/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:40:47,488 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:40:47,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:40:47,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:40:47,510 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:40:47,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:40:47,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:40:47,525 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:40:47,529 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:40:47,532 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:40:47,533 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:40:47,535 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:40:47,535 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:40:47,537 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:40:47,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:40:47,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:40:47,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:40:47,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:40:47,543 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:40:47,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:40:47,552 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:40:47,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:40:47,556 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:40:47,556 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:40:47,558 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:40:47,559 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:40:47,559 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:40:47,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:40:47,561 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:40:47,562 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:40:47,562 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:40:47,563 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:40:47,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:40:47,565 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:40:47,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:40:47,566 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:40:47,566 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:40:47,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:40:47,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:40:47,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:40:47,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:40:47,569 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 15:40:47,598 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:40:47,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:40:47,600 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:40:47,600 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:40:47,600 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:40:47,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:40:47,601 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:40:47,601 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:40:47,602 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:40:47,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:40:47,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:40:47,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:40:47,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:40:47,604 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:40:47,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:40:47,604 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:40:47,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:40:47,604 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:40:47,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:40:47,606 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:40:47,606 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:40:47,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:47,608 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:40:47,609 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:40:47,610 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:40:47,610 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:40:47,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:47,610 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:40:47,610 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:40:47,611 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:40:47,879 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:40:47,891 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:40:47,895 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:40:47,896 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:40:47,897 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:40:47,897 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-07-21 15:40:47,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8467997a7/eeaf860ab5884e7b87e54403dbc620bf/FLAGbaff4360b [2020-07-21 15:40:48,520 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:40:48,520 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product50.cil.c [2020-07-21 15:40:48,532 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8467997a7/eeaf860ab5884e7b87e54403dbc620bf/FLAGbaff4360b [2020-07-21 15:40:48,798 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8467997a7/eeaf860ab5884e7b87e54403dbc620bf [2020-07-21 15:40:48,808 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:40:48,810 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:40:48,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:48,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:40:48,815 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:40:48,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:48" (1/1) ... [2020-07-21 15:40:48,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35aee97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:48, skipping insertion in model container [2020-07-21 15:40:48,820 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:40:48" (1/1) ... [2020-07-21 15:40:48,827 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:40:48,880 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:40:49,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:49,348 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:40:49,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:40:49,499 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:40:49,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49 WrapperNode [2020-07-21 15:40:49,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:40:49,500 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:40:49,500 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:40:49,501 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:40:49,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,568 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,579 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,584 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (1/1) ... [2020-07-21 15:40:49,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:40:49,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:40:49,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:40:49,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:40:49,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (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 15:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:40:49,658 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:40:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:40:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:40:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:40:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:40:49,659 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:40:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:40:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:40:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-07-21 15:40:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-07-21 15:40:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:40:49,660 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:40:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:40:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:40:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:40:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:40:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:40:49,661 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 15:40:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:40:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:40:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:40:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:40:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:40:49,662 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:40:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:40:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:40:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:40:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:40:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 15:40:49,663 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:40:49,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:40:49,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:40:49,665 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:40:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:40:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:40:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:40:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:40:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:40:49,666 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:40:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:40:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:40:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-07-21 15:40:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:40:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:40:49,667 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:40:49,668 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:40:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:40:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 15:40:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:40:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:40:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:40:49,669 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:40:49,670 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:40:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:40:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:40:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:40:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:40:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:40:49,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:40:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:40:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:40:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:40:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:40:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:40:49,672 