/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_spec4_product56.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:42:31,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:42:31,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:42:31,426 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:42:31,427 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:42:31,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:42:31,431 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:42:31,440 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:42:31,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:42:31,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:42:31,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:42:31,447 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:42:31,447 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:42:31,449 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:42:31,452 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:42:31,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:42:31,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:42:31,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:42:31,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:42:31,463 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:42:31,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:42:31,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:42:31,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:42:31,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:42:31,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:42:31,473 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:42:31,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:42:31,475 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:42:31,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:42:31,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:42:31,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:42:31,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:42:31,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:42:31,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:42:31,483 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:42:31,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:42:31,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:42:31,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:42:31,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:42:31,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:42:31,486 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:42:31,486 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 15:42:31,515 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:42:31,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:42:31,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:42:31,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:42:31,517 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:42:31,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:42:31,518 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:42:31,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:42:31,518 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:42:31,518 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:42:31,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:42:31,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:42:31,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:42:31,520 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:42:31,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:42:31,520 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:42:31,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:42:31,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:42:31,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:42:31,521 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:42:31,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:42:31,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:42:31,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:42:31,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:42:31,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:42:31,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:42:31,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:31,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:42:31,523 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:42:31,523 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 15:42:31,803 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:42:31,815 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:42:31,818 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:42:31,820 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:42:31,820 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:42:31,821 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-07-21 15:42:31,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb792b85/7a242d6ff4e3402198a902fb0dc78679/FLAG8c32c7166 [2020-07-21 15:42:32,356 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:42:32,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product56.cil.c [2020-07-21 15:42:32,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb792b85/7a242d6ff4e3402198a902fb0dc78679/FLAG8c32c7166 [2020-07-21 15:42:32,719 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5cb792b85/7a242d6ff4e3402198a902fb0dc78679 [2020-07-21 15:42:32,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:42:32,733 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:42:32,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:42:32,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:42:32,739 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:42:32,740 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:32" (1/1) ... [2020-07-21 15:42:32,743 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2aede21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:32, skipping insertion in model container [2020-07-21 15:42:32,743 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:42:32" (1/1) ... [2020-07-21 15:42:32,753 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:42:32,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:42:33,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:42:33,278 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:42:33,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:42:33,424 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:42:33,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33 WrapperNode [2020-07-21 15:42:33,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:42:33,425 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:42:33,425 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:42:33,425 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:42:33,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,500 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,506 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (1/1) ... [2020-07-21 15:42:33,513 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:42:33,514 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:42:33,514 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:42:33,514 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:42:33,515 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (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 15:42:33,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:42:33,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:42:33,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:42:33,587 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:42:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:42:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:42:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:42:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-21 15:42:33,588 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-21 15:42:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-21 15:42:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 15:42:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:42:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:42:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:42:33,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:42:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:42:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:42:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:42:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-21 15:42:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:42:33,590 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:42:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:42:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:42:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:42:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:42:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:42:33,591 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-21 15:42:33,592 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-21 15:42:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:42:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:42:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:42:33,593 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:42:33,593 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:42:33,594 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:42:33,595 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:42:33,596 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:42:33,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:42:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:42:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:42:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:42:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:42:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:42:33,598 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:42:33,599 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:42:33,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:42:34,696 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:42:34,697 