/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_spec5_product45.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 16:26:14,377 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 16:26:14,379 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 16:26:14,391 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 16:26:14,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 16:26:14,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 16:26:14,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 16:26:14,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 16:26:14,396 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 16:26:14,397 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 16:26:14,398 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 16:26:14,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 16:26:14,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 16:26:14,400 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 16:26:14,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 16:26:14,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 16:26:14,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 16:26:14,404 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 16:26:14,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 16:26:14,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 16:26:14,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 16:26:14,411 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 16:26:14,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 16:26:14,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 16:26:14,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 16:26:14,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 16:26:14,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 16:26:14,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 16:26:14,417 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 16:26:14,418 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 16:26:14,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 16:26:14,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 16:26:14,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 16:26:14,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 16:26:14,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 16:26:14,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 16:26:14,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 16:26:14,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 16:26:14,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 16:26:14,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 16:26:14,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 16:26:14,426 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 16:26:14,440 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 16:26:14,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 16:26:14,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 16:26:14,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 16:26:14,442 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 16:26:14,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 16:26:14,442 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 16:26:14,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 16:26:14,443 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 16:26:14,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 16:26:14,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 16:26:14,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 16:26:14,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 16:26:14,443 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 16:26:14,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 16:26:14,444 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 16:26:14,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 16:26:14,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 16:26:14,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 16:26:14,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 16:26:14,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 16:26:14,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 16:26:14,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 16:26:14,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 16:26:14,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 16:26:14,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 16:26:14,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:14,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 16:26:14,447 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 16:26:14,447 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 16:26:14,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 16:26:14,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 16:26:14,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 16:26:14,721 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 16:26:14,721 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 16:26:14,722 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2020-07-20 16:26:14,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e1645c5/9b4d836c0dc441f8a17a0864fb99ded7/FLAGfbf7bc743 [2020-07-20 16:26:15,295 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 16:26:15,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product45.cil.c [2020-07-20 16:26:15,310 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e1645c5/9b4d836c0dc441f8a17a0864fb99ded7/FLAGfbf7bc743 [2020-07-20 16:26:15,624 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f6e1645c5/9b4d836c0dc441f8a17a0864fb99ded7 [2020-07-20 16:26:15,633 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 16:26:15,636 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 16:26:15,637 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 16:26:15,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 16:26:15,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 16:26:15,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:26:15" (1/1) ... [2020-07-20 16:26:15,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aede21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:15, skipping insertion in model container [2020-07-20 16:26:15,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 04:26:15" (1/1) ... [2020-07-20 16:26:15,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 16:26:15,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 16:26:16,110 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:26:16,123 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 16:26:16,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 16:26:16,251 INFO L208 MainTranslator]: Completed translation [2020-07-20 16:26:16,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16 WrapperNode [2020-07-20 16:26:16,251 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 16:26:16,252 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 16:26:16,252 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 16:26:16,252 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 16:26:16,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,335 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (1/1) ... [2020-07-20 16:26:16,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 16:26:16,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 16:26:16,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 16:26:16,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 16:26:16,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (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 16:26:16,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 16:26:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 16:26:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 16:26:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 16:26:16,437 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 16:26:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 16:26:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 16:26:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 16:26:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 16:26:16,438 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-20 16:26:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 16:26:16,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 16:26:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 16:26:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 16:26:16,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 16:26:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 16:26:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 16:26:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2020-07-20 16:26:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2020-07-20 16:26:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2020-07-20 16:26:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 16:26:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-20 16:26:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:26:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 16:26:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:26:16,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 16:26:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 16:26:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 16:26:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 16:26:16,444 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 16:26:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-20 16:26:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 16:26:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 16:26:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 16:26:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 16:26:16,445 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 16:26:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 16:26:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 16:26:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 16:26:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 16:26:16,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 16:26:16,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 16:26:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 16:26:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 