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:40:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:40:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:40:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:40:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:40:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:40:49,673 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:40:50,753 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:40:50,754 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:40:50,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:50 BoogieIcfgContainer [2020-07-21 15:40:50,760 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:40:50,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:40:50,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:40:50,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:40:50,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:40:48" (1/3) ... [2020-07-21 15:40:50,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55276b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:50, skipping insertion in model container [2020-07-21 15:40:50,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:40:49" (2/3) ... [2020-07-21 15:40:50,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55276b3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:40:50, skipping insertion in model container [2020-07-21 15:40:50,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:40:50" (3/3) ... [2020-07-21 15:40:50,768 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product50.cil.c [2020-07-21 15:40:50,779 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:40:50,788 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:40:50,802 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:40:50,825 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:40:50,825 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:40:50,826 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:40:50,826 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:40:50,827 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:40:50,827 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:40:50,827 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:40:50,827 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:40:50,852 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2020-07-21 15:40:50,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-21 15:40:50,863 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:50,864 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:40:50,865 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:50,872 INFO L82 PathProgramCache]: Analyzing trace with hash -1742083297, now seen corresponding path program 1 times [2020-07-21 15:40:50,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:50,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [669968949] [2020-07-21 15:40:50,882 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 15:40:51,237 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:51,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:51,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:40:51,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:51,289 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 15:40:51,290 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:51,292 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [669968949] [2020-07-21 15:40:51,292 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:51,293 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:40:51,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897342055] [2020-07-21 15:40:51,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:40:51,302 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:51,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:40:51,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:51,323 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2020-07-21 15:40:51,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:51,388 INFO L93 Difference]: Finished difference Result 270 states and 333 transitions. [2020-07-21 15:40:51,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:40:51,390 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2020-07-21 15:40:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:51,411 INFO L225 Difference]: With dead ends: 270 [2020-07-21 15:40:51,411 INFO L226 Difference]: Without dead ends: 137 [2020-07-21 15:40:51,421 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:40:51,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-07-21 15:40:51,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2020-07-21 15:40:51,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137 states. [2020-07-21 15:40:51,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2020-07-21 15:40:51,533 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 51 [2020-07-21 15:40:51,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:51,534 INFO L479 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2020-07-21 15:40:51,535 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:40:51,535 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2020-07-21 15:40:51,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:40:51,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:51,540 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 15:40:51,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:51,742 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:51,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:51,743 INFO L82 PathProgramCache]: Analyzing trace with hash 604742129, now seen corresponding path program 1 times [2020-07-21 15:40:51,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:51,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [691297947] [2020-07-21 15:40:51,744 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 15:40:52,039 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:52,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:52,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:40:52,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:52,084 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 15:40:52,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:52,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [691297947] [2020-07-21 15:40:52,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:52,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:52,085 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690816849] [2020-07-21 15:40:52,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:52,087 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:52,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:52,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:52,088 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand 3 states. [2020-07-21 15:40:52,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:52,110 INFO L93 Difference]: Finished difference Result 215 states and 251 transitions. [2020-07-21 15:40:52,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:52,111 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 15:40:52,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:52,113 INFO L225 Difference]: With dead ends: 215 [2020-07-21 15:40:52,113 INFO L226 Difference]: Without dead ends: 128 [2020-07-21 15:40:52,115 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 15:40:52,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-21 15:40:52,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-21 15:40:52,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-21 15:40:52,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 148 transitions. [2020-07-21 15:40:52,132 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 148 transitions. Word has length 52 [2020-07-21 15:40:52,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:52,132 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 148 transitions. [2020-07-21 15:40:52,133 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:52,133 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 148 transitions. [2020-07-21 15:40:52,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 15:40:52,135 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:52,136 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] [2020-07-21 15:40:52,349 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:52,350 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:52,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:52,351 INFO L82 PathProgramCache]: Analyzing trace with hash -185652476, now seen corresponding path program 1 times [2020-07-21 15:40:52,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:52,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1077845783] [2020-07-21 15:40:52,353 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 15:40:52,698 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:52,699 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:52,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 15:40:52,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:52,749 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 15:40:52,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:52,750 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1077845783] [2020-07-21 15:40:52,750 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:52,750 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:52,751 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217105618] [2020-07-21 15:40:52,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:52,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:52,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:52,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:52,753 INFO L87 Difference]: Start difference. First operand 128 states and 148 transitions. Second operand 3 states. [2020-07-21 15:40:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:52,786 INFO L93 Difference]: Finished difference Result 228 states and 269 transitions. [2020-07-21 15:40:52,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:52,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2020-07-21 15:40:52,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:52,789 INFO L225 Difference]: With dead ends: 228 [2020-07-21 15:40:52,789 INFO L226 Difference]: Without dead ends: 128 [2020-07-21 15:40:52,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 55 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 15:40:52,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-21 15:40:52,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-21 15:40:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-21 15:40:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 147 transitions. [2020-07-21 15:40:52,804 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 147 transitions. Word has length 57 [2020-07-21 15:40:52,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:52,804 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 147 transitions. [2020-07-21 15:40:52,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:52,804 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 147 transitions. [2020-07-21 15:40:52,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-21 15:40:52,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:52,807 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 15:40:53,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:53,021 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:53,022 INFO L82 PathProgramCache]: Analyzing trace with hash -285076691, now