/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:22:40,988 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:22:40,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:22:41,007 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:22:41,007 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:22:41,008 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:22:41,009 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:22:41,011 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:22:41,013 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:22:41,013 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:22:41,014 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:22:41,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:22:41,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:22:41,016 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:22:41,017 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:22:41,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:22:41,019 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:22:41,020 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:22:41,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:22:41,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:22:41,025 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:22:41,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:22:41,028 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:22:41,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:22:41,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:22:41,031 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:22:41,031 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:22:41,032 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:22:41,033 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:22:41,034 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:22:41,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:22:41,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:22:41,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:22:41,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:22:41,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:22:41,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:22:41,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:22:41,038 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:22:41,038 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:22:41,039 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:22:41,040 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:22:41,040 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 16:22:41,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:22:41,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:22:41,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:22:41,067 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:22:41,067 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:22:41,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:22:41,067 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:22:41,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:22:41,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:22:41,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:22:41,069 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:22:41,069 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:22:41,069 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:22:41,069 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:22:41,070 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:22:41,070 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:22:41,070 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:22:41,070 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:22:41,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:22:41,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:22:41,071 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:22:41,071 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:22:41,071 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:22:41,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:22:41,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:22:41,072 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:22:41,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:41,072 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:22:41,072 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:22:41,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 16:22:41,392 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:22:41,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:22:41,415 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:22:41,417 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:22:41,417 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:22:41,418 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-07-20 16:22:41,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aedeec18/42446c253fe145c48f1f8123a7394fbb/FLAGb566d11b4 [2020-07-20 16:22:41,943 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:22:41,944 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product61.cil.c [2020-07-20 16:22:41,957 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aedeec18/42446c253fe145c48f1f8123a7394fbb/FLAGb566d11b4 [2020-07-20 16:22:42,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2aedeec18/42446c253fe145c48f1f8123a7394fbb [2020-07-20 16:22:42,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:22:42,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:22:42,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:22:42,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:22:42,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:22:42,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:22:42" (1/1) ... [2020-07-20 16:22:42,314 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6960a08e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:42, skipping insertion in model container [2020-07-20 16:22:42,314 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:22:42" (1/1) ... [2020-07-20 16:22:42,321 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:22:42,363 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:22:42,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:22:42,884 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:22:43,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:22:43,047 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:22:43,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43 WrapperNode [2020-07-20 16:22:43,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:22:43,048 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:22:43,049 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:22:43,049 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:22:43,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... [2020-07-20 16:22:43,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:22:43,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:22:43,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:22:43,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:22:43,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:22:43,204 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:22:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:22:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:22:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:22:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:22:43,205 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:22:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:22:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:22:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:22:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:22:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:22:43,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:22:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:22:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:22:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-20 16:22:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:22:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-07-20 16:22:43,207 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:22:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:22:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:22:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:22:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:22:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:22:43,208 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:22:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:22:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:22:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:22:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 16:22:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:22:43,209 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:22:43,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:22:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:22:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:22:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:22:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:22:43,211 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:22:43,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:22:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:22:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:22:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:22:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:22:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:22:43,212 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:22:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:22:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:22:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:22:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:22:43,213 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:22:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:22:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:22:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-20 16:22:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:22:43,214 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:22:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:22:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-07-20 