/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:50:52,892 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:50:52,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:50:52,914 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:50:52,914 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:50:52,916 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:50:52,918 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:50:52,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:50:52,934 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:50:52,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:50:52,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:50:52,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:50:52,940 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:50:52,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:50:52,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:50:52,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:50:52,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:50:52,948 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:50:52,950 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:50:52,955 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:50:52,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:50:52,964 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:50:52,965 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:50:52,966 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:50:52,969 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:50:52,969 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:50:52,969 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:50:52,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:50:52,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:50:52,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:50:52,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:50:52,975 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:50:52,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:50:52,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:50:52,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:50:52,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:50:52,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:50:52,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:50:52,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:50:52,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:50:52,981 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:50:52,982 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:50:52,997 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:50:52,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:50:52,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:50:52,998 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:50:52,999 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:50:52,999 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:50:52,999 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:50:52,999 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:50:52,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:50:53,000 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:50:53,000 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:50:53,000 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:50:53,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:50:53,000 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:50:53,001 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:50:53,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:50:53,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:50:53,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:50:53,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:50:53,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:50:53,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:50:53,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:50:53,002 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:50:53,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:50:53,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:50:53,003 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:50:53,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:53,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:50:53,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:50:53,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:50:53,296 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:50:53,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:50:53,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:50:53,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:50:53,315 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:50:53,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-07-21 12:50:53,392 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1c6798d/9e59407ad05943ed98242e31c8bd7c0b/FLAGb7955533e [2020-07-21 12:50:53,926 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:50:53,929 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product62.cil.c [2020-07-21 12:50:53,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1c6798d/9e59407ad05943ed98242e31c8bd7c0b/FLAGb7955533e [2020-07-21 12:50:54,238 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e1c6798d/9e59407ad05943ed98242e31c8bd7c0b [2020-07-21 12:50:54,246 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:50:54,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:50:54,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:50:54,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:50:54,255 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:50:54,256 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,258 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15ad3b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54, skipping insertion in model container [2020-07-21 12:50:54,259 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,267 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:50:54,306 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:50:54,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:50:54,667 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:50:54,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:50:54,901 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:50:54,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54 WrapperNode [2020-07-21 12:50:54,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:50:54,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:50:54,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:50:54,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:50:54,916 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,916 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:54,998 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:55,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... [2020-07-21 12:50:55,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:50:55,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:50:55,012 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:50:55,012 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:50:55,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:50:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:50:55,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:50:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:50:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:50:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:50:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:50:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 12:50:55,086 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:50:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:50:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:50:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:50:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:50:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:50:55,087 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:50:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:50:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:50:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 12:50:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:50:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:50:55,088 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:50:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:50:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:50:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:50:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:50:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:50:55,089 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:50:55,090 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:50:55,091 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:50:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:50:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-21 12:50:55,092 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:50:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:50:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:50:55,092 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:50:55,093 