seen corresponding path program 1 times [2020-07-21 15:40:53,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:53,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1800020245] [2020-07-21 15:40:53,024 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 15:40:53,306 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:53,306 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:53,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 719 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:53,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:53,339 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 15:40:53,340 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:53,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1800020245] [2020-07-21 15:40:53,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:53,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:53,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651736978] [2020-07-21 15:40:53,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:53,342 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:53,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:53,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:53,343 INFO L87 Difference]: Start difference. First operand 128 states and 147 transitions. Second operand 3 states. [2020-07-21 15:40:53,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:53,382 INFO L93 Difference]: Finished difference Result 228 states and 270 transitions. [2020-07-21 15:40:53,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:53,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-21 15:40:53,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:53,386 INFO L225 Difference]: With dead ends: 228 [2020-07-21 15:40:53,387 INFO L226 Difference]: Without dead ends: 225 [2020-07-21 15:40:53,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 68 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 15:40:53,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-07-21 15:40:53,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2020-07-21 15:40:53,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 225 states. [2020-07-21 15:40:53,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 267 transitions. [2020-07-21 15:40:53,413 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 267 transitions. Word has length 70 [2020-07-21 15:40:53,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:53,413 INFO L479 AbstractCegarLoop]: Abstraction has 225 states and 267 transitions. [2020-07-21 15:40:53,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:53,414 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 267 transitions. [2020-07-21 15:40:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-07-21 15:40:53,417 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:53,417 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:53,630 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:53,631 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:53,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:53,631 INFO L82 PathProgramCache]: Analyzing trace with hash -1586063655, now seen corresponding path program 1 times [2020-07-21 15:40:53,632 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:53,632 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [562964017] [2020-07-21 15:40:53,633 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 15:40:53,986 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:53,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:53,991 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:40:53,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:54,064 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 15:40:54,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:54,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [562964017] [2020-07-21 15:40:54,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:54,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-21 15:40:54,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516905127] [2020-07-21 15:40:54,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 15:40:54,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:54,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 15:40:54,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:54,070 INFO L87 Difference]: Start difference. First operand 225 states and 267 transitions. Second operand 7 states. [2020-07-21 15:40:54,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:54,833 INFO L93 Difference]: Finished difference Result 540 states and 691 transitions. [2020-07-21 15:40:54,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 15:40:54,834 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 114 [2020-07-21 15:40:54,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:54,839 INFO L225 Difference]: With dead ends: 540 [2020-07-21 15:40:54,840 INFO L226 Difference]: Without dead ends: 343 [2020-07-21 15:40:54,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:40:54,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-07-21 15:40:54,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 311. [2020-07-21 15:40:54,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 311 states. [2020-07-21 15:40:54,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 376 transitions. [2020-07-21 15:40:54,887 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 376 transitions. Word has length 114 [2020-07-21 15:40:54,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:54,887 INFO L479 AbstractCegarLoop]: Abstraction has 311 states and 376 transitions. [2020-07-21 15:40:54,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 15:40:54,887 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 376 transitions. [2020-07-21 15:40:54,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 15:40:54,890 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:54,890 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:55,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:55,105 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:55,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:55,106 INFO L82 PathProgramCache]: Analyzing trace with hash -1557431491, now seen corresponding path program 1 times [2020-07-21 15:40:55,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:55,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1678984840] [2020-07-21 15:40:55,107 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 15:40:55,451 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:55,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:55,455 INFO L263 TraceCheckSpWp]: Trace formula consists of 915 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:40:55,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:55,524 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 15:40:55,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:40:55,712 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:55,742 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:40:55,834 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2020-07-21 15:40:55,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1678984840] [2020-07-21 15:40:55,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 15:40:55,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 15:40:55,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296457453] [2020-07-21 15:40:55,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:55,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:55,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:55,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:55,837 INFO L87 Difference]: Start difference. First operand 311 states and 376 transitions. Second operand 5 states. [2020-07-21 15:40:56,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:56,298 INFO L93 Difference]: Finished difference Result 842 states and 1117 transitions. [2020-07-21 15:40:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:56,299 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-07-21 15:40:56,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:56,304 INFO L225 Difference]: With dead ends: 842 [2020-07-21 15:40:56,305 INFO L226 Difference]: Without dead ends: 559 [2020-07-21 15:40:56,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 283 SyntacticMatches, 7 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:40:56,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2020-07-21 15:40:56,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 538. [2020-07-21 15:40:56,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2020-07-21 15:40:56,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 711 transitions. [2020-07-21 15:40:56,358 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 711 transitions. Word has length 148 [2020-07-21 15:40:56,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:56,359 INFO L479 AbstractCegarLoop]: Abstraction has 538 states and 711 transitions. [2020-07-21 15:40:56,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:56,359 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 711 transitions. [2020-07-21 15:40:56,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-07-21 15:40:56,362 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:56,363 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:56,575 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:56,576 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:56,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:56,577 INFO L82 PathProgramCache]: Analyzing trace with hash 183568124, now seen corresponding path program 1 times [2020-07-21 15:40:56,577 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:56,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1368479655] [2020-07-21 15:40:56,578 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 15:40:56,769 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:56,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:56,773 INFO L263 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-21 15:40:56,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:56,818 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2020-07-21 15:40:56,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:56,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1368479655] [2020-07-21 15:40:56,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:56,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:40:56,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24588742] [2020-07-21 15:40:56,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:56,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:56,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:56,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:56,825 INFO L87 Difference]: Start difference. First operand 538 states and 711 transitions. Second operand 5 states. [2020-07-21 15:40:56,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:56,867 INFO L93 Difference]: Finished difference Result 1068 states and 1472 transitions. [2020-07-21 15:40:56,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:40:56,868 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 148 [2020-07-21 15:40:56,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:56,873 INFO L225 Difference]: With dead ends: 1068 [2020-07-21 15:40:56,873 INFO L226 Difference]: Without dead ends: 558 [2020-07-21 