/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:23:38,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:23:38,704 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:23:38,723 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:23:38,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:23:38,726 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:23:38,728 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:23:38,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:23:38,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:23:38,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:23:38,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:23:38,750 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:23:38,750 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:23:38,754 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:23:38,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:23:38,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:23:38,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:23:38,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:23:38,763 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:23:38,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:23:38,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:23:38,777 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:23:38,778 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:23:38,779 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:23:38,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:23:38,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:23:38,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:23:38,787 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:23:38,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:23:38,789 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:23:38,790 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:23:38,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:23:38,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:23:38,794 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:23:38,796 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:23:38,796 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:23:38,797 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:23:38,797 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:23:38,797 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:23:38,798 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:23:38,799 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:23:38,800 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 [2020-07-20 16:23:38,822 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:23:38,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:23:38,824 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:23:38,824 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:23:38,824 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:23:38,825 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:23:38,825 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:23:38,825 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:23:38,825 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:23:38,825 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:23:38,826 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:23:38,827 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:23:38,827 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:23:38,827 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:23:38,828 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:23:38,828 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:23:38,828 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:23:38,828 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:23:38,828 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:23:38,829 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:23:38,829 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:23:38,829 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:23:38,829 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:23:38,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:23:38,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:23:38,830 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:23:38,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:38,830 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:23:38,831 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:23:38,831 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:23:39,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:23:39,155 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:23:39,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:23:39,160 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:23:39,160 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:23:39,161 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2020-07-20 16:23:39,225 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f98ee925/0506037b57d34feebf8618f2aab71382/FLAG2af562539 [2020-07-20 16:23:39,753 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:23:39,754 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product61.cil.c [2020-07-20 16:23:39,768 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f98ee925/0506037b57d34feebf8618f2aab71382/FLAG2af562539 [2020-07-20 16:23:40,087 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f98ee925/0506037b57d34feebf8618f2aab71382 [2020-07-20 16:23:40,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:23:40,099 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:23:40,101 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:23:40,101 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:23:40,105 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:23:40,106 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6960a08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40, skipping insertion in model container [2020-07-20 16:23:40,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:23:40,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:23:40,648 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:23:40,661 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:23:40,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:23:40,783 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:23:40,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40 WrapperNode [2020-07-20 16:23:40,783 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:23:40,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:23:40,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:23:40,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:23:40,799 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,861 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... [2020-07-20 16:23:40,874 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:23:40,874 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:23:40,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:23:40,875 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:23:40,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:23:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:23:40,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:23:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:23:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-20 16:23:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-20 16:23:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:23:40,937 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:23:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:23:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:23:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:23:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:23:40,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:23:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:23:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:23:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:23:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:23:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:23:40,939 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:23:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:23:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:23:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:23:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:23:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:23:40,940 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:23:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:23:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:23:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:23:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:23:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:23:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 16:23:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:23:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:23:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:23:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:23:40,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:23:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:23:40,944 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 16:23:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:23:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:23:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:23:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:23:40,944 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-20 16:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-20 16:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:23:40,945 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:23:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:23:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:23:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:23:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:23:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:23:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:23:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:23:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:23:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:23:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:23:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:23:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:23:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:23:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:23:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 