16:26:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 16:26:16,447 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 16:26:16,448 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 16:26:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 16:26:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 16:26:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 16:26:16,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 16:26:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 16:26:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 16:26:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 16:26:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 16:26:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 16:26:16,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 16:26:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 16:26:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 16:26:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 16:26:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 16:26:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 16:26:16,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 16:26:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 16:26:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2020-07-20 16:26:16,452 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2020-07-20 16:26:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2020-07-20 16:26:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 16:26:16,453 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 16:26:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 16:26:16,454 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 16:26:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 16:26:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-20 16:26:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-20 16:26:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-20 16:26:16,455 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 16:26:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-20 16:26:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 16:26:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 16:26:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 16:26:16,456 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 16:26:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 16:26:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 16:26:16,457 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 16:26:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 16:26:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 16:26:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 16:26:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 16:26:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 16:26:16,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 16:26:17,535 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 16:26:17,535 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 16:26:17,541 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:26:17 BoogieIcfgContainer [2020-07-20 16:26:17,541 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 16:26:17,543 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 16:26:17,543 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 16:26:17,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 16:26:17,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 04:26:15" (1/3) ... [2020-07-20 16:26:17,548 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279fe749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:26:17, skipping insertion in model container [2020-07-20 16:26:17,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 04:26:16" (2/3) ... [2020-07-20 16:26:17,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@279fe749 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 04:26:17, skipping insertion in model container [2020-07-20 16:26:17,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 04:26:17" (3/3) ... [2020-07-20 16:26:17,551 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2020-07-20 16:26:17,562 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 16:26:17,571 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 16:26:17,586 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 16:26:17,613 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 16:26:17,613 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 16:26:17,613 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 16:26:17,613 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 16:26:17,614 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 16:26:17,614 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 16:26:17,614 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 16:26:17,614 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 16:26:17,638 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-20 16:26:17,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2020-07-20 16:26:17,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:17,650 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] [2020-07-20 16:26:17,651 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:17,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:17,657 INFO L82 PathProgramCache]: Analyzing trace with hash -587014934, now seen corresponding path program 1 times [2020-07-20 16:26:17,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:17,667 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583925114] [2020-07-20 16:26:17,667 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 16:26:18,215 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:26:18,216 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:18,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-20 16:26:18,235 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:18,268 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 16:26:18,269 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:18,270 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583925114] [2020-07-20 16:26:18,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:18,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-20 16:26:18,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497680541] [2020-07-20 16:26:18,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-20 16:26:18,278 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:18,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-20 16:26:18,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-20 16:26:18,296 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 2 states. [2020-07-20 16:26:18,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:18,344 INFO L93 Difference]: Finished difference Result 282 states and 349 transitions. [2020-07-20 16:26:18,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-20 16:26:18,345 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2020-07-20 16:26:18,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:18,359 INFO L225 Difference]: With dead ends: 282 [2020-07-20 16:26:18,360 INFO L226 Difference]: Without dead ends: 143 [2020-07-20 16:26:18,365 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 58 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 16:26:18,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2020-07-20 16:26:18,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2020-07-20 16:26:18,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-07-20 16:26:18,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 168 transitions. [2020-07-20 16:26:18,423 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 168 transitions. Word has length 59 [2020-07-20 16:26:18,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:18,424 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 168 transitions. [2020-07-20 16:26:18,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-20 16:26:18,424 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 168 transitions. [2020-07-20 16:26:18,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2020-07-20 16:26:18,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:18,431 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] [2020-07-20 16:26:18,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:18,645 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:18,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:18,646 INFO L82 PathProgramCache]: Analyzing trace with hash -1620614948, now seen corresponding path program 1 times [2020-07-20 16:26:18,647 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:18,647 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1920004033] [2020-07-20 16:26:18,648 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 16:26:19,143 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:26:19,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:19,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:26:19,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:19,189 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 16:26:19,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:19,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1920004033] [2020-07-20 16:26:19,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:19,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:26:19,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960174755] [2020-07-20 16:26:19,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:26:19,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:19,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:26:19,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:26:19,193 INFO L87 Difference]: Start difference. First operand 143 states and 168 transitions. Second operand 3 states. [2020-07-20 16:26:19,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:19,216 INFO L93 Difference]: Finished difference Result 231 states and 271 transitions. [2020-07-20 16:26:19,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:26:19,217 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2020-07-20 16:26:19,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:19,220 INFO L225 Difference]: With dead ends: 231 [2020-07-20 16:26:19,220 INFO L226 Difference]: Without dead ends: 134 [2020-07-20 16:26:19,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 