15:40:56,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 144 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 15:40:56,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states. [2020-07-21 15:40:56,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 552. [2020-07-21 15:40:56,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 552 states. [2020-07-21 15:40:56,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 725 transitions. [2020-07-21 15:40:56,922 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 725 transitions. Word has length 148 [2020-07-21 15:40:56,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:56,922 INFO L479 AbstractCegarLoop]: Abstraction has 552 states and 725 transitions. [2020-07-21 15:40:56,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:56,923 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 725 transitions. [2020-07-21 15:40:56,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-21 15:40:56,926 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:56,926 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:57,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:57,142 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:57,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:57,142 INFO L82 PathProgramCache]: Analyzing trace with hash 446312289, now seen corresponding path program 1 times [2020-07-21 15:40:57,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:57,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [350063126] [2020-07-21 15:40:57,143 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 15:40:57,397 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:57,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:57,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 15:40:57,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:57,431 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:40:57,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:57,431 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [350063126] [2020-07-21 15:40:57,431 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:57,431 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:40:57,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303061632] [2020-07-21 15:40:57,432 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:40:57,432 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:57,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:40:57,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:40:57,433 INFO L87 Difference]: Start difference. First operand 552 states and 725 transitions. Second operand 3 states. [2020-07-21 15:40:57,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:57,528 INFO L93 Difference]: Finished difference Result 972 states and 1315 transitions. [2020-07-21 15:40:57,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:40:57,528 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-21 15:40:57,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:57,531 INFO L225 Difference]: With dead ends: 972 [2020-07-21 15:40:57,532 INFO L226 Difference]: Without dead ends: 448 [2020-07-21 15:40:57,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 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 15:40:57,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 448 states. [2020-07-21 15:40:57,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 448 to 448. [2020-07-21 15:40:57,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-07-21 15:40:57,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 544 transitions. [2020-07-21 15:40:57,563 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 544 transitions. Word has length 144 [2020-07-21 15:40:57,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:57,564 INFO L479 AbstractCegarLoop]: Abstraction has 448 states and 544 transitions. [2020-07-21 15:40:57,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:40:57,564 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 544 transitions. [2020-07-21 15:40:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 15:40:57,567 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:57,567 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:57,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:57,781 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:57,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:57,781 INFO L82 PathProgramCache]: Analyzing trace with hash -898751756, now seen corresponding path program 1 times [2020-07-21 15:40:57,781 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:57,781 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789643921] [2020-07-21 15:40:57,782 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 15:40:58,023 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:58,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:58,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 15:40:58,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:58,109 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-07-21 15:40:58,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:40:58,325 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-07-21 15:40:58,326 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789643921] [2020-07-21 15:40:58,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 15:40:58,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2020-07-21 15:40:58,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768004788] [2020-07-21 15:40:58,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:58,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:58,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:58,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-21 15:40:58,327 INFO L87 Difference]: Start difference. First operand 448 states and 544 transitions. Second operand 6 states. [2020-07-21 15:40:58,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:58,556 INFO L93 Difference]: Finished difference Result 1224 states and 1548 transitions. [2020-07-21 15:40:58,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 15:40:58,556 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 15:40:58,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:58,561 INFO L225 Difference]: With dead ends: 1224 [2020-07-21 15:40:58,561 INFO L226 Difference]: Without dead ends: 804 [2020-07-21 15:40:58,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-21 15:40:58,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2020-07-21 15:40:58,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 726. [2020-07-21 15:40:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 726 states. [2020-07-21 15:40:58,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 726 states to 726 states and 874 transitions. [2020-07-21 15:40:58,613 INFO L78 Accepts]: Start accepts. Automaton has 726 states and 874 transitions. Word has length 146 [2020-07-21 15:40:58,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:58,613 INFO L479 AbstractCegarLoop]: Abstraction has 726 states and 874 transitions. [2020-07-21 15:40:58,614 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:58,614 INFO L276 IsEmpty]: Start isEmpty. Operand 726 states and 874 transitions. [2020-07-21 15:40:58,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 15:40:58,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:58,617 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:58,830 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:58,831 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:58,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:58,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1839600208, now seen corresponding path program 1 times [2020-07-21 15:40:58,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:58,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2048959036] [2020-07-21 15:40:58,833 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 15:40:59,089 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:40:59,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:59,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 920 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:40:59,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:59,170 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-21 15:40:59,170 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:59,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2048959036] [2020-07-21 15:40:59,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:59,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:40:59,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005815812] [2020-07-21 15:40:59,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:40:59,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:59,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:40:59,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:40:59,172 INFO L87 Difference]: Start difference. First operand 726 states and 874 transitions. Second operand 6 states. [2020-07-21 15:40:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:59,230 INFO L93 Difference]: Finished difference Result 1438 states and 1752 transitions. [2020-07-21 15:40:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:40:59,231 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2020-07-21 15:40:59,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:59,235 INFO L225 Difference]: With dead ends: 1438 [2020-07-21 15:40:59,236 INFO L226 Difference]: Without dead ends: 740 [2020-07-21 15:40:59,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 145 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 15:40:59,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-07-21 15:40:59,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 740. [2020-07-21 15:40:59,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 740 states. [2020-07-21 15:40:59,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 888 transitions. [2020-07-21 15:40:59,280 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 888 transitions. Word has length 150 [2020-07-21 15:40:59,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:59,280 INFO L479 AbstractCegarLoop]: Abstraction has 740 states and 888 transitions. [2020-07-21 15:40:59,280 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:40:59,280 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 888 transitions. [2020-07-21 15:40:59,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 15:40:59,283 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:59,284 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:59,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:59,498 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:40:59,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:40:59,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1811099918, now seen corresponding path program 1 times [2020-07-21 15:40:59,499 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:40:59,500 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1647800592] [2020-07-21 15:40:59,500 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 15:40:59,678 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:40:59,678 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:40:59,682 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:40:59,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:40:59,716 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2020-07-21 15:40:59,717 