16:23:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:23:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:23:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:23:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:23:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:23:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:23:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:23:41,984 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:23:41,985 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:23:41,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:23:41 BoogieIcfgContainer [2020-07-20 16:23:41,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:23:41,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:23:41,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:23:41,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:23:41,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:23:40" (1/3) ... [2020-07-20 16:23:41,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd1cac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:23:41, skipping insertion in model container [2020-07-20 16:23:41,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:23:40" (2/3) ... [2020-07-20 16:23:41,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fd1cac9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:23:41, skipping insertion in model container [2020-07-20 16:23:41,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:23:41" (3/3) ... [2020-07-20 16:23:41,999 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2020-07-20 16:23:42,010 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:23:42,017 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:23:42,032 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:23:42,058 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:23:42,058 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:23:42,059 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:23:42,059 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:23:42,059 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:23:42,059 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:23:42,060 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:23:42,060 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:23:42,085 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states. [2020-07-20 16:23:42,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:23:42,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:42,097 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:42,097 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:42,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:42,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1299073538, now seen corresponding path program 1 times [2020-07-20 16:23:42,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:42,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1292934370] [2020-07-20 16:23:42,115 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:42,579 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:42,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:42,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:23:42,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:42,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:42,628 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:42,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1292934370] [2020-07-20 16:23:42,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:42,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:23:42,631 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18588656] [2020-07-20 16:23:42,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:23:42,637 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:42,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:23:42,651 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:23:42,653 INFO L87 Difference]: Start difference. First operand 198 states. Second operand 2 states. [2020-07-20 16:23:42,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:42,704 INFO L93 Difference]: Finished difference Result 306 states and 383 transitions. [2020-07-20 16:23:42,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:23:42,706 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-20 16:23:42,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:42,725 INFO L225 Difference]: With dead ends: 306 [2020-07-20 16:23:42,725 INFO L226 Difference]: Without dead ends: 155 [2020-07-20 16:23:42,735 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:23:42,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2020-07-20 16:23:42,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2020-07-20 16:23:42,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-20 16:23:42,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 185 transitions. [2020-07-20 16:23:42,800 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 185 transitions. Word has length 51 [2020-07-20 16:23:42,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:42,801 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 185 transitions. [2020-07-20 16:23:42,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:23:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 185 transitions. [2020-07-20 16:23:42,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 16:23:42,805 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:42,806 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:43,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:43,014 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:43,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:43,016 INFO L82 PathProgramCache]: Analyzing trace with hash -155172335, now seen corresponding path program 1 times [2020-07-20 16:23:43,016 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:43,017 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1169960522] [2020-07-20 16:23:43,017 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:43,444 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:43,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:43,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:23:43,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:43,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:43,494 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:43,495 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1169960522] [2020-07-20 16:23:43,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:43,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:43,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512981590] [2020-07-20 16:23:43,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:43,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:43,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:43,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:43,499 INFO L87 Difference]: Start difference. First operand 155 states and 185 transitions. Second operand 3 states. [2020-07-20 16:23:43,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:43,523 INFO L93 Difference]: Finished difference Result 255 states and 305 transitions. [2020-07-20 16:23:43,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:43,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 16:23:43,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:43,527 INFO L225 Difference]: With dead ends: 255 [2020-07-20 16:23:43,527 INFO L226 Difference]: Without dead ends: 146 [2020-07-20 16:23:43,529 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:43,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-20 16:23:43,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-20 16:23:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-20 16:23:43,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 173 transitions. [2020-07-20 16:23:43,557 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 173 transitions. Word has length 52 [2020-07-20 16:23:43,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:43,559 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 173 transitions. [2020-07-20 16:23:43,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:43,560 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 173 transitions. [2020-07-20 16:23:43,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-20 16:23:43,564 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:43,564 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] [2020-07-20 16:23:43,777 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:43,778 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:43,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:43,778 INFO L82 PathProgramCache]: Analyzing trace with hash -1504957008, now seen corresponding path program 1 times [2020-07-20 16:23:43,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:43,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252598439] [2020-07-20 16:23:43,779 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:44,188 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:44,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:44,194 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:23:44,198 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:44,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:44,219 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:44,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252598439] [2020-07-20 16:23:44,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:44,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:44,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67625234] [2020-07-20 16:23:44,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:44,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:44,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:44,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:44,222 INFO L87 Difference]: Start difference. First operand 146 states and 173 transitions. Second operand 3 states. [2020-07-20 16:23:44,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:44,245 INFO L93 Difference]: Finished difference Result 264 states and 319 transitions. [2020-07-20 16:23:44,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:44,245 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 56 [2020-07-20 16:23:44,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:44,247 INFO L225 Difference]: With dead ends: 264 [2020-07-20 