/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 12:53:24,388 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 12:53:24,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 12:53:24,402 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 12:53:24,403 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 12:53:24,404 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 12:53:24,405 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 12:53:24,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 12:53:24,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 12:53:24,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 12:53:24,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 12:53:24,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 12:53:24,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 12:53:24,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 12:53:24,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 12:53:24,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 12:53:24,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 12:53:24,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 12:53:24,418 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 12:53:24,421 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 12:53:24,422 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 12:53:24,423 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 12:53:24,425 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 12:53:24,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 12:53:24,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 12:53:24,429 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 12:53:24,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 12:53:24,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 12:53:24,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 12:53:24,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 12:53:24,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 12:53:24,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 12:53:24,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 12:53:24,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 12:53:24,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 12:53:24,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 12:53:24,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 12:53:24,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 12:53:24,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 12:53:24,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 12:53:24,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 12:53:24,439 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 12:53:24,453 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 12:53:24,454 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 12:53:24,455 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 12:53:24,455 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 12:53:24,455 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 12:53:24,456 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 12:53:24,456 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 12:53:24,456 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 12:53:24,456 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 12:53:24,456 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 12:53:24,457 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 12:53:24,457 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 12:53:24,457 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 12:53:24,457 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 12:53:24,457 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 12:53:24,458 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 12:53:24,458 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 12:53:24,458 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 12:53:24,458 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 12:53:24,458 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 12:53:24,459 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 12:53:24,459 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:53:24,459 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 12:53:24,459 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 12:53:24,460 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 12:53:24,460 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 12:53:24,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:24,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 12:53:24,460 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 12:53:24,461 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 12:53:24,770 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 12:53:24,784 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 12:53:24,788 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 12:53:24,789 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 12:53:24,792 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 12:53:24,793 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-07-21 12:53:24,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dcf5364/0aa22fba6689423bb672e414cd657e21/FLAG5628ccf51 [2020-07-21 12:53:25,404 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 12:53:25,404 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product62.cil.c [2020-07-21 12:53:25,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dcf5364/0aa22fba6689423bb672e414cd657e21/FLAG5628ccf51 [2020-07-21 12:53:25,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/76dcf5364/0aa22fba6689423bb672e414cd657e21 [2020-07-21 12:53:25,801 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 12:53:25,804 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 12:53:25,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:25,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 12:53:25,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 12:53:25,810 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:25" (1/1) ... [2020-07-21 12:53:25,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19ad6da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:25, skipping insertion in model container [2020-07-21 12:53:25,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:53:25" (1/1) ... [2020-07-21 12:53:25,821 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 12:53:25,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 12:53:26,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:26,341 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 12:53:26,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 12:53:26,488 INFO L208 MainTranslator]: Completed translation [2020-07-21 12:53:26,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26 WrapperNode [2020-07-21 12:53:26,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 12:53:26,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 12:53:26,490 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 12:53:26,490 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 12:53:26,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,575 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... [2020-07-21 12:53:26,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 12:53:26,587 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 12:53:26,587 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 12:53:26,587 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 12:53:26,588 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 12:53:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 12:53:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 12:53:26,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 12:53:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 12:53:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 12:53:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 12:53:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:26,653 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 12:53:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 12:53:26,654 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:53:26,655 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 12:53:26,655 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 12:53:26,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 12:53:26,655 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 12:53:26,656 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 12:53:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 12:53:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 12:53:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 12:53:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 12:53:26,657 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 12:53:26,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 12:53:26,658 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 12:53:26,658 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 12:53:26,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 12:53:26,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 12:53:26,659 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 12:53:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 12:53:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:26,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 12:53:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 12:53:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 12:53:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 12:53:26,662 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 12:53:26,663 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 12:53:26,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 12:53:26,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 12:53:26,663 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 12:53:26,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 12:53:26,664 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 12:53:26,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 12:53:26,664 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 12:53:26,664 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 12:53:26,665 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 12:53:26,666 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 12:53:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 12:53:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 12:53:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 12:53:26,667 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 12:53:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 12:53:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 12:53:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 12:53:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 12:53:26,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-21 12:53:26,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 12:53:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-07-21 12:53:26,670 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 12:53:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 12:53:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 12:53:26,671 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 12:53:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 12:53:26,672 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 12:53:26,673 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 12:53:26,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 12:53:26,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 12:53:27,833 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 12:53:27,834 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 12:53:27,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:27 BoogieIcfgContainer [2020-07-21 12:53:27,844 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 12:53:27,845 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 