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:50:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:50:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:50:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:50:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 12:50:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-21 12:50:55,094 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:50:55,095 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:50:55,096 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:50:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:50:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:50:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:50:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:50:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:50:55,097 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:50:55,098 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:50:55,099 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:50:55,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:50:56,322 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:50:56,323 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:50:56,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:50:56 BoogieIcfgContainer [2020-07-21 12:50:56,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:50:56,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:50:56,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:50:56,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:50:56,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:50:54" (1/3) ... [2020-07-21 12:50:56,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c9aa58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:50:56, skipping insertion in model container [2020-07-21 12:50:56,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:50:54" (2/3) ... [2020-07-21 12:50:56,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78c9aa58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:50:56, skipping insertion in model container [2020-07-21 12:50:56,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:50:56" (3/3) ... [2020-07-21 12:50:56,337 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product62.cil.c [2020-07-21 12:50:56,347 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:50:56,355 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:50:56,369 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:50:56,394 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:50:56,394 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:50:56,394 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:50:56,395 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:50:56,395 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:50:56,395 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:50:56,395 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:50:56,396 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:50:56,420 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-07-21 12:50:56,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 12:50:56,430 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:56,431 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:56,431 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:56,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:56,437 INFO L82 PathProgramCache]: Analyzing trace with hash 1419538001, now seen corresponding path program 1 times [2020-07-21 12:50:56,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:56,447 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1374879951] [2020-07-21 12:50:56,447 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:56,958 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:56,958 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:56,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:50:56,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:57,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:57,001 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:57,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1374879951] [2020-07-21 12:50:57,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:57,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:50:57,004 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216647444] [2020-07-21 12:50:57,009 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:50:57,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:57,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:50:57,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:50:57,024 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 2 states. [2020-07-21 12:50:57,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:57,071 INFO L93 Difference]: Finished difference Result 308 states and 383 transitions. [2020-07-21 12:50:57,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:50:57,073 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 12:50:57,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:57,086 INFO L225 Difference]: With dead ends: 308 [2020-07-21 12:50:57,087 INFO L226 Difference]: Without dead ends: 154 [2020-07-21 12:50:57,092 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:50:57,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2020-07-21 12:50:57,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2020-07-21 12:50:57,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2020-07-21 12:50:57,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 183 transitions. [2020-07-21 12:50:57,152 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 183 transitions. Word has length 46 [2020-07-21 12:50:57,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:57,152 INFO L479 AbstractCegarLoop]: Abstraction has 154 states and 183 transitions. [2020-07-21 12:50:57,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:50:57,153 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 183 transitions. [2020-07-21 12:50:57,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 12:50:57,157 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:57,157 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:57,371 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:57,372 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:57,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:57,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1353902391, now seen corresponding path program 1 times [2020-07-21 12:50:57,374 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:57,374 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643778476] [2020-07-21 12:50:57,374 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:57,716 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:57,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:57,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:50:57,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:57,759 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:57,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643778476] [2020-07-21 12:50:57,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:57,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:50:57,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722660807] [2020-07-21 12:50:57,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:50:57,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:57,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:50:57,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:57,762 INFO L87 Difference]: Start difference. First operand 154 states and 183 transitions. Second operand 3 states. [2020-07-21 12:50:57,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:57,787 INFO L93 Difference]: Finished difference Result 253 states and 301 transitions. [2020-07-21 12:50:57,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:50:57,788 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 12:50:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:57,791 INFO L225 Difference]: With dead ends: 253 [2020-07-21 12:50:57,791 INFO L226 Difference]: Without dead ends: 145 [2020-07-21 12:50:57,793 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-21 12:50:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-07-21 12:50:57,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-21 12:50:57,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 171 transitions. [2020-07-21 12:50:57,826 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 171 transitions. Word has length 47 [2020-07-21 12:50:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:57,827 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 171 transitions. [2020-07-21 12:50:57,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:50:57,827 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 171 transitions. [2020-07-21 12:50:57,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:50:57,833 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:57,833 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:50:58,047 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:58,048 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:58,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:58,048 INFO L82 PathProgramCache]: Analyzing trace with hash -480372053, now seen corresponding path program 1 times [2020-07-21 12:50:58,049 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:58,049 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [226394083] [2020-07-21 