16:22:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:22:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:22:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:22:43,215 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:22:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:22:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:22:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:22:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:22:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:22:43,216 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:22:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:22:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:22:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:22:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-20 16:22:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-20 16:22:43,217 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:22:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:22:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-20 16:22:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:22:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:22:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:22:43,218 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:22:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:22:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:22:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:22:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:22:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:22:43,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:22:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:22:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:22:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:22:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:22:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:22:43,220 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:22:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:22:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:22:43,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:22:44,400 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:22:44,400 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:22:44,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:22:44 BoogieIcfgContainer [2020-07-20 16:22:44,405 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:22:44,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:22:44,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:22:44,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:22:44,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:22:42" (1/3) ... [2020-07-20 16:22:44,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b52475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:22:44, skipping insertion in model container [2020-07-20 16:22:44,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:22:43" (2/3) ... [2020-07-20 16:22:44,411 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b52475 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:22:44, skipping insertion in model container [2020-07-20 16:22:44,411 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:22:44" (3/3) ... [2020-07-20 16:22:44,413 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2020-07-20 16:22:44,422 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:22:44,430 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:22:44,440 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:22:44,464 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:22:44,465 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:22:44,465 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:22:44,465 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:22:44,465 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:22:44,466 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:22:44,466 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:22:44,466 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:22:44,488 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states. [2020-07-20 16:22:44,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-20 16:22:44,498 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:44,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:44,499 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:44,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1301923028, now seen corresponding path program 1 times [2020-07-20 16:22:44,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:44,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156332567] [2020-07-20 16:22:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:45,001 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:45,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:45,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:22:45,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:45,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:45,051 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:45,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156332567] [2020-07-20 16:22:45,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:45,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:22:45,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638786874] [2020-07-20 16:22:45,059 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:22:45,059 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:45,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:22:45,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:22:45,076 INFO L87 Difference]: Start difference. First operand 193 states. Second operand 2 states. [2020-07-20 16:22:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:45,125 INFO L93 Difference]: Finished difference Result 300 states and 375 transitions. [2020-07-20 16:22:45,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:22:45,126 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-20 16:22:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:45,144 INFO L225 Difference]: With dead ends: 300 [2020-07-20 16:22:45,144 INFO L226 Difference]: Without dead ends: 150 [2020-07-20 16:22:45,152 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:22:45,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2020-07-20 16:22:45,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 150. [2020-07-20 16:22:45,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2020-07-20 16:22:45,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 179 transitions. [2020-07-20 16:22:45,235 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 179 transitions. Word has length 46 [2020-07-20 16:22:45,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:45,236 INFO L479 AbstractCegarLoop]: Abstraction has 150 states and 179 transitions. [2020-07-20 16:22:45,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:22:45,236 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 179 transitions. [2020-07-20 16:22:45,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-20 16:22:45,240 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:45,240 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:45,454 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:45,455 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:45,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:45,456 INFO L82 PathProgramCache]: Analyzing trace with hash -216566915, now seen corresponding path program 1 times [2020-07-20 16:22:45,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:45,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [705013797] [2020-07-20 16:22:45,458 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:45,900 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:45,900 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:45,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 617 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:22:45,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:45,944 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:45,944 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [705013797] [2020-07-20 16:22:45,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:45,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:45,945 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736156835] [2020-07-20 16:22:45,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:45,947 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:45,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:45,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:45,947 INFO L87 Difference]: Start difference. First operand 150 states and 179 transitions. Second operand 3 states. [2020-07-20 16:22:45,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:45,972 INFO L93 Difference]: Finished difference Result 249 states and 297 transitions. [2020-07-20 16:22:45,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:45,972 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-20 16:22:45,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:45,975 INFO L225 Difference]: With dead ends: 249 [2020-07-20 16:22:45,975 INFO L226 Difference]: Without dead ends: 141 [2020-07-20 16:22:45,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-20 16:22:45,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-07-20 16:22:45,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-07-20 16:22:45,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 167 transitions. [2020-07-20 16:22:45,991 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 167 transitions. Word has length 47 [2020-07-20 16:22:45,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:45,991 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 167 transitions. [2020-07-20 16:22:45,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:45,991 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 167 transitions. [2020-07-20 16:22:45,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-20 16:22:45,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:45,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:46,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:46,210 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:46,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:46,211 INFO L82 PathProgramCache]: Analyzing trace with hash 1163721234, now seen corresponding path program 1 times [2020-07-20 16:22:46,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:46,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2063781263] [2020-07-20 