16:23:44,248 INFO L226 Difference]: Without dead ends: 146 [2020-07-20 16:23:44,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:44,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-20 16:23:44,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-20 16:23:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-20 16:23:44,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 172 transitions. [2020-07-20 16:23:44,263 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 172 transitions. Word has length 56 [2020-07-20 16:23:44,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:44,264 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 172 transitions. [2020-07-20 16:23:44,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:44,264 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 172 transitions. [2020-07-20 16:23:44,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-20 16:23:44,267 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:44,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:44,475 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:44,476 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:44,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:44,477 INFO L82 PathProgramCache]: Analyzing trace with hash -775636071, now seen corresponding path program 1 times [2020-07-20 16:23:44,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:44,478 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444931071] [2020-07-20 16:23:44,478 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:44,923 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:44,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:44,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 684 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:23:44,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:44,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:44,975 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:44,975 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444931071] [2020-07-20 16:23:44,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:44,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:44,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729604304] [2020-07-20 16:23:44,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:44,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:44,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:44,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:44,977 INFO L87 Difference]: Start difference. First operand 146 states and 172 transitions. Second operand 6 states. [2020-07-20 16:23:45,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:45,700 INFO L93 Difference]: Finished difference Result 356 states and 436 transitions. [2020-07-20 16:23:45,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:23:45,707 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2020-07-20 16:23:45,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:45,710 INFO L225 Difference]: With dead ends: 356 [2020-07-20 16:23:45,710 INFO L226 Difference]: Without dead ends: 238 [2020-07-20 16:23:45,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:23:45,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-07-20 16:23:45,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 223. [2020-07-20 16:23:45,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-07-20 16:23:45,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 253 transitions. [2020-07-20 16:23:45,737 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 253 transitions. Word has length 74 [2020-07-20 16:23:45,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:45,738 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 253 transitions. [2020-07-20 16:23:45,738 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 253 transitions. [2020-07-20 16:23:45,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-20 16:23:45,740 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:45,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:45,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:45,954 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:45,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:45,955 INFO L82 PathProgramCache]: Analyzing trace with hash 2094752105, now seen corresponding path program 1 times [2020-07-20 16:23:45,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:45,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1464654266] [2020-07-20 16:23:45,956 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:46,321 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:46,321 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:46,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 16:23:46,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:46,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:46,386 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:46,386 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1464654266] [2020-07-20 16:23:46,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:46,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:46,387 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159059275] [2020-07-20 16:23:46,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:46,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:46,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:46,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:46,389 INFO L87 Difference]: Start difference. First operand 223 states and 253 transitions. Second operand 6 states. [2020-07-20 16:23:46,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:46,671 INFO L93 Difference]: Finished difference Result 600 states and 701 transitions. [2020-07-20 16:23:46,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:23:46,671 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-07-20 16:23:46,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:46,676 INFO L225 Difference]: With dead ends: 600 [2020-07-20 16:23:46,676 INFO L226 Difference]: Without dead ends: 405 [2020-07-20 16:23:46,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:46,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2020-07-20 16:23:46,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2020-07-20 16:23:46,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-07-20 16:23:46,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 456 transitions. [2020-07-20 16:23:46,739 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 456 transitions. Word has length 88 [2020-07-20 16:23:46,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:46,742 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 456 transitions. [2020-07-20 16:23:46,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:46,743 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 456 transitions. [2020-07-20 16:23:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-07-20 16:23:46,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:46,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:46,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:46,961 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:46,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:46,962 INFO L82 PathProgramCache]: Analyzing trace with hash 1169136517, now seen corresponding path program 1 times [2020-07-20 16:23:46,962 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:46,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1269062994] [2020-07-20 16:23:46,963 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:47,326 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:23:47,326 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:47,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 16:23:47,334 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:23:47,384 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:47,384 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1269062994] [2020-07-20 16:23:47,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:47,385 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:23:47,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421372188] [2020-07-20 16:23:47,386 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:23:47,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:47,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:23:47,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:47,388 INFO L87 Difference]: Start difference. First operand 401 states and 456 transitions. Second operand 3 states. [2020-07-20 16:23:47,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:47,446 INFO L93 Difference]: Finished difference Result 738 states and 862 transitions. [2020-07-20 16:23:47,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:23:47,447 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 92 [2020-07-20 16:23:47,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:47,456 INFO L225 Difference]: With dead ends: 738 [2020-07-20 16:23:47,457 INFO L226 Difference]: Without dead ends: 735 [2020-07-20 16:23:47,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:23:47,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states. [2020-07-20 16:23:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 597. [2020-07-20 16:23:47,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 597 states. [2020-07-20 16:23:47,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 597 states to 597 states and 697 transitions. [2020-07-20 16:23:47,536 INFO L78 Accepts]: Start accepts. Automaton has 597 states and 697 transitions. Word has length 92 [2020-07-20 16:23:47,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:47,537 INFO L479 AbstractCegarLoop]: Abstraction has 597 states and 697 transitions. [2020-07-20 16:23:47,537 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:23:47,537 INFO L276 IsEmpty]: Start isEmpty. Operand 597 states and 697 transitions. [2020-07-20 16:23:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-20 16:23:47,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:47,541 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 16:23:47,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:47,755 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:47,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:47,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1897187895, now seen corresponding path program 1 times [2020-07-20 16:23:47,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:47,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1631344450] [2020-07-20 