12:50:58,049 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:58,390 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:58,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:58,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:50:58,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:58,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:58,422 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:58,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [226394083] [2020-07-21 12:50:58,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:58,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:50:58,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606312479] [2020-07-21 12:50:58,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:50:58,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:58,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:50:58,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:58,425 INFO L87 Difference]: Start difference. First operand 145 states and 171 transitions. Second operand 3 states. [2020-07-21 12:50:58,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:58,447 INFO L93 Difference]: Finished difference Result 266 states and 319 transitions. [2020-07-21 12:50:58,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:50:58,448 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 12:50:58,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:58,450 INFO L225 Difference]: With dead ends: 266 [2020-07-21 12:50:58,451 INFO L226 Difference]: Without dead ends: 145 [2020-07-21 12:50:58,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:50:58,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2020-07-21 12:50:58,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2020-07-21 12:50:58,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2020-07-21 12:50:58,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 170 transitions. [2020-07-21 12:50:58,471 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 170 transitions. Word has length 52 [2020-07-21 12:50:58,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:58,472 INFO L479 AbstractCegarLoop]: Abstraction has 145 states and 170 transitions. [2020-07-21 12:50:58,472 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:50:58,472 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 170 transitions. [2020-07-21 12:50:58,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-21 12:50:58,476 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:58,476 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] [2020-07-21 12:50:58,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:58,691 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:58,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:58,692 INFO L82 PathProgramCache]: Analyzing trace with hash -1922469070, now seen corresponding path program 1 times [2020-07-21 12:50:58,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:58,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [838899602] [2020-07-21 12:50:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:58,974 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:50:58,974 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:50:58,978 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:50:58,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:50:59,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:50:59,025 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:50:59,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [838899602] [2020-07-21 12:50:59,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:50:59,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:50:59,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126352867] [2020-07-21 12:50:59,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:50:59,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:50:59,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:50:59,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:50:59,027 INFO L87 Difference]: Start difference. First operand 145 states and 170 transitions. Second operand 6 states. [2020-07-21 12:50:59,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:50:59,658 INFO L93 Difference]: Finished difference Result 362 states and 440 transitions. [2020-07-21 12:50:59,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:50:59,659 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-07-21 12:50:59,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:50:59,663 INFO L225 Difference]: With dead ends: 362 [2020-07-21 12:50:59,663 INFO L226 Difference]: Without dead ends: 241 [2020-07-21 12:50:59,665 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:50:59,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2020-07-21 12:50:59,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 225. [2020-07-21 12:50:59,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-21 12:50:59,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 253 transitions. [2020-07-21 12:50:59,692 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 253 transitions. Word has length 70 [2020-07-21 12:50:59,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:50:59,692 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 253 transitions. [2020-07-21 12:50:59,692 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:50:59,693 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 253 transitions. [2020-07-21 12:50:59,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2020-07-21 12:50:59,694 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:50:59,694 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] [2020-07-21 12:50:59,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:50:59,906 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:50:59,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:50:59,907 INFO L82 PathProgramCache]: Analyzing trace with hash 371744810, now seen corresponding path program 1 times [2020-07-21 12:50:59,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:50:59,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834028512] [2020-07-21 12:50:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:00,228 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:00,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:00,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 12:51:00,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:00,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:00,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:00,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834028512] [2020-07-21 12:51:00,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:00,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:00,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104726547] [2020-07-21 12:51:00,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:00,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:00,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:00,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:00,284 INFO L87 Difference]: Start difference. First operand 225 states and 253 transitions. Second operand 6 states. [2020-07-21 12:51:00,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:00,507 INFO L93 Difference]: Finished difference Result 616 states and 713 transitions. [2020-07-21 12:51:00,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:00,507 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 84 [2020-07-21 12:51:00,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:00,512 INFO L225 Difference]: With dead ends: 616 [2020-07-21 12:51:00,512 INFO L226 Difference]: Without dead ends: 415 [2020-07-21 12:51:00,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:00,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-07-21 12:51:00,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 411. [2020-07-21 12:51:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-07-21 12:51:00,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 464 transitions. [2020-07-21 12:51:00,558 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 464 transitions. Word has length 84 [2020-07-21 12:51:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:00,558 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 464 transitions. [2020-07-21 12:51:00,558 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 464 transitions. [2020-07-21 12:51:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2020-07-21 12:51:00,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:00,561 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] [2020-07-21 12:51:00,774 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:00,775 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:00,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:00,775 INFO L82 PathProgramCache]: Analyzing trace with hash 861472934, now seen corresponding path program 1 times [2020-07-21 12:51:00,776 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:00,776 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860444922] [2020-07-21 12:51:00,777 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:01,046 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:01,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:01,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:51:01,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:01,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:01,120 