16:22:46,213 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:46,643 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:46,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:46,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:22:46,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:46,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:46,676 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:46,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2063781263] [2020-07-20 16:22:46,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:46,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:46,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667031348] [2020-07-20 16:22:46,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:46,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:46,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:46,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:46,679 INFO L87 Difference]: Start difference. First operand 141 states and 167 transitions. Second operand 3 states. [2020-07-20 16:22:46,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:46,710 INFO L93 Difference]: Finished difference Result 258 states and 311 transitions. [2020-07-20 16:22:46,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:46,711 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2020-07-20 16:22:46,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:46,716 INFO L225 Difference]: With dead ends: 258 [2020-07-20 16:22:46,716 INFO L226 Difference]: Without dead ends: 141 [2020-07-20 16:22:46,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:46,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-20 16:22:46,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 141. [2020-07-20 16:22:46,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2020-07-20 16:22:46,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 166 transitions. [2020-07-20 16:22:46,739 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 166 transitions. Word has length 51 [2020-07-20 16:22:46,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:46,741 INFO L479 AbstractCegarLoop]: Abstraction has 141 states and 166 transitions. [2020-07-20 16:22:46,741 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:46,741 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 166 transitions. [2020-07-20 16:22:46,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-20 16:22:46,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:46,750 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] [2020-07-20 16:22:46,964 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:46,965 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:46,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:46,965 INFO L82 PathProgramCache]: Analyzing trace with hash 1315506319, now seen corresponding path program 1 times [2020-07-20 16:22:46,965 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:46,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1515389533] [2020-07-20 16:22:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:47,306 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:47,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:47,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:22:47,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:47,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:47,359 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:47,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1515389533] [2020-07-20 16:22:47,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:47,360 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:47,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966160980] [2020-07-20 16:22:47,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:47,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:47,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:47,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:47,366 INFO L87 Difference]: Start difference. First operand 141 states and 166 transitions. Second operand 6 states. [2020-07-20 16:22:48,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:48,057 INFO L93 Difference]: Finished difference Result 349 states and 426 transitions. [2020-07-20 16:22:48,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:22:48,058 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 69 [2020-07-20 16:22:48,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:48,062 INFO L225 Difference]: With dead ends: 349 [2020-07-20 16:22:48,062 INFO L226 Difference]: Without dead ends: 232 [2020-07-20 16:22:48,063 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:22:48,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2020-07-20 16:22:48,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 217. [2020-07-20 16:22:48,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-20 16:22:48,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 245 transitions. [2020-07-20 16:22:48,102 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 245 transitions. Word has length 69 [2020-07-20 16:22:48,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:48,105 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 245 transitions. [2020-07-20 16:22:48,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:48,106 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 245 transitions. [2020-07-20 16:22:48,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-07-20 16:22:48,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:48,109 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] [2020-07-20 16:22:48,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:48,312 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:48,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:48,313 INFO L82 PathProgramCache]: Analyzing trace with hash -921409892, now seen corresponding path program 1 times [2020-07-20 16:22:48,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:48,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [132451742] [2020-07-20 16:22:48,314 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:48,706 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:48,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:48,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 714 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-20 16:22:48,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:48,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:48,763 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:48,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [132451742] [2020-07-20 16:22:48,764 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:48,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:48,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684821691] [2020-07-20 16:22:48,765 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:48,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:48,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:48,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:48,766 INFO L87 Difference]: Start difference. First operand 217 states and 245 transitions. Second operand 6 states. [2020-07-20 16:22:49,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:49,018 INFO L93 Difference]: Finished difference Result 592 states and 689 transitions. [2020-07-20 16:22:49,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:22:49,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2020-07-20 16:22:49,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:49,027 INFO L225 Difference]: With dead ends: 592 [2020-07-20 16:22:49,027 INFO L226 Difference]: Without dead ends: 399 [2020-07-20 16:22:49,029 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:49,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-20 16:22:49,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2020-07-20 16:22:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-07-20 16:22:49,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 448 transitions. [2020-07-20 16:22:49,083 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 448 transitions. Word has length 83 [2020-07-20 16:22:49,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:49,083 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 448 transitions. [2020-07-20 16:22:49,083 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:49,084 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 448 transitions. [2020-07-20 16:22:49,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2020-07-20 16:22:49,085 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:49,085 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] [2020-07-20 16:22:49,296 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:49,296 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:49,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:49,297 INFO L82 PathProgramCache]: Analyzing trace with hash 592685792, now seen corresponding path program 1 times [2020-07-20 16:22:49,298 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:49,298 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [831154855] [2020-07-20 16:22:49,299 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:49,644 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:49,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:49,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:22:49,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:49,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:49,703 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:49,703 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [831154855] [2020-07-20 16:22:49,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:49,704 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:49,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184620316] [2020-07-20 16:22:49,705 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:49,705 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:49,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:49,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:49,706 INFO L87 Difference]: Start difference. First operand 395 states and 448 transitions. Second operand 6 states. [2020-07-20 16:22:49,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:49,985 INFO L93 Difference]: Finished difference Result 402 states and 456 transitions. [2020-07-20 