58 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 16:26:19,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-20 16:26:19,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-07-20 16:26:19,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-20 16:26:19,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 156 transitions. [2020-07-20 16:26:19,238 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 156 transitions. Word has length 60 [2020-07-20 16:26:19,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:19,238 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 156 transitions. [2020-07-20 16:26:19,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:26:19,238 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 156 transitions. [2020-07-20 16:26:19,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-20 16:26:19,241 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:19,241 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] [2020-07-20 16:26:19,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:19,456 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:19,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:19,457 INFO L82 PathProgramCache]: Analyzing trace with hash 272490530, now seen corresponding path program 1 times [2020-07-20 16:26:19,458 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:19,458 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1651130162] [2020-07-20 16:26:19,459 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 16:26:19,859 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:26:19,859 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:19,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-20 16:26:19,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:19,899 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 16:26:19,900 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:19,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1651130162] [2020-07-20 16:26:19,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:19,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:26:19,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28225387] [2020-07-20 16:26:19,903 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:26:19,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:19,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:26:19,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:26:19,905 INFO L87 Difference]: Start difference. First operand 134 states and 156 transitions. Second operand 3 states. [2020-07-20 16:26:19,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:19,940 INFO L93 Difference]: Finished difference Result 240 states and 285 transitions. [2020-07-20 16:26:19,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:26:19,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2020-07-20 16:26:19,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:19,943 INFO L225 Difference]: With dead ends: 240 [2020-07-20 16:26:19,943 INFO L226 Difference]: Without dead ends: 134 [2020-07-20 16:26:19,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 16:26:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-20 16:26:19,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2020-07-20 16:26:19,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2020-07-20 16:26:19,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 155 transitions. [2020-07-20 16:26:19,961 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 155 transitions. Word has length 64 [2020-07-20 16:26:19,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:19,963 INFO L479 AbstractCegarLoop]: Abstraction has 134 states and 155 transitions. [2020-07-20 16:26:19,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:26:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 155 transitions. [2020-07-20 16:26:19,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-07-20 16:26:19,967 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:19,967 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] [2020-07-20 16:26:20,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:20,181 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:20,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:20,182 INFO L82 PathProgramCache]: Analyzing trace with hash -1080536843, now seen corresponding path program 1 times [2020-07-20 16:26:20,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:20,183 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1408376174] [2020-07-20 16:26:20,184 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 16:26:20,579 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:26:20,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:20,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 16:26:20,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:20,634 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 16:26:20,634 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:20,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1408376174] [2020-07-20 16:26:20,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:20,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:26:20,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791813700] [2020-07-20 16:26:20,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:26:20,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:20,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:26:20,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:26:20,637 INFO L87 Difference]: Start difference. First operand 134 states and 155 transitions. Second operand 6 states. [2020-07-20 16:26:21,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:21,315 INFO L93 Difference]: Finished difference Result 332 states and 400 transitions. [2020-07-20 16:26:21,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:26:21,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 77 [2020-07-20 16:26:21,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:21,322 INFO L225 Difference]: With dead ends: 332 [2020-07-20 16:26:21,322 INFO L226 Difference]: Without dead ends: 226 [2020-07-20 16:26:21,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 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 16:26:21,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-07-20 16:26:21,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 211. [2020-07-20 16:26:21,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 211 states. [2020-07-20 16:26:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 238 transitions. [2020-07-20 16:26:21,353 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 238 transitions. Word has length 77 [2020-07-20 16:26:21,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:21,354 INFO L479 AbstractCegarLoop]: Abstraction has 211 states and 238 transitions. [2020-07-20 16:26:21,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:26:21,354 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 238 transitions. [2020-07-20 16:26:21,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-20 16:26:21,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:21,356 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] [2020-07-20 16:26:21,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:21,570 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:21,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:21,571 INFO L82 PathProgramCache]: Analyzing trace with hash -1912690952, now seen corresponding path program 1 times [2020-07-20 16:26:21,571 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:21,572 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1252326762] [2020-07-20 16:26:21,572 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 16:26:21,937 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:26:21,937 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:21,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:26:21,947 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:21,997 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 16:26:21,997 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:21,998 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1252326762] [2020-07-20 16:26:21,998 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:21,998 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:26:21,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577571071] [2020-07-20 16:26:21,999 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:26:21,999 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:21,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:26:22,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:26:22,000 INFO L87 Difference]: Start difference. First operand 211 states and 238 transitions. Second operand 6 states. [2020-07-20 16:26:22,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:22,230 INFO L93 Difference]: Finished difference Result 397 states and 456 transitions. [2020-07-20 16:26:22,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 16:26:22,232 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 91 [2020-07-20 16:26:22,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:22,240 INFO L225 Difference]: With dead ends: 397 [2020-07-20 16:26:22,240 INFO L226 Difference]: Without dead ends: 214 [2020-07-20 16:26:22,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 86 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 16:26:22,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-07-20 16:26:22,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 210. [2020-07-20 16:26:22,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2020-07-20 16:26:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 235 transitions. [2020-07-20 16:26:22,293 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 235 transitions. Word has length 91 [2020-07-20 16:26:22,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:22,294 INFO L479 AbstractCegarLoop]: Abstraction has 210 states and 235 transitions. [2020-07-20 16:26:22,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:26:22,294 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 235 transitions. [2020-07-20 16:26:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-20 16:26:22,296 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:22,297 