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:42:34,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:34 BoogieIcfgContainer [2020-07-21 15:42:34,702 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:42:34,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:42:34,703 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:42:34,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:42:34,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:42:32" (1/3) ... [2020-07-21 15:42:34,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b0ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:34, skipping insertion in model container [2020-07-21 15:42:34,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:42:33" (2/3) ... [2020-07-21 15:42:34,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310b0ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:42:34, skipping insertion in model container [2020-07-21 15:42:34,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:42:34" (3/3) ... [2020-07-21 15:42:34,709 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2020-07-21 15:42:34,719 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:42:34,727 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:42:34,741 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:42:34,767 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:42:34,767 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:42:34,768 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:42:34,768 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:42:34,768 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:42:34,768 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:42:34,768 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:42:34,769 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:42:34,790 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states. [2020-07-21 15:42:34,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-21 15:42:34,800 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:34,801 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:34,802 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:34,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:34,808 INFO L82 PathProgramCache]: Analyzing trace with hash -559348317, now seen corresponding path program 1 times [2020-07-21 15:42:34,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:34,817 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [388753690] [2020-07-21 15:42:34,817 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 15:42:35,247 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:35,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:35,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:42:35,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:35,301 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 15:42:35,301 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:35,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [388753690] [2020-07-21 15:42:35,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:35,304 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:42:35,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842206103] [2020-07-21 15:42:35,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:42:35,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:35,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:42:35,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:42:35,333 INFO L87 Difference]: Start difference. First operand 199 states. Second operand 2 states. [2020-07-21 15:42:35,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:35,380 INFO L93 Difference]: Finished difference Result 312 states and 385 transitions. [2020-07-21 15:42:35,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:42:35,381 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2020-07-21 15:42:35,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:35,396 INFO L225 Difference]: With dead ends: 312 [2020-07-21 15:42:35,396 INFO L226 Difference]: Without dead ends: 156 [2020-07-21 15:42:35,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:42:35,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2020-07-21 15:42:35,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2020-07-21 15:42:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2020-07-21 15:42:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 184 transitions. [2020-07-21 15:42:35,465 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 184 transitions. Word has length 46 [2020-07-21 15:42:35,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:35,466 INFO L479 AbstractCegarLoop]: Abstraction has 156 states and 184 transitions. [2020-07-21 15:42:35,466 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:42:35,466 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 184 transitions. [2020-07-21 15:42:35,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 15:42:35,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:35,471 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:35,684 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:35,684 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:35,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:35,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1620740414, now seen corresponding path program 1 times [2020-07-21 15:42:35,686 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:35,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1612427300] [2020-07-21 15:42:35,687 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 15:42:36,046 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:36,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:36,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:42:36,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:36,088 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 15:42:36,088 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:36,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1612427300] [2020-07-21 15:42:36,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:36,089 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:36,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045118805] [2020-07-21 15:42:36,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:36,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:36,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:36,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:36,092 INFO L87 Difference]: Start difference. First operand 156 states and 184 transitions. Second operand 3 states. [2020-07-21 15:42:36,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:36,116 INFO L93 Difference]: Finished difference Result 251 states and 295 transitions. [2020-07-21 15:42:36,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:36,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 15:42:36,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:36,120 INFO L225 Difference]: With dead ends: 251 [2020-07-21 15:42:36,120 INFO L226 Difference]: Without dead ends: 147 [2020-07-21 15:42:36,122 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:36,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2020-07-21 15:42:36,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 147. [2020-07-21 15:42:36,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2020-07-21 15:42:36,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 172 transitions. [2020-07-21 15:42:36,143 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 172 transitions. Word has length 47 [2020-07-21 15:42:36,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:36,144 INFO L479 AbstractCegarLoop]: Abstraction has 147 states and 172 transitions. [2020-07-21 15:42:36,144 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:36,144 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 172 transitions. [2020-07-21 15:42:36,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:42:36,149 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:36,149 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 15:42:36,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:36,365 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:36,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:36,366 INFO L82 PathProgramCache]: Analyzing trace with hash -396868600, now seen corresponding path program 1 times [2020-07-21 15:42:36,366 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:36,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [745586010] [2020-07-21 15:42:36,368 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 15:42:36,683 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:36,684 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:36,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 15:42:36,693 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:36,715 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 15:42:36,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:36,716 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [745586010] [2020-07-21 15:42:36,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:36,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:36,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560917657] [2020-07-21 15:42:36,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:36,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:36,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:36,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:36,719 INFO L87 Difference]: Start difference. First operand 147 states and 172 transitions. Second operand 3 states. [2020-07-21 15:42:36,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:36,750 INFO L93 Difference]: Finished difference Result 389 states and 467 transitions. [2020-07-21 15:42:36,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:36,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-21 15:42:36,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:36,755 INFO L225 Difference]: With dead ends: 389 [2020-07-21 15:42:36,755 INFO L226 Difference]: Without dead ends: 266 [2020-07-21 15:42:36,757 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 