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:01,120 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860444922] [2020-07-21 12:51:01,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:01,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:51:01,121 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290326547] [2020-07-21 12:51:01,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:51:01,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:01,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:51:01,122 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:51:01,122 INFO L87 Difference]: Start difference. First operand 411 states and 464 transitions. Second operand 6 states. [2020-07-21 12:51:01,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:01,364 INFO L93 Difference]: Finished difference Result 418 states and 472 transitions. [2020-07-21 12:51:01,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:51:01,364 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 88 [2020-07-21 12:51:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:01,371 INFO L225 Difference]: With dead ends: 418 [2020-07-21 12:51:01,371 INFO L226 Difference]: Without dead ends: 415 [2020-07-21 12:51:01,372 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 [2020-07-21 12:51:01,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-07-21 12:51:01,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 411. [2020-07-21 12:51:01,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 411 states. [2020-07-21 12:51:01,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 463 transitions. [2020-07-21 12:51:01,425 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 463 transitions. Word has length 88 [2020-07-21 12:51:01,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:01,426 INFO L479 AbstractCegarLoop]: Abstraction has 411 states and 463 transitions. [2020-07-21 12:51:01,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:51:01,427 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 463 transitions. [2020-07-21 12:51:01,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-21 12:51:01,429 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:01,429 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:01,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:01,645 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:01,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:01,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1149093276, now seen corresponding path program 1 times [2020-07-21 12:51:01,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:01,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1390723014] [2020-07-21 12:51:01,646 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:01,923 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:01,923 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:01,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:51:01,931 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:02,007 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:51:02,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:02,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1390723014] [2020-07-21 12:51:02,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:02,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:51:02,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264737412] [2020-07-21 12:51:02,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:51:02,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:02,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:51:02,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:02,011 INFO L87 Difference]: Start difference. First operand 411 states and 463 transitions. Second operand 8 states. [2020-07-21 12:51:02,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:02,406 INFO L93 Difference]: Finished difference Result 783 states and 891 transitions. [2020-07-21 12:51:02,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:51:02,407 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-07-21 12:51:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:02,410 INFO L225 Difference]: With dead ends: 783 [2020-07-21 12:51:02,410 INFO L226 Difference]: Without dead ends: 396 [2020-07-21 12:51:02,412 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:02,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-07-21 12:51:02,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 396. [2020-07-21 12:51:02,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 396 states. [2020-07-21 12:51:02,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 442 transitions. [2020-07-21 12:51:02,450 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 442 transitions. Word has length 104 [2020-07-21 12:51:02,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:02,450 INFO L479 AbstractCegarLoop]: Abstraction has 396 states and 442 transitions. [2020-07-21 12:51:02,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:51:02,451 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 442 transitions. [2020-07-21 12:51:02,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 12:51:02,455 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:02,456 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:02,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:02,660 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:02,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:02,661 INFO L82 PathProgramCache]: Analyzing trace with hash -302167825, now seen corresponding path program 1 times [2020-07-21 12:51:02,661 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:02,662 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1032150806] [2020-07-21 12:51:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:02,917 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:02,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:02,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:51:02,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 12:51:03,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:51:03,185 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:51:03,217 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:51:03,372 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 12:51:03,372 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1032150806] [2020-07-21 12:51:03,372 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 12:51:03,373 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 12:51:03,373 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719530335] [2020-07-21 12:51:03,374 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:51:03,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:03,374 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:51:03,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:51:03,374 INFO L87 Difference]: Start difference. First operand 396 states and 442 transitions. Second operand 5 states. [2020-07-21 12:51:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:03,835 INFO L93 Difference]: Finished difference Result 1022 states and 1183 transitions. [2020-07-21 12:51:03,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:51:03,836 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-07-21 12:51:03,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:03,842 INFO L225 Difference]: With dead ends: 1022 [2020-07-21 12:51:03,842 INFO L226 Difference]: Without dead ends: 650 [2020-07-21 12:51:03,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 335 SyntacticMatches, 7 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:51:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2020-07-21 12:51:03,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2020-07-21 12:51:03,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 650 states. [2020-07-21 12:51:03,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 757 transitions. [2020-07-21 12:51:03,885 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 757 transitions. Word has length 174 [2020-07-21 12:51:03,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:03,885 INFO L479 AbstractCegarLoop]: Abstraction has 650 states and 757 transitions. [2020-07-21 12:51:03,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:51:03,886 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 757 transitions. [2020-07-21 12:51:03,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-07-21 12:51:03,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:51:03,890 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:51:04,102 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:04,103 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:51:04,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:51:04,104 INFO L82 PathProgramCache]: Analyzing trace with hash -981440079, now seen corresponding path program 1 times [2020-07-21 12:51:04,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:51:04,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601939120] [2020-07-21 12:51:04,105 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:04,386 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:51:04,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:51:04,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:51:04,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:51:04,509 