16:23:47,757 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:48,083 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:48,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:48,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:23:48,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:48,144 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 16:23:48,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:48,145 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1631344450] [2020-07-20 16:23:48,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:48,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:48,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178461925] [2020-07-20 16:23:48,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:48,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:48,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:48,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:48,147 INFO L87 Difference]: Start difference. First operand 597 states and 697 transitions. Second operand 6 states. [2020-07-20 16:23:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:48,626 INFO L93 Difference]: Finished difference Result 1080 states and 1265 transitions. [2020-07-20 16:23:48,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:23:48,627 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2020-07-20 16:23:48,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:48,630 INFO L225 Difference]: With dead ends: 1080 [2020-07-20 16:23:48,630 INFO L226 Difference]: Without dead ends: 511 [2020-07-20 16:23:48,632 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:48,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2020-07-20 16:23:48,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 501. [2020-07-20 16:23:48,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-07-20 16:23:48,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 575 transitions. [2020-07-20 16:23:48,663 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 575 transitions. Word has length 154 [2020-07-20 16:23:48,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:48,663 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 575 transitions. [2020-07-20 16:23:48,664 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:48,664 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 575 transitions. [2020-07-20 16:23:48,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-20 16:23:48,667 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:48,667 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:48,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:48,882 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:48,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:48,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1213167024, now seen corresponding path program 1 times [2020-07-20 16:23:48,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:48,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926918543] [2020-07-20 16:23:48,884 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:49,311 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:49,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:49,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:23:49,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:49,418 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2020-07-20 16:23:49,418 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:49,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926918543] [2020-07-20 16:23:49,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:49,419 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:23:49,419 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747252875] [2020-07-20 16:23:49,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:23:49,420 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:49,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:23:49,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:49,421 INFO L87 Difference]: Start difference. First operand 501 states and 575 transitions. Second operand 8 states. [2020-07-20 16:23:49,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:49,889 INFO L93 Difference]: Finished difference Result 955 states and 1108 transitions. [2020-07-20 16:23:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:23:49,891 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2020-07-20 16:23:49,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:49,894 INFO L225 Difference]: With dead ends: 955 [2020-07-20 16:23:49,895 INFO L226 Difference]: Without dead ends: 482 [2020-07-20 16:23:49,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:49,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-07-20 16:23:49,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 478. [2020-07-20 16:23:49,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-07-20 16:23:49,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 544 transitions. [2020-07-20 16:23:49,926 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 544 transitions. Word has length 184 [2020-07-20 16:23:49,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:49,926 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 544 transitions. [2020-07-20 16:23:49,927 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:23:49,927 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 544 transitions. [2020-07-20 16:23:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-20 16:23:49,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:49,932 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 16:23:50,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:50,146 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:50,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:50,147 INFO L82 PathProgramCache]: Analyzing trace with hash 636040609, now seen corresponding path program 1 times [2020-07-20 16:23:50,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:50,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563609431] [2020-07-20 16:23:50,149 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:50,411 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 16:23:50,412 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:50,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:23:50,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:50,495 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-07-20 16:23:50,496 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:50,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563609431] [2020-07-20 16:23:50,496 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:50,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:50,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [564136321] [2020-07-20 16:23:50,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:50,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:50,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:50,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:50,499 INFO L87 Difference]: Start difference. First operand 478 states and 544 transitions. Second operand 6 states. [2020-07-20 16:23:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:50,554 INFO L93 Difference]: Finished difference Result 942 states and 1088 transitions. [2020-07-20 16:23:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:23:50,555 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 253 [2020-07-20 16:23:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:50,564 INFO L225 Difference]: With dead ends: 942 [2020-07-20 16:23:50,565 INFO L226 Difference]: Without dead ends: 492 [2020-07-20 16:23:50,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:23:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2020-07-20 16:23:50,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 488. [2020-07-20 16:23:50,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 488 states. [2020-07-20 16:23:50,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 554 transitions. [2020-07-20 16:23:50,595 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 554 transitions. Word has length 253 [2020-07-20 16:23:50,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:50,596 INFO L479 AbstractCegarLoop]: Abstraction has 488 states and 554 transitions. [2020-07-20 16:23:50,596 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:50,596 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 554 transitions. [2020-07-20 16:23:50,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-20 16:23:50,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:50,601 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 16:23:50,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:50,816 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:50,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:50,817 INFO L82 PathProgramCache]: Analyzing trace with hash -1088801629, now seen corresponding path program 1 times [2020-07-20 16:23:50,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:50,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1231158432] [2020-07-20 16:23:50,818 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:51,006 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:23:51,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:51,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:23:51,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:51,077 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2020-07-20 16:23:51,078 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:51,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1231158432] [2020-07-20 16:23:51,078 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:51,078 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:23:51,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470382114] [2020-07-20 16:23:51,079 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:23:51,079 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:51,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:23:51,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:23:51,080 INFO L87 Difference]: Start difference. First operand 488 states and 554 transitions. Second operand 5 states. [2020-07-20 16:23:51,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:51,116 INFO L93 Difference]: Finished difference Result 962 states and 1110 transitions. [2020-07-20 16:23:51,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:23:51,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 