16:22:49,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:22:49,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2020-07-20 16:22:49,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:49,992 INFO L225 Difference]: With dead ends: 402 [2020-07-20 16:22:49,992 INFO L226 Difference]: Without dead ends: 399 [2020-07-20 16:22:49,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:49,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2020-07-20 16:22:50,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 395. [2020-07-20 16:22:50,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 395 states. [2020-07-20 16:22:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 447 transitions. [2020-07-20 16:22:50,038 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 447 transitions. Word has length 87 [2020-07-20 16:22:50,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:50,040 INFO L479 AbstractCegarLoop]: Abstraction has 395 states and 447 transitions. [2020-07-20 16:22:50,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:50,040 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 447 transitions. [2020-07-20 16:22:50,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-20 16:22:50,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:50,047 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] [2020-07-20 16:22:50,258 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:50,259 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:50,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:50,259 INFO L82 PathProgramCache]: Analyzing trace with hash -88143431, now seen corresponding path program 1 times [2020-07-20 16:22:50,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:50,260 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925085386] [2020-07-20 16:22:50,260 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:50,550 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:50,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:50,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:22:50,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:50,587 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:50,587 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925085386] [2020-07-20 16:22:50,588 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:50,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:22:50,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899167586] [2020-07-20 16:22:50,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:22:50,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:50,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:22:50,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:22:50,589 INFO L87 Difference]: Start difference. First operand 395 states and 447 transitions. Second operand 6 states. [2020-07-20 16:22:50,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:50,637 INFO L93 Difference]: Finished difference Result 780 states and 902 transitions. [2020-07-20 16:22:50,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:22:50,638 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 103 [2020-07-20 16:22:50,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:50,641 INFO L225 Difference]: With dead ends: 780 [2020-07-20 16:22:50,641 INFO L226 Difference]: Without dead ends: 409 [2020-07-20 16:22:50,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:22:50,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2020-07-20 16:22:50,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 405. [2020-07-20 16:22:50,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 405 states. [2020-07-20 16:22:50,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 457 transitions. [2020-07-20 16:22:50,667 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 457 transitions. Word has length 103 [2020-07-20 16:22:50,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:50,667 INFO L479 AbstractCegarLoop]: Abstraction has 405 states and 457 transitions. [2020-07-20 16:22:50,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:22:50,668 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 457 transitions. [2020-07-20 16:22:50,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-20 16:22:50,669 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:50,670 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] [2020-07-20 16:22:50,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:50,883 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:50,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:50,884 INFO L82 PathProgramCache]: Analyzing trace with hash -441231813, now seen corresponding path program 1 times [2020-07-20 16:22:50,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:50,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [142039459] [2020-07-20 16:22:50,885 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:51,022 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:22:51,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:51,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:22:51,029 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:51,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:51,100 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [142039459] [2020-07-20 16:22:51,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:51,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:22:51,101 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731416898] [2020-07-20 16:22:51,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:22:51,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:51,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:22:51,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:22:51,102 INFO L87 Difference]: Start difference. First operand 405 states and 457 transitions. Second operand 5 states. [2020-07-20 16:22:51,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:51,133 INFO L93 Difference]: Finished difference Result 800 states and 924 transitions. [2020-07-20 16:22:51,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:22:51,133 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 103 [2020-07-20 16:22:51,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:51,136 INFO L225 Difference]: With dead ends: 800 [2020-07-20 16:22:51,136 INFO L226 Difference]: Without dead ends: 419 [2020-07-20 16:22:51,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:22:51,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2020-07-20 16:22:51,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 413. [2020-07-20 16:22:51,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 413 states. [2020-07-20 16:22:51,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 465 transitions. [2020-07-20 16:22:51,161 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 465 transitions. Word has length 103 [2020-07-20 16:22:51,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:51,162 INFO L479 AbstractCegarLoop]: Abstraction has 413 states and 465 transitions. [2020-07-20 16:22:51,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:22:51,162 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 465 transitions. [2020-07-20 16:22:51,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-20 16:22:51,164 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:51,164 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] [2020-07-20 16:22:51,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:51,379 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:51,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:51,380 INFO L82 PathProgramCache]: Analyzing trace with hash 691958780, now seen corresponding path program 1 times [2020-07-20 16:22:51,380 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:51,381 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [543111407] [2020-07-20 16:22:51,381 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:51,662 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:51,662 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:51,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:22:51,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:51,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 16:22:51,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:51,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [543111407] [2020-07-20 16:22:51,706 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:51,706 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:22:51,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006351548] [2020-07-20 16:22:51,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:22:51,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:51,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:22:51,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:51,707 INFO L87 Difference]: Start difference. First operand 413 states and 465 transitions. Second operand 3 states. [2020-07-20 16:22:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:51,759 INFO L93 Difference]: Finished difference Result 1103 states and 1297 transitions. [2020-07-20 16:22:51,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:22:51,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-20 16:22:51,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:51,766 INFO L225 Difference]: With dead ends: 1103 [2020-07-20 16:22:51,766 INFO L226 Difference]: Without dead ends: 714 [2020-07-20 16:22:51,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 100 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:22:51,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2020-07-20 16:22:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 711. [2020-07-20 16:22:51,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 711 states. [2020-07-20 16:22:51,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 711 states to 711 states and 822 transitions. [2020-07-20 16:22:51,806 INFO L78 Accepts]: Start accepts. Automaton has 711 states and 822 transitions. Word has length 103 [2020-07-20 16:22:51,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:51,807 INFO L479 AbstractCegarLoop]: Abstraction has 711 states and 822 transitions. [2020-07-20 16:22:51,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:22:51,807 INFO L276 IsEmpty]: Start isEmpty. Operand 711 states and 822 transitions. [2020-07-20 16:22:51,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-20 16:22:51,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:51,810 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, 1, 1, 1] [2020-07-20 