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:40:59,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1647800592] [2020-07-21 15:40:59,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:40:59,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:40:59,718 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815534896] [2020-07-21 15:40:59,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:40:59,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:40:59,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:40:59,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:40:59,719 INFO L87 Difference]: Start difference. First operand 740 states and 888 transitions. Second operand 5 states. [2020-07-21 15:40:59,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:40:59,762 INFO L93 Difference]: Finished difference Result 1418 states and 1739 transitions. [2020-07-21 15:40:59,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:40:59,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2020-07-21 15:40:59,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:40:59,767 INFO L225 Difference]: With dead ends: 1418 [2020-07-21 15:40:59,767 INFO L226 Difference]: Without dead ends: 706 [2020-07-21 15:40:59,770 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 146 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 15:40:59,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-07-21 15:40:59,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 706. [2020-07-21 15:40:59,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-07-21 15:40:59,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 845 transitions. [2020-07-21 15:40:59,813 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 845 transitions. Word has length 150 [2020-07-21 15:40:59,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:40:59,813 INFO L479 AbstractCegarLoop]: Abstraction has 706 states and 845 transitions. [2020-07-21 15:40:59,814 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:40:59,814 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 845 transitions. [2020-07-21 15:40:59,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-21 15:40:59,817 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:40:59,817 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:41:00,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:00,032 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:00,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:00,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1282734317, now seen corresponding path program 1 times [2020-07-21 15:41:00,032 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:00,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1414236434] [2020-07-21 15:41:00,033 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 15:41:00,250 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:41:00,251 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:00,253 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:41:00,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:00,306 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:00,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:00,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1414236434] [2020-07-21 15:41:00,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:00,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:00,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380427823] [2020-07-21 15:41:00,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:00,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:00,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:00,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:00,309 INFO L87 Difference]: Start difference. First operand 706 states and 845 transitions. Second operand 6 states. [2020-07-21 15:41:01,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:01,165 INFO L93 Difference]: Finished difference Result 1903 states and 2390 transitions. [2020-07-21 15:41:01,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:41:01,165 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 150 [2020-07-21 15:41:01,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:01,175 INFO L225 Difference]: With dead ends: 1903 [2020-07-21 15:41:01,175 INFO L226 Difference]: Without dead ends: 1225 [2020-07-21 15:41:01,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 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 15:41:01,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1225 states. [2020-07-21 15:41:01,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1225 to 1196. [2020-07-21 15:41:01,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1196 states. [2020-07-21 15:41:01,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1447 transitions. [2020-07-21 15:41:01,259 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1447 transitions. Word has length 150 [2020-07-21 15:41:01,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:01,259 INFO L479 AbstractCegarLoop]: Abstraction has 1196 states and 1447 transitions. [2020-07-21 15:41:01,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1447 transitions. [2020-07-21 15:41:01,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 15:41:01,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:01,263 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, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:01,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:01,478 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:01,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1764550393, now seen corresponding path program 1 times [2020-07-21 15:41:01,479 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:01,480 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1490873464] [2020-07-21 15:41:01,480 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 15:41:01,925 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:01,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:01,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:41:01,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:02,085 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:02,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:02,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1490873464] [2020-07-21 15:41:02,087 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:02,087 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-21 15:41:02,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892140557] [2020-07-21 15:41:02,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 15:41:02,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:02,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 15:41:02,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-21 15:41:02,090 INFO L87 Difference]: Start difference. First operand 1196 states and 1447 transitions. Second operand 9 states. [2020-07-21 15:41:03,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:03,443 INFO L93 Difference]: Finished difference Result 3195 states and 4163 transitions. [2020-07-21 15:41:03,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 15:41:03,444 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 154 [2020-07-21 15:41:03,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:03,463 INFO L225 Difference]: With dead ends: 3195 [2020-07-21 15:41:03,464 INFO L226 Difference]: Without dead ends: 2027 [2020-07-21 15:41:03,471 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2020-07-21 15:41:03,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-07-21 15:41:03,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1602. [2020-07-21 15:41:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1602 states. [2020-07-21 15:41:03,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1602 states to 1602 states and 1907 transitions. [2020-07-21 15:41:03,644 INFO L78 Accepts]: Start accepts. Automaton has 1602 states and 1907 transitions. Word has length 154 [2020-07-21 15:41:03,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:03,645 INFO L479 AbstractCegarLoop]: Abstraction has 1602 states and 1907 transitions. [2020-07-21 15:41:03,645 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 15:41:03,645 INFO L276 IsEmpty]: Start isEmpty. Operand 1602 states and 1907 transitions. [2020-07-21 15:41:03,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 15:41:03,649 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:03,649 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, 1, 1, 1, 1, 1, 1] [2020-07-21 15:41:03,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:03,865 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:03,866 INFO L82 PathProgramCache]: Analyzing trace with hash -1836936951, now seen corresponding path program 1 times [2020-07-21 15:41:03,866 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:03,867 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023705881] [2020-07-21 15:41:03,867 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 15:41:04,147 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:04,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:04,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 931 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 15:41:04,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:04,191 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 15:41:04,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:04,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023705881] [2020-07-21 15:41:04,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:04,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:04,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092831145] [2020-07-21 15:41:04,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:04,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:04,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:04,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:04,193 INFO L87 Difference]: Start difference. First operand 1602 states and 1907 transitions. Second operand 6 states. [2020-07-21 15:41:04,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:04,251 INFO L93 Difference]: Finished difference Result 2165 states and 2569 transitions. [2020-07-21 15:41:04,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:04,252 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2020-07-21 15:41:04,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:04,256 INFO L225 Difference]: With dead ends: 2165 [2020-07-21 15:41:04,256 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 15:41:04,262 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 149 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 15:41:04,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 15:41:04,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 15:41:04,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 15:41:04,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 15:41:04,264 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 154 [2020-07-21 15:41:04,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:04,264 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 15:41:04,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:04,264 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 15:41:04,264 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 15:41:04,477 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:04,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 