 393 transitions. [2020-07-21 12:53:30,338 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 393 transitions. Word has length 128 [2020-07-21 12:53:30,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:30,338 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 393 transitions. [2020-07-21 12:53:30,338 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:53:30,339 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 393 transitions. [2020-07-21 12:53:30,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 12:53:30,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:30,341 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:30,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,551 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:30,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:30,552 INFO L82 PathProgramCache]: Analyzing trace with hash -639551841, now seen corresponding path program 1 times [2020-07-21 12:53:30,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:30,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1443995149] [2020-07-21 12:53:30,553 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,743 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:53:30,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:30,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:53:30,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:30,800 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:30,800 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:30,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1443995149] [2020-07-21 12:53:30,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:30,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:30,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597662230] [2020-07-21 12:53:30,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:30,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:30,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:30,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:30,803 INFO L87 Difference]: Start difference. First operand 322 states and 393 transitions. Second operand 6 states. [2020-07-21 12:53:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:31,590 INFO L93 Difference]: Finished difference Result 873 states and 1131 transitions. [2020-07-21 12:53:31,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:31,595 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-21 12:53:31,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:31,598 INFO L225 Difference]: With dead ends: 873 [2020-07-21 12:53:31,599 INFO L226 Difference]: Without dead ends: 575 [2020-07-21 12:53:31,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:31,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2020-07-21 12:53:31,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 558. [2020-07-21 12:53:31,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 558 states. [2020-07-21 12:53:31,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 558 states and 691 transitions. [2020-07-21 12:53:31,631 INFO L78 Accepts]: Start accepts. Automaton has 558 states and 691 transitions. Word has length 128 [2020-07-21 12:53:31,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:31,632 INFO L479 AbstractCegarLoop]: Abstraction has 558 states and 691 transitions. [2020-07-21 12:53:31,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:31,632 INFO L276 IsEmpty]: Start isEmpty. Operand 558 states and 691 transitions. [2020-07-21 12:53:31,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-21 12:53:31,634 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:31,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:31,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,849 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:31,849 INFO L82 PathProgramCache]: Analyzing trace with hash -2030061671, now seen corresponding path program 1 times [2020-07-21 12:53:31,849 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:31,849 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [869257112] [2020-07-21 12:53:31,850 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,096 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:32,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:32,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:32,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:32,187 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:32,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 12:53:32,527 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [869257112] [2020-07-21 12:53:32,527 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:32,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 12:53:32,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916464036] [2020-07-21 12:53:32,528 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 12:53:32,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:32,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 12:53:32,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 12:53:32,529 INFO L87 Difference]: Start difference. First operand 558 states and 691 transitions. Second operand 12 states. [2020-07-21 12:53:34,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:34,009 INFO L93 Difference]: Finished difference Result 1567 states and 2108 transitions. [2020-07-21 12:53:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 12:53:34,010 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 132 [2020-07-21 12:53:34,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:34,017 INFO L225 Difference]: With dead ends: 1567 [2020-07-21 12:53:34,017 INFO L226 Difference]: Without dead ends: 879 [2020-07-21 12:53:34,020 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 252 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 12:53:34,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 879 states. [2020-07-21 12:53:34,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 879 to 722. [2020-07-21 12:53:34,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 722 states. [2020-07-21 12:53:34,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 722 states to 722 states and 895 transitions. [2020-07-21 12:53:34,083 INFO L78 Accepts]: Start accepts. Automaton has 722 states and 895 transitions. Word has length 132 [2020-07-21 12:53:34,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:34,084 INFO L479 AbstractCegarLoop]: Abstraction has 722 states and 895 transitions. [2020-07-21 12:53:34,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 12:53:34,085 INFO L276 IsEmpty]: Start isEmpty. Operand 722 states and 895 transitions. [2020-07-21 12:53:34,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-21 