16:22:52,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:52,025 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:52,026 INFO L82 PathProgramCache]: Analyzing trace with hash -867723262, now seen corresponding path program 1 times [2020-07-20 16:22:52,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:52,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [797179767] [2020-07-20 16:22:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:52,345 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:52,346 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:52,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 774 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:22:52,353 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:52,448 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:22:52,448 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:52,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [797179767] [2020-07-20 16:22:52,449 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:52,449 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:22:52,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81864623] [2020-07-20 16:22:52,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:22:52,450 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:52,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:22:52,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:52,450 INFO L87 Difference]: Start difference. First operand 711 states and 822 transitions. Second operand 8 states. [2020-07-20 16:22:52,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:52,919 INFO L93 Difference]: Finished difference Result 1383 states and 1609 transitions. [2020-07-20 16:22:52,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:22:52,920 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 107 [2020-07-20 16:22:52,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:52,926 INFO L225 Difference]: With dead ends: 1383 [2020-07-20 16:22:52,926 INFO L226 Difference]: Without dead ends: 696 [2020-07-20 16:22:52,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 99 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:52,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2020-07-20 16:22:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 696. [2020-07-20 16:22:52,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 696 states. [2020-07-20 16:22:52,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 696 states to 696 states and 797 transitions. [2020-07-20 16:22:52,977 INFO L78 Accepts]: Start accepts. Automaton has 696 states and 797 transitions. Word has length 107 [2020-07-20 16:22:52,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:52,978 INFO L479 AbstractCegarLoop]: Abstraction has 696 states and 797 transitions. [2020-07-20 16:22:52,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:22:52,979 INFO L276 IsEmpty]: Start isEmpty. Operand 696 states and 797 transitions. [2020-07-20 16:22:52,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-20 16:22:52,982 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:52,983 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:53,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:53,198 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:53,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:53,199 INFO L82 PathProgramCache]: Analyzing trace with hash -1034143598, now seen corresponding path program 1 times [2020-07-20 16:22:53,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:53,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [674550825] [2020-07-20 16:22:53,200 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:53,573 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:22:53,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:53,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-20 16:22:53,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:53,653 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-20 16:22:53,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:53,654 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [674550825] [2020-07-20 16:22:53,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:53,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 16:22:53,655 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004758731] [2020-07-20 16:22:53,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 16:22:53,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:53,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 16:22:53,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-20 16:22:53,656 INFO L87 Difference]: Start difference. First operand 696 states and 797 transitions. Second operand 7 states. [2020-07-20 16:22:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:54,533 INFO L93 Difference]: Finished difference Result 1603 states and 1944 transitions. [2020-07-20 16:22:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:22:54,534 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 176 [2020-07-20 16:22:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:54,541 INFO L225 Difference]: With dead ends: 1603 [2020-07-20 16:22:54,541 INFO L226 Difference]: Without dead ends: 931 [2020-07-20 16:22:54,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:54,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2020-07-20 16:22:54,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 853. [2020-07-20 16:22:54,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 853 states. [2020-07-20 16:22:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 853 states to 853 states and 1002 transitions. [2020-07-20 16:22:54,596 INFO L78 Accepts]: Start accepts. Automaton has 853 states and 1002 transitions. Word has length 176 [2020-07-20 16:22:54,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:54,598 INFO L479 AbstractCegarLoop]: Abstraction has 853 states and 1002 transitions. [2020-07-20 16:22:54,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 16:22:54,599 INFO L276 IsEmpty]: Start isEmpty. Operand 853 states and 1002 transitions. [2020-07-20 16:22:54,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-20 16:22:54,602 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:22:54,602 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 16:22:54,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:54,818 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:22:54,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:22:54,818 INFO L82 PathProgramCache]: Analyzing trace with hash -1713415852, now seen corresponding path program 1 times [2020-07-20 16:22:54,819 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:22:54,819 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653054392] [2020-07-20 16:22:54,820 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:55,255 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:22:55,256 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:22:55,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 933 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 16:22:55,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:22:55,337 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-20 16:22:55,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:22:55,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653054392] [2020-07-20 16:22:55,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:22:55,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 16:22:55,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856405041] [2020-07-20 16:22:55,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 16:22:55,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:22:55,340 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 16:22:55,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:55,340 INFO L87 Difference]: Start difference. First operand 853 states and 1002 transitions. Second operand 8 states. [2020-07-20 16:22:55,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:22:55,747 INFO L93 Difference]: Finished difference Result 1550 states and 1842 transitions. [2020-07-20 16:22:55,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 16:22:55,748 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2020-07-20 16:22:55,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:22:55,750 INFO L225 Difference]: With dead ends: 1550 [2020-07-20 16:22:55,750 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 16:22:55,753 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 168 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-20 16:22:55,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 16:22:55,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 16:22:55,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 16:22:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 16:22:55,754 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 176 [2020-07-20 16:22:55,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:22:55,755 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 16:22:55,755 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 16:22:55,755 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 16:22:55,755 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 16:22:55,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:22:55,973 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 16:22:57,160 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 16 [2020-07-20 16:22:57,730 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 30 [2020-07-20 16:22:58,061 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 22 [2020-07-20 16:22:58,357 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 25 [2020-07-20 16:22:58,491 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 19 [2020-07-20 16:22:58,869 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 24 [2020-07-20 16:22:59,019 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 19 [2020-07-20 16:22:59,246 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 19 [2020-07-20 16:22:59,358 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 19 [2020-07-20 16:22:59,474 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 19 [2020-07-20 16:22:59,666 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 23 [2020-07-20 16:23:00,228 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 30 [2020-07-20 16:23:00,414 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 24 [2020-07-20 16:23:01,134 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 