15:41:06,202 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 23 [2020-07-21 15:41:06,378 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 24 [2020-07-21 15:41:06,792 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 26 [2020-07-21 15:41:06,933 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 21 [2020-07-21 15:41:07,174 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2020-07-21 15:41:07,362 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 28 [2020-07-21 15:41:07,575 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 20 [2020-07-21 15:41:07,731 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 26 [2020-07-21 15:41:08,197 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 42 [2020-07-21 15:41:08,319 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-21 15:41:08,759 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-07-21 15:41:09,047 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 33 [2020-07-21 15:41:09,463 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2020-07-21 15:41:09,732 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 38 [2020-07-21 15:41:09,993 INFO L268 CegarLoopResult]: For program point L705(lines 682 706) no Hoare annotation was computed. [2020-07-21 15:41:09,993 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 658 713) no Hoare annotation was computed. [2020-07-21 15:41:09,993 INFO L268 CegarLoopResult]: For program point L689(lines 689 693) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point L689-1(lines 689 693) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point L684(line 684) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point L683-2(lines 683 704) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 658 713) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 658 713) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point L766(lines 739 767) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point L759(line 759) no Hoare annotation was computed. [2020-07-21 15:41:09,994 INFO L268 CegarLoopResult]: For program point L759-1(line 759) no Hoare annotation was computed. [2020-07-21 15:41:09,995 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 714 773) no Hoare annotation was computed. [2020-07-21 15:41:09,995 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 714 773) no Hoare annotation was computed. [2020-07-21 15:41:09,995 INFO L268 CegarLoopResult]: For program point L746(lines 746 750) no Hoare annotation was computed. [2020-07-21 15:41:09,995 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 714 773) no Hoare annotation was computed. [2020-07-21 15:41:09,995 INFO L268 CegarLoopResult]: For program point L746-1(lines 746 750) no Hoare annotation was computed. [2020-07-21 15:41:09,996 INFO L268 CegarLoopResult]: For program point L741(line 741) no Hoare annotation was computed. [2020-07-21 15:41:09,996 INFO L268 CegarLoopResult]: For program point L740-2(lines 740 765) no Hoare annotation was computed. [2020-07-21 15:41:09,996 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 61 67) the Hoare annotation is: true [2020-07-21 15:41:09,997 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 61 67) no Hoare annotation was computed. [2020-07-21 15:41:09,997 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 68 76) no Hoare annotation was computed. [2020-07-21 15:41:09,997 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 68 76) the Hoare annotation is: true [2020-07-21 15:41:09,997 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 68 76) no Hoare annotation was computed. [2020-07-21 15:41:09,999 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 157 179) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:09,999 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 157 179) no Hoare annotation was computed. [2020-07-21 15:41:09,999 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 157 179) no Hoare annotation was computed. [2020-07-21 15:41:09,999 INFO L264 CegarLoopResult]: At program point L169(line 169) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,000 INFO L264 CegarLoopResult]: At program point L169-1(line 169) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,000 INFO L268 CegarLoopResult]: For program point L167(lines 167 174) no Hoare annotation was computed. [2020-07-21 15:41:10,001 INFO L268 CegarLoopResult]: For program point L167-1(lines 167 174) no Hoare annotation was computed. [2020-07-21 15:41:10,001 INFO L268 CegarLoopResult]: For program point L165(line 165) no Hoare annotation was computed. [2020-07-21 15:41:10,001 INFO L264 CegarLoopResult]: At program point L164(line 164) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,002 INFO L264 CegarLoopResult]: At program point L163(line 163) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,002 INFO L264 CegarLoopResult]: At program point L163-1(line 163) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,002 INFO L268 CegarLoopResult]: For program point L129(line 129) no Hoare annotation was computed. [2020-07-21 15:41:10,002 INFO L268 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-07-21 15:41:10,002 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 113 136) no Hoare annotation was computed. [2020-07-21 15:41:10,002 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point L126(line 126) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 113 136) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 113 136) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-07-21 15:41:10,003 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point L120(line 120) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 447 455) no Hoare annotation was computed. [2020-07-21 15:41:10,004 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 447 455) the Hoare annotation is: true [2020-07-21 15:41:10,004 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 447 455) no Hoare annotation was computed. [2020-07-21 15:41:10,005 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 511 529) the Hoare annotation is: true [2020-07-21 15:41:10,005 INFO L268 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2020-07-21 15:41:10,005 INFO L271 CegarLoopResult]: At program point L518(line 518) the Hoare annotation is: true [2020-07-21 15:41:10,005 INFO L268 CegarLoopResult]: For program point L520-2(lines 520 524) no Hoare annotation was computed. [2020-07-21 15:41:10,005 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 511 529) no Hoare annotation was computed. [2020-07-21 15:41:10,005 INFO L268 CegarLoopResult]: For program point L518-1(line 518) no Hoare annotation was computed. [2020-07-21 15:41:10,005 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 511 529) no Hoare annotation was computed. [2020-07-21 15:41:10,005 INFO L268 CegarLoopResult]: For program point L475(lines 475 483) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point L475-2(lines 475 483) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point L463(lines 463 471) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 456 491) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point L463-2(lines 463 471) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 456 491) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point L486(line 486) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point L486-1(line 486) no Hoare annotation was computed. [2020-07-21 15:41:10,006 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 456 491) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 54 60) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 54 60) the Hoare annotation is: true [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 612 657) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 612 657) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 612 657) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 925 970) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point L945(lines 945 952) no Hoare annotation was computed. [2020-07-21 15:41:10,007 INFO L268 CegarLoopResult]: For program point L939(lines 939 959) no Hoare annotation was computed. [2020-07-21 15:41:10,008 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 925 970) no Hoare annotation was computed. [2020-07-21 15:41:10,008 INFO L268 CegarLoopResult]: For program point L939-1(lines 939 959) no Hoare annotation was computed. [2020-07-21 15:41:10,008 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 925 970) no Hoare annotation was computed. [2020-07-21 15:41:10,008 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 146 156) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,008 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 146 156) no Hoare annotation was computed. [2020-07-21 15:41:10,008 INFO L264 CegarLoopResult]: At program point L151(line 151) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,008 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 146 156) no Hoare annotation was computed. [2020-07-21 15:41:10,009 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 436 446) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 436 446) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point L441(line 441) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 436 446) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 428 435) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))) [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 428 435) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 428 435) no Hoare annotation was computed. [2020-07-21 15:41:10,010 INFO L268 CegarLoopResult]: For program point L311(lines 311 317) no Hoare annotation was computed. [2020-07-21 15:41:10,011 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 307 320) no Hoare annotation was computed. [2020-07-21 15:41:10,011 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 307 320) the Hoare annotation is: true [2020-07-21 15:41:10,011 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 307 320) no Hoare annotation was computed. [2020-07-21 15:41:10,011 INFO L264 CegarLoopResult]: At program point L414(line 414) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:10,011 INFO L268 CegarLoopResult]: For program point L414-1(lines 395 419) no Hoare annotation was computed. [2020-07-21 15:41:10,011 INFO L264 CegarLoopResult]: At program point L409(line 409) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 15:41:10,011 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 395 419) no Hoare annotation was computed. [2020-07-21 15:41:10,011 INFO L264 CegarLoopResult]: At program point L405(line 405) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~3))))) [2020-07-21 15:41:10,012 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 395 419) 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 (<= 1 |old(~pumpRunning~0)|))) (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:10,012 INFO L268 CegarLoopResult]: For program point L403(lines 403 411) no Hoare annotation was computed. [2020-07-21 15:41:10,012 INFO L264 CegarLoopResult]: At program point L401(line 401) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 15:41:10,012 INFO L268 CegarLoopResult]: For program point L401-1(line 401) no Hoare annotation was computed. [2020-07-21 15:41:10,012 INFO L268 CegarLoopResult]: For program point L399(lines 399 416) no Hoare annotation was computed. [2020-07-21 15:41:10,012 