12:53:27,846 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 12:53:27,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 12:53:27,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:53:25" (1/3) ... [2020-07-21 12:53:27,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167a24d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:27, skipping insertion in model container [2020-07-21 12:53:27,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:53:26" (2/3) ... [2020-07-21 12:53:27,851 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@167a24d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:53:27, skipping insertion in model container [2020-07-21 12:53:27,852 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:53:27" (3/3) ... [2020-07-21 12:53:27,854 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2020-07-21 12:53:27,865 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 12:53:27,877 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 12:53:27,891 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 12:53:27,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 12:53:27,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 12:53:27,913 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 12:53:27,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 12:53:27,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 12:53:27,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 12:53:27,914 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 12:53:27,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 12:53:27,939 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states. [2020-07-21 12:53:27,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 12:53:27,954 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:27,956 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:27,956 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:27,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:27,962 INFO L82 PathProgramCache]: Analyzing trace with hash 182694304, now seen corresponding path program 1 times [2020-07-21 12:53:27,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:27,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823480569] [2020-07-21 12:53:27,973 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,361 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:28,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:28,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 12:53:28,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:28,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:28,413 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:28,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823480569] [2020-07-21 12:53:28,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:28,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 12:53:28,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947984177] [2020-07-21 12:53:28,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 12:53:28,422 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:28,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 12:53:28,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:28,443 INFO L87 Difference]: Start difference. First operand 200 states. Second operand 2 states. [2020-07-21 12:53:28,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:28,518 INFO L93 Difference]: Finished difference Result 314 states and 387 transitions. [2020-07-21 12:53:28,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 12:53:28,521 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 12:53:28,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:28,547 INFO L225 Difference]: With dead ends: 314 [2020-07-21 12:53:28,547 INFO L226 Difference]: Without dead ends: 157 [2020-07-21 12:53:28,555 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 12:53:28,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-21 12:53:28,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2020-07-21 12:53:28,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-07-21 12:53:28,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 185 transitions. [2020-07-21 12:53:28,630 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 185 transitions. Word has length 46 [2020-07-21 12:53:28,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:28,630 INFO L479 AbstractCegarLoop]: Abstraction has 157 states and 185 transitions. [2020-07-21 12:53:28,631 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 12:53:28,631 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 185 transitions. [2020-07-21 12:53:28,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 12:53:28,635 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:28,635 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:28,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:28,849 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:28,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:28,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1720628684, now seen corresponding path program 1 times [2020-07-21 12:53:28,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:28,852 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1664994143] [2020-07-21 12:53:28,852 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,178 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,178 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:29,229 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1664994143] [2020-07-21 12:53:29,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,230 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:29,230 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494142415] [2020-07-21 12:53:29,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:29,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:29,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,235 INFO L87 Difference]: Start difference. First operand 157 states and 185 transitions. Second operand 3 states. [2020-07-21 12:53:29,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,277 INFO L93 Difference]: Finished difference Result 259 states and 305 transitions. [2020-07-21 12:53:29,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:29,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 12:53:29,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,281 INFO L225 Difference]: With dead ends: 259 [2020-07-21 12:53:29,281 INFO L226 Difference]: Without dead ends: 148 [2020-07-21 12:53:29,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-21 12:53:29,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-07-21 12:53:29,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-07-21 12:53:29,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 173 transitions. [2020-07-21 12:53:29,314 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 173 transitions. Word has length 47 [2020-07-21 12:53:29,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:29,315 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 173 transitions. [2020-07-21 12:53:29,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:29,315 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 173 transitions. [2020-07-21 12:53:29,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 12:53:29,321 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:29,322 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:29,537 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,538 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:29,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:29,538 INFO L82 PathProgramCache]: Analyzing trace with hash 1588538268, now seen corresponding path program 1 times [2020-07-21 12:53:29,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:29,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1029605498] [2020-07-21 12:53:29,539 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:29,808 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:29,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:29,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 12:53:29,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:29,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:29,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:29,838 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1029605498] [2020-07-21 12:53:29,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:29,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 12:53:29,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230095254] [2020-07-21 12:53:29,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 12:53:29,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:29,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 12:53:29,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,840 INFO L87 Difference]: Start difference. First operand 148 states and 173 transitions. Second operand 3 states. [2020-07-21 12:53:29,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:29,858 INFO L93 Difference]: Finished difference Result 272 states and 323 transitions. [2020-07-21 12:53:29,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 12:53:29,858 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 12:53:29,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:29,860 INFO L225 Difference]: With dead ends: 272 [2020-07-21 12:53:29,861 INFO L226 Difference]: Without dead ends: 148 [2020-07-21 12:53:29,862 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 12:53:29,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-07-21 12:53:29,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-07-21 12:53:29,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-07-21 12:53:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 172 transitions. [2020-07-21 12:53:29,876 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 172 transitions. Word has length 52 [2020-07-21 12:53:29,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:29,877 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 172 transitions. [2020-07-21 12:53:29,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 12:53:29,877 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 172 transitions. [2020-07-21 12:53:29,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-21 12:53:29,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:29,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:30,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,096 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:30,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:30,097 INFO L82 PathProgramCache]: Analyzing trace with hash 265767055, now seen corresponding path program 1 times [2020-07-21 12:53:30,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:30,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1757131339] [2020-07-21 12:53:30,098 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:30,440 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:30,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:30,445 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 12:53:30,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:30,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:30,529 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:30,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1757131339] [2020-07-21 12:53:30,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:30,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:30,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669808074] [2020-07-21 12:53:30,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:30,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:30,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:30,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:30,539 INFO L87 Difference]: Start difference. First operand 148 states and 172 transitions. Second operand 6 states. [2020-07-21 