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 12:51:04,509 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:51:04,509 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601939120] [2020-07-21 12:51:04,510 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:51:04,510 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:51:04,510 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704326022] [2020-07-21 12:51:04,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:51:04,511 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:51:04,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:51:04,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:04,512 INFO L87 Difference]: Start difference. First operand 650 states and 757 transitions. Second operand 8 states. [2020-07-21 12:51:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:51:04,862 INFO L93 Difference]: Finished difference Result 1202 states and 1414 transitions. [2020-07-21 12:51:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:51:04,867 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 174 [2020-07-21 12:51:04,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:51:04,868 INFO L225 Difference]: With dead ends: 1202 [2020-07-21 12:51:04,869 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:51:04,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 166 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:51:04,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:51:04,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:51:04,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:51:04,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:51:04,873 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2020-07-21 12:51:04,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:51:04,873 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:51:04,873 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:51:04,874 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:51:04,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:51:05,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:51:05,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:51:06,015 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 16 [2020-07-21 12:51:06,144 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-07-21 12:51:06,454 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 28 [2020-07-21 12:51:06,905 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 19 [2020-07-21 12:51:07,075 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 15 [2020-07-21 12:51:07,485 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 26 [2020-07-21 12:51:07,967 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 19 [2020-07-21 12:51:08,310 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-21 12:51:08,438 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 19 [2020-07-21 12:51:09,343 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 26 [2020-07-21 12:51:09,575 INFO L268 CegarLoopResult]: For program point L507(lines 484 508) no Hoare annotation was computed. [2020-07-21 12:51:09,576 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 460 515) no Hoare annotation was computed. [2020-07-21 12:51:09,576 INFO L268 CegarLoopResult]: For program point L491(lines 491 495) no Hoare annotation was computed. [2020-07-21 12:51:09,576 INFO L268 CegarLoopResult]: For program point L491-1(lines 491 495) no Hoare annotation was computed. [2020-07-21 12:51:09,576 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 460 515) no Hoare annotation was computed. [2020-07-21 12:51:09,576 INFO L268 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-07-21 12:51:09,576 INFO L268 CegarLoopResult]: For program point L485-2(lines 485 506) no Hoare annotation was computed. [2020-07-21 12:51:09,577 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 460 515) no Hoare annotation was computed. [2020-07-21 12:51:09,577 INFO L268 CegarLoopResult]: For program point L543(line 543) no Hoare annotation was computed. [2020-07-21 12:51:09,577 INFO L268 CegarLoopResult]: For program point L542-2(lines 542 567) no Hoare annotation was computed. [2020-07-21 12:51:09,577 INFO L268 CegarLoopResult]: For program point L568(lines 541 569) no Hoare annotation was computed. [2020-07-21 12:51:09,578 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 516 575) no Hoare annotation was computed. [2020-07-21 12:51:09,578 INFO L268 CegarLoopResult]: For program point L561(line 561) no Hoare annotation was computed. [2020-07-21 12:51:09,578 INFO L268 CegarLoopResult]: For program point L561-1(line 561) no Hoare annotation was computed. [2020-07-21 12:51:09,578 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 516 575) no Hoare annotation was computed. [2020-07-21 12:51:09,578 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 516 575) no Hoare annotation was computed. [2020-07-21 12:51:09,579 INFO L268 CegarLoopResult]: For program point L548(lines 548 552) no Hoare annotation was computed. [2020-07-21 12:51:09,579 INFO L268 CegarLoopResult]: For program point L548-1(lines 548 552) no Hoare annotation was computed. [2020-07-21 12:51:09,579 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 391 397) the Hoare annotation is: true [2020-07-21 12:51:09,579 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 391 397) no Hoare annotation was computed. [2020-07-21 12:51:09,579 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 398 406) no Hoare annotation was computed. [2020-07-21 12:51:09,579 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 398 406) the Hoare annotation is: true [2020-07-21 12:51:09,579 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 398 406) no Hoare annotation was computed. [2020-07-21 12:51:09,580 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 846 868) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,580 INFO L264 CegarLoopResult]: At program point L858(line 858) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,580 INFO L264 CegarLoopResult]: At program point L858-1(line 858) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,580 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 846 868) no Hoare annotation was computed. [2020-07-21 12:51:09,580 INFO L268 CegarLoopResult]: For program point L856(lines 856 863) no Hoare annotation was computed. [2020-07-21 12:51:09,580 INFO L268 CegarLoopResult]: For program point L856-1(lines 856 863) no Hoare annotation was computed. [2020-07-21 12:51:09,581 INFO L268 CegarLoopResult]: For program point L854(line 854) no Hoare annotation was computed. [2020-07-21 12:51:09,581 INFO L264 CegarLoopResult]: At program point L853(line 853) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,581 INFO L264 CegarLoopResult]: At program point L852(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,581 INFO L264 CegarLoopResult]: At program point L852-1(line 852) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,581 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 846 868) no Hoare annotation was computed. [2020-07-21 12:51:09,581 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 805 828) no Hoare annotation was computed. [2020-07-21 12:51:09,581 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 805 828) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 805 828) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point L823(line 823) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point L822(line 822) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point L821(line 821) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point L820(line 820) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point L819(line 819) no Hoare annotation was computed. [2020-07-21 12:51:09,582 INFO L268 CegarLoopResult]: For program point L818(line 818) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L817(line 817) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L816(line 816) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L815(line 815) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L814(line 814) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-21 12:51:09,583 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-21 12:51:09,584 INFO L264 CegarLoopResult]: At program point L127(line 127) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-21 12:51:09,584 INFO L264 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-21 12:51:09,584 INFO L268 CegarLoopResult]: For program point L121(lines 121 129) no Hoare annotation was computed. [2020-07-21 12:51:09,584 INFO L264 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-21 12:51:09,584 INFO L268 CegarLoopResult]: For program point L119-1(line 119) no Hoare annotation was computed. [2020-07-21 12:51:09,585 INFO L268 CegarLoopResult]: For program point L117(lines 117 134) no Hoare annotation was computed. [2020-07-21 12:51:09,585 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 113 137) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:51:09,585 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 113 137) no Hoare annotation was computed. [2020-07-21 12:51:09,585 INFO L264 CegarLoopResult]: At program point L132(line 132) 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 .