253 [2020-07-20 16:23:51,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:51,120 INFO L225 Difference]: With dead ends: 962 [2020-07-20 16:23:51,120 INFO L226 Difference]: Without dead ends: 502 [2020-07-20 16:23:51,121 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:23:51,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-07-20 16:23:51,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 496. [2020-07-20 16:23:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 496 states. [2020-07-20 16:23:51,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 562 transitions. [2020-07-20 16:23:51,145 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 562 transitions. Word has length 253 [2020-07-20 16:23:51,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:51,145 INFO L479 AbstractCegarLoop]: Abstraction has 496 states and 562 transitions. [2020-07-20 16:23:51,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:23:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 562 transitions. [2020-07-20 16:23:51,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-20 16:23:51,150 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:51,150 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 16:23:51,363 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:51,364 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:51,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:51,364 INFO L82 PathProgramCache]: Analyzing trace with hash 74779556, now seen corresponding path program 1 times [2020-07-20 16:23:51,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:51,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [767169528] [2020-07-20 16:23:51,366 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:51,702 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-20 16:23:51,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:51,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 913 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:23:51,715 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:51,849 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-07-20 16:23:51,850 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:51,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [767169528] [2020-07-20 16:23:51,850 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:51,851 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:23:51,851 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148137327] [2020-07-20 16:23:51,852 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:23:51,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:51,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:23:51,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:23:51,853 INFO L87 Difference]: Start difference. First operand 496 states and 562 transitions. Second operand 6 states. [2020-07-20 16:23:53,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:53,044 INFO L93 Difference]: Finished difference Result 1529 states and 1871 transitions. [2020-07-20 16:23:53,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:23:53,045 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 253 [2020-07-20 16:23:53,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:53,055 INFO L225 Difference]: With dead ends: 1529 [2020-07-20 16:23:53,055 INFO L226 Difference]: Without dead ends: 1061 [2020-07-20 16:23:53,061 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:23:53,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1061 states. [2020-07-20 16:23:53,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1061 to 1022. [2020-07-20 16:23:53,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1022 states. [2020-07-20 16:23:53,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1214 transitions. [2020-07-20 16:23:53,202 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1214 transitions. Word has length 253 [2020-07-20 16:23:53,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:53,202 INFO L479 AbstractCegarLoop]: Abstraction has 1022 states and 1214 transitions. [2020-07-20 16:23:53,202 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:23:53,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1214 transitions. [2020-07-20 16:23:53,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-20 16:23:53,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:23:53,209 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:23:53,420 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:53,421 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:23:53,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:23:53,422 INFO L82 PathProgramCache]: Analyzing trace with hash -56311766, now seen corresponding path program 1 times [2020-07-20 16:23:53,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:23:53,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [528657754] [2020-07-20 16:23:53,423 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:53,838 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:23:53,838 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:23:53,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:23:53,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:23:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2020-07-20 16:23:53,961 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:23:53,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [528657754] [2020-07-20 16:23:53,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:23:53,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:23:53,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353305507] [2020-07-20 16:23:53,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:23:53,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:23:53,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:23:53,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:53,964 INFO L87 Difference]: Start difference. First operand 1022 states and 1214 transitions. Second operand 8 states. [2020-07-20 16:23:54,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:23:54,399 INFO L93 Difference]: Finished difference Result 1702 states and 2031 transitions. [2020-07-20 16:23:54,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:23:54,400 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 257 [2020-07-20 16:23:54,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:23:54,401 INFO L225 Difference]: With dead ends: 1702 [2020-07-20 16:23:54,401 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 16:23:54,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 249 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:23:54,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 16:23:54,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 16:23:54,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 16:23:54,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 16:23:54,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 257 [2020-07-20 16:23:54,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:23:54,409 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 16:23:54,409 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:23:54,410 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 16:23:54,410 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 16:23:54,623 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:23:54,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 16:23:56,294 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2020-07-20 16:23:56,646 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 20 [2020-07-20 16:23:56,964 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 30 [2020-07-20 16:23:57,543 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-07-20 16:23:57,856 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2020-07-20 16:23:58,183 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-20 16:23:58,425 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 22 [2020-07-20 16:23:58,723 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 27 [2020-07-20 16:23:58,874 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 23 [2020-07-20 16:23:59,144 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 28 [2020-07-20 16:23:59,320 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 23 [2020-07-20 16:23:59,434 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 23 [2020-07-20 16:23:59,585 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 28 [2020-07-20 16:23:59,728 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-07-20 16:23:59,853 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 23 [2020-07-20 16:24:00,438 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 42 [2020-07-20 16:24:00,681 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 26 [2020-07-20 16:24:01,422 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 23 [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L286(lines 263 287) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 239 294) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L270(lines 270 274) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L270-1(lines 270 274) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L265(line 265) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 239 294) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L264-2(lines 264 285) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 239 294) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L321-2(lines 321 346) no Hoare annotation was computed. [2020-07-20 16:24:01,675 INFO L268 CegarLoopResult]: For program point L347(lines 320 348) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 295 354) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point L340(line 340) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point L340-1(line 340) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 295 354) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 295 354) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point L327(lines 327 331) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point L327-1(lines 327 331) no Hoare annotation was computed. [2020-07-20 16:24:01,676 INFO L268 CegarLoopResult]: For program point L322(line 322) no Hoare annotation was computed. [2020-07-20 16:24:01,677 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 580 586) the Hoare annotation is: true [2020-07-20 16:24:01,677 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 580 586) no Hoare annotation was computed. [2020-07-20 16:24:01,677 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 