12:53:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:30,842 INFO L93 Difference]: Finished difference Result 385 states and 472 transitions. [2020-07-21 12:53:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:30,842 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2020-07-21 12:53:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:30,847 INFO L225 Difference]: With dead ends: 385 [2020-07-21 12:53:30,847 INFO L226 Difference]: Without dead ends: 261 [2020-07-21 12:53:30,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:30,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2020-07-21 12:53:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2020-07-21 12:53:30,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 261 states. [2020-07-21 12:53:30,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 318 transitions. [2020-07-21 12:53:30,878 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 318 transitions. Word has length 70 [2020-07-21 12:53:30,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:30,879 INFO L479 AbstractCegarLoop]: Abstraction has 261 states and 318 transitions. [2020-07-21 12:53:30,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 318 transitions. [2020-07-21 12:53:30,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-21 12:53:30,882 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:30,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:31,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,097 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:31,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:31,098 INFO L82 PathProgramCache]: Analyzing trace with hash 332820213, now seen corresponding path program 1 times [2020-07-21 12:53:31,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:31,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308854072] [2020-07-21 12:53:31,100 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:31,445 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:31,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:31,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 705 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 12:53:31,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:31,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:31,489 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:31,490 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308854072] [2020-07-21 12:53:31,490 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:31,490 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:31,490 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163186173] [2020-07-21 12:53:31,491 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:31,491 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:31,491 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:31,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:31,492 INFO L87 Difference]: Start difference. First operand 261 states and 318 transitions. Second operand 6 states. [2020-07-21 12:53:32,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:32,068 INFO L93 Difference]: Finished difference Result 616 states and 775 transitions. [2020-07-21 12:53:32,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:32,069 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 74 [2020-07-21 12:53:32,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:32,075 INFO L225 Difference]: With dead ends: 616 [2020-07-21 12:53:32,075 INFO L226 Difference]: Without dead ends: 379 [2020-07-21 12:53:32,077 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2020-07-21 12:53:32,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 363. [2020-07-21 12:53:32,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 363 states. [2020-07-21 12:53:32,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 420 transitions. [2020-07-21 12:53:32,107 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 420 transitions. Word has length 74 [2020-07-21 12:53:32,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:32,107 INFO L479 AbstractCegarLoop]: Abstraction has 363 states and 420 transitions. [2020-07-21 12:53:32,107 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:32,108 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 420 transitions. [2020-07-21 12:53:32,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 12:53:32,109 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:32,110 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:32,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,325 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:32,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:32,325 INFO L82 PathProgramCache]: Analyzing trace with hash 2008036261, now seen corresponding path program 1 times [2020-07-21 12:53:32,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:32,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [401546327] [2020-07-21 12:53:32,327 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:32,630 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:32,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:32,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 12:53:32,639 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:32,753 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 12:53:32,753 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:32,753 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [401546327] [2020-07-21 12:53:32,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:32,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:53:32,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362895632] [2020-07-21 12:53:32,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:53:32,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:32,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:53:32,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:32,756 INFO L87 Difference]: Start difference. First operand 363 states and 420 transitions. Second operand 8 states. [2020-07-21 12:53:33,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:33,402 INFO L93 Difference]: Finished difference Result 1040 states and 1221 transitions. [2020-07-21 12:53:33,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:53:33,402 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 148 [2020-07-21 12:53:33,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:33,413 INFO L225 Difference]: With dead ends: 1040 [2020-07-21 12:53:33,413 INFO L226 Difference]: Without dead ends: 701 [2020-07-21 12:53:33,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:33,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 701 states. [2020-07-21 12:53:33,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 701 to 698. [2020-07-21 12:53:33,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-07-21 12:53:33,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 811 transitions. [2020-07-21 12:53:33,499 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 811 transitions. Word has length 148 [2020-07-21 12:53:33,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:33,500 INFO L479 AbstractCegarLoop]: Abstraction has 698 states and 811 transitions. [2020-07-21 12:53:33,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:53:33,500 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 811 transitions. [2020-07-21 12:53:33,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:53:33,508 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:33,508 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:33,716 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:33,717 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:33,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:33,717 INFO L82 PathProgramCache]: Analyzing trace with hash 631180417, now seen corresponding path program 1 times [2020-07-21 12:53:33,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:33,718 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413768761] [2020-07-21 12:53:33,719 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,011 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:34,011 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:34,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:53:34,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:34,107 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 12:53:34,107 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:34,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413768761] [2020-07-21 12:53:34,108 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:34,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:53:34,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395808840] [2020-07-21 12:53:34,109 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:53:34,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:34,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:53:34,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:34,110 INFO L87 Difference]: Start difference. First operand 698 states and 811 transitions. Second operand 8 states. [2020-07-21 12:53:34,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:34,496 INFO L93 Difference]: Finished difference Result 1330 states and 1561 transitions. [2020-07-21 12:53:34,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:53:34,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-07-21 12:53:34,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:34,501 INFO L225 Difference]: With dead ends: 1330 [2020-07-21 12:53:34,501 INFO L226 Difference]: Without dead ends: 656 [2020-07-21 12:53:34,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 144 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:34,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 656 states. [2020-07-21 12:53:34,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 656 to 653. [2020-07-21 12:53:34,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 653 states. [2020-07-21 12:53:34,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 653 states to 653 states and 748 transitions. [2020-07-21 12:53:34,543 INFO L78 Accepts]: Start accepts. Automaton has 653 states and 748 transitions. Word has length 152 [2020-07-21 12:53:34,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:34,543 INFO L479 AbstractCegarLoop]: Abstraction has 653 states and 748 transitions. [2020-07-21 12:53:34,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:53:34,544 INFO L276 IsEmpty]: Start isEmpty. Operand 653 states and 748 transitions. [2020-07-21 12:53:34,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:53:34,546 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:34,546 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:34,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:34,762 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:34,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:34,762 INFO L82 PathProgramCache]: Analyzing trace with hash 224504705, now seen corresponding path program 2 times [2020-07-21 12:53:34,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:34,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1500893171] [2020-07-21 12:53:34,763 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:35,014 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:35,014 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:35,018 INFO L263 TraceCheckSpWp]: Trace formula consists of 898 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:35,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:35,122 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 12:53:35,122 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:35,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1500893171] [2020-07-21 12:53:35,122 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:35,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:35,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190118218] [2020-07-21 