12:53:34,088 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:34,088 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, 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] [2020-07-21 12:53:34,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,303 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:34,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:34,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1653717520, now seen corresponding path program 1 times [2020-07-21 12:53:34,304 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:34,305 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1561936824] [2020-07-21 12:53:34,305 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,594 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:34,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:34,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 964 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:34,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:34,645 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 12:53:34,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:34,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1561936824] [2020-07-21 12:53:34,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:34,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:34,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60439612] [2020-07-21 12:53:34,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:34,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:34,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:34,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:34,647 INFO L87 Difference]: Start difference. First operand 722 states and 895 transitions. Second operand 6 states. [2020-07-21 12:53:34,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:34,873 INFO L93 Difference]: Finished difference Result 737 states and 911 transitions. [2020-07-21 12:53:34,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:34,873 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2020-07-21 12:53:34,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:34,877 INFO L225 Difference]: With dead ends: 737 [2020-07-21 12:53:34,877 INFO L226 Difference]: Without dead ends: 642 [2020-07-21 12:53:34,878 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:34,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-07-21 12:53:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 634. [2020-07-21 12:53:34,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 634 states. [2020-07-21 12:53:34,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 781 transitions. [2020-07-21 12:53:34,909 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 781 transitions. Word has length 185 [2020-07-21 12:53:34,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:34,910 INFO L479 AbstractCegarLoop]: Abstraction has 634 states and 781 transitions. [2020-07-21 12:53:34,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:34,910 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 781 transitions. [2020-07-21 12:53:34,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 12:53:34,913 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:34,913 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:35,123 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:35,124 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:35,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:35,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1692744000, now seen corresponding path program 1 times [2020-07-21 12:53:35,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:35,126 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1797361632] [2020-07-21 12:53:35,126 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:35,471 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:35,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:35,477 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:53:35,482 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:35,558 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:35,558 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 12:53:35,625 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 91 proven. 16 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-21 12:53:35,625 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:35,900 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:35,963 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:35,963 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:36,023 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:36,023 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:36,039 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:36,039 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:36,079 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 47 proven. 26 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 12:53:36,239 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1797361632] [2020-07-21 12:53:36,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:36,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-21 12:53:36,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522576019] [2020-07-21 12:53:36,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 12:53:36,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:36,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 12:53:36,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-21 12:53:36,241 INFO L87 Difference]: Start difference. First operand 634 states and 781 transitions. Second operand 16 states. [2020-07-21 12:53:38,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:38,440 INFO L93 Difference]: Finished difference Result 1783 states and 2425 transitions. [2020-07-21 12:53:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-07-21 12:53:38,440 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 189 [2020-07-21 12:53:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:38,449 INFO L225 Difference]: With dead ends: 1783 [2020-07-21 12:53:38,449 INFO L226 Difference]: Without dead ends: 1230 [2020-07-21 12:53:38,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 368 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=182, Invalid=574, Unknown=0, NotChecked=0, Total=756 [2020-07-21 12:53:38,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1230 states. [2020-07-21 12:53:38,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1230 to 945. [2020-07-21 12:53:38,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 945 states. [2020-07-21 12:53:38,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 945 states to 945 states and 1154 transitions. [2020-07-21 