587 595) no Hoare annotation was computed. [2020-07-20 16:24:01,677 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 587 595) the Hoare annotation is: true [2020-07-20 16:24:01,678 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 587 595) no Hoare annotation was computed. [2020-07-20 16:24:01,678 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 163 185) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,678 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 163 185) no Hoare annotation was computed. [2020-07-20 16:24:01,678 INFO L264 CegarLoopResult]: At program point L175(line 175) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,679 INFO L264 CegarLoopResult]: At program point L175-1(line 175) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,679 INFO L268 CegarLoopResult]: For program point L173(lines 173 180) no Hoare annotation was computed. [2020-07-20 16:24:01,679 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 163 185) no Hoare annotation was computed. [2020-07-20 16:24:01,679 INFO L268 CegarLoopResult]: For program point L173-1(lines 173 180) no Hoare annotation was computed. [2020-07-20 16:24:01,679 INFO L268 CegarLoopResult]: For program point L171(line 171) no Hoare annotation was computed. [2020-07-20 16:24:01,679 INFO L264 CegarLoopResult]: At program point L170(line 170) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,679 INFO L264 CegarLoopResult]: At program point L169(line 169) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,680 INFO L264 CegarLoopResult]: At program point L169-1(line 169) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 117 140) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 117 140) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 117 140) no Hoare annotation was computed. [2020-07-20 16:24:01,680 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L135(line 135) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L132(line 132) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L264 CegarLoopResult]: At program point L852(line 852) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse1 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-20 16:24:01,681 INFO L268 CegarLoopResult]: For program point L852-1(lines 833 857) no Hoare annotation was computed. [2020-07-20 16:24:01,681 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 833 857) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 16:24:01,682 INFO L264 CegarLoopResult]: At program point L847(line 847) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse0 .cse1 .cse2))) [2020-07-20 16:24:01,682 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 833 857) no Hoare annotation was computed. [2020-07-20 16:24:01,682 INFO L264 CegarLoopResult]: At program point L843(line 843) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse0 .cse1 .cse2))) [2020-07-20 16:24:01,682 INFO L268 CegarLoopResult]: For program point L841(lines 841 849) no Hoare annotation was computed. [2020-07-20 16:24:01,682 INFO L264 CegarLoopResult]: At program point L839(line 839) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse0 .cse1 .cse2))) [2020-07-20 16:24:01,682 INFO L268 CegarLoopResult]: For program point L839-1(line 839) no Hoare annotation was computed. [2020-07-20 16:24:01,682 INFO L268 CegarLoopResult]: For program point L837(lines 837 854) no Hoare annotation was computed. [2020-07-20 16:24:01,683 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 928 936) no Hoare annotation was computed. [2020-07-20 16:24:01,683 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 928 936) the Hoare annotation is: true [2020-07-20 16:24:01,683 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 928 936) no Hoare annotation was computed. [2020-07-20 16:24:01,683 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 992 1010) the Hoare annotation is: true [2020-07-20 16:24:01,683 INFO L268 CegarLoopResult]: For program point L1001(lines 1001 1005) no Hoare annotation was computed. [2020-07-20 16:24:01,683 INFO L271 CegarLoopResult]: At program point L999(line 999) the Hoare annotation is: true [2020-07-20 16:24:01,683 INFO L268 CegarLoopResult]: For program point L1001-2(lines 1001 1005) no Hoare annotation was computed. [2020-07-20 16:24:01,683 INFO L268 CegarLoopResult]: For program point L999-1(line 999) no Hoare annotation was computed. [2020-07-20 16:24:01,683 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 992 1010) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 992 1010) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point L956(lines 956 964) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point L956-2(lines 956 964) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point L944(lines 944 952) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 937 972) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point L944-2(lines 944 952) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point L967(line 967) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 937 972) no Hoare annotation was computed. [2020-07-20 16:24:01,684 INFO L268 CegarLoopResult]: For program point L967-1(line 967) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 937 972) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 573 579) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 573 579) the Hoare annotation is: true [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 193 238) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 193 238) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 193 238) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 506 551) no Hoare annotation was computed. [2020-07-20 16:24:01,685 INFO L268 CegarLoopResult]: For program point L526(lines 526 533) no Hoare annotation was computed. [2020-07-20 16:24:01,686 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 506 551) no Hoare annotation was computed. [2020-07-20 16:24:01,686 INFO L268 CegarLoopResult]: For program point L520(lines 520 540) no Hoare annotation was computed. [2020-07-20 16:24:01,686 INFO L268 CegarLoopResult]: For program point L520-1(lines 520 540) no Hoare annotation was computed. [2020-07-20 16:24:01,686 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 506 551) no Hoare annotation was computed. [2020-07-20 16:24:01,686 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 149 159) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,686 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 149 159) no Hoare annotation was computed. [2020-07-20 16:24:01,686 INFO L264 CegarLoopResult]: At program point L154(line 154) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,687 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 149 159) no Hoare annotation was computed. [2020-07-20 16:24:01,687 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 917 927) the Hoare annotation is: true [2020-07-20 16:24:01,687 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 917 927) no Hoare annotation was computed. [2020-07-20 16:24:01,687 INFO L271 CegarLoopResult]: At program point L922(line 922) the Hoare annotation is: true [2020-07-20 16:24:01,687 INFO L268 CegarLoopResult]: For program point L922-1(line 922) no Hoare annotation was computed. [2020-07-20 16:24:01,687 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 917 927) no Hoare annotation was computed. [2020-07-20 16:24:01,687 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 909 916) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= 0 ~methAndRunningLastTime~0)) .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:24:01,688 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 909 916) no Hoare annotation was computed. [2020-07-20 16:24:01,688 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 909 916) no Hoare annotation was computed. [2020-07-20 16:24:01,688 INFO L268 CegarLoopResult]: For program point L750(lines 750 756) no Hoare annotation was computed. [2020-07-20 16:24:01,688 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 746 759) no Hoare annotation was computed. [2020-07-20 16:24:01,688 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 746 759) the Hoare annotation is: true [2020-07-20 16:24:01,688 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 746 759) no Hoare annotation was computed. [2020-07-20 16:24:01,688 INFO L264 CegarLoopResult]: At program point L865(line 865) the Hoare annotation is: (let ((.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5) (or .cse1 .cse3 .cse5) (or .cse0 .cse1 .cse2 .cse4))) [2020-07-20 16:24:01,688 INFO L268 CegarLoopResult]: For program point L865-1(line 865) no Hoare annotation was computed. [2020-07-20 16:24:01,689 INFO L268 CegarLoopResult]: For program point L863(lines 863 880) no Hoare annotation was computed. [2020-07-20 16:24:01,689 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 859 883) no Hoare annotation was computed. [2020-07-20 16:24:01,689 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 859 883) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2020-07-20 16:24:01,689 INFO L264 CegarLoopResult]: At program point L878(line 878) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methAndRunningLastTime~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (= 0 ~pumpRunning~0)) (.