12:53:35,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:35,123 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:35,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:35,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:35,124 INFO L87 Difference]: Start difference. First operand 653 states and 748 transitions. Second operand 6 states. [2020-07-21 12:53:35,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:35,192 INFO L93 Difference]: Finished difference Result 1310 states and 1544 transitions. [2020-07-21 12:53:35,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:35,193 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2020-07-21 12:53:35,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:35,198 INFO L225 Difference]: With dead ends: 1310 [2020-07-21 12:53:35,198 INFO L226 Difference]: Without dead ends: 681 [2020-07-21 12:53:35,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:35,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-07-21 12:53:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 673. [2020-07-21 12:53:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-07-21 12:53:35,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 770 transitions. [2020-07-21 12:53:35,245 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 770 transitions. Word has length 152 [2020-07-21 12:53:35,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:35,246 INFO L479 AbstractCegarLoop]: Abstraction has 673 states and 770 transitions. [2020-07-21 12:53:35,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:35,247 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 770 transitions. [2020-07-21 12:53:35,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:53:35,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:35,251 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:35,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:35,466 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:35,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:35,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1255545603, now seen corresponding path program 1 times [2020-07-21 12:53:35,467 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:35,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [619961308] [2020-07-21 12:53:35,468 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:35,731 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:35,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:35,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 12:53:35,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:35,779 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 12:53:35,779 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:35,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [619961308] [2020-07-21 12:53:35,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:35,780 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 12:53:35,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643253721] [2020-07-21 12:53:35,781 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 12:53:35,781 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:35,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 12:53:35,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:35,782 INFO L87 Difference]: Start difference. First operand 673 states and 770 transitions. Second operand 5 states. [2020-07-21 12:53:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:35,826 INFO L93 Difference]: Finished difference Result 1281 states and 1501 transitions. [2020-07-21 12:53:35,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 12:53:35,827 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 152 [2020-07-21 12:53:35,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:35,834 INFO L225 Difference]: With dead ends: 1281 [2020-07-21 12:53:35,834 INFO L226 Difference]: Without dead ends: 632 [2020-07-21 12:53:35,837 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 12:53:35,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-07-21 12:53:35,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 632. [2020-07-21 12:53:35,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 632 states. [2020-07-21 12:53:35,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 632 states to 632 states and 723 transitions. [2020-07-21 12:53:35,875 INFO L78 Accepts]: Start accepts. Automaton has 632 states and 723 transitions. Word has length 152 [2020-07-21 12:53:35,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:35,876 INFO L479 AbstractCegarLoop]: Abstraction has 632 states and 723 transitions. [2020-07-21 12:53:35,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 12:53:35,876 INFO L276 IsEmpty]: Start isEmpty. Operand 632 states and 723 transitions. [2020-07-21 12:53:35,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-21 12:53:35,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:35,881 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:36,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:36,095 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:36,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:36,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1908635068, now seen corresponding path program 1 times [2020-07-21 12:53:36,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:36,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [245823656] [2020-07-21 12:53:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:36,307 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 12:53:36,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:36,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 12:53:36,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:36,378 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:36,378 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:36,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [245823656] [2020-07-21 12:53:36,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:36,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:36,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335961447] [2020-07-21 12:53:36,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:36,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:36,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:36,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:36,381 INFO L87 Difference]: Start difference. First operand 632 states and 723 transitions. Second operand 6 states. [2020-07-21 12:53:37,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:37,295 INFO L93 Difference]: Finished difference Result 1748 states and 2117 transitions. [2020-07-21 12:53:37,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 12:53:37,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 152 [2020-07-21 12:53:37,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:37,307 INFO L225 Difference]: With dead ends: 1748 [2020-07-21 12:53:37,307 INFO L226 Difference]: Without dead ends: 1140 [2020-07-21 12:53:37,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:37,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1140 states. [2020-07-21 12:53:37,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1140 to 1111. [2020-07-21 12:53:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1111 states. [2020-07-21 12:53:37,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1111 states to 1111 states and 1297 transitions. [2020-07-21 12:53:37,400 INFO L78 Accepts]: Start accepts. Automaton has 1111 states and 1297 transitions. Word has length 152 [2020-07-21 12:53:37,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:37,401 INFO L479 AbstractCegarLoop]: Abstraction has 1111 states and 1297 transitions. [2020-07-21 12:53:37,401 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:37,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1111 states and 1297 transitions. [2020-07-21 12:53:37,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 12:53:37,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:37,406 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:37,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:37,620 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:37,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:37,620 INFO L82 PathProgramCache]: Analyzing trace with hash -620136546, now seen corresponding path program 1 times [2020-07-21 12:53:37,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:37,621 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1860494066] [2020-07-21 12:53:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:37,884 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:37,885 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:37,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 12:53:37,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:37,971 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 12:53:37,971 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:38,422 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-21 12:53:38,422 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1860494066] [2020-07-21 12:53:38,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:38,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 12:53:38,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918449329] [2020-07-21 12:53:38,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 12:53:38,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:38,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 12:53:38,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 12:53:38,425 INFO L87 Difference]: Start difference. First operand 1111 states and 1297 transitions. Second operand 12 states. [2020-07-21 12:53:40,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:40,231 INFO L93 Difference]: Finished difference Result 2926 states and 3642 transitions. [2020-07-21 12:53:40,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 12:53:40,231 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 156 [2020-07-21 12:53:40,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:40,246 INFO L225 Difference]: With dead ends: 2926 [2020-07-21 12:53:40,247 INFO L226 Difference]: Without dead ends: 1839 [2020-07-21 12:53:40,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 300 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 12:53:40,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1839 states. [2020-07-21 12:53:40,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1839 to 1484. [2020-07-21 12:53:40,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1484 states. [2020-07-21 12:53:40,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1712 transitions. [2020-07-21 12:53:40,396 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1712 transitions. Word has length 156 [2020-07-21 12:53:40,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:40,399 INFO L479 AbstractCegarLoop]: Abstraction has 1484 states and 1712 transitions. [2020-07-21 12:53:40,399 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 12:53:40,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1712 transitions. [2020-07-21 12:53:40,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-21 12:53:40,407 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:40,409 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:40,624 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:40,625 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:40,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:40,626 INFO L82 PathProgramCache]: Analyzing trace with hash -549720347, now seen corresponding path program 1 times [2020-07-21 12:53:40,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:40,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144899745] [2020-07-21 12:53:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:41,048 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:41,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:41,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 