12:53:38,530 INFO L78 Accepts]: Start accepts. Automaton has 945 states and 1154 transitions. Word has length 189 [2020-07-21 12:53:38,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:38,533 INFO L479 AbstractCegarLoop]: Abstraction has 945 states and 1154 transitions. [2020-07-21 12:53:38,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 12:53:38,533 INFO L276 IsEmpty]: Start isEmpty. Operand 945 states and 1154 transitions. [2020-07-21 12:53:38,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-21 12:53:38,551 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:38,552 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 12:53:38,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:38,765 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:38,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:38,766 INFO L82 PathProgramCache]: Analyzing trace with hash 183738818, now seen corresponding path program 1 times [2020-07-21 12:53:38,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:38,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [591303786] [2020-07-21 12:53:38,767 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:39,008 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:39,009 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:39,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:53:39,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:39,098 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-21 12:53:39,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:39,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [591303786] [2020-07-21 12:53:39,098 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:39,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:39,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437803271] [2020-07-21 12:53:39,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:39,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:39,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:39,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:39,101 INFO L87 Difference]: Start difference. First operand 945 states and 1154 transitions. Second operand 6 states. [2020-07-21 12:53:39,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:39,152 INFO L93 Difference]: Finished difference Result 1260 states and 1525 transitions. [2020-07-21 12:53:39,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:39,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-07-21 12:53:39,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:39,153 INFO L225 Difference]: With dead ends: 1260 [2020-07-21 12:53:39,154 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:53:39,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:39,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:53:39,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:53:39,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:53:39,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:53:39,162 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2020-07-21 12:53:39,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:39,163 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:53:39,163 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:39,163 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:53:39,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:53:39,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:39,374 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:53:40,760 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 28 [2020-07-21 12:53:41,208 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 33 [2020-07-21 12:53:41,688 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-07-21 12:53:42,028 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2020-07-21 12:53:42,774 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 23 [2020-07-21 12:53:42,921 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 34 [2020-07-21 12:53:42,979 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 659 714) no Hoare annotation was computed. [2020-07-21 12:53:42,979 INFO L268 CegarLoopResult]: For program point L690(lines 690 694) no Hoare annotation was computed. [2020-07-21 12:53:42,979 INFO L268 CegarLoopResult]: For program point L690-1(lines 690 694) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point L685(line 685) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point L684-2(lines 684 705) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 659 714) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 659 714) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point L706(lines 683 707) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point L767(lines 740 768) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point L760(line 760) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point L760-1(line 760) no Hoare annotation was computed. [2020-07-21 12:53:42,980 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 715 774) no Hoare annotation was computed. [2020-07-21 12:53:42,981 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 715 774) no Hoare annotation was computed. [2020-07-21 12:53:42,981 INFO L268 CegarLoopResult]: For program point L747(lines 747 751) no Hoare annotation was computed. [2020-07-21 12:53:42,981 INFO L268 CegarLoopResult]: For program point L747-1(lines 747 751) no Hoare annotation was computed. [2020-07-21 12:53:42,981 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 715 774) no Hoare annotation was computed. [2020-07-21 12:53:42,985 INFO L268 CegarLoopResult]: For program point L742(line 742) no Hoare annotation was computed. [2020-07-21 12:53:42,985 INFO L268 CegarLoopResult]: For program point L741-2(lines 741 766) no Hoare annotation was computed. [2020-07-21 12:53:42,986 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 299 305) the Hoare annotation is: true [2020-07-21 12:53:42,986 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 299 305) no Hoare annotation was computed. [2020-07-21 12:53:42,986 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 306 314) no Hoare annotation was computed. [2020-07-21 12:53:42,986 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 306 314) the Hoare annotation is: true [2020-07-21 12:53:42,986 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 306 314) no Hoare annotation was computed. [2020-07-21 12:53:42,987 INFO L264 CegarLoopResult]: At program point L161(line 161) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~pumpRunning~0)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1) (or .cse0 (not (<= 2 ~waterLevel~0))) (or (not (= 0 ~systemActive~0)) .cse1))) [2020-07-21 12:53:42,987 INFO L268 CegarLoopResult]: For program point L159(lines 159 165) no Hoare annotation was computed. [2020-07-21 12:53:42,987 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 147 171) the Hoare annotation is: true [2020-07-21 12:53:42,987 INFO L264 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2) (or .cse1 (not (<= 2 ~waterLevel~0))) (or .cse0 (not (= 0 ~systemActive~0)) .cse2))) [2020-07-21 12:53:42,987 INFO L268 CegarLoopResult]: For program point L157-1(line 157) no Hoare annotation was computed. [2020-07-21 12:53:42,987 INFO L268 CegarLoopResult]: For program point L155(lines 155 168) no Hoare annotation was computed. [2020-07-21 12:53:42,987 INFO L268 CegarLoopResult]: For program point L155-1(lines 147 171) no Hoare annotation was computed. [2020-07-21 12:53:42,988 INFO L271 CegarLoopResult]: At program point L153(line 153) the Hoare annotation is: true [2020-07-21 12:53:42,988 INFO L268 CegarLoopResult]: For program point L153-1(line 153) no Hoare annotation was computed. [2020-07-21 12:53:42,988 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 147 171) no Hoare annotation was computed. [2020-07-21 12:53:42,988 INFO L268 CegarLoopResult]: For program point L130-1(lines 130 137) no Hoare annotation was computed. [2020-07-21 12:53:42,988 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-07-21 12:53:42,988 INFO L264 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,988 INFO L264 CegarLoopResult]: At program point L126(line 126) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,989 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 120 142) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,989 INFO L264 CegarLoopResult]: At program point L126-1(line 126) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,989 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 120 142) no Hoare annotation was computed. [2020-07-21 12:53:42,989 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 120 142) no Hoare annotation was computed. [2020-07-21 12:53:42,989 INFO L264 CegarLoopResult]: At program point L132(line 132) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,989 INFO L264 CegarLoopResult]: At program point L132-1(line 132) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point L130(lines 130 137) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 75 98) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point L93(line 93) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 75 98) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 75 98) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 12:53:42,990 INFO L268 CegarLoopResult]: For program point L90(line 90) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L87(line 87) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L84(line 84) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 515 529) no Hoare annotation was computed. [2020-07-21 12:53:42,991 INFO L264 CegarLoopResult]: At program point L521(line 521) the Hoare annotation is: (and (not (= 0 |old(~pumpRunning~0)|)) (or (<= 1 ~systemActive~0) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point L519(lines 519 525) no Hoare annotation was computed. [2020-07-21 12:53:42,992 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 515 529) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (= 0 ~pumpRunning~0)) (or (<= 1 ~systemActive~0) (not (<= 1 |old(~systemActive~0)|))) (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) .cse0 (not (= 0 |old(~systemActive~0)|))))) [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 515 529) no Hoare annotation was computed. [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 432 440) no Hoare annotation was computed. [2020-07-21 12:53:42,992 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 432 440) the Hoare annotation is: true [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 432 440) no Hoare annotation was computed. [2020-07-21 12:53:42,992 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 496 514) the Hoare annotation is: true [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point L505(lines 505 509) no Hoare annotation was computed. [2020-07-21 12:53:42,992 INFO L271 CegarLoopResult]: At program point L503(line 503) the Hoare annotation is: true [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point L505-2(lines 505 509) no Hoare annotation was computed. [2020-07-21 12:53:42,992 INFO L268 CegarLoopResult]: For program point L503-1(line 503) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 496 514) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 496 514) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point L448(lines 448 456) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point L448-2(lines 448 456) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point L471(line 471) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point L471-1(line 471) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 441 476) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point L460(lines 460 468) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point L460-2(lines 460 468) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 441 476) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 441 476) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 292 298) no Hoare annotation was computed. [2020-07-21 12:53:42,993 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 292 298) the Hoare annotation is: true [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 613 658) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 613 658) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 613 658) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 926 971) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point L946(lines 946 953) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point L940(lines 940 960) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point L940-1(lines 940 960) no Hoare annotation was computed. [2020-07-21 12:53:42,994 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 926 971) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 926 971) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 107 116) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 107 116) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 107 116) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 421 431) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 421 431) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point L426(line 426) no Hoare annotation was computed. [2020-07-21 12:53:42,995 INFO L268 CegarLoopResult]: For program point L426-1(line 426) no Hoare annotation was computed. [2020-07-21 12:53:42,996 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 