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 16:26:22,503 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:22,503 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:22,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:22,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1624249196, now seen corresponding path program 1 times [2020-07-20 16:26:22,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:22,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490091839] [2020-07-20 16:26:22,505 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 16:26:22,843 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:26:22,844 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:22,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 755 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 16:26:22,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:22,894 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 16:26:22,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:22,895 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490091839] [2020-07-20 16:26:22,895 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:22,896 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 16:26:22,896 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756911618] [2020-07-20 16:26:22,897 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 16:26:22,897 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:22,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 16:26:22,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-20 16:26:22,898 INFO L87 Difference]: Start difference. First operand 210 states and 235 transitions. Second operand 6 states. [2020-07-20 16:26:22,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:22,937 INFO L93 Difference]: Finished difference Result 399 states and 456 transitions. [2020-07-20 16:26:22,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 16:26:22,938 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 107 [2020-07-20 16:26:22,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:22,941 INFO L225 Difference]: With dead ends: 399 [2020-07-20 16:26:22,941 INFO L226 Difference]: Without dead ends: 217 [2020-07-20 16:26:22,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 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 16:26:22,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2020-07-20 16:26:22,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 215. [2020-07-20 16:26:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2020-07-20 16:26:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 240 transitions. [2020-07-20 16:26:22,965 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 240 transitions. Word has length 107 [2020-07-20 16:26:22,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:22,965 INFO L479 AbstractCegarLoop]: Abstraction has 215 states and 240 transitions. [2020-07-20 16:26:22,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 16:26:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 240 transitions. [2020-07-20 16:26:22,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-20 16:26:22,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:22,968 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 16:26:23,181 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:23,182 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:23,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:23,183 INFO L82 PathProgramCache]: Analyzing trace with hash 304023506, now seen corresponding path program 1 times [2020-07-20 16:26:23,184 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:23,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242249314] [2020-07-20 16:26:23,185 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 16:26:23,339 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-20 16:26:23,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:23,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-20 16:26:23,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:23,379 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 16:26:23,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:23,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242249314] [2020-07-20 16:26:23,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:23,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 16:26:23,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925543820] [2020-07-20 16:26:23,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 16:26:23,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:23,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 16:26:23,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 16:26:23,381 INFO L87 Difference]: Start difference. First operand 215 states and 240 transitions. Second operand 5 states. [2020-07-20 16:26:23,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:23,404 INFO L93 Difference]: Finished difference Result 409 states and 467 transitions. [2020-07-20 16:26:23,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 16:26:23,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-07-20 16:26:23,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:23,409 INFO L225 Difference]: With dead ends: 409 [2020-07-20 16:26:23,410 INFO L226 Difference]: Without dead ends: 222 [2020-07-20 16:26:23,410 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 103 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 16:26:23,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2020-07-20 16:26:23,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 219. [2020-07-20 16:26:23,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2020-07-20 16:26:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 244 transitions. [2020-07-20 16:26:23,430 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 244 transitions. Word has length 107 [2020-07-20 16:26:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:23,431 INFO L479 AbstractCegarLoop]: Abstraction has 219 states and 244 transitions. [2020-07-20 16:26:23,431 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 16:26:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 244 transitions. [2020-07-20 16:26:23,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-07-20 16:26:23,433 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:23,433 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 16:26:23,647 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:23,648 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:23,649 INFO L82 PathProgramCache]: Analyzing trace with hash 63483377, now seen corresponding path program 1 times [2020-07-20 16:26:23,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:23,650 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629707352] [2020-07-20 16:26:23,650 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 16:26:23,976 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-20 16:26:23,976 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:23,980 INFO L263 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-20 16:26:23,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:24,020 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 16:26:24,021 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:24,021 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629707352] [2020-07-20 16:26:24,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:24,021 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 16:26:24,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023380116] [2020-07-20 16:26:24,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 16:26:24,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:24,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 16:26:24,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 16:26:24,023 INFO L87 Difference]: Start difference. First operand 219 states and 244 transitions. Second operand 3 states. [2020-07-20 16:26:24,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:24,058 INFO L93 Difference]: Finished difference Result 556 states and 648 transitions. [2020-07-20 16:26:24,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 16:26:24,059 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 107 [2020-07-20 16:26:24,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:24,062 INFO L225 Difference]: With dead ends: 556 [2020-07-20 16:26:24,063 INFO L226 Difference]: Without dead ends: 365 [2020-07-20 16:26:24,064 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 104 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 16:26:24,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2020-07-20 16:26:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 362. [2020-07-20 16:26:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 362 states. [2020-07-20 16:26:24,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 416 transitions. [2020-07-20 16:26:24,092 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 416 transitions. Word has length 107 [2020-07-20 16:26:24,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:24,093 INFO L479 AbstractCegarLoop]: Abstraction has 362 states and 416 transitions. [2020-07-20 16:26:24,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 16:26:24,093 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 416 transitions. [2020-07-20 16:26:24,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-20 16:26:24,096 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:24,097 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, 1, 1, 1, 1] [2020-07-20 16:26:24,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:24,310 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:24,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:24,311 INFO L82 PathProgramCache]: Analyzing trace with hash 1148604343, now seen corresponding path program 1 times [2020-07-20 16:26:24,312 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:24,312 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [775002154] [2020-07-20 16:26:24,313 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 16:26:24,643 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:26:24,643 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:24,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-20 