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 361 367) no Hoare annotation was computed. [2020-07-21 15:41:10,012 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 361 367) the Hoare annotation is: true [2020-07-21 15:41:10,012 INFO L264 CegarLoopResult]: At program point testENTRY(lines 539 604) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,013 INFO L268 CegarLoopResult]: For program point testFINAL(lines 539 604) no Hoare annotation was computed. [2020-07-21 15:41:10,013 INFO L264 CegarLoopResult]: At program point L597(lines 548 598) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:41:10,013 INFO L268 CegarLoopResult]: For program point L587(lines 587 591) no Hoare annotation was computed. [2020-07-21 15:41:10,013 INFO L264 CegarLoopResult]: At program point L587-2(lines 579 592) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= 1 ~pumpRunning~0)) (and (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,013 INFO L268 CegarLoopResult]: For program point L550(lines 549 596) no Hoare annotation was computed. [2020-07-21 15:41:10,013 INFO L264 CegarLoopResult]: At program point L581(line 581) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= 1 ~pumpRunning~0)) (and (= 0 ~methAndRunningLastTime~0) (= 0 ~pumpRunning~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,013 INFO L268 CegarLoopResult]: For program point L579(lines 579 592) no Hoare annotation was computed. [2020-07-21 15:41:10,014 INFO L264 CegarLoopResult]: At program point L571(line 571) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,014 INFO L268 CegarLoopResult]: For program point L569(lines 569 575) no Hoare annotation was computed. [2020-07-21 15:41:10,014 INFO L268 CegarLoopResult]: For program point L569-1(lines 569 575) no Hoare annotation was computed. [2020-07-21 15:41:10,014 INFO L264 CegarLoopResult]: At program point L594(lines 549 596) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,014 INFO L264 CegarLoopResult]: At program point L561(line 561) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0)) (.cse1 (<= 1 ~systemActive~0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 2 ~waterLevel~0) .cse0 .cse1 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 |old(~pumpRunning~0)|)) (not (= |old(~methaneLevelCritical~0)| 0)) (and (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0 .cse1) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:41:10,014 INFO L268 CegarLoopResult]: For program point L559(lines 559 565) no Hoare annotation was computed. [2020-07-21 15:41:10,014 INFO L268 CegarLoopResult]: For program point L559-1(lines 559 565) no Hoare annotation was computed. [2020-07-21 15:41:10,014 INFO L268 CegarLoopResult]: For program point L551(lines 551 555) no Hoare annotation was computed. [2020-07-21 15:41:10,014 INFO L268 CegarLoopResult]: For program point testEXIT(lines 539 604) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point L893(lines 893 913) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point L893-1(lines 893 913) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 879 924) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 879 924) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 879 924) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point L899(lines 899 906) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 321 329) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 321 329) the Hoare annotation is: true [2020-07-21 15:41:10,015 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 321 329) no Hoare annotation was computed. [2020-07-21 15:41:10,015 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__2ENTRY(lines 193 221) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))) [2020-07-21 15:41:10,016 INFO L264 CegarLoopResult]: At program point L208(line 208) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0))) (or .cse0 (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-21 15:41:10,016 INFO L268 CegarLoopResult]: For program point L206(lines 206 212) no Hoare annotation was computed. [2020-07-21 15:41:10,016 INFO L268 CegarLoopResult]: For program point L205(lines 205 215) no Hoare annotation was computed. [2020-07-21 15:41:10,016 INFO L264 CegarLoopResult]: At program point L203(line 203) the Hoare annotation is: (let ((.cse1 (not (= 0 ~methaneLevelCritical~0))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse3 (not (<= 2 ~waterLevel~0))) (.cse4 (not (<= 1 ~pumpRunning~0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse2 .cse1 .cse3 .cse4) (or .cse0 (= 0 ~methAndRunningLastTime~0) .cse2 .cse3 .cse4))) [2020-07-21 15:41:10,016 INFO L268 CegarLoopResult]: For program point L203-1(line 203) no Hoare annotation was computed. [2020-07-21 15:41:10,016 INFO L268 CegarLoopResult]: For program point L201(lines 201 218) no Hoare annotation was computed. [2020-07-21 15:41:10,016 INFO L268 CegarLoopResult]: For program point L201-1(lines 193 221) no Hoare annotation was computed. [2020-07-21 15:41:10,016 INFO L264 CegarLoopResult]: At program point L199(line 199) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))) [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point L199-1(line 199) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__2EXIT(lines 193 221) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L264 CegarLoopResult]: At program point __utac_acc__Specification2_spec__1ENTRY(lines 185 192) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (= 0 ~methAndRunningLastTime~0) (not (= 0 |old(~methAndRunningLastTime~0)|)) (not (= 0 ~methaneLevelCritical~0)) (not (<= ~waterLevel~0 1)) (not (= 0 ~pumpRunning~0))) [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1FINAL(lines 185 192) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification2_spec__1EXIT(lines 185 192) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point L283(lines 283 291) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point L283-2(lines 283 291) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 275 297) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 275 297) no Hoare annotation was computed. [2020-07-21 15:41:10,017 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 275 297) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 44 53) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 44 53) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 44 53) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point L865(lines 865 872) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 776 878) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point L826(lines 825 845) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point L857(line 857) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point L857-1(line 857) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point L822(lines 822 863) no Hoare annotation was computed. [2020-07-21 15:41:10,018 INFO L268 CegarLoopResult]: For program point L841(line 841) no Hoare annotation was computed. [2020-07-21 15:41:10,019 INFO L268 CegarLoopResult]: For program point L841-1(line 841) no Hoare annotation was computed. [2020-07-21 15:41:10,019 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 776 878) no Hoare annotation was computed. [2020-07-21 15:41:10,019 INFO L268 CegarLoopResult]: For program point L800(lines 800 804) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point L864(lines 864 875) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point L827(lines 827 831) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point L825-2(lines 825 845) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 776 878) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point L846(lines 824 847) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point L805(lines 805 821) no Hoare annotation was computed. [2020-07-21 15:41:10,020 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,020 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 15:41:10,021 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,021 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 420 427) no Hoare annotation was computed. [2020-07-21 15:41:10,021 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 420 427) no Hoare annotation was computed. [2020-07-21 15:41:10,021 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 420 427) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 15:41:10,021 INFO L268 CegarLoopResult]: For program point getWaterLevelENTRY(lines 298 306) no Hoare annotation was computed. [2020-07-21 15:41:10,021 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 298 306) no Hoare annotation was computed. [2020-07-21 15:41:10,021 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 298 306) no Hoare annotation was computed. [2020-07-21 15:41:10,021 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 492 510) no Hoare annotation was computed. [2020-07-21 15:41:10,022 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 492 510) the Hoare annotation is: true [2020-07-21 15:41:10,022 INFO L268 CegarLoopResult]: For program point L501(lines 501 505) no Hoare annotation was computed. [2020-07-21 15:41:10,022 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 492 510) no Hoare annotation was computed. [2020-07-21 15:41:10,022 INFO L271 CegarLoopResult]: At program point L499(line 499) the Hoare annotation is: true [2020-07-21 15:41:10,022 INFO L268 CegarLoopResult]: For program point L501-2(lines 501 505) no Hoare annotation was computed. [2020-07-21 15:41:10,022 INFO L268 CegarLoopResult]: For program point L499-1(line 499) no Hoare annotation was computed. [2020-07-21 15:41:10,022 INFO L268 CegarLoopResult]: For program point L258-1(lines 254 265) no Hoare annotation was computed. [2020-07-21 15:41:10,022 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 254 265) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methaneLevelCritical~0)) (.cse3 (not (= |old(~methaneLevelCritical~0)| 0)))) (and (or .cse0 (not (<= 1 ~waterLevel~0)) .cse1 .cse2 .cse3 (not (= 0 ~pumpRunning~0))) (or .cse0 .cse1 .cse2 .cse3 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-21 15:41:10,023 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 254 265) no Hoare annotation was computed. [2020-07-21 15:41:10,023 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,024 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,024 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,024 INFO L264 CegarLoopResult]: At program point L350(line 350) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~methAndRunningLastTime~0)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (and .cse2 .cse3 (= 0 ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse4 (and .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1))) .cse5) (or .cse0 .cse2 .cse4 .cse1 .cse5))) [2020-07-21 15:41:10,024 INFO L264 CegarLoopResult]: At program point L348(lines 348 354) the Hoare annotation is: (let ((.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse2 (= 0 ~pumpRunning~0)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse6 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse1 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2) .cse3) (or .cse0 (and .cse1 .cse2 .cse4) .cse5 .cse6 (and (= 0 ~methAndRunningLastTime~0) .cse1 (<= 1 ~pumpRunning~0) .cse4) .