421 431) no Hoare annotation was computed. [2020-07-21 12:53:42,996 INFO L271 CegarLoopResult]: At program point deactivatePumpENTRY(lines 413 420) the Hoare annotation is: true [2020-07-21 12:53:42,996 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 413 420) no Hoare annotation was computed. [2020-07-21 12:53:42,996 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 413 420) no Hoare annotation was computed. [2020-07-21 12:53:42,996 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 257 270) no Hoare annotation was computed. [2020-07-21 12:53:42,996 INFO L268 CegarLoopResult]: For program point L261(lines 261 267) no Hoare annotation was computed. [2020-07-21 12:53:42,996 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 257 270) the Hoare annotation is: true [2020-07-21 12:53:42,996 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 257 270) no Hoare annotation was computed. [2020-07-21 12:53:42,997 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-21 12:53:42,997 INFO L268 CegarLoopResult]: For program point L384(lines 384 401) no Hoare annotation was computed. [2020-07-21 12:53:42,997 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 380 404) no Hoare annotation was computed. [2020-07-21 12:53:42,997 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 380 404) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:42,997 INFO L264 CegarLoopResult]: At program point L399(line 399) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:42,997 INFO L268 CegarLoopResult]: For program point L399-1(lines 380 404) no Hoare annotation was computed. [2020-07-21 12:53:42,997 INFO L264 CegarLoopResult]: At program point L394(line 394) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0))) [2020-07-21 12:53:42,997 INFO L264 CegarLoopResult]: At program point L390(line 390) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (<= 1 processEnvironment_~tmp~3)))) [2020-07-21 12:53:42,998 INFO L268 CegarLoopResult]: For program point L388(lines 388 396) no Hoare annotation was computed. [2020-07-21 12:53:42,998 INFO L264 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:42,998 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 346 352) no Hoare annotation was computed. [2020-07-21 12:53:42,998 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 346 352) the Hoare annotation is: true [2020-07-21 12:53:42,998 INFO L264 CegarLoopResult]: At program point testENTRY(lines 531 596) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,998 INFO L268 CegarLoopResult]: For program point L543(lines 543 547) no Hoare annotation was computed. [2020-07-21 12:53:42,998 INFO L268 CegarLoopResult]: For program point testFINAL(lines 531 596) no Hoare annotation was computed. [2020-07-21 12:53:42,998 INFO L264 CegarLoopResult]: At program point L589(lines 540 590) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:42,999 INFO L264 CegarLoopResult]: At program point L579(line 579) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) .cse0) (and (<= 1 ~waterLevel~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and .cse0 (<= 1 ~systemActive~0)))) [2020-07-21 12:53:42,999 INFO L268 CegarLoopResult]: For program point L577(lines 577 583) no Hoare annotation was computed. [2020-07-21 12:53:42,999 INFO L264 CegarLoopResult]: At program point L577-1(lines 571 584) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:42,999 INFO L268 CegarLoopResult]: For program point L542(lines 541 588) no Hoare annotation was computed. [2020-07-21 12:53:42,999 INFO L268 CegarLoopResult]: For program point L571(lines 571 584) no Hoare annotation was computed. [2020-07-21 12:53:42,999 INFO L264 CegarLoopResult]: At program point L563(line 563) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:42,999 INFO L268 CegarLoopResult]: For program point L561(lines 561 567) no Hoare annotation was computed. [2020-07-21 12:53:42,999 INFO L268 CegarLoopResult]: For program point L561-1(lines 561 567) no Hoare annotation was computed. [2020-07-21 12:53:43,000 INFO L264 CegarLoopResult]: At program point L586(lines 541 588) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:43,000 INFO L264 CegarLoopResult]: At program point L553(line 553) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1))) [2020-07-21 12:53:43,000 INFO L268 CegarLoopResult]: For program point L551(lines 551 557) no Hoare annotation was computed. [2020-07-21 12:53:43,000 INFO L268 CegarLoopResult]: For program point L551-1(lines 551 557) no Hoare annotation was computed. [2020-07-21 12:53:43,000 INFO L268 CegarLoopResult]: For program point testEXIT(lines 531 596) no Hoare annotation was computed. [2020-07-21 12:53:43,000 INFO L268 CegarLoopResult]: For program point L894(lines 894 914) no Hoare annotation was computed. [2020-07-21 12:53:43,000 INFO L268 CegarLoopResult]: For program point L894-1(lines 894 914) no Hoare annotation was computed. [2020-07-21 12:53:43,000 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 880 925) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 880 925) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 880 925) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point L900(lines 900 907) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 271 279) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 271 279) the Hoare annotation is: true [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 271 279) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point L233(lines 233 241) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 225 247) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point L233-2(lines 233 241) no Hoare annotation was computed. [2020-07-21 12:53:43,001 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 225 247) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 225 247) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 282 291) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 282 291) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 282 291) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point L801(lines 801 805) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point L865(lines 865 876) no Hoare annotation was computed. [2020-07-21 12:53:43,002 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 777 879) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L828(lines 828 832) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L826-2(lines 826 846) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L847(lines 825 848) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L806(lines 806 822) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 777 879) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L866(lines 