15:42:36,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2020-07-21 15:42:36,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 260. [2020-07-21 15:42:36,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 260 states. [2020-07-21 15:42:36,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 311 transitions. [2020-07-21 15:42:36,787 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 311 transitions. Word has length 52 [2020-07-21 15:42:36,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:36,787 INFO L479 AbstractCegarLoop]: Abstraction has 260 states and 311 transitions. [2020-07-21 15:42:36,787 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:36,788 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 311 transitions. [2020-07-21 15:42:36,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-07-21 15:42:36,791 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:36,794 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 15:42:37,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:37,010 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:37,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:37,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1317156286, now seen corresponding path program 1 times [2020-07-21 15:42:37,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:37,012 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1776000890] [2020-07-21 15:42:37,012 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 15:42:37,370 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:37,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:37,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 678 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:42:37,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:37,440 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 15:42:37,441 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:37,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1776000890] [2020-07-21 15:42:37,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:37,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:37,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252326762] [2020-07-21 15:42:37,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:37,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:37,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:37,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:37,443 INFO L87 Difference]: Start difference. First operand 260 states and 311 transitions. Second operand 6 states. [2020-07-21 15:42:37,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:37,766 INFO L93 Difference]: Finished difference Result 713 states and 895 transitions. [2020-07-21 15:42:37,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:37,767 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2020-07-21 15:42:37,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:37,771 INFO L225 Difference]: With dead ends: 713 [2020-07-21 15:42:37,771 INFO L226 Difference]: Without dead ends: 477 [2020-07-21 15:42:37,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:42:37,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2020-07-21 15:42:37,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 477. [2020-07-21 15:42:37,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 477 states. [2020-07-21 15:42:37,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 596 transitions. [2020-07-21 15:42:37,833 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 596 transitions. Word has length 57 [2020-07-21 15:42:37,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:37,834 INFO L479 AbstractCegarLoop]: Abstraction has 477 states and 596 transitions. [2020-07-21 15:42:37,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:37,834 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 596 transitions. [2020-07-21 15:42:37,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 15:42:37,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:37,840 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] [2020-07-21 15:42:38,054 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:38,055 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:38,056 INFO L82 PathProgramCache]: Analyzing trace with hash -1811637144, now seen corresponding path program 1 times [2020-07-21 15:42:38,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:38,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981006600] [2020-07-21 15:42:38,057 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 15:42:38,314 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:38,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:38,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 15:42:38,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:38,339 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 15:42:38,339 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:38,340 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981006600] [2020-07-21 15:42:38,340 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:38,340 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:38,340 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930714592] [2020-07-21 15:42:38,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:38,341 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:38,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:38,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:38,342 INFO L87 Difference]: Start difference. First operand 477 states and 596 transitions. Second operand 3 states. [2020-07-21 15:42:38,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:38,440 INFO L93 Difference]: Finished difference Result 1071 states and 1419 transitions. [2020-07-21 15:42:38,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:38,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 15:42:38,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:38,445 INFO L225 Difference]: With dead ends: 1071 [2020-07-21 15:42:38,445 INFO L226 Difference]: Without dead ends: 618 [2020-07-21 15:42:38,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 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 15:42:38,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-07-21 15:42:38,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 605. [2020-07-21 15:42:38,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 605 states. [2020-07-21 15:42:38,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 605 states to 605 states and 769 transitions. [2020-07-21 15:42:38,483 INFO L78 Accepts]: Start accepts. Automaton has 605 states and 769 transitions. Word has length 61 [2020-07-21 15:42:38,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:38,483 INFO L479 AbstractCegarLoop]: Abstraction has 605 states and 769 transitions. [2020-07-21 15:42:38,484 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:38,484 INFO L276 IsEmpty]: Start isEmpty. Operand 605 states and 769 transitions. [2020-07-21 15:42:38,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-21 15:42:38,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:38,487 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 15:42:38,699 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:38,700 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:38,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:38,701 INFO L82 PathProgramCache]: Analyzing trace with hash 2053206357, now seen corresponding path program 1 times [2020-07-21 15:42:38,701 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:38,702 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [395223803] [2020-07-21 15:42:38,703 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 15:42:38,966 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:38,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:38,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-21 15:42:38,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:39,002 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-21 15:42:39,002 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:39,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [395223803] [2020-07-21 15:42:39,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:39,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:42:39,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320036002] [2020-07-21 15:42:39,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:42:39,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:39,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:42:39,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:42:39,005 INFO L87 Difference]: Start difference. First operand 605 states and 769 transitions. Second operand 3 states. [2020-07-21 15:42:39,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:39,088 INFO L93 Difference]: Finished difference Result 996 states and 1267 transitions. [2020-07-21 15:42:39,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:42:39,088 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 118 [2020-07-21 15:42:39,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:39,091 INFO L225 Difference]: With dead ends: 996 [2020-07-21 15:42:39,092 INFO L226 Difference]: Without dead ends: 415 [2020-07-21 15:42:39,094 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 116 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 15:42:39,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-07-21 15:42:39,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 402. [2020-07-21 15:42:39,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-21 15:42:39,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 498 transitions. [2020-07-21 15:42:39,114 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 498 transitions. Word has length 118 [2020-07-21 15:42:39,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:39,114 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 498 transitions. [2020-07-21 15:42:39,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:42:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 498 transitions. [2020-07-21 15:42:39,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 