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-21 12:51:09,585 INFO L268 CegarLoopResult]: For program point L132-1(lines 113 137) no Hoare annotation was computed. [2020-07-21 12:51:09,585 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 208 216) no Hoare annotation was computed. [2020-07-21 12:51:09,586 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 208 216) the Hoare annotation is: true [2020-07-21 12:51:09,586 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 208 216) no Hoare annotation was computed. [2020-07-21 12:51:09,586 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 272 290) the Hoare annotation is: true [2020-07-21 12:51:09,586 INFO L268 CegarLoopResult]: For program point L281(lines 281 285) no Hoare annotation was computed. [2020-07-21 12:51:09,586 INFO L271 CegarLoopResult]: At program point L279(line 279) the Hoare annotation is: true [2020-07-21 12:51:09,586 INFO L268 CegarLoopResult]: For program point L281-2(lines 281 285) no Hoare annotation was computed. [2020-07-21 12:51:09,586 INFO L268 CegarLoopResult]: For program point L279-1(line 279) no Hoare annotation was computed. [2020-07-21 12:51:09,586 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 272 290) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 272 290) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point L224(lines 224 232) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point L224-2(lines 224 232) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point L247(line 247) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point L247-1(line 247) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 217 252) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point L236(lines 236 244) no Hoare annotation was computed. [2020-07-21 12:51:09,587 INFO L268 CegarLoopResult]: For program point L236-2(lines 236 244) no Hoare annotation was computed. [2020-07-21 12:51:09,588 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 217 252) no Hoare annotation was computed. [2020-07-21 12:51:09,588 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 217 252) no Hoare annotation was computed. [2020-07-21 12:51:09,588 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 384 390) no Hoare annotation was computed. [2020-07-21 12:51:09,588 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 384 390) the Hoare annotation is: true [2020-07-21 12:51:09,588 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 414 459) no Hoare annotation was computed. [2020-07-21 12:51:09,588 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 414 459) no Hoare annotation was computed. [2020-07-21 12:51:09,588 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 414 459) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 727 772) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L268 CegarLoopResult]: For program point L747(lines 747 754) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 727 772) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 727 772) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L268 CegarLoopResult]: For program point L741(lines 741 761) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L268 CegarLoopResult]: For program point L741-1(lines 741 761) no Hoare annotation was computed. [2020-07-21 12:51:09,589 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 836 845) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,590 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 836 845) no Hoare annotation was computed. [2020-07-21 12:51:09,590 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 836 845) no Hoare annotation was computed. [2020-07-21 12:51:09,590 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 197 207) the Hoare annotation is: true [2020-07-21 12:51:09,590 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 197 207) no Hoare annotation was computed. [2020-07-21 12:51:09,590 INFO L271 CegarLoopResult]: At program point L202(line 202) the Hoare annotation is: true [2020-07-21 12:51:09,590 INFO L268 CegarLoopResult]: For program point L202-1(line 202) no Hoare annotation was computed. [2020-07-21 12:51:09,590 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 197 207) no Hoare annotation was computed. [2020-07-21 12:51:09,591 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 189 196) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-21 12:51:09,591 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 189 196) no Hoare annotation was computed. [2020-07-21 12:51:09,591 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 189 196) no Hoare annotation was computed. [2020-07-21 12:51:09,591 INFO L268 CegarLoopResult]: For program point L954(lines 954 960) no Hoare annotation was computed. [2020-07-21 12:51:09,591 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 950 963) no Hoare annotation was computed. [2020-07-21 12:51:09,591 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 950 963) the Hoare annotation is: true [2020-07-21 12:51:09,591 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 950 963) no Hoare annotation was computed. [2020-07-21 12:51:09,592 INFO L264 CegarLoopResult]: At program point L158(line 158) the Hoare annotation is: (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse4 .cse0 .cse1) (or .cse4 .cse0 .cse3))) [2020-07-21 12:51:09,592 INFO L268 CegarLoopResult]: For program point L158-1(lines 139 163) no Hoare annotation was computed. [2020-07-21 12:51:09,592 INFO L264 CegarLoopResult]: At program point L153(line 153) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2020-07-21 12:51:09,592 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 139 163) no Hoare annotation was computed. [2020-07-21 12:51:09,592 INFO L264 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 (and .cse1 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~2))) (or .cse0 .cse3 .cse4) (or .cse0 .cse4 .cse2))) [2020-07-21 12:51:09,592 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 139 163) 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 .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1))) [2020-07-21 12:51:09,593 INFO L268 CegarLoopResult]: For program point L147(lines 147 155) no Hoare annotation was computed. [2020-07-21 12:51:09,593 INFO L264 CegarLoopResult]: At program point L145(line 145) the Hoare annotation is: (let ((.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4) (or .cse0 .cse4 .cse2) (or .cse0 .cse3 .cse1))) [2020-07-21 12:51:09,593 INFO L268 CegarLoopResult]: For program point L145-1(line 145) no Hoare annotation was computed. [2020-07-21 12:51:09,593 INFO L268 CegarLoopResult]: For program point L143(lines 143 160) no Hoare annotation was computed. [2020-07-21 12:51:09,593 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 79 85) no Hoare annotation was computed. [2020-07-21 12:51:09,593 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 79 85) the Hoare annotation is: true [2020-07-21 12:51:09,594 INFO L264 CegarLoopResult]: At program point testENTRY(lines 303 368) the Hoare annotation is: (or (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,594 INFO L268 CegarLoopResult]: For program point L351(lines 351 355) no Hoare annotation was computed. [2020-07-21 12:51:09,594 INFO L264 CegarLoopResult]: At program point L351-2(lines 343 356) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:51:09,594 INFO L268 CegarLoopResult]: For program point L314(lines 313 360) no Hoare annotation was computed. [2020-07-21 12:51:09,594 INFO L264 CegarLoopResult]: At program point L345(line 345) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 1 ~methaneLevelCritical~0) .cse0 .cse1) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:51:09,594 INFO L268 CegarLoopResult]: For program point L343(lines 343 356) no Hoare annotation was computed. [2020-07-21 12:51:09,594 INFO L268 CegarLoopResult]: For program point testFINAL(lines 303 368) no Hoare annotation was computed. [2020-07-21 12:51:09,595 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:51:09,595 INFO L268 CegarLoopResult]: For program point L333(lines 333 339) no Hoare annotation was computed. [2020-07-21 12:51:09,595 INFO L268 CegarLoopResult]: For program point L333-1(lines 333 339) no Hoare annotation was computed. [2020-07-21 12:51:09,595 INFO L264 CegarLoopResult]: At program point L358(lines 313 360) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:51:09,595 INFO L264 CegarLoopResult]: At program point L325(line 325) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (and (= 0 ~methaneLevelCritical~0) .cse0 .cse1) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:51:09,595 INFO L268 CegarLoopResult]: For program point L323(lines 323 329) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point L323-1(lines 323 329) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point L315(lines 315 319) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L264 CegarLoopResult]: At program point L361(lines 312 362) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point testEXIT(lines 303 368) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point L701(lines 701 708) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 681 726) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point L695(lines 695 715) no Hoare annotation was computed. [2020-07-21 12:51:09,596 INFO L268 CegarLoopResult]: For program point L695-1(lines 695 715) no Hoare