866 873) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L827(lines 826 846) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L858(line 858) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L858-1(line 858) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L823(lines 823 864) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 777 879) no Hoare annotation was computed. [2020-07-21 12:53:43,003 INFO L268 CegarLoopResult]: For program point L842(line 842) no Hoare annotation was computed. [2020-07-21 12:53:43,004 INFO L268 CegarLoopResult]: For program point L842-1(line 842) no Hoare annotation was computed. [2020-07-21 12:53:43,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,004 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:53:43,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,004 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 405 412) no Hoare annotation was computed. [2020-07-21 12:53:43,004 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 405 412) no Hoare annotation was computed. [2020-07-21 12:53:43,004 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 405 412) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:43,004 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 248 256) the Hoare annotation is: true [2020-07-21 12:53:43,005 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 248 256) no Hoare annotation was computed. [2020-07-21 12:53:43,005 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 248 256) no Hoare annotation was computed. [2020-07-21 12:53:43,005 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 477 495) no Hoare annotation was computed. [2020-07-21 12:53:43,005 INFO L268 CegarLoopResult]: For program point L486(lines 486 490) no Hoare annotation was computed. [2020-07-21 12:53:43,005 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 477 495) the Hoare annotation is: true [2020-07-21 12:53:43,005 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 477 495) no Hoare annotation was computed. [2020-07-21 12:53:43,005 INFO L271 CegarLoopResult]: At program point L484(line 484) the Hoare annotation is: true [2020-07-21 12:53:43,005 INFO L268 CegarLoopResult]: For program point L486-2(lines 486 490) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L268 CegarLoopResult]: For program point L484-1(line 484) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L268 CegarLoopResult]: For program point L208-1(lines 204 215) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 204 215) the Hoare annotation is: true [2020-07-21 12:53:43,006 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 204 215) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,006 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 322 345) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= 0 ~pumpRunning~0)) (.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and .cse1 .cse2)) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= ~waterLevel~0 1) .cse2) .cse3 .cse4) (or .cse0 .cse3 .cse5 .cse4) (or (and .cse1 .cse5 .cse2) (not (= 0 ~systemActive~0)) .cse3))) [2020-07-21 12:53:43,007 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~systemActive~0))) (.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or (not (= 0 ~systemActive~0)) .cse0) (or .cse1 (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse1 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse0 (<= ~waterLevel~0 1) .cse2))) [2020-07-21 12:53:43,007 INFO L264 CegarLoopResult]: At program point L333(lines 333 339) the Hoare annotation is: (let ((.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse1 (<= ~waterLevel~0 1) .cse2) .cse3 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse3 .cse4 .cse2) (or (and .cse5 .cse1 .cse2) (not (= 0 ~systemActive~0)) .cse3) (let ((.cse6 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or .cse0 (and (<= 2 ~waterLevel~0) .cse5 .cse6) (and .cse5 .cse6 .cse1) .cse4)))) [2020-07-21 12:53:43,007 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 322 345) no Hoare annotation was computed. [2020-07-21 12:53:43,007 INFO L264 CegarLoopResult]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or (not (= 0 ~systemActive~0)) .cse1) (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:53:43,007 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 322 345) no Hoare annotation was computed. [2020-07-21 12:53:43,008 INFO L268 CegarLoopResult]: For program point L326(lines 325 344) no Hoare annotation was computed. [2020-07-21 12:53:43,008 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 42 71) no Hoare annotation was computed. [2020-07-21 12:53:43,008 INFO L268 CegarLoopResult]: For program point L63(line 63) no Hoare annotation was computed. [2020-07-21 12:53:43,008 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 42 71) the Hoare annotation is: true [2020-07-21 12:53:43,008 INFO L268 CegarLoopResult]: For program point L56(lines 56 60) no Hoare annotation was computed. [2020-07-21 12:53:43,008 INFO L271 CegarLoopResult]: At program point L56-1(lines 56 60) the Hoare annotation is: true [2020-07-21 12:53:43,008 INFO L268 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-07-21 12:53:43,008 INFO L271 CegarLoopResult]: At program point L52-2(lines 52 66) the Hoare annotation is: true [2020-07-21 12:53:43,009 INFO L271 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: true [2020-07-21 12:53:43,009 INFO L268 CegarLoopResult]: For program point L48-1(line 48) no Hoare annotation was computed. [2020-07-21 12:53:43,009 INFO L271 CegarLoopResult]: At program point L67(lines 42 71) the Hoare annotation is: true [2020-07-21 12:53:43,009 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 216 224) no Hoare annotation was computed. [2020-07-21 12:53:43,009 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 216 224) no Hoare annotation was computed. [2020-07-21 12:53:43,009 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 216 224) no Hoare annotation was computed. [2020-07-21 12:53:43,009 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 180 191) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-21 12:53:43,009 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 180 191) no Hoare annotation was computed. [2020-07-21 12:53:43,010 INFO L268 CegarLoopResult]: For program point L184-1(lines 180 191) no Hoare annotation was computed. [2020-07-21 12:53:43,010 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 99 105) no Hoare annotation was computed. [2020-07-21 12:53:43,010 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 99 105) the Hoare annotation is: true [2020-07-21 12:53:43,010 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,010 