16:26:24,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:24,755 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 16:26:24,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 16:26:24,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [775002154] [2020-07-20 16:26:24,756 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 16:26:24,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-20 16:26:24,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858898548] [2020-07-20 16:26:24,756 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 16:26:24,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:24,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 16:26:24,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-20 16:26:24,757 INFO L87 Difference]: Start difference. First operand 362 states and 416 transitions. Second operand 10 states. [2020-07-20 16:26:26,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:26,123 INFO L93 Difference]: Finished difference Result 976 states and 1271 transitions. [2020-07-20 16:26:26,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-20 16:26:26,124 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 111 [2020-07-20 16:26:26,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:26,130 INFO L225 Difference]: With dead ends: 976 [2020-07-20 16:26:26,130 INFO L226 Difference]: Without dead ends: 642 [2020-07-20 16:26:26,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2020-07-20 16:26:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2020-07-20 16:26:26,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 480. [2020-07-20 16:26:26,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 480 states. [2020-07-20 16:26:26,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 563 transitions. [2020-07-20 16:26:26,174 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 563 transitions. Word has length 111 [2020-07-20 16:26:26,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:26,174 INFO L479 AbstractCegarLoop]: Abstraction has 480 states and 563 transitions. [2020-07-20 16:26:26,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 16:26:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 563 transitions. [2020-07-20 16:26:26,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-20 16:26:26,177 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 16:26:26,178 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:26:26,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:26,392 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 16:26:26,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 16:26:26,393 INFO L82 PathProgramCache]: Analyzing trace with hash 490171745, now seen corresponding path program 1 times [2020-07-20 16:26:26,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 16:26:26,394 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864670032] [2020-07-20 16:26:26,394 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 16:26:26,768 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 16:26:26,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 16:26:26,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 16:26:26,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 16:26:26,844 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 35 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 16:26:26,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 16:26:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-20 16:26:27,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864670032] [2020-07-20 16:26:27,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 16:26:27,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-07-20 16:26:27,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861268560] [2020-07-20 16:26:27,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-20 16:26:27,305 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 16:26:27,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-20 16:26:27,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-20 16:26:27,305 INFO L87 Difference]: Start difference. First operand 480 states and 563 transitions. Second operand 10 states. [2020-07-20 16:26:28,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 16:26:28,074 INFO L93 Difference]: Finished difference Result 574 states and 689 transitions. [2020-07-20 16:26:28,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-20 16:26:28,074 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-07-20 16:26:28,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 16:26:28,075 INFO L225 Difference]: With dead ends: 574 [2020-07-20 16:26:28,075 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 16:26:28,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 327 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-07-20 16:26:28,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 16:26:28,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 16:26:28,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 16:26:28,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 16:26:28,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 170 [2020-07-20 16:26:28,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 16:26:28,079 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 16:26:28,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-20 16:26:28,079 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 16:26:28,079 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 16:26:28,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 16:26:28,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 16:26:29,529 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-20 16:26:29,985 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2020-07-20 16:26:30,241 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 27 [2020-07-20 16:26:30,396 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 26 [2020-07-20 16:26:30,612 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2020-07-20 16:26:30,790 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-07-20 16:26:31,037 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 26 [2020-07-20 16:26:31,225 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 31 [2020-07-20 16:26:31,558 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 36 [2020-07-20 16:26:31,854 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 39 [2020-07-20 16:26:32,643 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 27 [2020-07-20 16:26:32,795 INFO L268 CegarLoopResult]: For program point L227-2(lines 227 248) no Hoare annotation was computed. [2020-07-20 16:26:32,795 INFO L268 CegarLoopResult]: For program point L249(lines 226 250) no Hoare annotation was computed. [2020-07-20 16:26:32,795 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 202 257) no Hoare annotation was computed. [2020-07-20 16:26:32,796 INFO L268 CegarLoopResult]: For program point L233(lines 233 237) no Hoare annotation was computed. [2020-07-20 16:26:32,796 INFO L268 CegarLoopResult]: For program point L233-1(lines 233 237) no Hoare annotation was computed. [2020-07-20 16:26:32,796 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 202 257) no Hoare annotation was computed. [2020-07-20 16:26:32,796 INFO L268 CegarLoopResult]: For program point L228(line 228) no Hoare annotation was computed. [2020-07-20 16:26:32,796 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 202 257) no Hoare annotation was computed. [2020-07-20 16:26:32,797 INFO L268 CegarLoopResult]: For program point L290-1(lines 290 294) no Hoare annotation was computed. [2020-07-20 16:26:32,797 INFO L268 CegarLoopResult]: For program point L285(line 285) no Hoare annotation was computed. [2020-07-20 16:26:32,797 INFO L268 CegarLoopResult]: For program point L284-2(lines 284 309) no Hoare annotation was computed. [2020-07-20 16:26:32,797 INFO L268 CegarLoopResult]: For program point L310(lines 283 311) no Hoare annotation was computed. [2020-07-20 16:26:32,798 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 258 317) no Hoare annotation was computed. [2020-07-20 16:26:32,798 INFO L268 CegarLoopResult]: For program point L303(line 303) no Hoare annotation was computed. [2020-07-20 16:26:32,799 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 258 317) no Hoare annotation was computed. [2020-07-20 16:26:32,799 INFO L268 CegarLoopResult]: For program point L303-1(line 303) no Hoare annotation was computed. [2020-07-20 16:26:32,799 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 258 317) no Hoare annotation was computed. [2020-07-20 16:26:32,799 INFO L268 CegarLoopResult]: For program point L290(lines 290 294) no Hoare annotation was computed. [2020-07-20 16:26:32,800 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 855 861) the Hoare annotation is: true [2020-07-20 16:26:32,800 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 855 861) no Hoare annotation was computed. [2020-07-20 16:26:32,800 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 862 870) no Hoare annotation was computed. [2020-07-20 16:26:32,800 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 862 870) the Hoare annotation is: true [2020-07-20 16:26:32,803 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 862 870) no Hoare annotation was computed. [2020-07-20 16:26:32,803 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification5_spec__1ENTRY(lines 518 525) the Hoare annotation is: true [2020-07-20 16:26:32,803 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__1EXIT(lines 518 525) no Hoare annotation was computed. [2020-07-20 16:26:32,803 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__1FINAL(lines 518 525) no Hoare annotation was computed. [2020-07-20 16:26:32,803 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification5_spec__2ENTRY(lines 526 535) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2)))) (and (or (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 .cse1 (not (<= ~pumpRunning~0 |old(~switchedOnBeforeTS~0)|)) (not (<= 1 ~pumpRunning~0))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse1 (<= 1 ~switchedOnBeforeTS~0) (not (= 0 ~pumpRunning~0))))) [2020-07-20 16:26:32,805 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__2EXIT(lines 526 535) no Hoare annotation was computed. [2020-07-20 16:26:32,805 