annotation was computed. [2020-07-21 12:51:09,597 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 681 726) no Hoare annotation was computed. [2020-07-21 12:51:09,597 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 681 726) no Hoare annotation was computed. [2020-07-21 12:51:09,597 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 164 171) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0)) [2020-07-21 12:51:09,597 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 164 171) no Hoare annotation was computed. [2020-07-21 12:51:09,597 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 164 171) no Hoare annotation was computed. [2020-07-21 12:51:09,597 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 964 972) no Hoare annotation was computed. [2020-07-21 12:51:09,597 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 964 972) the Hoare annotation is: true [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 964 972) no Hoare annotation was computed. [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point L926(lines 926 934) no Hoare annotation was computed. [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point L926-2(lines 926 934) no Hoare annotation was computed. [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 918 940) no Hoare annotation was computed. [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 918 940) no Hoare annotation was computed. [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 918 940) no Hoare annotation was computed. [2020-07-21 12:51:09,598 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 374 383) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 374 383) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 374 383) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point L607(lines 607 623) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 578 680) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point L667(lines 667 674) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point L628(lines 627 647) no Hoare annotation was computed. [2020-07-21 12:51:09,599 INFO L268 CegarLoopResult]: For program point L659(line 659) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L659-1(line 659) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L624(lines 624 665) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 578 680) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L643(line 643) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L643-1(line 643) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L602(lines 602 606) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L666(lines 666 677) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point L629(lines 629 633) no Hoare annotation was computed. [2020-07-21 12:51:09,600 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 578 680) no Hoare annotation was computed. [2020-07-21 12:51:09,601 INFO L268 CegarLoopResult]: For program point L627-2(lines 627 647) no Hoare annotation was computed. [2020-07-21 12:51:09,601 INFO L268 CegarLoopResult]: For program point L648(lines 626 649) no Hoare annotation was computed. [2020-07-21 12:51:09,601 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,601 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (< 0 ~waterLevel~0) (< |old(~waterLevel~0)| 1))) [2020-07-21 12:51:09,601 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,601 INFO L264 CegarLoopResult]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 12:51:09,601 INFO L268 CegarLoopResult]: For program point L177-1(line 177) no Hoare annotation was computed. [2020-07-21 12:51:09,602 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 172 188) no Hoare annotation was computed. [2020-07-21 12:51:09,602 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 172 188) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 12:51:09,602 INFO L264 CegarLoopResult]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:51:09,602 INFO L268 CegarLoopResult]: For program point L183-1(lines 172 188) no Hoare annotation was computed. [2020-07-21 12:51:09,602 INFO L268 CegarLoopResult]: For program point L179(lines 179 185) no Hoare annotation was computed. [2020-07-21 12:51:09,602 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 253 271) no Hoare annotation was computed. [2020-07-21 12:51:09,602 INFO L268 CegarLoopResult]: For program point L262(lines 262 266) no Hoare annotation was computed. [2020-07-21 12:51:09,603 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 253 271) the Hoare annotation is: true [2020-07-21 12:51:09,603 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 253 271) no Hoare annotation was computed. [2020-07-21 12:51:09,603 INFO L271 CegarLoopResult]: At program point L260(line 260) the Hoare annotation is: true [2020-07-21 12:51:09,603 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 266) no Hoare annotation was computed. [2020-07-21 12:51:09,603 INFO L268 CegarLoopResult]: For program point L260-1(line 260) no Hoare annotation was computed. [2020-07-21 12:51:09,603 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 941 949) no Hoare annotation was computed. [2020-07-21 12:51:09,603 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 941 949) no Hoare annotation was computed. [2020-07-21 12:51:09,603 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 941 949) no Hoare annotation was computed. [2020-07-21 12:51:09,604 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 897 908) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (<= 1 ~methaneLevelCritical~0) (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse0 (= 0 ~methaneLevelCritical~0) (not (= |old(~methaneLevelCritical~0)| 0))))) [2020-07-21 12:51:09,604 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 897 908) no Hoare annotation was computed. [2020-07-21 12:51:09,604 INFO L268 CegarLoopResult]: For program point L901-1(lines 897 908) no Hoare annotation was computed. [2020-07-21 12:51:09,604 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,604 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,604 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,604 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 909 917) the Hoare annotation is: true [2020-07-21 12:51:09,604 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 909 917) no Hoare annotation was computed. [2020-07-21 12:51:09,605 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 909 917) no Hoare annotation was computed. [2020-07-21 12:51:09,605 INFO L264 CegarLoopResult]: At program point L61(line 61) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (or (< 0 ~waterLevel~0) (< |old(~waterLevel~0)| 1)))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4) (or .cse0 .cse3 .cse1) (or .cse0 .cse4 .cse2))) [2020-07-21 12:51:09,605 INFO L268 CegarLoopResult]: For program point L59(lines 58 77) no Hoare annotation was computed. [2020-07-21 12:51:09,605 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 55 78) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (and .cse1 (or (< 0 ~waterLevel~0) (< |old(~waterLevel~0)| 1)))) (or .cse0 .cse2 (<= 1 ~waterLevel~0) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:51:09,605 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 55 78) no Hoare annotation was computed. [2020-07-21 12:51:09,605 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 55 78) no Hoare annotation was computed. [2020-07-21 12:51:09,606 INFO L264 CegarLoopResult]: At program point L68(line 68) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse1) (or .cse0 .cse3 (< 0 ~waterLevel~0) .cse4 (< |old(~waterLevel~0)| 1)) (or .cse0 .cse4 .cse2 (<= 1 ~waterLevel~0) (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 12:51:09,606 INFO L264 CegarLoopResult]: At program point L66(lines 66 72) the Hoare annotation is: (let ((.cse3 (= 0 |old(~pumpRunning~0)|))) (let ((.cse2 (= 0 ~pumpRunning~0)) (.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not .cse3)) (.cse6 (<= 1 ~waterLevel~0)) (.cse7 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse2) (or .cse0 .cse5 .cse4 .cse6 .cse7) (or .cse0 .cse1 .cse5 .cse6 .cse7)))) [2020-07-21 12:51:09,606 INFO L271 CegarLoopResult]: At program point L800(lines 775 804) the Hoare annotation is: true [2020-07-21 12:51:09,606 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 775 804) no Hoare annotation was computed. [2020-07-21 12:51:09,606 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 775 804) the Hoare annotation is: true [2020-07-21 12:51:09,606 INFO L268 CegarLoopResult]: For program point L796(line 796) no Hoare annotation was computed. [2020-07-21 12:51:09,606 INFO L268 CegarLoopResult]: For program point L789(lines 789 793) no Hoare annotation was computed. [2020-07-21 12:51:09,607 INFO L271 CegarLoopResult]: At program point L789-1(lines 789 793) the Hoare annotation is: true [2020-07-21 12:51:09,607 INFO L268 CegarLoopResult]: For program point L786(line 786) no Hoare annotation was computed. [2020-07-21 12:51:09,607 INFO L271 CegarLoopResult]: At program point L785-2(lines 785 799) the Hoare annotation is: true [2020-07-21 12:51:09,607 INFO L271 CegarLoopResult]: At program point L781(line 781) the Hoare annotation is: true [2020-07-21 12:51:09,607 INFO L268 CegarLoopResult]: For program point L781-1(line 781) no Hoare annotation was computed. [2020-07-21 12:51:09,607 