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:53:43,010 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:53:43,010 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:43,010 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 354 378) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:43,011 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 354 378) no Hoare annotation was computed. [2020-07-21 12:53:43,011 INFO L264 CegarLoopResult]: At program point L373(line 373) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:43,011 INFO L268 CegarLoopResult]: For program point L373-1(lines 354 378) no Hoare annotation was computed. [2020-07-21 12:53:43,011 INFO L264 CegarLoopResult]: At program point L368(line 368) the Hoare annotation is: (or (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= 0 ~pumpRunning~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 12:53:43,011 INFO L264 CegarLoopResult]: At program point L364(line 364) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or (not (<= 1 ~waterLevel~0)) .cse0 .cse1 (not (<= ~waterLevel~0 1))) (or .cse0 .cse1 (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))))) [2020-07-21 12:53:43,011 INFO L268 CegarLoopResult]: For program point L362(lines 362 370) no Hoare annotation was computed. [2020-07-21 12:53:43,011 INFO L264 CegarLoopResult]: At program point L360(line 360) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 12:53:43,012 INFO L268 CegarLoopResult]: For program point L360-1(line 360) no Hoare annotation was computed. [2020-07-21 12:53:43,012 INFO L268 CegarLoopResult]: For program point L358(lines 358 375) no Hoare annotation was computed. [2020-07-21 12:53:43,012 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 192 203) no Hoare annotation was computed. [2020-07-21 12:53:43,012 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 192 203) the Hoare annotation is: (let ((.cse2 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~pumpRunning~0))) (.cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= ~waterLevel~0 1) .cse2) .cse3 (not (<= 1 |old(~waterLevel~0)|))) (or (not (= 0 ~systemActive~0)) .cse3 .cse1)))) [2020-07-21 12:53:43,012 INFO L268 CegarLoopResult]: For program point L196-1(lines 192 203) no Hoare annotation was computed. [2020-07-21 12:53:43,012 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 598 605) no Hoare annotation was computed. [2020-07-21 12:53:43,012 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 602) no Hoare annotation was computed. [2020-07-21 12:53:43,012 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 598 605) the Hoare annotation is: true [2020-07-21 12:53:43,013 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 598 605) no Hoare annotation was computed. [2020-07-21 12:53:43,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:53:43 BoogieIcfgContainer [2020-07-21 12:53:43,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:53:43,033 INFO L168 Benchmark]: Toolchain (without parser) took 20000.81 ms. Allocated memory was 138.9 MB in the beginning and 467.7 MB in the end (delta: 328.7 MB). Free memory was 103.0 MB in the beginning and 413.5 MB in the end (delta: -310.5 MB). Peak memory consumption was 314.1 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:43,033 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 12:53:43,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.37 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.6 MB in the beginning and 173.2 MB in the end (delta: -70.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:43,035 INFO L168 Benchmark]: Boogie Preprocessor took 88.98 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 169.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:43,036 INFO L168 Benchmark]: RCFGBuilder took 1155.54 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 169.0 MB in the beginning and 197.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:43,036 INFO L168 Benchmark]: TraceAbstraction took 18110.34 ms. Allocated memory was 237.0 MB in the beginning and 467.7 MB in the end (delta: 230.7 MB). Free memory was 197.5 MB in the beginning and 413.5 MB in the end (delta: -216.0 MB). Peak memory consumption was 310.6 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:43,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.37 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.6 MB in the beginning and 173.2 MB in the end (delta: -70.6 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.98 ms. Allocated memory is still 203.9 MB. Free memory was 173.2 MB in the beginning and 169.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1155.54 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 169.0 MB in the beginning and 197.5 MB in the end (delta: -28.5 MB). Peak memory consumption was 84.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18110.34 ms. Allocated memory was 237.0 MB in the beginning and 467.7 MB in the end (delta: 230.7 MB). Free memory was 197.5 MB in the beginning and 413.5 MB in the end (delta: -216.0 MB). Peak memory consumption was 310.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 602]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 540]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || (((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(0 == \old(pumpRunning))) || ((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive))) || ((0 == systemActive && 0 == pumpRunning) && splverifierCounter <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 241 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.3s, OverallIterations: 13, TraceHistogramMax: 3, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2198 SDtfs, 1925 SDslu, 3911 SDs, 0 SdLazy, 3275 SolverSat, 1069 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1804 GetRequests, 1716 SyntacticMatches, 7 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=945occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 490 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 61 LocationsWithAnnotation, 1975 PreInvPairs, 2087 NumberOfFragments, 1196 HoareAnnotationTreeSize, 1975 FomulaSimplifications, 4879 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 61 FomulaSimplificationsInter, 7307 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 1453 NumberOfCodeBlocks, 1389 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1759 ConstructedInterpolants, 0 QuantifiedInterpolants, 393361 SizeOfPredicates, 43 NumberOfNonLiveVariables, 10253 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 15 InterpolantComputations, 11 PerfectInterpolantSequences, 508/563 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 correct! Received shutdown request...