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (<= ~waterLevel~0 1) .cse4) .cse5 .cse6 (not (<= 1 |old(~waterLevel~0)|))))) [2020-07-21 15:41:10,025 INFO L264 CegarLoopResult]: At program point L343(line 343) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse3 (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (= 0 ~methAndRunningLastTime~0) .cse1 .cse3 .cse2))) [2020-07-21 15:41:10,025 INFO L268 CegarLoopResult]: For program point L341(lines 340 359) no Hoare annotation was computed. [2020-07-21 15:41:10,025 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 337 360) the Hoare annotation is: (let ((.cse3 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (<= 1 ~systemActive~0))) (.cse6 (= 0 ~methAndRunningLastTime~0)) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= 0 |old(~methAndRunningLastTime~0)|))) (.cse2 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 .cse2 (and .cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4)) (or .cse0 .cse5 (not (= 0 |old(~pumpRunning~0)|)) (and .cse6 .cse3 (= 0 ~pumpRunning~0) .cse4) (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 .cse6 .cse1 .cse5 .cse2))) [2020-07-21 15:41:10,025 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 337 360) no Hoare annotation was computed. [2020-07-21 15:41:10,025 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 337 360) no Hoare annotation was computed. [2020-07-21 15:41:10,025 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 80 109) no Hoare annotation was computed. [2020-07-21 15:41:10,025 INFO L268 CegarLoopResult]: For program point L94(lines 94 98) no Hoare annotation was computed. [2020-07-21 15:41:10,026 INFO L271 CegarLoopResult]: At program point L94-1(lines 94 98) the Hoare annotation is: true [2020-07-21 15:41:10,026 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 80 109) the Hoare annotation is: true [2020-07-21 15:41:10,026 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 15:41:10,026 INFO L271 CegarLoopResult]: At program point L90-2(lines 90 104) the Hoare annotation is: true [2020-07-21 15:41:10,026 INFO L271 CegarLoopResult]: At program point L86(line 86) the Hoare annotation is: true [2020-07-21 15:41:10,026 INFO L268 CegarLoopResult]: For program point L86-1(line 86) no Hoare annotation was computed. [2020-07-21 15:41:10,027 INFO L271 CegarLoopResult]: At program point L105(lines 80 109) the Hoare annotation is: true [2020-07-21 15:41:10,027 INFO L268 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-07-21 15:41:10,027 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 266 274) the Hoare annotation is: true [2020-07-21 15:41:10,027 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 266 274) no Hoare annotation was computed. [2020-07-21 15:41:10,028 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 266 274) no Hoare annotation was computed. [2020-07-21 15:41:10,028 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 230 241) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (<= 1 ~pumpRunning~0)) (not (<= 2 |old(~waterLevel~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0))) [2020-07-21 15:41:10,028 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 230 241) no Hoare annotation was computed. [2020-07-21 15:41:10,028 INFO L268 CegarLoopResult]: For program point L234-1(lines 230 241) no Hoare annotation was computed. [2020-07-21 15:41:10,028 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 137 143) no Hoare annotation was computed. [2020-07-21 15:41:10,028 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 137 143) the Hoare annotation is: true [2020-07-21 15:41:10,028 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,028 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~methaneLevelCritical~0) (= 0 ~methAndRunningLastTime~0) (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 15:41:10,028 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 15:41:10,029 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:41:10,029 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 530 537) no Hoare annotation was computed. [2020-07-21 15:41:10,029 INFO L264 CegarLoopResult]: At program point startSystemENTRY(lines 530 537) the Hoare annotation is: (let ((.cse0 (<= 1 ~systemActive~0)) (.cse1 (not (<= 1 |old(~systemActive~0)|)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0)) .cse0 .cse1) (or (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0)) .cse0 .cse1))) [2020-07-21 15:41:10,029 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 530 537) no Hoare annotation was computed. [2020-07-21 15:41:10,029 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 369 393) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 15:41:10,029 INFO L264 CegarLoopResult]: At program point L383(line 383) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~2) (= 0 ~pumpRunning~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 15:41:10,029 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 369 393) no Hoare annotation was computed. [2020-07-21 15:41:10,030 INFO L264 CegarLoopResult]: At program point L379(line 379) the Hoare annotation is: (let ((.cse0 (not (= 0 ~methAndRunningLastTime~0))) (.cse1 (not (<= 1 ~waterLevel~0))) (.cse2 (not (<= 1 ~systemActive~0))) (.cse3 (not (= 0 |old(~pumpRunning~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 (not (<= ~waterLevel~0 1))) (or .cse0 .cse1 .cse2 .cse3 (= 0 ~pumpRunning~0)))) [2020-07-21 15:41:10,030 INFO L268 CegarLoopResult]: For program point L377(lines 377 385) no Hoare annotation was computed. [2020-07-21 15:41:10,030 INFO L264 CegarLoopResult]: At program point L375(line 375) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 15:41:10,030 INFO L268 CegarLoopResult]: For program point L375-1(line 375) no Hoare annotation was computed. [2020-07-21 15:41:10,030 INFO L268 CegarLoopResult]: For program point L373(lines 373 390) no Hoare annotation was computed. [2020-07-21 15:41:10,030 INFO L264 CegarLoopResult]: At program point L388(line 388) the Hoare annotation is: (or (not (= 0 ~methAndRunningLastTime~0)) (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 15:41:10,030 INFO L268 CegarLoopResult]: For program point L388-1(lines 369 393) no Hoare annotation was computed. [2020-07-21 15:41:10,030 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 242 253) no Hoare annotation was computed. [2020-07-21 15:41:10,030 INFO L268 CegarLoopResult]: For program point L246-1(lines 242 253) no Hoare annotation was computed. [2020-07-21 15:41:10,031 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 242 253) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~waterLevel~0)| ~waterLevel~0)))) (and (or (not (= 0 ~methAndRunningLastTime~0)) .cse0 (not (= 0 ~pumpRunning~0)) (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (<= 1 ~pumpRunning~0)) (not (<= 2 |old(~waterLevel~0)|)) .cse1))) [2020-07-21 15:41:10,031 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 972 979) no Hoare annotation was computed. [2020-07-21 15:41:10,031 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 976) no Hoare annotation was computed. [2020-07-21 15:41:10,031 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 972 979) the Hoare annotation is: true [2020-07-21 15:41:10,031 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 972 979) no Hoare annotation was computed. [2020-07-21 15:41:10,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:41:10 BoogieIcfgContainer [2020-07-21 15:41:10,062 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:41:10,070 INFO L168 Benchmark]: Toolchain (without parser) took 21253.84 ms. Allocated memory was 146.8 MB in the beginning and 486.0 MB in the end (delta: 339.2 MB). Free memory was 103.2 MB in the beginning and 356.8 MB in the end (delta: -253.6 MB). Peak memory consumption was 351.9 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,073 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,076 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.51 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 173.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,077 INFO L168 Benchmark]: Boogie Preprocessor took 91.70 ms. Allocated memory is still 205.5 MB. Free memory was 173.4 MB in the beginning and 169.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,078 INFO L168 Benchmark]: RCFGBuilder took 1167.34 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 169.4 MB in the beginning and 192.1 MB in the end (delta: -22.7 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,081 INFO L168 Benchmark]: TraceAbstraction took 19300.70 ms. Allocated memory was 235.4 MB in the beginning and 486.0 MB in the end (delta: 250.6 MB). Free memory was 192.1 MB in the beginning and 356.8 MB in the end (delta: -164.7 MB). Peak memory consumption was 352.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:10,086 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.51 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.8 MB in the beginning and 173.4 MB in the end (delta: -70.6 MB). Peak memory consumption was 23.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.70 ms. Allocated memory is still 205.5 MB. Free memory was 173.4 MB in the beginning and 169.4 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1167.34 ms. Allocated memory was 205.5 MB in the beginning and 235.4 MB in the end (delta: 29.9 MB). Free memory was 169.4 MB in the beginning and 192.1 MB in the end (delta: -22.7 MB). Peak memory consumption was 81.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 19300.70 ms. Allocated memory was 235.4 MB in the beginning and 486.0 MB in the end (delta: 250.6 MB). Free memory was 192.1 MB in the beginning and 356.8 MB in the end (delta: -164.7 MB). Peak memory consumption was 352.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 976]: 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: 549]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || (((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || ((((0 == methAndRunningLastTime && 1 <= waterLevel) && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 80]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 548]: Loop Invariant Derived loop invariant: ((((!(\old(waterLevel) <= 1) || !(0 == \old(methAndRunningLastTime))) || !(0 == \old(pumpRunning))) || !(\old(methaneLevelCritical) == 0)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 244 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.6s, OverallIterations: 14, TraceHistogramMax: 2, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2247 SDtfs, 1368 SDslu, 3607 SDs, 0 SdLazy, 2443 SolverSat, 541 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1996 GetRequests, 1926 SyntacticMatches, 8 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1602occurred 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: 0.6s AutomataMinimizationTime, 14 MinimizatonAttempts, 591 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 62 LocationsWithAnnotation, 3175 PreInvPairs, 3276 NumberOfFragments, 1690 HoareAnnotationTreeSize, 3175 FomulaSimplifications, 6118 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 62 FomulaSimplificationsInter, 16744 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1688 NumberOfCodeBlocks, 1464 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1966 ConstructedInterpolants, 0 QuantifiedInterpolants, 436364 SizeOfPredicates, 36 NumberOfNonLiveVariables, 11455 ConjunctsInSsa, 138 ConjunctsInUnsatCore, 16 InterpolantComputations, 14 PerfectInterpolantSequences, 509/512 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...