19 [2020-07-20 16:23:01,285 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 29 [2020-07-20 16:23:01,290 INFO L268 CegarLoopResult]: For program point L730(lines 707 731) no Hoare annotation was computed. [2020-07-20 16:23:01,290 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 683 738) no Hoare annotation was computed. [2020-07-20 16:23:01,290 INFO L268 CegarLoopResult]: For program point L714(lines 714 718) no Hoare annotation was computed. [2020-07-20 16:23:01,290 INFO L268 CegarLoopResult]: For program point L714-1(lines 714 718) no Hoare annotation was computed. [2020-07-20 16:23:01,290 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 683 738) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point L709(line 709) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 683 738) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point L708-2(lines 708 729) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point L766(line 766) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point L765-2(lines 765 790) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point L791(lines 764 792) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 739 798) no Hoare annotation was computed. [2020-07-20 16:23:01,291 INFO L268 CegarLoopResult]: For program point L784(line 784) no Hoare annotation was computed. [2020-07-20 16:23:01,292 INFO L268 CegarLoopResult]: For program point L784-1(line 784) no Hoare annotation was computed. [2020-07-20 16:23:01,292 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 739 798) no Hoare annotation was computed. [2020-07-20 16:23:01,292 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 739 798) no Hoare annotation was computed. [2020-07-20 16:23:01,292 INFO L268 CegarLoopResult]: For program point L771(lines 771 775) no Hoare annotation was computed. [2020-07-20 16:23:01,292 INFO L268 CegarLoopResult]: For program point L771-1(lines 771 775) no Hoare annotation was computed. [2020-07-20 16:23:01,292 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-20 16:23:01,292 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-20 16:23:01,293 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-20 16:23:01,293 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-20 16:23:01,293 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-20 16:23:01,293 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 300 322) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,293 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 300 322) no Hoare annotation was computed. [2020-07-20 16:23:01,293 INFO L264 CegarLoopResult]: At program point L312(line 312) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,294 INFO L264 CegarLoopResult]: At program point L312-1(line 312) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,294 INFO L268 CegarLoopResult]: For program point L310(lines 310 317) no Hoare annotation was computed. [2020-07-20 16:23:01,294 INFO L268 CegarLoopResult]: For program point L310-1(lines 310 317) no Hoare annotation was computed. [2020-07-20 16:23:01,294 INFO L268 CegarLoopResult]: For program point L308(line 308) no Hoare annotation was computed. [2020-07-20 16:23:01,294 INFO L264 CegarLoopResult]: At program point L307(line 307) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,294 INFO L264 CegarLoopResult]: At program point L306(line 306) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,294 INFO L264 CegarLoopResult]: At program point L306-1(line 306) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,294 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 300 322) no Hoare annotation was computed. [2020-07-20 16:23:01,294 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 258 281) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 258 281) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 258 281) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L276(line 276) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L275(line 275) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L274(line 274) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L273(line 273) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L272(line 272) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L271(line 271) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L269(line 269) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L268(line 268) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L267(line 267) no Hoare annotation was computed. [2020-07-20 16:23:01,295 INFO L268 CegarLoopResult]: For program point L266(line 266) no Hoare annotation was computed. [2020-07-20 16:23:01,296 INFO L268 CegarLoopResult]: For program point L265(line 265) no Hoare annotation was computed. [2020-07-20 16:23:01,296 INFO L268 CegarLoopResult]: For program point L264(line 264) no Hoare annotation was computed. [2020-07-20 16:23:01,296 INFO L268 CegarLoopResult]: For program point L263(line 263) no Hoare annotation was computed. [2020-07-20 16:23:01,296 INFO L264 CegarLoopResult]: At program point L406(line 406) 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))) [2020-07-20 16:23:01,296 INFO L268 CegarLoopResult]: For program point L406-1(lines 387 411) no Hoare annotation was computed. [2020-07-20 16:23:01,296 INFO L264 CegarLoopResult]: At program point L401(line 401) 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))) [2020-07-20 16:23:01,296 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 387 411) 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)))) [2020-07-20 16:23:01,296 INFO L264 CegarLoopResult]: At program point L397(line 397) 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))) [2020-07-20 16:23:01,296 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 387 411) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point L395(lines 395 403) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L264 CegarLoopResult]: At program point L393(line 393) 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))) [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point L393-1(line 393) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point L391(lines 391 408) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 482 490) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 482 490) the Hoare annotation is: true [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 482 490) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point L555(lines 555 559) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 546 564) the Hoare annotation is: true [2020-07-20 16:23:01,297 INFO L271 CegarLoopResult]: At program point L553(line 553) the Hoare annotation is: true [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point L555-2(lines 555 559) no Hoare annotation was computed. [2020-07-20 16:23:01,297 INFO L268 CegarLoopResult]: For program point L553-1(line 553) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 546 564) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 546 564) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point L510(lines 510 518) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point L510-2(lines 510 518) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point L498(lines 498 506) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point L498-2(lines 498 506) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 491 526) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point L521-1(line 521) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 491 526) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 491 526) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-20 16:23:01,298 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 637 682) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 637 682) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 637 682) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 950 995) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 950 995) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point L970(lines 970 977) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 950 995) no Hoare annotation was computed. [2020-07-20 16:23:01,299 INFO L268 CegarLoopResult]: For program point L964(lines 964 984) no Hoare annotation was computed. [2020-07-20 16:23:01,300 INFO L268 CegarLoopResult]: For program point L964-1(lines 964 984) no Hoare annotation was computed. [2020-07-20 16:23:01,300 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 290 299) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,300 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 290 299) no Hoare annotation was computed. [2020-07-20 16:23:01,300 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 290 299) no Hoare annotation was computed. [2020-07-20 16:23:01,300 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 471 481) the Hoare annotation is: true [2020-07-20 16:23:01,300 INFO L271 CegarLoopResult]: At program point L476(line 476) the Hoare annotation is: true [2020-07-20 16:23:01,300 INFO L268 CegarLoopResult]: For program point L476-1(line 476) no Hoare annotation was computed. [2020-07-20 16:23:01,300 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 471 481) no Hoare annotation was computed. [2020-07-20 16:23:01,301 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 471 481) no Hoare annotation was computed. [2020-07-20 16:23:01,301 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 463 470) 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))))) [2020-07-20 16:23:01,301 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 463 470) no Hoare annotation was computed. [2020-07-20 16:23:01,301 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 463 470) no Hoare annotation was computed. [2020-07-20 16:23:01,301 INFO L268 CegarLoopResult]: For program point L169(lines 169 175) no Hoare annotation was computed. [2020-07-20 16:23:01,301 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 165 178) no Hoare annotation was computed. [2020-07-20 16:23:01,301 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 165 178) the Hoare annotation is: true [2020-07-20 16:23:01,302 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 165 178) no Hoare annotation was computed. [2020-07-20 16:23:01,302 INFO L268 CegarLoopResult]: For program point L417(lines 417 434) no Hoare annotation was computed. [2020-07-20 16:23:01,302 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 413 437) no Hoare annotation was computed. [2020-07-20 16:23:01,302 