12:53:41,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:41,138 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 12:53:41,138 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:41,138 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144899745] [2020-07-21 12:53:41,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:41,139 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-21 12:53:41,139 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613185669] [2020-07-21 12:53:41,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 12:53:41,140 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:41,140 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 12:53:41,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:41,140 INFO L87 Difference]: Start difference. First operand 1484 states and 1712 transitions. Second operand 8 states. [2020-07-21 12:53:41,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:41,613 INFO L93 Difference]: Finished difference Result 2619 states and 3058 transitions. [2020-07-21 12:53:41,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 12:53:41,614 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 226 [2020-07-21 12:53:41,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:41,622 INFO L225 Difference]: With dead ends: 2619 [2020-07-21 12:53:41,622 INFO L226 Difference]: Without dead ends: 1295 [2020-07-21 12:53:41,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 218 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 12:53:41,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1295 states. [2020-07-21 12:53:41,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1295 to 1292. [2020-07-21 12:53:41,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1292 states. [2020-07-21 12:53:41,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1292 states to 1292 states and 1489 transitions. [2020-07-21 12:53:41,717 INFO L78 Accepts]: Start accepts. Automaton has 1292 states and 1489 transitions. Word has length 226 [2020-07-21 12:53:41,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:41,718 INFO L479 AbstractCegarLoop]: Abstraction has 1292 states and 1489 transitions. [2020-07-21 12:53:41,718 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 12:53:41,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1292 states and 1489 transitions. [2020-07-21 12:53:41,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-21 12:53:41,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:41,728 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:41,941 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:41,942 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:41,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:41,942 INFO L82 PathProgramCache]: Analyzing trace with hash 933152869, now seen corresponding path program 2 times [2020-07-21 12:53:41,942 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:41,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [776842799] [2020-07-21 12:53:41,943 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:42,214 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:42,214 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:42,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 12:53:42,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:42,313 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:42,314 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 12:53:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 88 proven. 26 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 12:53:42,422 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 12:53:42,728 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:42,863 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:42,864 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:42,915 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:42,916 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:42,934 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 12:53:42,935 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:42,986 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 12:53:43,273 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 50 proven. 16 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-21 12:53:43,274 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [776842799] [2020-07-21 12:53:43,274 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 12:53:43,274 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-21 12:53:43,275 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738990835] [2020-07-21 12:53:43,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 12:53:43,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:43,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 12:53:43,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-21 12:53:43,277 INFO L87 Difference]: Start difference. First operand 1292 states and 1489 transitions. Second operand 16 states. [2020-07-21 12:53:45,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:45,998 INFO L93 Difference]: Finished difference Result 3533 states and 4393 transitions. [2020-07-21 12:53:45,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 12:53:45,999 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 226 [2020-07-21 12:53:46,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:46,034 INFO L225 Difference]: With dead ends: 3533 [2020-07-21 12:53:46,034 INFO L226 Difference]: Without dead ends: 2373 [2020-07-21 12:53:46,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 467 GetRequests, 441 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-07-21 12:53:46,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2373 states. [2020-07-21 12:53:46,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2373 to 1824. [2020-07-21 12:53:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1824 states. [2020-07-21 12:53:46,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1824 states to 1824 states and 2079 transitions. [2020-07-21 12:53:46,246 INFO L78 Accepts]: Start accepts. Automaton has 1824 states and 2079 transitions. Word has length 226 [2020-07-21 12:53:46,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:46,250 INFO L479 AbstractCegarLoop]: Abstraction has 1824 states and 2079 transitions. [2020-07-21 12:53:46,250 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 12:53:46,250 INFO L276 IsEmpty]: Start isEmpty. Operand 1824 states and 2079 transitions. [2020-07-21 12:53:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-07-21 12:53:46,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 12:53:46,258 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 12:53:46,472 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:46,473 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 12:53:46,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 12:53:46,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1025421917, now seen corresponding path program 1 times [2020-07-21 12:53:46,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 12:53:46,474 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1836017395] [2020-07-21 12:53:46,474 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:46,862 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 12:53:46,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 12:53:46,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 12:53:46,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 12:53:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-07-21 12:53:46,918 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 12:53:46,919 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1836017395] [2020-07-21 12:53:46,919 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 12:53:46,919 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 12:53:46,919 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441261392] [2020-07-21 12:53:46,920 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 12:53:46,920 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 12:53:46,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 12:53:46,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 12:53:46,921 INFO L87 Difference]: Start difference. First operand 1824 states and 2079 transitions. Second operand 6 states. [2020-07-21 12:53:46,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 12:53:46,981 INFO L93 Difference]: Finished difference Result 2405 states and 2737 transitions. [2020-07-21 12:53:46,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 12:53:46,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2020-07-21 12:53:46,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 12:53:46,982 INFO L225 Difference]: With dead ends: 2405 [2020-07-21 12:53:46,982 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 12:53:46,989 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 226 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 12:53:46,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 12:53:46,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 12:53:46,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 12:53:46,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 12:53:46,990 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 226 [2020-07-21 12:53:46,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 12:53:46,990 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 12:53:46,991 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 12:53:46,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 12:53:46,991 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 12:53:47,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 12:53:47,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 12:53:49,298 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 19 [2020-07-21 12:53:49,713 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 22 [2020-07-21 12:53:49,834 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 25 [2020-07-21 12:53:49,982 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 21 [2020-07-21 12:53:50,252 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 29 [2020-07-21 12:53:50,710 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 39 [2020-07-21 12:53:51,063 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 33 [2020-07-21 12:53:51,188 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 22 [2020-07-21 12:53:51,402 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 27 [2020-07-21 12:53:51,659 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 34 [2020-07-21 12:53:52,041 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 43 [2020-07-21 12:53:52,256 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 32 [2020-07-21 12:53:52,363 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34 [2020-07-21 12:53:52,540 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2020-07-21 12:53:52,693 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 21 [2020-07-21 12:53:52,857 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 22 [2020-07-21 12:53:53,082 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 26 [2020-07-21 12:53:53,219 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 23 [2020-07-21 12:53:53,487 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 34 [2020-07-21 12:53:53,599 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 25 [2020-07-21 12:53:53,887 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2020-07-21 12:53:54,086 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 22 [2020-07-21 12:53:54,263 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 34 [2020-07-21 12:53:54,713 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 24 [2020-07-21 12:53:55,176 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2020-07-21 12:53:55,222 INFO L268 CegarLoopResult]: For program point L639(lines 616 640) no Hoare