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__2FINAL(lines 526 535) no Hoare annotation was computed. [2020-07-20 16:26:32,805 INFO L268 CegarLoopResult]: For program point L531(line 531) no Hoare annotation was computed. [2020-07-20 16:26:32,805 INFO L268 CegarLoopResult]: For program point L546-1(line 546) no Hoare annotation was computed. [2020-07-20 16:26:32,805 INFO L268 CegarLoopResult]: For program point L544(lines 544 561) no Hoare annotation was computed. [2020-07-20 16:26:32,806 INFO L268 CegarLoopResult]: For program point L544-1(lines 536 564) no Hoare annotation was computed. [2020-07-20 16:26:32,806 INFO L271 CegarLoopResult]: At program point L542(line 542) the Hoare annotation is: true [2020-07-20 16:26:32,806 INFO L268 CegarLoopResult]: For program point L542-1(line 542) no Hoare annotation was computed. [2020-07-20 16:26:32,806 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification5_spec__3ENTRY(lines 536 564) the Hoare annotation is: true [2020-07-20 16:26:32,806 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification5_spec__3EXIT(lines 536 564) no Hoare annotation was computed. [2020-07-20 16:26:32,806 INFO L264 CegarLoopResult]: At program point L551(line 551) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (= 0 ~pumpRunning~0))) (or .cse0 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1)) .cse2) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2020-07-20 16:26:32,806 INFO L268 CegarLoopResult]: For program point L549(lines 549 555) no Hoare annotation was computed. [2020-07-20 16:26:32,807 INFO L268 CegarLoopResult]: For program point L548(lines 548 558) no Hoare annotation was computed. [2020-07-20 16:26:32,807 INFO L264 CegarLoopResult]: At program point L546(line 546) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~pumpRunning~0))))) [2020-07-20 16:26:32,807 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 945 967) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,807 INFO L264 CegarLoopResult]: At program point L957(line 957) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,807 INFO L264 CegarLoopResult]: At program point L957-1(line 957) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,808 INFO L268 CegarLoopResult]: For program point L955(lines 955 962) no Hoare annotation was computed. [2020-07-20 16:26:32,808 INFO L268 CegarLoopResult]: For program point L955-1(lines 955 962) no Hoare annotation was computed. [2020-07-20 16:26:32,808 INFO L268 CegarLoopResult]: For program point L953(line 953) no Hoare annotation was computed. [2020-07-20 16:26:32,808 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 945 967) no Hoare annotation was computed. [2020-07-20 16:26:32,808 INFO L264 CegarLoopResult]: At program point L952(line 952) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,808 INFO L264 CegarLoopResult]: At program point L951(line 951) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,808 INFO L264 CegarLoopResult]: At program point L951-1(line 951) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 945 967) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 903 926) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 903 926) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 903 926) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point L921(line 921) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point L920(line 920) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point L919(line 919) no Hoare annotation was computed. [2020-07-20 16:26:32,809 INFO L268 CegarLoopResult]: For program point L918(line 918) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L917(line 917) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L916(line 916) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L915(line 915) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L914(line 914) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L913(line 913) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L912(line 912) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L911(line 911) no Hoare annotation was computed. [2020-07-20 16:26:32,810 INFO L268 CegarLoopResult]: For program point L910(line 910) no Hoare annotation was computed. [2020-07-20 16:26:32,811 INFO L268 CegarLoopResult]: For program point L909(line 909) no Hoare annotation was computed. [2020-07-20 16:26:32,811 INFO L268 CegarLoopResult]: For program point L908(line 908) no Hoare annotation was computed. [2020-07-20 16:26:32,811 INFO L264 CegarLoopResult]: At program point L627(line 627) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))))) [2020-07-20 16:26:32,811 INFO L268 CegarLoopResult]: For program point L627-1(lines 608 632) no Hoare annotation was computed. [2020-07-20 16:26:32,812 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 608 632) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 16:26:32,812 INFO L264 CegarLoopResult]: At program point L622(line 622) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__methaneQuery_~tmp~4))))) [2020-07-20 16:26:32,812 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 608 632) no Hoare annotation was computed. [2020-07-20 16:26:32,812 INFO L264 CegarLoopResult]: At program point L618(line 618) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 16:26:32,812 INFO L268 CegarLoopResult]: For program point L616(lines 616 624) no Hoare annotation was computed. [2020-07-20 16:26:32,812 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 16:26:32,813 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 16:26:32,813 INFO L268 CegarLoopResult]: For program point L612(lines 612 629) no Hoare annotation was computed. [2020-07-20 16:26:32,813 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 703 711) no Hoare annotation was computed. [2020-07-20 16:26:32,813 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 703 711) the Hoare annotation is: true [2020-07-20 16:26:32,813 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 703 711) no Hoare annotation was computed. [2020-07-20 16:26:32,813 INFO L268 CegarLoopResult]: For program point L731(lines 731 739) no Hoare annotation was computed. [2020-07-20 16:26:32,813 INFO L268 CegarLoopResult]: For program point L731-2(lines 731 739) no Hoare annotation was computed. [2020-07-20 16:26:32,814 INFO L268 CegarLoopResult]: For program point L719(lines 719 727) no Hoare annotation was computed. [2020-07-20 16:26:32,814 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 712 747) no Hoare annotation was computed. [2020-07-20 16:26:32,815 INFO L268 CegarLoopResult]: For program point L719-2(lines 719 727) no Hoare annotation was computed. [2020-07-20 16:26:32,815 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 712 747) no Hoare annotation was computed. [2020-07-20 16:26:32,815 INFO L268 CegarLoopResult]: For program point L742(line 742) no Hoare annotation was computed. [2020-07-20 16:26:32,815 INFO L268 CegarLoopResult]: For program point L742-1(line 742) no Hoare annotation was computed. [2020-07-20 16:26:32,815 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 712 747) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 848 854) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 848 854) the Hoare annotation is: true [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 156 201) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 156 201) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 156 201) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 469 514) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 469 514) no Hoare annotation was computed. [2020-07-20 16:26:32,816 INFO L268 CegarLoopResult]: For program point L489(lines 489 496) no Hoare annotation was computed. [2020-07-20 16:26:32,817 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 469 514) no Hoare annotation was computed. [2020-07-20 16:26:32,817 INFO L268 CegarLoopResult]: For program point L483(lines 483 503) no Hoare annotation was computed. [2020-07-20 16:26:32,817 INFO L268 CegarLoopResult]: For program point L483-1(lines 483 503) no Hoare annotation was computed. [2020-07-20 16:26:32,817 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 934 944) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,817 INFO L264 CegarLoopResult]: At program point L939(line 939) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,817 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 934 944) no Hoare annotation was computed. [2020-07-20 16:26:32,817 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 934 944) no Hoare annotation was computed. [2020-07-20 16:26:32,817 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 692 702) the Hoare annotation is: true [2020-07-20 16:26:32,818 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 692 702) no Hoare annotation was computed. [2020-07-20 16:26:32,818 INFO L271 CegarLoopResult]: At program point L697(line 697) the Hoare annotation is: true [2020-07-20 16:26:32,818 INFO L268 CegarLoopResult]: For program point L697-1(line 697) no Hoare annotation was computed. [2020-07-20 16:26:32,818 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 692 702) no Hoare annotation was computed. [2020-07-20 16:26:32,818 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 684 691) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) [2020-07-20 16:26:32,818 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 684 691) no Hoare annotation was computed. [2020-07-20 16:26:32,818 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 684 691) no Hoare annotation was computed. [2020-07-20 16:26:32,819 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 126 139) no Hoare annotation was computed. [2020-07-20 16:26:32,819 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 126 139) the Hoare annotation is: true [2020-07-20 16:26:32,819 INFO L268 CegarLoopResult]: For program point L130(lines 130 136) no Hoare annotation was computed. [2020-07-20 16:26:32,819 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 126 139) no Hoare annotation was computed. [2020-07-20 16:26:32,819 INFO L264 CegarLoopResult]: At program point L640(line 640) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 16:26:32,819 INFO L268 CegarLoopResult]: For program point L640-1(line 640) no Hoare annotation