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 413 437) 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))) [2020-07-20 16:23:01,302 INFO L264 CegarLoopResult]: At program point L432(line 432) 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))) [2020-07-20 16:23:01,302 INFO L268 CegarLoopResult]: For program point L432-1(lines 413 437) no Hoare annotation was computed. [2020-07-20 16:23:01,303 INFO L264 CegarLoopResult]: At program point L427(line 427) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) (or .cse0 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1))) [2020-07-20 16:23:01,303 INFO L264 CegarLoopResult]: At program point L423(line 423) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~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 .cse4) (or .cse0 .cse3 (and .cse1 (<= ~methaneLevelCritical~0 processEnvironment_~tmp~4))) (or .cse0 .cse4 .cse2))) [2020-07-20 16:23:01,303 INFO L268 CegarLoopResult]: For program point L421(lines 421 429) no Hoare annotation was computed. [2020-07-20 16:23:01,303 INFO L264 CegarLoopResult]: At program point L419(line 419) 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))) [2020-07-20 16:23:01,303 INFO L268 CegarLoopResult]: For program point L419-1(line 419) no Hoare annotation was computed. [2020-07-20 16:23:01,303 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 353 359) no Hoare annotation was computed. [2020-07-20 16:23:01,304 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 353 359) the Hoare annotation is: true [2020-07-20 16:23:01,304 INFO L264 CegarLoopResult]: At program point testENTRY(lines 566 629) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-20 16:23:01,304 INFO L268 CegarLoopResult]: For program point testFINAL(lines 566 629) no Hoare annotation was computed. [2020-07-20 16:23:01,304 INFO L264 CegarLoopResult]: At program point L622(lines 575 623) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 ~systemActive~0))) [2020-07-20 16:23:01,304 INFO L268 CegarLoopResult]: For program point L612(lines 612 616) no Hoare annotation was computed. [2020-07-20 16:23:01,304 INFO L264 CegarLoopResult]: At program point L612-2(lines 606 617) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2020-07-20 16:23:01,304 INFO L268 CegarLoopResult]: For program point L577(lines 576 621) no Hoare annotation was computed. [2020-07-20 16:23:01,304 INFO L268 CegarLoopResult]: For program point L606(lines 606 617) no Hoare annotation was computed. [2020-07-20 16:23:01,304 INFO L264 CegarLoopResult]: At program point L598(line 598) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L596(lines 596 602) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L596-1(lines 596 602) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L264 CegarLoopResult]: At program point L588(line 588) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2020-07-20 16:23:01,305 INFO L264 CegarLoopResult]: At program point L619(lines 576 621) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= 1 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) .cse0))) [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L586(lines 586 592) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L586-1(lines 586 592) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point testEXIT(lines 566 629) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L578(lines 578 582) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L924(lines 924 931) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 904 949) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L918(lines 918 938) no Hoare annotation was computed. [2020-07-20 16:23:01,305 INFO L268 CegarLoopResult]: For program point L918-1(lines 918 938) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 904 949) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 904 949) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 438 445) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 438 445) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 438 445) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 179 187) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 179 187) the Hoare annotation is: true [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 179 187) no Hoare annotation was computed. [2020-07-20 16:23:01,306 INFO L268 CegarLoopResult]: For program point L141(lines 141 149) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point L141-2(lines 141 149) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 133 155) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 133 155) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 133 155) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 801 903) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point L830(lines 830 846) no Hoare annotation was computed. [2020-07-20 16:23:01,307 INFO L268 CegarLoopResult]: For program point L890(lines 890 897) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L851(lines 850 870) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L882(line 882) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L882-1(line 882) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L847(lines 847 888) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 801 903) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L866(line 866) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L866-1(line 866) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L825(lines 825 829) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L889(lines 889 900) no Hoare annotation was computed. [2020-07-20 16:23:01,308 INFO L268 CegarLoopResult]: For program point L852(lines 852 856) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 801 903) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L268 CegarLoopResult]: For program point L850-2(lines 850 870) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L268 CegarLoopResult]: For program point L871(lines 849 872) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-20 16:23:01,309 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 446 462) no Hoare annotation was computed. [2020-07-20 16:23:01,309 INFO L264 CegarLoopResult]: At program point L457(line 457) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-20 16:23:01,310 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 446 462) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point L457-1(lines 446 462) no Hoare annotation was computed. [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point L453(lines 453 459) no Hoare annotation was computed. [2020-07-20 16:23:01,310 INFO L264 CegarLoopResult]: At program point L451(line 451) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point L451-1(line 451) no Hoare annotation was computed. [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 156 164) no Hoare annotation was computed. [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 156 164) no Hoare annotation was computed. [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 156 164) no Hoare annotation was computed. [2020-07-20 16:23:01,310 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 527 545) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point L536(lines 536 540) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L271 CegarLoopResult]: At program point L534(line 534) the Hoare annotation is: true [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point L536-2(lines 536 540) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 527 545) the Hoare annotation is: true [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point L534-1(line 534) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 527 545) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 112 123) 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))))) [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 112 123) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point L116-1(lines 112 123) no Hoare annotation was computed. [2020-07-20 16:23:01,311 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,312 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,312 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,312 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 124 132) the Hoare annotation is: true [2020-07-20 16:23:01,312 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 124 132) no Hoare annotation was computed. [2020-07-20 16:23:01,312 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 124 132) no Hoare annotation was computed. [2020-07-20 16:23:01,312 INFO L264 CegarLoopResult]: At program point L342(line 342) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (and (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse7 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse2 .cse4) (or .cse0 .cse5 .cse6 .cse2) (or .cse0 .cse7 .cse1) (or .cse0 .cse7 .cse5 .cse6) (or .cse3 .cse0 .cse7 .cse4))) [2020-07-20 16:23:01,312 INFO L264 CegarLoopResult]: At program point L340(lines 340 346) the Hoare annotation is: (let ((.cse6 (= 0 |old(~pumpRunning~0)|))) (let ((.cse4 (= 0 ~pumpRunning~0)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not .cse6)) (.cse8 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse4) (or .cse6 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse7) (or .cse1 .cse2 .cse3 .cse8) (or .cse1 .cse5 .cse2 .cse8) (or .cse0 .cse1 .cse5 .cse7)))) [2020-07-20 16:23:01,313 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 329 352) the Hoare annotation is: (let ((.cse4 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse3 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse4 .cse5) (or .cse0 .cse4 .cse2) (or .cse3 .cse0 .cse1 .cse5))) [2020-07-20 16:23:01,313 INFO L264 CegarLoopResult]: At program point L335(line 335) the Hoare annotation is: (let ((.