annotation was computed. [2020-07-21 12:53:55,222 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 592 647) no Hoare annotation was computed. [2020-07-21 12:53:55,222 INFO L268 CegarLoopResult]: For program point L623(lines 623 627) no Hoare annotation was computed. [2020-07-21 12:53:55,222 INFO L268 CegarLoopResult]: For program point L623-1(lines 623 627) no Hoare annotation was computed. [2020-07-21 12:53:55,222 INFO L268 CegarLoopResult]: For program point L618(line 618) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point L617-2(lines 617 638) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 592 647) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 592 647) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point L674-2(lines 674 699) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point L700(lines 673 701) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 648 707) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point L693(line 693) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point L693-1(line 693) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 648 707) no Hoare annotation was computed. [2020-07-21 12:53:55,223 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 648 707) no Hoare annotation was computed. [2020-07-21 12:53:55,224 INFO L268 CegarLoopResult]: For program point L680(lines 680 684) no Hoare annotation was computed. [2020-07-21 12:53:55,224 INFO L268 CegarLoopResult]: For program point L680-1(lines 680 684) no Hoare annotation was computed. [2020-07-21 12:53:55,224 INFO L268 CegarLoopResult]: For program point L675(line 675) no Hoare annotation was computed. [2020-07-21 12:53:55,224 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 427 433) the Hoare annotation is: true [2020-07-21 12:53:55,224 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 427 433) no Hoare annotation was computed. [2020-07-21 12:53:55,224 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 434 442) no Hoare annotation was computed. [2020-07-21 12:53:55,225 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 434 442) the Hoare annotation is: true [2020-07-21 12:53:55,225 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 434 442) no Hoare annotation was computed. [2020-07-21 12:53:55,225 INFO L268 CegarLoopResult]: For program point L386-1(line 386) no Hoare annotation was computed. [2020-07-21 12:53:55,225 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 380 404) the Hoare annotation is: true [2020-07-21 12:53:55,225 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 380 404) no Hoare annotation was computed. [2020-07-21 12:53:55,225 INFO L264 CegarLoopResult]: At program point L394(line 394) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse1 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse2))) [2020-07-21 12:53:55,225 INFO L268 CegarLoopResult]: For program point L392(lines 392 398) no Hoare annotation was computed. [2020-07-21 12:53:55,226 INFO L264 CegarLoopResult]: At program point L390(line 390) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2) (or .cse1 .cse3 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse2))) [2020-07-21 12:53:55,226 INFO L268 CegarLoopResult]: For program point L390-1(line 390) no Hoare annotation was computed. [2020-07-21 12:53:55,226 INFO L268 CegarLoopResult]: For program point L388(lines 388 401) no Hoare annotation was computed. [2020-07-21 12:53:55,226 INFO L268 CegarLoopResult]: For program point L388-1(lines 380 404) no Hoare annotation was computed. [2020-07-21 12:53:55,226 INFO L271 CegarLoopResult]: At program point L386(line 386) the Hoare annotation is: true [2020-07-21 12:53:55,226 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 516 538) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,226 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 516 538) no Hoare annotation was computed. [2020-07-21 12:53:55,227 INFO L264 CegarLoopResult]: At program point L528(line 528) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,227 INFO L264 CegarLoopResult]: At program point L528-1(line 528) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,227 INFO L268 CegarLoopResult]: For program point L526(lines 526 533) no Hoare annotation was computed. [2020-07-21 12:53:55,227 INFO L268 CegarLoopResult]: For program point L526-1(lines 526 533) no Hoare annotation was computed. [2020-07-21 12:53:55,227 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 516 538) no Hoare annotation was computed. [2020-07-21 12:53:55,227 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 12:53:55,227 INFO L264 CegarLoopResult]: At program point L523(line 523) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,227 INFO L264 CegarLoopResult]: At program point L522(line 522) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,227 INFO L264 CegarLoopResult]: At program point L522-1(line 522) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L480(line 480) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 475 498) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 475 498) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 475 498) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L492(line 492) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 12:53:55,228 INFO L268 CegarLoopResult]: For program point L489(line 489) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L483(line 483) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L264 CegarLoopResult]: At program point L211(line 211) the Hoare annotation is: (let ((.cse3 (= 0 ~pumpRunning~0)) (.cse4 (= 0 |old(~pumpRunning~0)|)) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not .cse4) .cse3) (or .cse4 .cse0 .cse1 .cse2))) [2020-07-21 12:53:55,229 INFO L268 CegarLoopResult]: For program point L211-1(lines 192 216) no Hoare annotation was computed. [2020-07-21 12:53:55,229 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 192 216) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 12:53:55,229 INFO L264 CegarLoopResult]: At program point L206(line 206) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:53:55,230 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 192 216) no Hoare annotation was computed. [2020-07-21 12:53:55,230 INFO L264 CegarLoopResult]: At program point L202(line 202) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment__wrappee__methaneQuery_~tmp~2)) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:53:55,230 INFO L268 CegarLoopResult]: For program point L200(lines 200 208) no Hoare annotation was computed. [2020-07-21 12:53:55,230 INFO L264 CegarLoopResult]: At program point L198(line 198) the Hoare annotation is: (let ((.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (or .cse0 .cse1 .cse3 .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:53:55,230 INFO L268 CegarLoopResult]: For program point L198-1(line 198) no Hoare annotation was computed. [2020-07-21 12:53:55,230 INFO L268 CegarLoopResult]: For program point L196(lines 196 213) no Hoare annotation was computed. [2020-07-21 12:53:55,230 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 287 295) no Hoare annotation was computed. [2020-07-21 12:53:55,230 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 287 295) the Hoare annotation is: true [2020-07-21 12:53:55,230 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 287 295) no Hoare annotation was computed. [2020-07-21 12:53:55,230 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 351 369) the Hoare annotation is: true [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point L360(lines 360 364) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L271 CegarLoopResult]: At program point L358(line 358) the Hoare annotation is: true [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point L360-2(lines 360 364) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 351 369) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point L358-1(line 358) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 351 369) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point L315(lines 315 323) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 323) no Hoare annotation was computed. [2020-07-21 12:53:55,231 INFO L268 CegarLoopResult]: For program point L303(lines 303 311) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 296 331) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point L303-2(lines 303 311) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 296 331) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point L326(line 326) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point L326-1(line 326) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 296 331) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 420 426) no Hoare annotation was computed. [2020-07-21 12:53:55,232 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 420 426) the Hoare annotation is: true [2020-07-21 12:53:55,232 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 546 591) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 546 591) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 546 591) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 859 904) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point L879(lines 879 886) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 859 904) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point L873(lines 873 893) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point L873-1(lines 873 893) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 859 904) no Hoare annotation was computed. [2020-07-21 12:53:55,233 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 506 515) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,234 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 506 515) no Hoare annotation was computed. [2020-07-21 12:53:55,234 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 506 515) no Hoare annotation was computed. [2020-07-21 12:53:55,234 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 276 286) the Hoare annotation is: true [2020-07-21 12:53:55,234 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 276 286) no Hoare annotation was computed. [2020-07-21 12:53:55,234 INFO L271 CegarLoopResult]: At program point L281(line 281) the Hoare annotation is: true [2020-07-21 12:53:55,234 INFO L268 CegarLoopResult]: For program point L281-1(line 281) no Hoare annotation was computed. [2020-07-21 12:53:55,234 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 276 286) no Hoare annotation was computed. [2020-07-21 12:53:55,234 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 268 275) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3) (or .cse0 .cse1 .cse2 .cse3 (not (= 0 ~methaneLevelCritical~0))))) [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 268 275) no Hoare annotation was computed. [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 268 275) no Hoare annotation was computed. [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point L989(lines 989 995) no Hoare annotation was computed. [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 985 998) no Hoare annotation was computed. [2020-07-21 12:53:55,235 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 985 998) the Hoare annotation is: true [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 985 998) no Hoare annotation was computed. [2020-07-21 12:53:55,235 INFO L264 CegarLoopResult]: At program point L224(line 224) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse4 (not (<= 1 ~methaneLevelCritical~0))) (.cse5 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse4 .cse2) (or .cse0 .cse1 .cse5 .cse3) (or .cse0 .cse1 .cse4 .cse5))) [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point L224-1(line 224) no Hoare annotation was computed. [2020-07-21 12:53:55,235 INFO L268 CegarLoopResult]: For program point L222(lines 222 239) no Hoare annotation was computed. [2020-07-21 12:53:55,236 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 218 242) no Hoare annotation was computed. [2020-07-21 12:53:55,236 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 218 242) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 12:53:55,236 INFO L264 CegarLoopResult]: At program point L237(line 237) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse2 .cse5 .cse4) (or .cse0 .cse1 .cse2 .cse5))) [2020-07-21 12:53:55,236 INFO L268 CegarLoopResult]: For program point L237-1(lines 218 242) no Hoare annotation was computed. [2020-07-21 12:53:55,236 INFO L264 CegarLoopResult]: At program point L232(line 232) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 (and (= ~methaneLevelCritical~0 processEnvironment_~tmp~3) (= ~pumpRunning~0 |old(~pumpRunning~0)|)) .cse2) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) .cse2))) [2020-07-21 12:53:55,236 INFO L264 CegarLoopResult]: At program point L228(line 228) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (<= 1 ~methaneLevelCritical~0)))) (and (or .cse0 .cse1 .