was computed. [2020-07-20 16:26:32,819 INFO L268 CegarLoopResult]: For program point L638(lines 638 655) no Hoare annotation was computed. [2020-07-20 16:26:32,819 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 634 658) no Hoare annotation was computed. [2020-07-20 16:26:32,820 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 634 658) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 16:26:32,820 INFO L264 CegarLoopResult]: At program point L653(line 653) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-20 16:26:32,820 INFO L268 CegarLoopResult]: For program point L653-1(lines 634 658) no Hoare annotation was computed. [2020-07-20 16:26:32,820 INFO L264 CegarLoopResult]: At program point L648(line 648) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 16:26:32,821 INFO L264 CegarLoopResult]: At program point L644(line 644) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|)) (not (<= |old(~pumpRunning~0)| ~switchedOnBeforeTS~0)) (not (<= ~waterLevel~0 1))) (or .cse0 (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-20 16:26:32,821 INFO L268 CegarLoopResult]: For program point L642(lines 642 650) no Hoare annotation was computed. [2020-07-20 16:26:32,821 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 600 606) no Hoare annotation was computed. [2020-07-20 16:26:32,822 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 600 606) the Hoare annotation is: true [2020-07-20 16:26:32,822 INFO L264 CegarLoopResult]: At program point L801(line 801) the Hoare annotation is: (let ((.cse2 (<= 1 ~pumpRunning~0)) (.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2020-07-20 16:26:32,822 INFO L264 CegarLoopResult]: At program point testENTRY(lines 769 832) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= 0 ~pumpRunning~0))) [2020-07-20 16:26:32,822 INFO L268 CegarLoopResult]: For program point L799(lines 799 805) no Hoare annotation was computed. [2020-07-20 16:26:32,822 INFO L268 CegarLoopResult]: For program point L799-1(lines 799 805) no Hoare annotation was computed. [2020-07-20 16:26:32,822 INFO L264 CegarLoopResult]: At program point L791(line 791) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2020-07-20 16:26:32,823 INFO L268 CegarLoopResult]: For program point testFINAL(lines 769 832) no Hoare annotation was computed. [2020-07-20 16:26:32,823 INFO L264 CegarLoopResult]: At program point L822(lines 779 824) the Hoare annotation is: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~pumpRunning~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) (<= ~waterLevel~0 1) .cse1 .cse2))) [2020-07-20 16:26:32,823 INFO L268 CegarLoopResult]: For program point L789(lines 789 795) no Hoare annotation was computed. [2020-07-20 16:26:32,823 INFO L268 CegarLoopResult]: For program point L789-1(lines 789 795) no Hoare annotation was computed. [2020-07-20 16:26:32,823 INFO L268 CegarLoopResult]: For program point L781(lines 781 785) no Hoare annotation was computed. [2020-07-20 16:26:32,823 INFO L264 CegarLoopResult]: At program point L825(lines 778 826) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 ~systemActive~0))) [2020-07-20 16:26:32,823 INFO L268 CegarLoopResult]: For program point L815(lines 815 819) no Hoare annotation was computed. [2020-07-20 16:26:32,824 INFO L264 CegarLoopResult]: At program point L815-2(lines 809 820) the Hoare annotation is: (let ((.cse2 (<= 1 ~pumpRunning~0)) (.cse0 (<= ~waterLevel~0 2)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (not (<= |old(~waterLevel~0)| 1)) (not (<= 1 ~systemActive~0)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse0 .cse1 .cse2) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) .cse1))) [2020-07-20 16:26:32,824 INFO L268 CegarLoopResult]: For program point L780(lines 779 824) no Hoare annotation was computed. [2020-07-20 16:26:32,824 INFO L268 CegarLoopResult]: For program point L809(lines 809 820) no Hoare annotation was computed. [2020-07-20 16:26:32,824 INFO L268 CegarLoopResult]: For program point testEXIT(lines 769 832) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point L443(lines 443 450) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 423 468) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point L437(lines 437 457) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 423 468) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point L437-1(lines 437 457) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 423 468) no Hoare annotation was computed. [2020-07-20 16:26:32,825 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__highWaterSensorENTRY(lines 659 666) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:26:32,825 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__highWaterSensorEXIT(lines 659 666) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__highWaterSensorFINAL(lines 659 666) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 94 116) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point L102(lines 102 110) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 94 116) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 94 116) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point L102-2(lines 102 110) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 320 422) no Hoare annotation was computed. [2020-07-20 16:26:32,826 INFO L268 CegarLoopResult]: For program point L349(lines 349 365) no Hoare annotation was computed. [2020-07-20 16:26:32,827 INFO L268 CegarLoopResult]: For program point L409(lines 409 416) no Hoare annotation was computed. [2020-07-20 16:26:32,827 INFO L268 CegarLoopResult]: For program point L370(lines 369 389) no Hoare annotation was computed. [2020-07-20 16:26:32,827 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 16:26:32,827 INFO L268 CegarLoopResult]: For program point L401-1(line 401) no Hoare annotation was computed. [2020-07-20 16:26:32,827 INFO L268 CegarLoopResult]: For program point L366(lines 366 407) no Hoare annotation was computed. [2020-07-20 16:26:32,827 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 320 422) no Hoare annotation was computed. [2020-07-20 16:26:32,828 INFO L268 CegarLoopResult]: For program point L385(line 385) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point L385-1(line 385) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point L344(lines 344 348) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point L408(lines 408 419) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point L371(lines 371 375) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 320 422) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point L369-2(lines 369 389) no Hoare annotation was computed. [2020-07-20 16:26:32,829 INFO L268 CegarLoopResult]: For program point L390(lines 368 391) no Hoare annotation was computed. [2020-07-20 16:26:32,830 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 838 847) no Hoare annotation was computed. [2020-07-20 16:26:32,830 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 838 847) no Hoare annotation was computed. [2020-07-20 16:26:32,830 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 838 847) no Hoare annotation was computed. [2020-07-20 16:26:32,830 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,830 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) [2020-07-20 16:26:32,830 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,830 INFO L264 CegarLoopResult]: At program point L672(line 672) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:26:32,831 INFO L268 CegarLoopResult]: For program point L672-1(line 672) no Hoare annotation was computed. [2020-07-20 16:26:32,831 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 667 683) no Hoare annotation was computed. [2020-07-20 16:26:32,831 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 667 683) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:26:32,831 INFO L264 CegarLoopResult]: At program point L678(line 678) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= ~waterLevel~0 2)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-20 16:26:32,831 INFO L268 CegarLoopResult]: For program point L678-1(lines 667 683) no Hoare annotation was computed. [2020-07-20 16:26:32,831 INFO L268 CegarLoopResult]: For program point L674(lines 674 680) no Hoare annotation was computed. [2020-07-20 16:26:32,831 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 117 125) the Hoare annotation is: true [2020-07-20 16:26:32,832 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 117 125) no Hoare annotation was computed. [2020-07-20 16:26:32,833 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 117 125) no Hoare annotation was computed. [2020-07-20 16:26:32,833 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 748 766) no Hoare annotation was computed. [2020-07-20 16:26:32,833 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 748 766) the Hoare annotation is: true [2020-07-20 16:26:32,833 INFO L268 CegarLoopResult]: For program point L757(lines 757 761) no Hoare annotation was computed. [2020-07-20 16:26:32,833 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 748 766) no Hoare annotation was computed. [2020-07-20 16:26:32,833 INFO L271 CegarLoopResult]: At program point L755(line 755) the Hoare annotation is: true [2020-07-20 16:26:32,833 INFO L268 CegarLoopResult]: For program point L757-2(lines 757 761) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L268 CegarLoopResult]: For program point L755-1(line 755) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L268 CegarLoopResult]: For program point L77-1(lines 73 84) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 73 84) the Hoare annotation is: true [2020-07-20 16:26:32,834 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 73 84) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,834 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 85 93) the Hoare annotation is: true [2020-07-20 16:26:32,835 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 85 93) no Hoare annotation was computed. [2020-07-20 16:26:32,835 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 85 93) no Hoare annotation was computed. [2020-07-20 16:26:32,835 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 573 599) the Hoare annotation is: (let ((.cse5 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse1 (<= 2 ~waterLevel~0)) (.