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse3) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse5 .cse2) (or .cse0 .cse3 .cse5) (or .cse4 .cse0 .cse1 .cse6))) [2020-07-20 16:23:01,313 INFO L268 CegarLoopResult]: For program point L333(lines 332 351) no Hoare annotation was computed. [2020-07-20 16:23:01,313 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 329 352) no Hoare annotation was computed. [2020-07-20 16:23:01,313 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 329 352) no Hoare annotation was computed. [2020-07-20 16:23:01,313 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 227 256) no Hoare annotation was computed. [2020-07-20 16:23:01,313 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 227 256) the Hoare annotation is: true [2020-07-20 16:23:01,314 INFO L271 CegarLoopResult]: At program point L252(lines 227 256) the Hoare annotation is: true [2020-07-20 16:23:01,314 INFO L268 CegarLoopResult]: For program point L248(line 248) no Hoare annotation was computed. [2020-07-20 16:23:01,314 INFO L268 CegarLoopResult]: For program point L241(lines 241 245) no Hoare annotation was computed. [2020-07-20 16:23:01,314 INFO L271 CegarLoopResult]: At program point L241-1(lines 241 245) the Hoare annotation is: true [2020-07-20 16:23:01,314 INFO L268 CegarLoopResult]: For program point L238(line 238) no Hoare annotation was computed. [2020-07-20 16:23:01,314 INFO L271 CegarLoopResult]: At program point L237-2(lines 237 251) the Hoare annotation is: true [2020-07-20 16:23:01,314 INFO L271 CegarLoopResult]: At program point L233(line 233) the Hoare annotation is: true [2020-07-20 16:23:01,314 INFO L268 CegarLoopResult]: For program point L233-1(line 233) no Hoare annotation was computed. [2020-07-20 16:23:01,315 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 88 99) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (= 0 ~pumpRunning~0)) (.cse5 (<= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse1 .cse2 .cse5) (or .cse0 .cse6 .cse2 .cse3) (or .cse4 .cse0 .cse6 .cse2 .cse5))) [2020-07-20 16:23:01,315 INFO L268 CegarLoopResult]: For program point L92-1(lines 88 99) no Hoare annotation was computed. [2020-07-20 16:23:01,315 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 88 99) no Hoare annotation was computed. [2020-07-20 16:23:01,315 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 282 288) no Hoare annotation was computed. [2020-07-20 16:23:01,315 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 282 288) the Hoare annotation is: true [2020-07-20 16:23:01,315 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,315 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 16:23:01,315 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 16:23:01,315 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:23:01,316 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 361 385) 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)))) [2020-07-20 16:23:01,316 INFO L264 CegarLoopResult]: At program point L380(line 380) 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))) [2020-07-20 16:23:01,316 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 361 385) no Hoare annotation was computed. [2020-07-20 16:23:01,316 INFO L268 CegarLoopResult]: For program point L380-1(lines 361 385) no Hoare annotation was computed. [2020-07-20 16:23:01,316 INFO L264 CegarLoopResult]: At program point L375(line 375) the Hoare annotation is: (let ((.cse0 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= 0 ~pumpRunning~0))) (.cse2 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not .cse2)) (or .cse0 .cse1 .cse3) (or .cse2 .cse1 .cse3))) [2020-07-20 16:23:01,316 INFO L264 CegarLoopResult]: At program point L371(line 371) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= 2 ~waterLevel~0)) (.cse2 (= 0 ~pumpRunning~0))) (and (or .cse0 (and .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 (and .cse1 .cse2) (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 16:23:01,316 INFO L268 CegarLoopResult]: For program point L369(lines 369 377) no Hoare annotation was computed. [2020-07-20 16:23:01,317 INFO L264 CegarLoopResult]: At program point L367(line 367) 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))) [2020-07-20 16:23:01,317 INFO L268 CegarLoopResult]: For program point L367-1(line 367) no Hoare annotation was computed. [2020-07-20 16:23:01,317 INFO L268 CegarLoopResult]: For program point L365(lines 365 382) no Hoare annotation was computed. [2020-07-20 16:23:01,317 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 100 111) no Hoare annotation was computed. [2020-07-20 16:23:01,317 INFO L268 CegarLoopResult]: For program point L104-1(lines 100 111) no Hoare annotation was computed. [2020-07-20 16:23:01,317 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 100 111) the Hoare annotation is: (let ((.cse5 (not (= 0 ~methaneLevelCritical~0))) (.cse3 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse6 (<= ~waterLevel~0 1)) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse0 .cse5 .cse6) (or .cse0 .cse5 .cse3) (or .cse4 .cse0 .cse1 .cse6 .cse2))) [2020-07-20 16:23:01,317 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 189 196) no Hoare annotation was computed. [2020-07-20 16:23:01,318 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-07-20 16:23:01,318 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 189 196) the Hoare annotation is: true [2020-07-20 16:23:01,318 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 189 196) no Hoare annotation was computed. [2020-07-20 16:23:01,318 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification1_spec__1ENTRY(lines 199 223) the Hoare annotation is: true [2020-07-20 16:23:01,318 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification1_spec__1EXIT(lines 199 223) no Hoare annotation was computed. [2020-07-20 16:23:01,318 INFO L264 CegarLoopResult]: At program point L213(line 213) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 ~pumpRunning~0))) (or .cse0 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-20 16:23:01,318 INFO L268 CegarLoopResult]: For program point L211(lines 211 217) no Hoare annotation was computed. [2020-07-20 16:23:01,318 INFO L264 CegarLoopResult]: At program point L209(line 209) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 ~methaneLevelCritical~0))) [2020-07-20 16:23:01,318 INFO L268 CegarLoopResult]: For program point L209-1(line 209) no Hoare annotation was computed. [2020-07-20 16:23:01,319 INFO L268 CegarLoopResult]: For program point L207(lines 207 220) no Hoare annotation was computed. [2020-07-20 16:23:01,319 INFO L268 CegarLoopResult]: For program point L207-1(lines 199 223) no Hoare annotation was computed. [2020-07-20 16:23:01,319 INFO L271 CegarLoopResult]: At program point L205(line 205) the Hoare annotation is: true [2020-07-20 16:23:01,319 INFO L268 CegarLoopResult]: For program point L205-1(line 205) no Hoare annotation was computed. [2020-07-20 16:23:01,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:23:01 BoogieIcfgContainer [2020-07-20 16:23:01,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:23:01,337 INFO L168 Benchmark]: Toolchain (without parser) took 19034.36 ms. Allocated memory was 141.0 MB in the beginning and 442.0 MB in the end (delta: 300.9 MB). Free memory was 101.5 MB in the beginning and 279.0 MB in the end (delta: -177.5 MB). Peak memory consumption was 275.0 MB. Max. memory is 7.1 GB. [2020-07-20 16:23:01,338 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 141.0 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 16:23:01,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.45 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 101.1 MB in the beginning and 169.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-07-20 16:23:01,339 INFO L168 Benchmark]: Boogie Preprocessor took 85.38 ms. Allocated memory is still 201.9 MB. Free memory was 169.6 MB in the beginning and 164.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 16:23:01,340 INFO L168 Benchmark]: RCFGBuilder took 1270.84 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 164.8 MB in the beginning and 193.0 MB in the end (delta: -28.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:23:01,340 INFO L168 Benchmark]: TraceAbstraction took 16929.21 ms. Allocated memory was 233.8 MB in the beginning and 442.0 MB in the end (delta: 208.1 MB). Free memory was 193.0 MB in the beginning and 279.0 MB in the end (delta: -86.0 MB). Peak memory consumption was 273.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:23:01,343 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 141.0 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 743.45 ms. Allocated memory was 141.0 MB in the beginning and 201.9 MB in the end (delta: 60.8 MB). Free memory was 101.1 MB in the beginning and 169.6 MB in the end (delta: -68.6 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 85.38 ms. Allocated memory is still 201.9 MB. Free memory was 169.6 MB in the beginning and 164.8 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1270.84 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 164.8 MB in the beginning and 193.0 MB in the end (delta: -28.2 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16929.21 ms. Allocated memory was 233.8 MB in the beginning and 442.0 MB in the end (delta: 208.1 MB). Free memory was 193.0 MB in the beginning and 279.0 MB in the end (delta: -86.0 MB). Peak memory consumption was 273.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: 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: 237]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 575]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= systemActive) - InvariantResult [Line: 227]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(1 <= systemActive)) || ((1 <= methaneLevelCritical && 0 == pumpRunning) && splverifierCounter <= 0)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (0 == methaneLevelCritical && splverifierCounter <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 252 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.5s, OverallIterations: 12, TraceHistogramMax: 4, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2361 SDtfs, 987 SDslu, 4832 SDs, 0 SdLazy, 1789 SolverSat, 221 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1148 GetRequests, 1099 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=853occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 114 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 2195 PreInvPairs, 2288 NumberOfFragments, 1768 HoareAnnotationTreeSize, 2195 FomulaSimplifications, 1777 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 68 FomulaSimplificationsInter, 8051 FormulaSimplificationTreeSizeReductionInter, 4.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 3.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1151 NumberOfCodeBlocks, 944 NumberOfCodeBlocksAsserted, 39 NumberOfCheckSat, 1139 ConstructedInterpolants, 0 QuantifiedInterpolants, 226765 SizeOfPredicates, 25 NumberOfNonLiveVariables, 8332 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 116/116 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...