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= ~methaneLevelCritical~0 processEnvironment_~tmp~3))) (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 .cse2 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 12:53:55,236 INFO L268 CegarLoopResult]: For program point L226(lines 226 234) no Hoare annotation was computed. [2020-07-21 12:53:55,237 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 158 164) no Hoare annotation was computed. [2020-07-21 12:53:55,237 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 158 164) the Hoare annotation is: true [2020-07-21 12:53:55,237 INFO L264 CegarLoopResult]: At program point testENTRY(lines 54 119) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,237 INFO L268 CegarLoopResult]: For program point testFINAL(lines 54 119) no Hoare annotation was computed. [2020-07-21 12:53:55,237 INFO L264 CegarLoopResult]: At program point L112(lines 63 113) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 12:53:55,237 INFO L268 CegarLoopResult]: For program point L102(lines 102 106) no Hoare annotation was computed. [2020-07-21 12:53:55,237 INFO L264 CegarLoopResult]: At program point L102-2(lines 94 107) the Hoare annotation is: (let ((.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse5 (<= 2 ~waterLevel~0)) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse6 .cse2 .cse3) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:55,238 INFO L268 CegarLoopResult]: For program point L65(lines 64 111) no Hoare annotation was computed. [2020-07-21 12:53:55,238 INFO L264 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (let ((.cse6 (<= 1 ~methaneLevelCritical~0)) (.cse1 (= 0 ~pumpRunning~0)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (= 0 ~methaneLevelCritical~0)) (.cse5 (<= 2 ~waterLevel~0)) (.cse2 (<= test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (not (= 0 |old(~pumpRunning~0)|)) (and .cse5 .cse6 .cse2 .cse3) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse6 .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse5 .cse2 .cse3) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:55,238 INFO L268 CegarLoopResult]: For program point L94(lines 94 107) no Hoare annotation was computed. [2020-07-21 12:53:55,238 INFO L264 CegarLoopResult]: At program point L86(line 86) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:55,238 INFO L268 CegarLoopResult]: For program point L84(lines 84 90) no Hoare annotation was computed. [2020-07-21 12:53:55,238 INFO L268 CegarLoopResult]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2020-07-21 12:53:55,238 INFO L264 CegarLoopResult]: At program point L109(lines 64 111) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:55,239 INFO L264 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse1 (<= test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse2 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and .cse3 (<= 2 ~waterLevel~0) .cse1 .cse2) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 12:53:55,239 INFO L268 CegarLoopResult]: For program point L74(lines 74 80) no Hoare annotation was computed. [2020-07-21 12:53:55,239 INFO L268 CegarLoopResult]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2020-07-21 12:53:55,239 INFO L268 CegarLoopResult]: For program point testEXIT(lines 54 119) no Hoare annotation was computed. [2020-07-21 12:53:55,239 INFO L268 CegarLoopResult]: For program point L66(lines 66 70) no Hoare annotation was computed. [2020-07-21 12:53:55,239 INFO L268 CegarLoopResult]: For program point L833(lines 833 840) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point L827(lines 827 847) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point L827-1(lines 827 847) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 813 858) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 813 858) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 813 858) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L264 CegarLoopResult]: At program point activatePump__wrappee__lowWaterSensorENTRY(lines 243 250) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorFINAL(lines 243 250) no Hoare annotation was computed. [2020-07-21 12:53:55,240 INFO L268 CegarLoopResult]: For program point activatePump__wrappee__lowWaterSensorEXIT(lines 243 250) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 999 1007) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 999 1007) the Hoare annotation is: true [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 999 1007) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point L961(lines 961 969) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point L961-2(lines 961 969) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 953 975) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 953 975) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 953 975) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 410 419) no Hoare annotation was computed. [2020-07-21 12:53:55,241 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 410 419) no Hoare annotation was computed. [2020-07-21 12:53:55,242 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 410 419) no Hoare annotation was computed. [2020-07-21 12:53:55,242 INFO L268 CegarLoopResult]: For program point L799(lines 799 806) no Hoare annotation was computed. [2020-07-21 12:53:55,242 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 710 812) no Hoare annotation was computed. [2020-07-21 12:53:55,242 INFO L268 CegarLoopResult]: For program point L760(lines 759 779) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L791(line 791) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L791-1(line 791) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L756(lines 756 797) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L775(line 775) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L775-1(line 775) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 710 812) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L734(lines 734 738) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L798(lines 798 809) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L761(lines 761 765) no Hoare annotation was computed. [2020-07-21 12:53:55,243 INFO L268 CegarLoopResult]: For program point L759-2(lines 759 779) no Hoare annotation was computed. [2020-07-21 12:53:55,244 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 710 812) no Hoare annotation was computed. [2020-07-21 12:53:55,244 INFO L268 CegarLoopResult]: For program point L780(lines 758 781) no Hoare annotation was computed. [2020-07-21 12:53:55,244 INFO L268 CegarLoopResult]: For program point L739(lines 739 755) no Hoare annotation was computed. [2020-07-21 12:53:55,244 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,244 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)|) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 12:53:55,244 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,245 INFO L264 CegarLoopResult]: At program point L256(line 256) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:53:55,245 INFO L268 CegarLoopResult]: For program point L256-1(line 256) no Hoare annotation was computed. [2020-07-21 12:53:55,245 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 251 267) no Hoare annotation was computed. [2020-07-21 12:53:55,246 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 251 267) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (= 0 ~pumpRunning~0)) (.cse3 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:53:55,246 INFO L264 CegarLoopResult]: At program point L262(line 262) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 ~waterLevel~0)))) (and (or .cse0 .cse1 (not (= 0 ~methaneLevelCritical~0)) (= 0 ~pumpRunning~0) .cse2) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2))) [2020-07-21 12:53:55,246 INFO L268 CegarLoopResult]: For program point L262-1(lines 251 267) no Hoare annotation was computed. [2020-07-21 12:53:55,246 INFO L268 CegarLoopResult]: For program point L258(lines 258 264) no Hoare annotation was computed. [2020-07-21 12:53:55,246 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 332 350) no Hoare annotation was computed. [2020-07-21 12:53:55,246 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 332 350) the Hoare annotation is: true [2020-07-21 12:53:55,246 INFO L268 CegarLoopResult]: For program point L341(lines 341 345) no Hoare annotation was computed. [2020-07-21 12:53:55,246 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 332 350) no Hoare annotation was computed. [2020-07-21 12:53:55,247 INFO L271 CegarLoopResult]: At program point L339(line 339) the Hoare annotation is: true [2020-07-21 12:53:55,247 INFO L268 CegarLoopResult]: For program point L341-2(lines 341 345) no Hoare annotation was computed. [2020-07-21 12:53:55,247 INFO L268 CegarLoopResult]: For program point L339-1(line 339) no Hoare annotation was computed. [2020-07-21 12:53:55,247 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 976 984) the Hoare annotation is: true [2020-07-21 12:53:55,247 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 976 984) no Hoare annotation was computed. [2020-07-21 12:53:55,247 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 976 984) no Hoare annotation was computed. [2020-07-21 12:53:55,247 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 932 943) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse3 (= 0 ~methaneLevelCritical~0)) (.cse4 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (not (= 0 ~pumpRunning~0)))) (and (or .cse0 .cse1 (<= 1 ~methaneLevelCritical~0) .cse2 (not (<= 1 |old(~methaneLevelCritical~0)|))) (or .cse1 .cse3 .cse4 (not (<= 2 ~waterLevel~0))) (or .cse0 .cse1 .cse3 .cse4 .cse2))) [2020-07-21 12:53:55,247 INFO L268 CegarLoopResult]: For program point L936-1(lines 932 943) no Hoare annotation was computed. [2020-07-21 12:53:55,247 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 932 943) no Hoare annotation was computed. [2020-07-21 12:53:55,248 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,248 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,248 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,248 INFO L264 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: (let ((.cse4 (= 0 ~pumpRunning~0)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (let ((.cse7 (not (= 0 ~methaneLevelCritical~0))) (.cse2 (and .cse10 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse9 (and .cse10 .cse4 .cse5)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse8 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse4 (<= ~waterLevel~0 1) .cse5) .cse6 .cse7 .cse8) (or .cse0 .cse9 .cse6 .cse7 .cse3) (or .cse0 .cse7 .cse2 .cse3) (or .cse0 .cse1 .cse9 .cse6 .cse8)))) [2020-07-21 12:53:55,248 INFO L264 CegarLoopResult]: At program point L145(lines 145 151) the Hoare annotation is: (let ((.cse0 (= 0 |old(~pumpRunning~0)|)) (.cse10 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse11 (= 0 ~pumpRunning~0))) (let ((.cse3 (and .cse9 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse11)) (.cse6 (and .cse11 (<= ~waterLevel~0 1) .cse10)) (.cse2 (not (= 0 ~methaneLevelCritical~0))) (.cse8 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse5 (not (<= 1 ~methaneLevelCritical~0))) (.cse7 (not .cse0)) (.cse4 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse3 .cse4) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse5 .cse6 .cse7 .cse8) (or .cse1 (and (<= 2 ~waterLevel~0) .cse9 .cse10) .cse6 .cse7 .cse2 .cse8) (or .cse1 .cse5 .cse7 .cse4 .cse10)))) [2020-07-21 12:53:55,248 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 134 157) the Hoare annotation is: (let ((.cse9 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (= 0 ~pumpRunning~0)) (.cse6 (not (= 0 |old(~pumpRunning~0)|))) (.cse7 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse8 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and .cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse4 (<= ~waterLevel~0 1) .cse5) .cse6 .cse1 .cse7) (or .cse0 .cse8 (and .cse9 .cse4 .cse5) .cse6 .cse7) (or .cse0 .cse8 .cse2 .cse3)))) [2020-07-21 12:53:55,249 INFO L264 CegarLoopResult]: At program point L140(line 140) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse4 (not (= 0 |old(~pumpRunning~0)|))) (.cse5 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (not (<= 1 ~methaneLevelCritical~0))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse5) (or .cse0 .cse6 .cse4 .cse5) (or .cse0 .cse6 .cse2 .cse3))) [2020-07-21 12:53:55,249 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 134 157) no Hoare annotation was computed. [2020-07-21 12:53:55,249 INFO L268 CegarLoopResult]: For program point L138(lines 137 156) no Hoare annotation was computed. [2020-07-21 12:53:55,249 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 134 157) no Hoare annotation was computed. [2020-07-21 12:53:55,249 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 445 474) no Hoare annotation was computed. [2020-07-21 12:53:55,249 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 445 474) the Hoare annotation is: true [2020-07-21 12:53:55,249 INFO L271 CegarLoopResult]: At program point L470(lines 445 474) the Hoare annotation is: true [2020-07-21 12:53:55,250 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 12:53:55,250 INFO L268 CegarLoopResult]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-07-21 12:53:55,250 INFO L271 CegarLoopResult]: At program point L459-1(lines 459 463) the Hoare annotation is: true [2020-07-21 12:53:55,250 INFO L268 CegarLoopResult]: For program point L456(line 456) no Hoare annotation was computed. [2020-07-21 12:53:55,250 INFO L271 CegarLoopResult]: At program point L455-2(lines 455 469) the Hoare annotation is: true [2020-07-21 12:53:55,250 INFO L271 CegarLoopResult]: At program point L451(line 451) the Hoare annotation is: true [2020-07-21 12:53:55,250 INFO L268 CegarLoopResult]: For program point L451-1(line 451) no Hoare annotation was computed. [2020-07-21 12:53:55,250 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 944 952) the Hoare annotation is: true [2020-07-21 12:53:55,250 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 944 952) no Hoare annotation was computed. [2020-07-21 12:53:55,251 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 944 952) no Hoare annotation was computed. [2020-07-21 12:53:55,251 INFO L268 CegarLoopResult]: For program point L912-1(lines 908 919) no Hoare annotation was computed. [2020-07-21 12:53:55,251 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 908 919) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3) (or .cse0 (not (= 0 ~methaneLevelCritical~0)) .cse1 .cse2 .cse3))) [2020-07-21 12:53:55,251 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 908 919) no Hoare annotation was computed. [2020-07-21 12:53:55,251 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 499 505) no Hoare annotation was computed. [2020-07-21 12:53:55,251 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 499 505) the Hoare annotation is: true [2020-07-21 12:53:55,251 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,251 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 12:53:55,251 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 12:53:55,252 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 12:53:55,252 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 370 377) no Hoare annotation was computed. [2020-07-21 12:53:55,252 INFO L264 CegarLoopResult]: At program point startSystemENTRY(lines 370 377) the Hoare annotation is: (let ((.cse1 (not (<= 1 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse6 (not (= 0 ~methaneLevelCritical~0))) (.cse5 (not (<= 2 ~waterLevel~0))) (.cse4 (<= 1 ~systemActive~0)) (.cse3 (not (<= 1 |old(~systemActive~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 .cse5 .cse3 .cse4) (or .cse0 .cse6 .cse2 .cse4 .cse3) (or .cse6 .cse5 .cse4 .cse3))) [2020-07-21 12:53:55,252 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 370 377) no Hoare annotation was computed. [2020-07-21 12:53:55,252 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 166 190) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:53:55,252 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 166 190) no Hoare annotation was computed. [2020-07-21 12:53:55,252 INFO L264 CegarLoopResult]: At program point L185(line 185) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2))) [2020-07-21 12:53:55,253 INFO L268 CegarLoopResult]: For program point L185-1(lines 166 190) no Hoare annotation was computed. [2020-07-21 12:53:55,253 INFO L264 CegarLoopResult]: At program point L180(line 180) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= 0 ~pumpRunning~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 .cse2 (not (<= 1 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:53:55,253 INFO L264 CegarLoopResult]: At program point L176(line 176) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (= 0 ~methaneLevelCritical~0))) (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3))) [2020-07-21 12:53:55,253 INFO L268 CegarLoopResult]: For program point L174(lines 174 182) no Hoare annotation was computed. [2020-07-21 12:53:55,253 INFO L264 CegarLoopResult]: At program point L172(line 172) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (= 0 ~pumpRunning~0))) (and (or .cse0 .cse1 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3) (or .cse0 .cse1 .cse2 (not (= 0 ~methaneLevelCritical~0)) .cse3))) [2020-07-21 12:53:55,253 INFO L268 CegarLoopResult]: For program point L172-1(line 172) no Hoare annotation was computed. [2020-07-21 12:53:55,253 INFO L268 CegarLoopResult]: For program point L170(lines 170 187) no Hoare annotation was computed. [2020-07-21 12:53:55,253 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 920 931) no Hoare annotation was computed. [2020-07-21 12:53:55,253 INFO L268 CegarLoopResult]: For program point L924-1(lines 920 931) no Hoare annotation was computed. [2020-07-21 12:53:55,254 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 920 931) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse3 (not (<= 1 |old(~waterLevel~0)|))) (.cse4 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and (<= 1 ~waterLevel~0) (<= ~waterLevel~0 1)) .cse1 .cse2 .cse3) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|)) .cse4) (or .cse0 (not (<= 1 ~methaneLevelCritical~0)) .cse2 .cse3 .cse4))) [2020-07-21 12:53:55,254 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2020-07-21 12:53:55,254 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-07-21 12:53:55,254 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2020-07-21 12:53:55,254 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2020-07-21 12:53:55,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 12:53:55 BoogieIcfgContainer [2020-07-21 12:53:55,272 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 12:53:55,274 INFO L168 Benchmark]: Toolchain (without parser) took 29471.80 ms. Allocated memory was 138.4 MB in the beginning and 563.1 MB in the end (delta: 424.7 MB). Free memory was 101.8 MB in the beginning and 305.4 MB in the end (delta: -203.7 MB). Peak memory consumption was 449.9 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:55,275 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 12:53:55,275 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.36 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 168.5 MB in the end (delta: -67.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:55,276 INFO L168 Benchmark]: Boogie Preprocessor took 96.98 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 163.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:55,277 INFO L168 Benchmark]: RCFGBuilder took 1257.45 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 163.8 MB in the beginning and 191.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:55,277 INFO L168 Benchmark]: TraceAbstraction took 27427.19 ms. Allocated memory was 235.4 MB in the beginning and 563.1 MB in the end (delta: 327.7 MB). Free memory was 190.1 MB in the beginning and 305.4 MB in the end (delta: -115.3 MB). Peak memory consumption was 441.2 MB. Max. memory is 7.1 GB. [2020-07-21 12:53:55,280 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.4 MB. Free memory is still 121.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.36 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 101.3 MB in the beginning and 168.5 MB in the end (delta: -67.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.98 ms. Allocated memory is still 201.9 MB. Free memory was 168.5 MB in the beginning and 163.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1257.45 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 163.8 MB in the beginning and 191.6 MB in the end (delta: -27.8 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27427.19 ms. Allocated memory was 235.4 MB in the beginning and 563.1 MB in the end (delta: 327.7 MB). Free memory was 190.1 MB in the beginning and 305.4 MB in the end (delta: -115.3 MB). Peak memory consumption was 441.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: 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: 63]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || ((((1 <= methaneLevelCritical && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || ((((0 == methaneLevelCritical && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive) && \old(waterLevel) <= waterLevel)) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || (((0 == methaneLevelCritical && 2 <= waterLevel) && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 256 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.2s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2958 SDtfs, 2501 SDslu, 5984 SDs, 0 SdLazy, 4957 SolverSat, 1350 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2287 GetRequests, 2183 SyntacticMatches, 9 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1824occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 14 MinimizatonAttempts, 966 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 4276 PreInvPairs, 4373 NumberOfFragments, 2422 HoareAnnotationTreeSize, 4276 FomulaSimplifications, 13359 FormulaSimplificationTreeSizeReduction, 1.8s HoareSimplificationTime, 71 FomulaSimplificationsInter, 13600 FormulaSimplificationTreeSizeReductionInter, 6.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.9s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1879 NumberOfCodeBlocks, 1803 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 2245 ConstructedInterpolants, 0 QuantifiedInterpolants, 645558 SizeOfPredicates, 54 NumberOfNonLiveVariables, 11823 ConjunctsInSsa, 137 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 640/703 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...