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse2 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse2 .cse4 .cse5) (or .cse1 .cse2 .cse3 .cse5) (or .cse0 .cse2 .cse4))) [2020-07-20 16:24:01,689 INFO L268 CegarLoopResult]: For program point L878-1(lines 859 883) no Hoare annotation was computed. [2020-07-20 16:24:01,689 INFO L264 CegarLoopResult]: At program point L873(line 873) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0))))) [2020-07-20 16:24:01,690 INFO L264 CegarLoopResult]: At program point L869(line 869) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 .cse5) (or .cse0 .cse1 .cse2 (and .cse4 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~8))) (or .cse1 .cse3 .cse5))) [2020-07-20 16:24:01,690 INFO L268 CegarLoopResult]: For program point L867(lines 867 875) no Hoare annotation was computed. [2020-07-20 16:24:01,690 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 799 805) no Hoare annotation was computed. [2020-07-20 16:24:01,690 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 799 805) the Hoare annotation is: true [2020-07-20 16:24:01,690 INFO L268 CegarLoopResult]: For program point L609(lines 609 613) no Hoare annotation was computed. [2020-07-20 16:24:01,690 INFO L264 CegarLoopResult]: At program point testENTRY(lines 597 660) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,690 INFO L268 CegarLoopResult]: For program point testFINAL(lines 597 660) no Hoare annotation was computed. [2020-07-20 16:24:01,691 INFO L264 CegarLoopResult]: At program point L653(lines 606 654) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 ~systemActive~0))) [2020-07-20 16:24:01,691 INFO L268 CegarLoopResult]: For program point L643(lines 643 647) no Hoare annotation was computed. [2020-07-20 16:24:01,691 INFO L264 CegarLoopResult]: At program point L643-2(lines 637 648) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~methaneLevelCritical~0) .cse0) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2020-07-20 16:24:01,691 INFO L268 CegarLoopResult]: For program point L608(lines 607 652) no Hoare annotation was computed. [2020-07-20 16:24:01,691 INFO L268 CegarLoopResult]: For program point L637(lines 637 648) no Hoare annotation was computed. [2020-07-20 16:24:01,691 INFO L264 CegarLoopResult]: At program point L629(line 629) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse1))) [2020-07-20 16:24:01,691 INFO L268 CegarLoopResult]: For program point L627(lines 627 633) no Hoare annotation was computed. [2020-07-20 16:24:01,691 INFO L268 CegarLoopResult]: For program point L627-1(lines 627 633) no Hoare annotation was computed. [2020-07-20 16:24:01,692 INFO L264 CegarLoopResult]: At program point L619(line 619) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse1))) [2020-07-20 16:24:01,692 INFO L264 CegarLoopResult]: At program point L650(lines 607 652) the Hoare annotation is: (let ((.cse0 (= 0 ~methAndRunningLastTime~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse0 (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse1))) [2020-07-20 16:24:01,692 INFO L268 CegarLoopResult]: For program point L617(lines 617 623) no Hoare annotation was computed. [2020-07-20 16:24:01,692 INFO L268 CegarLoopResult]: For program point L617-1(lines 617 623) no Hoare annotation was computed. [2020-07-20 16:24:01,692 INFO L268 CegarLoopResult]: For program point testEXIT(lines 597 660) no Hoare annotation was computed. [2020-07-20 16:24:01,692 INFO L268 CegarLoopResult]: For program point L480(lines 480 487) no Hoare annotation was computed. [2020-07-20 16:24:01,692 INFO L268 CegarLoopResult]: For program point L474(lines 474 494) no Hoare annotation was computed. [2020-07-20 16:24:01,692 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 460 505) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point L474-1(lines 474 494) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 460 505) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 460 505) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 884 891) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 884 891) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 884 891) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 760 768) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 760 768) the Hoare annotation is: true [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 760 768) no Hoare annotation was computed. [2020-07-20 16:24:01,693 INFO L268 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-07-20 16:24:01,694 INFO L268 CegarLoopResult]: For program point L64(lines 64 74) no Hoare annotation was computed. [2020-07-20 16:24:01,694 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 ~methaneLevelCritical~0))) [2020-07-20 16:24:01,694 INFO L268 CegarLoopResult]: For program point L62-1(line 62) no Hoare annotation was computed. [2020-07-20 16:24:01,694 INFO L268 CegarLoopResult]: For program point L60(lines 60 77) no Hoare annotation was computed. [2020-07-20 16:24:01,694 INFO L268 CegarLoopResult]: For program point L60-1(lines 52 80) no Hoare annotation was computed. [2020-07-20 16:24:01,694 INFO L264 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (<= 2 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,694 INFO L268 CegarLoopResult]: For program point L58-1(line 58) no Hoare annotation was computed. [2020-07-20 16:24:01,694 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 52 80) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (<= 2 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,694 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 52 80) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L264 CegarLoopResult]: At program point L67(line 67) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 ~pumpRunning~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:24:01,695 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 44 51) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 44 51) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 44 51) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point L722-2(lines 722 730) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 714 736) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 714 736) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 714 736) no Hoare annotation was computed. [2020-07-20 16:24:01,695 INFO L268 CegarLoopResult]: For program point L722(lines 722 730) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 357 459) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L446(lines 446 453) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L407(lines 406 426) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L438(line 438) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L438-1(line 438) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L403(lines 403 444) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 357 459) no Hoare annotation was computed. [2020-07-20 16:24:01,696 INFO L268 CegarLoopResult]: For program point L422-1(line 422) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point L381(lines 381 385) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point L445(lines 445 456) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point L408(lines 408 412) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point L406-2(lines 406 426) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 357 459) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point L427(lines 405 428) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point L386(lines 386 402) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 563 572) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 563 572) no Hoare annotation was computed. [2020-07-20 16:24:01,697 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 563 572) no Hoare annotation was computed. [2020-07-20 16:24:01,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,698 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-20 16:24:01,698 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,698 INFO L264 CegarLoopResult]: At program point L897(line 897) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:24:01,698 INFO L268 CegarLoopResult]: For program point L897-1(line 897) no Hoare annotation was computed. [2020-07-20 16:24:01,698 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 892 908) no Hoare annotation was computed. [2020-07-20 16:24:01,698 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 892 908) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:24:01,699 INFO L264 CegarLoopResult]: At program point L903(line 903) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) .cse2) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point L903-1(lines 892 908) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point L899(lines 899 905) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 737 745) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 737 745) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 737 745) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 973 991) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L268 CegarLoopResult]: For program point L982(lines 982 986) no Hoare annotation was computed. [2020-07-20 16:24:01,699 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 973 991) the Hoare annotation is: true [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 973 991) no Hoare annotation was computed. [2020-07-20 16:24:01,700 INFO L271 CegarLoopResult]: At program point L980(line 980) the Hoare annotation is: true [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point L982-2(lines 982 986) no Hoare annotation was computed. [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point L980-1(line 980) no Hoare annotation was computed. [2020-07-20 16:24:01,700 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 693 704) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= 0 ~methaneLevelCritical~0) (not (= |old(~methaneLevelCritical~0)| 0))) (or .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~methaneLevelCritical~0)|))))) [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point L697-1(lines 693 704) no Hoare annotation was computed. [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 693 704) no Hoare annotation was computed. [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,700 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,701 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,701 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 705 713) the Hoare annotation is: true [2020-07-20 16:24:01,701 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 705 713) no Hoare annotation was computed. [2020-07-20 16:24:01,701 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 705 713) no Hoare annotation was computed. [2020-07-20 16:24:01,701 INFO L264 CegarLoopResult]: At program point L788(line 788) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 (and (= 0 ~methAndRunningLastTime~0) .cse3 .cse4)) (or .cse0 .cse5 (and .cse3 .cse4)) (or .cse0 .cse6 .cse7 .cse5 .cse8) (or .cse0 .cse6 .cse1 .cse2 .cse7 .cse8))) [2020-07-20 16:24:01,701 INFO L264 CegarLoopResult]: At program point L786(lines 786 792) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (<= 2 ~waterLevel~0)) (.cse6 (not .cse0)) (.cse7 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse9 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse4 (and .cse3 (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse4) (or .cse1 (and .cse5 .cse3) .cse6 .cse2 .cse7) (or .cse1 (= 0 ~methAndRunningLastTime~0) .cse8 .cse9 .cse6) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse6 .cse2 .cse4) (or .cse1 .cse5 .cse8 .cse9 .cse6 .cse7) (or .cse1 .cse8 .cse9 .cse4)))) [2020-07-20 16:24:01,702 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 775 798) the Hoare annotation is: (let ((.cse7 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (<= 2 ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse9 (not .cse7)) (.cse8 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 (and (= 0 ~methAndRunningLastTime~0) .cse5 .cse6)) (or .cse7 .cse0 .cse8 (and .cse5 .cse6)) (or .cse0 .cse1 .cse9 .cse8 .cse4) (or .cse7 .cse0 .cse1 .cse8 .cse4) (or .cse0 .cse9 .cse8 (and .cse5 (= 0 ~pumpRunning~0)))))) [2020-07-20 16:24:01,702 INFO L264 CegarLoopResult]: At program point L781(line 781) the Hoare annotation is: (let ((.