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 873 884) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (< 0 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (< |old(~waterLevel~0)| 1))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:51:09,607 INFO L268 CegarLoopResult]: For program point L877-1(lines 873 884) no Hoare annotation was computed. [2020-07-21 12:51:09,608 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 873 884) no Hoare annotation was computed. [2020-07-21 12:51:09,608 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 829 835) no Hoare annotation was computed. [2020-07-21 12:51:09,608 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 829 835) the Hoare annotation is: true [2020-07-21 12:51:09,608 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,608 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= 1 ~systemActive~0)) [2020-07-21 12:51:09,608 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:51:09,608 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:51:09,608 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 291 298) no Hoare annotation was computed. [2020-07-21 12:51:09,609 INFO L264 CegarLoopResult]: At program point startSystemENTRY(lines 291 298) the Hoare annotation is: (let ((.cse0 (<= 1 ~systemActive~0)) (.cse1 (not (<= 1 |old(~systemActive~0)|)))) (and (or (not (<= 1 ~methaneLevelCritical~0)) .cse0 .cse1) (or (not (= 0 ~methaneLevelCritical~0)) .cse0 .cse1))) [2020-07-21 12:51:09,609 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 291 298) no Hoare annotation was computed. [2020-07-21 12:51:09,609 INFO L264 CegarLoopResult]: At program point L97(line 97) 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 .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-21 12:51:09,609 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 87 111) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:51:09,609 INFO L268 CegarLoopResult]: For program point L95(lines 95 103) no Hoare annotation was computed. [2020-07-21 12:51:09,609 INFO L264 CegarLoopResult]: At program point L93(line 93) 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 .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-21 12:51:09,610 INFO L268 CegarLoopResult]: For program point L93-1(line 93) no Hoare annotation was computed. [2020-07-21 12:51:09,610 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 87 111) no Hoare annotation was computed. [2020-07-21 12:51:09,610 INFO L268 CegarLoopResult]: For program point L91(lines 91 108) no Hoare annotation was computed. [2020-07-21 12:51:09,610 INFO L264 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse0 .cse2 .cse1))) [2020-07-21 12:51:09,610 INFO L268 CegarLoopResult]: For program point L106-1(lines 87 111) no Hoare annotation was computed. [2020-07-21 12:51:09,610 INFO L264 CegarLoopResult]: At program point L101(line 101) 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 .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not .cse1) .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse0 .cse3))) [2020-07-21 12:51:09,610 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 885 896) no Hoare annotation was computed. [2020-07-21 12:51:09,610 INFO L268 CegarLoopResult]: For program point L889-1(lines 885 896) no Hoare annotation was computed. [2020-07-21 12:51:09,611 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 885 896) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (= 0 ~methaneLevelCritical~0)) (<= 1 ~waterLevel~0) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (< 0 ~waterLevel~0) (< |old(~waterLevel~0)| 1) (not (= 0 ~pumpRunning~0))))) [2020-07-21 12:51:09,611 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 1001 1008) no Hoare annotation was computed. [2020-07-21 12:51:09,611 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 1005) no Hoare annotation was computed. [2020-07-21 12:51:09,611 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 1001 1008) the Hoare annotation is: true [2020-07-21 12:51:09,611 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 1001 1008) no Hoare annotation was computed. [2020-07-21 12:51:09,611 INFO L264 CegarLoopResult]: At program point L989(line 989) 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))))) [2020-07-21 12:51:09,611 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 975 999) the Hoare annotation is: true [2020-07-21 12:51:09,612 INFO L268 CegarLoopResult]: For program point L987(lines 987 993) no Hoare annotation was computed. [2020-07-21 12:51:09,612 INFO L264 CegarLoopResult]: At program point L985(line 985) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 ~methaneLevelCritical~0))) [2020-07-21 12:51:09,612 INFO L268 CegarLoopResult]: For program point L985-1(line 985) no Hoare annotation was computed. [2020-07-21 12:51:09,612 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification1_spec__1EXIT(lines 975 999) no Hoare annotation was computed. [2020-07-21 12:51:09,612 INFO L268 CegarLoopResult]: For program point L983(lines 983 996) no Hoare annotation was computed. [2020-07-21 12:51:09,612 INFO L268 CegarLoopResult]: For program point L983-1(lines 975 999) no Hoare annotation was computed. [2020-07-21 12:51:09,612 INFO L271 CegarLoopResult]: At program point L981(line 981) the Hoare annotation is: true [2020-07-21 12:51:09,612 INFO L268 CegarLoopResult]: For program point L981-1(line 981) no Hoare annotation was computed. [2020-07-21 12:51:09,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:51:09 BoogieIcfgContainer [2020-07-21 12:51:09,630 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:51:09,632 INFO L168 Benchmark]: Toolchain (without parser) took 15384.18 ms. Allocated memory was 144.7 MB in the beginning and 391.1 MB in the end (delta: 246.4 MB). Free memory was 101.7 MB in the beginning and 310.9 MB in the end (delta: -209.1 MB). Peak memory consumption was 262.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:09,632 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 12:51:09,633 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.15 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 101.3 MB in the beginning and 172.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:09,634 INFO L168 Benchmark]: Boogie Preprocessor took 108.54 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 165.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:09,635 INFO L168 Benchmark]: RCFGBuilder took 1317.17 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.7 MB in the beginning and 193.5 MB in the end (delta: -27.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:09,636 INFO L168 Benchmark]: TraceAbstraction took 13300.24 ms. Allocated memory was 235.9 MB in the beginning and 391.1 MB in the end (delta: 155.2 MB). Free memory was 193.5 MB in the beginning and 310.9 MB in the end (delta: -117.3 MB). Peak memory consumption was 262.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:51:09,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.7 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.15 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 101.3 MB in the beginning and 172.1 MB in the end (delta: -70.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.54 ms. Allocated memory is still 203.4 MB. Free memory was 172.1 MB in the beginning and 165.7 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1317.17 ms. Allocated memory was 203.4 MB in the beginning and 235.9 MB in the end (delta: 32.5 MB). Free memory was 165.7 MB in the beginning and 193.5 MB in the end (delta: -27.9 MB). Peak memory consumption was 82.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13300.24 ms. Allocated memory was 235.9 MB in the beginning and 391.1 MB in the end (delta: 155.2 MB). Free memory was 193.5 MB in the beginning and 310.9 MB in the end (delta: -117.3 MB). Peak memory consumption was 262.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1005]: 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: 775]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 313]: Loop Invariant Derived loop invariant: ((((((0 == methaneLevelCritical && splverifierCounter <= 0) && 1 <= systemActive) || (((1 <= methaneLevelCritical && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 312]: Loop Invariant Derived loop invariant: ((!(0 == \old(pumpRunning)) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 785]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.6s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1833 SDtfs, 1072 SDslu, 3035 SDs, 0 SdLazy, 1264 SolverSat, 246 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1010 GetRequests, 965 SyntacticMatches, 9 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=650occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 70 LocationsWithAnnotation, 1239 PreInvPairs, 1306 NumberOfFragments, 1645 HoareAnnotationTreeSize, 1239 FomulaSimplifications, 604 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 70 FomulaSimplificationsInter, 6728 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 839 NumberOfCodeBlocks, 839 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 1003 ConstructedInterpolants, 0 QuantifiedInterpolants, 219676 SizeOfPredicates, 23 NumberOfNonLiveVariables, 6802 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 161/162 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...