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse2 .cse3 (and .cse5 (= 0 ~pumpRunning~0))) (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse5 .cse6) .cse0 .cse7 .cse3) (or .cse0 (and .cse1 .cse6 (<= ~waterLevel~0 2)) .cse7 .cse3 .cse4) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|)) .cse2 .cse3 (<= 1 ~switchedOnBeforeTS~0)))) [2020-07-20 16:26:32,836 INFO L264 CegarLoopResult]: At program point L589(line 589) the Hoare annotation is: (let ((.cse7 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse2 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~waterLevel~0 1))) (.cse3 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) .cse0 .cse1 .cse2 .cse3) (or .cse1 (<= 2 ~waterLevel~0) .cse4 .cse5 .cse6) (or .cse0 .cse1 .cse7 .cse4) (or .cse1 .cse2 .cse3 .cse5 .cse6) (or .cse1 .cse4 (and (<= ~waterLevel~0 2) (= 0 ~pumpRunning~0)) .cse5)))) [2020-07-20 16:26:32,837 INFO L264 CegarLoopResult]: At program point L587(lines 587 593) the Hoare annotation is: (let ((.cse7 (= 0 ~pumpRunning~0)) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse10 (<= ~waterLevel~0 1))) (let ((.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (<= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10)) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (and .cse6 .cse7 (<= 1 ~switchedOnBeforeTS~0) .cse10)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse9 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) .cse0 .cse1 .cse2 .cse3 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse5 (and .cse6 .cse7)) (let ((.cse8 (<= 2 ~waterLevel~0))) (or .cse0 (and .cse8 .cse6 .cse7) .cse5 .cse4 .cse9 (and .cse8 (<= ~waterLevel~0 2) (<= 1 ~pumpRunning~0)))) (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse9)))) [2020-07-20 16:26:32,837 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 573 599) no Hoare annotation was computed. [2020-07-20 16:26:32,837 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 573 599) no Hoare annotation was computed. [2020-07-20 16:26:32,837 INFO L264 CegarLoopResult]: At program point L582(line 582) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or (not (<= |old(~pumpRunning~0)| |old(~switchedOnBeforeTS~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse3) .cse4) (or .cse0 .cse4 .cse1 (and .cse2 (<= 2 ~waterLevel~0) .cse3 (<= ~waterLevel~0 2)) (not (<= 2 |old(~waterLevel~0)|))))) [2020-07-20 16:26:32,837 INFO L268 CegarLoopResult]: For program point L580(lines 576 598) no Hoare annotation was computed. [2020-07-20 16:26:32,837 INFO L268 CegarLoopResult]: For program point L578(lines 576 598) no Hoare annotation was computed. [2020-07-20 16:26:32,837 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 873 902) no Hoare annotation was computed. [2020-07-20 16:26:32,838 INFO L268 CegarLoopResult]: For program point L894(line 894) no Hoare annotation was computed. [2020-07-20 16:26:32,838 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 873 902) the Hoare annotation is: true [2020-07-20 16:26:32,838 INFO L268 CegarLoopResult]: For program point L887(lines 887 891) no Hoare annotation was computed. [2020-07-20 16:26:32,838 INFO L271 CegarLoopResult]: At program point L887-1(lines 887 891) the Hoare annotation is: true [2020-07-20 16:26:32,838 INFO L268 CegarLoopResult]: For program point L884(line 884) no Hoare annotation was computed. [2020-07-20 16:26:32,838 INFO L271 CegarLoopResult]: At program point L883-2(lines 883 897) the Hoare annotation is: true [2020-07-20 16:26:32,838 INFO L271 CegarLoopResult]: At program point L879(line 879) the Hoare annotation is: true [2020-07-20 16:26:32,838 INFO L268 CegarLoopResult]: For program point L879-1(line 879) no Hoare annotation was computed. [2020-07-20 16:26:32,839 INFO L271 CegarLoopResult]: At program point L898(lines 873 902) the Hoare annotation is: true [2020-07-20 16:26:32,839 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 49 60) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (.cse2 (not (<= 1 ~pumpRunning~0)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse1 .cse2) (or .cse0 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2)) (not (<= |old(~waterLevel~0)| 2)) .cse1 .cse2 (not (<= 2 |old(~waterLevel~0)|))))) [2020-07-20 16:26:32,839 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 49 60) no Hoare annotation was computed. [2020-07-20 16:26:32,839 INFO L268 CegarLoopResult]: For program point L53-1(lines 49 60) no Hoare annotation was computed. [2020-07-20 16:26:32,839 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 927 933) no Hoare annotation was computed. [2020-07-20 16:26:32,839 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 927 933) the Hoare annotation is: true [2020-07-20 16:26:32,839 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,840 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-20 16:26:32,840 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 16:26:32,840 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 16:26:32,840 INFO L268 CegarLoopResult]: For program point L65-1(lines 61 72) no Hoare annotation was computed. [2020-07-20 16:26:32,840 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 61 72) no Hoare annotation was computed. [2020-07-20 16:26:32,840 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 61 72) the Hoare annotation is: (let ((.cse1 (and (<= 2 ~waterLevel~0) (<= ~waterLevel~0 2))) (.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 1 ~pumpRunning~0))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 (not (<= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse7) (or .cse0 .cse1 .cse2 .cse7 .cse4) (or .cse5 .cse0 .cse6 .cse3))) [2020-07-20 16:26:32,840 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 141 148) no Hoare annotation was computed. [2020-07-20 16:26:32,841 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 145) no Hoare annotation was computed. [2020-07-20 16:26:32,841 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 141 148) the Hoare annotation is: true [2020-07-20 16:26:32,841 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 141 148) no Hoare annotation was computed. [2020-07-20 16:26:32,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 04:26:32 BoogieIcfgContainer [2020-07-20 16:26:32,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 16:26:32,873 INFO L168 Benchmark]: Toolchain (without parser) took 17237.77 ms. Allocated memory was 136.8 MB in the beginning and 407.4 MB in the end (delta: 270.5 MB). Free memory was 100.4 MB in the beginning and 329.5 MB in the end (delta: -229.0 MB). Peak memory consumption was 290.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:26:32,873 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 16:26:32,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 614.60 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 169.0 MB in the end (delta: -69.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-07-20 16:26:32,886 INFO L168 Benchmark]: Boogie Preprocessor took 111.37 ms. Allocated memory is still 201.3 MB. Free memory was 169.0 MB in the beginning and 164.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-07-20 16:26:32,889 INFO L168 Benchmark]: RCFGBuilder took 1177.27 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 163.7 MB in the beginning and 191.8 MB in the end (delta: -28.1 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-20 16:26:32,890 INFO L168 Benchmark]: TraceAbstraction took 15327.54 ms. Allocated memory was 231.2 MB in the beginning and 407.4 MB in the end (delta: 176.2 MB). Free memory was 191.8 MB in the beginning and 329.5 MB in the end (delta: -137.7 MB). Peak memory consumption was 287.1 MB. Max. memory is 7.1 GB. [2020-07-20 16:26:32,900 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 614.60 ms. Allocated memory was 136.8 MB in the beginning and 201.3 MB in the end (delta: 64.5 MB). Free memory was 100.0 MB in the beginning and 169.0 MB in the end (delta: -69.0 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.37 ms. Allocated memory is still 201.3 MB. Free memory was 169.0 MB in the beginning and 164.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1177.27 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 163.7 MB in the beginning and 191.8 MB in the end (delta: -28.1 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 15327.54 ms. Allocated memory was 231.2 MB in the beginning and 407.4 MB in the end (delta: 176.2 MB). Free memory was 191.8 MB in the beginning and 329.5 MB in the end (delta: -137.7 MB). Peak memory consumption was 287.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: 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: 778]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= systemActive) - InvariantResult [Line: 883]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 779]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || (((2 <= waterLevel && waterLevel <= 2) && splverifierCounter <= 0) && 1 <= pumpRunning)) || !(1 <= systemActive)) || !(0 == \old(pumpRunning))) || ((waterLevel <= 2 && 0 == pumpRunning) && splverifierCounter <= 0)) || (((pumpRunning <= switchedOnBeforeTS && waterLevel <= 1) && splverifierCounter <= 0) && 1 <= pumpRunning) - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 242 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1867 SDtfs, 1431 SDslu, 3100 SDs, 0 SdLazy, 1853 SolverSat, 628 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1137 GetRequests, 1075 SyntacticMatches, 6 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=480occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 189 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 64 LocationsWithAnnotation, 870 PreInvPairs, 944 NumberOfFragments, 1589 HoareAnnotationTreeSize, 870 FomulaSimplifications, 1330 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 64 FomulaSimplificationsInter, 7535 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 953 NumberOfCodeBlocks, 775 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1112 ConstructedInterpolants, 0 QuantifiedInterpolants, 245192 SizeOfPredicates, 23 NumberOfNonLiveVariables, 7109 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 105/127 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...