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (<= 2 ~waterLevel~0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse7 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 (and (= 0 ~methAndRunningLastTime~0) .cse5 .cse6)) (or .cse0 .cse2 .cse3 .cse7) (or .cse0 .cse8 (and .cse5 .cse6)) (or .cse0 .cse1 .cse8 .cse4) (or .cse0 .cse7 .cse8))) [2020-07-20 16:24:01,702 INFO L268 CegarLoopResult]: For program point L779(lines 778 797) no Hoare annotation was computed. [2020-07-20 16:24:01,702 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 775 798) no Hoare annotation was computed. [2020-07-20 16:24:01,702 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 775 798) no Hoare annotation was computed. [2020-07-20 16:24:01,702 INFO L271 CegarLoopResult]: At program point L98-1(lines 98 102) the Hoare annotation is: true [2020-07-20 16:24:01,702 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 84 113) no Hoare annotation was computed. [2020-07-20 16:24:01,703 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-07-20 16:24:01,703 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 84 113) the Hoare annotation is: true [2020-07-20 16:24:01,703 INFO L271 CegarLoopResult]: At program point L94-2(lines 94 108) the Hoare annotation is: true [2020-07-20 16:24:01,703 INFO L271 CegarLoopResult]: At program point L90(line 90) the Hoare annotation is: true [2020-07-20 16:24:01,703 INFO L268 CegarLoopResult]: For program point L90-1(line 90) no Hoare annotation was computed. [2020-07-20 16:24:01,703 INFO L271 CegarLoopResult]: At program point L109(lines 84 113) the Hoare annotation is: true [2020-07-20 16:24:01,703 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-07-20 16:24:01,703 INFO L268 CegarLoopResult]: For program point L98(lines 98 102) no Hoare annotation was computed. [2020-07-20 16:24:01,703 INFO L268 CegarLoopResult]: For program point L673-1(lines 669 680) no Hoare annotation was computed. [2020-07-20 16:24:01,704 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 669 680) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (<= 2 ~waterLevel~0)) (.cse7 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse6 .cse7 .cse4) (or .cse0 .cse1 .cse3 .cse6 .cse4) (or .cse1 .cse2 .cse7 .cse4 .cse5))) [2020-07-20 16:24:01,704 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 669 680) no Hoare annotation was computed. [2020-07-20 16:24:01,704 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 141 147) no Hoare annotation was computed. [2020-07-20 16:24:01,704 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 141 147) the Hoare annotation is: true [2020-07-20 16:24:01,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,704 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 16:24:01,704 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 16:24:01,705 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:24:01,705 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 807 831) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 16:24:01,705 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 807 831) no Hoare annotation was computed. [2020-07-20 16:24:01,705 INFO L264 CegarLoopResult]: At program point L826(line 826) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse0 .cse1 .cse2))) [2020-07-20 16:24:01,705 INFO L268 CegarLoopResult]: For program point L826-1(lines 807 831) no Hoare annotation was computed. [2020-07-20 16:24:01,705 INFO L264 CegarLoopResult]: At program point L821(line 821) the Hoare annotation is: (let ((.cse1 (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~6))) (.cse3 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 (not .cse3)) (or .cse3 .cse0 .cse2))) [2020-07-20 16:24:01,705 INFO L264 CegarLoopResult]: At program point L817(line 817) the Hoare annotation is: (let ((.cse1 (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0))) (.cse3 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not .cse3)) (or .cse3 .cse0 .cse2))) [2020-07-20 16:24:01,706 INFO L268 CegarLoopResult]: For program point L815(lines 815 823) no Hoare annotation was computed. [2020-07-20 16:24:01,706 INFO L264 CegarLoopResult]: At program point L813(line 813) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse1 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-20 16:24:01,706 INFO L268 CegarLoopResult]: For program point L813-1(line 813) no Hoare annotation was computed. [2020-07-20 16:24:01,706 INFO L268 CegarLoopResult]: For program point L811(lines 811 828) no Hoare annotation was computed. [2020-07-20 16:24:01,706 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 681 692) no Hoare annotation was computed. [2020-07-20 16:24:01,706 INFO L268 CegarLoopResult]: For program point L685-1(lines 681 692) no Hoare annotation was computed. [2020-07-20 16:24:01,706 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 681 692) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse2 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (not (= 0 ~pumpRunning~0))) (.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse6 (<= 2 ~waterLevel~0)) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse5) (or .cse0 .cse1 .cse6 .cse2 .cse4 .cse7) (or .cse0 .cse1 .cse6 .cse5 .cse7))) [2020-07-20 16:24:01,707 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 553 560) no Hoare annotation was computed. [2020-07-20 16:24:01,707 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2020-07-20 16:24:01,707 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 553 560) the Hoare annotation is: true [2020-07-20 16:24:01,707 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 553 560) no Hoare annotation was computed. [2020-07-20 16:24:01,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:24:01 BoogieIcfgContainer [2020-07-20 16:24:01,724 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:24:01,726 INFO L168 Benchmark]: Toolchain (without parser) took 21628.49 ms. Allocated memory was 138.9 MB in the beginning and 477.6 MB in the end (delta: 338.7 MB). Free memory was 102.3 MB in the beginning and 285.3 MB in the end (delta: -182.9 MB). Peak memory consumption was 324.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:01,727 INFO L168 Benchmark]: CDTParser took 0.25 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. [2020-07-20 16:24:01,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.30 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 102.1 MB in the beginning and 166.6 MB in the end (delta: -64.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:01,728 INFO L168 Benchmark]: Boogie Preprocessor took 89.75 ms. Allocated memory is still 201.3 MB. Free memory was 166.6 MB in the beginning and 162.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:01,729 INFO L168 Benchmark]: RCFGBuilder took 1116.07 ms. Allocated memory was 201.3 MB in the beginning and 235.4 MB in the end (delta: 34.1 MB). Free memory was 162.5 MB in the beginning and 187.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:01,729 INFO L168 Benchmark]: TraceAbstraction took 19732.82 ms. Allocated memory was 235.4 MB in the beginning and 477.6 MB in the end (delta: 242.2 MB). Free memory was 187.3 MB in the beginning and 285.3 MB in the end (delta: -98.0 MB). Peak memory consumption was 312.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:24:01,732 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 683.30 ms. Allocated memory was 138.9 MB in the beginning and 201.3 MB in the end (delta: 62.4 MB). Free memory was 102.1 MB in the beginning and 166.6 MB in the end (delta: -64.5 MB). Peak memory consumption was 27.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.75 ms. Allocated memory is still 201.3 MB. Free memory was 166.6 MB in the beginning and 162.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1116.07 ms. Allocated memory was 201.3 MB in the beginning and 235.4 MB in the end (delta: 34.1 MB). Free memory was 162.5 MB in the beginning and 187.3 MB in the end (delta: -24.8 MB). Peak memory consumption was 80.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19732.82 ms. Allocated memory was 235.4 MB in the beginning and 477.6 MB in the end (delta: 242.2 MB). Free memory was 187.3 MB in the beginning and 285.3 MB in the end (delta: -98.0 MB). Peak memory consumption was 312.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 557]: 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: 94]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= systemActive) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 607]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || ((0 == methaneLevelCritical && 0 == methAndRunningLastTime) && splverifierCounter <= 0)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((0 == methAndRunningLastTime && 1 <= methaneLevelCritical) && 0 == pumpRunning) && splverifierCounter <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 257 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.5s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2454 SDtfs, 1235 SDslu, 4583 SDs, 0 SdLazy, 1738 SolverSat, 366 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1762 GetRequests, 1717 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1022occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 220 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 2180 PreInvPairs, 2268 NumberOfFragments, 2160 HoareAnnotationTreeSize, 2180 FomulaSimplifications, 4062 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 70 FomulaSimplificationsInter, 12769 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1767 NumberOfCodeBlocks, 1141 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 1755 ConstructedInterpolants, 0 QuantifiedInterpolants, 479536 SizeOfPredicates, 26 NumberOfNonLiveVariables, 9254 ConjunctsInSsa, 105 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 849/849 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...