15:42:39,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:39,117 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:39,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:39,331 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:39,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:39,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1688312402, now seen corresponding path program 1 times [2020-07-21 15:42:39,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:39,332 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945856561] [2020-07-21 15:42:39,332 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 15:42:39,663 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:39,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:39,672 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:39,677 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:39,756 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-21 15:42:39,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:39,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945856561] [2020-07-21 15:42:39,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:39,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:39,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953621334] [2020-07-21 15:42:39,758 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:39,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:39,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:39,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:39,759 INFO L87 Difference]: Start difference. First operand 402 states and 498 transitions. Second operand 6 states. [2020-07-21 15:42:40,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:40,027 INFO L93 Difference]: Finished difference Result 411 states and 506 transitions. [2020-07-21 15:42:40,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:42:40,027 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 133 [2020-07-21 15:42:40,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:40,032 INFO L225 Difference]: With dead ends: 411 [2020-07-21 15:42:40,032 INFO L226 Difference]: Without dead ends: 408 [2020-07-21 15:42:40,034 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:42:40,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2020-07-21 15:42:40,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 402. [2020-07-21 15:42:40,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-21 15:42:40,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 496 transitions. [2020-07-21 15:42:40,086 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 496 transitions. Word has length 133 [2020-07-21 15:42:40,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:40,087 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 496 transitions. [2020-07-21 15:42:40,087 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:40,087 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 496 transitions. [2020-07-21 15:42:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 15:42:40,091 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:40,093 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:40,294 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:40,295 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:40,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:40,296 INFO L82 PathProgramCache]: Analyzing trace with hash -629504636, now seen corresponding path program 1 times [2020-07-21 15:42:40,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:40,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092934108] [2020-07-21 15:42:40,297 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 15:42:40,571 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:40,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:40,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 15:42:40,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 8 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-07-21 15:42:40,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:42:40,967 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 21 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-07-21 15:42:40,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092934108] [2020-07-21 15:42:40,967 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:42:40,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 15:42:40,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312146406] [2020-07-21 15:42:40,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:40,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:40,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:40,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:40,970 INFO L87 Difference]: Start difference. First operand 402 states and 496 transitions. Second operand 6 states. [2020-07-21 15:42:41,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:41,646 INFO L93 Difference]: Finished difference Result 842 states and 1061 transitions. [2020-07-21 15:42:41,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 15:42:41,649 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2020-07-21 15:42:41,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:41,658 INFO L225 Difference]: With dead ends: 842 [2020-07-21 15:42:41,658 INFO L226 Difference]: Without dead ends: 464 [2020-07-21 15:42:41,661 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 287 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 15:42:41,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2020-07-21 15:42:41,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 424. [2020-07-21 15:42:41,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 424 states. [2020-07-21 15:42:41,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 493 transitions. [2020-07-21 15:42:41,694 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 493 transitions. Word has length 146 [2020-07-21 15:42:41,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:41,699 INFO L479 AbstractCegarLoop]: Abstraction has 424 states and 493 transitions. [2020-07-21 15:42:41,699 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 493 transitions. [2020-07-21 15:42:41,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 15:42:41,704 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:41,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:41,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:41,919 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:41,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:41,920 INFO L82 PathProgramCache]: Analyzing trace with hash -1930733102, now seen corresponding path program 1 times [2020-07-21 15:42:41,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:41,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1614176847] [2020-07-21 15:42:41,921 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 15:42:42,216 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:42,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:42,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 902 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:42,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:42,265 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 15:42:42,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:42,266 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1614176847] [2020-07-21 15:42:42,266 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:42,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:42,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483612127] [2020-07-21 15:42:42,267 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:42,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:42,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:42,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:42,268 INFO L87 Difference]: Start difference. First operand 424 states and 493 transitions. Second operand 6 states. [2020-07-21 15:42:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:42,317 INFO L93 Difference]: Finished difference Result 834 states and 987 transitions. [2020-07-21 15:42:42,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:42,324 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-21 15:42:42,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:42,328 INFO L225 Difference]: With dead ends: 834 [2020-07-21 15:42:42,329 INFO L226 Difference]: Without dead ends: 434 [2020-07-21 15:42:42,331 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 150 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 15:42:42,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2020-07-21 15:42:42,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 434. [2020-07-21 15:42:42,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2020-07-21 15:42:42,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 504 transitions. [2020-07-21 15:42:42,361 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 504 transitions. Word has length 155 [2020-07-21 15:42:42,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:42,361 INFO L479 AbstractCegarLoop]: Abstraction has 434 states and 504 transitions. [2020-07-21 15:42:42,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:42,361 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 504 transitions. [2020-07-21 15:42:42,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 15:42:42,364 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:42,364 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:42,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:42,579 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:42,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:42,580 INFO L82 PathProgramCache]: Analyzing trace with hash 497525520, now seen corresponding path program 1 times [2020-07-21 15:42:42,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:42,581 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2113713882] [2020-07-21 15:42:42,582 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 15:42:42,798 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:42,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:42,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-21 15:42:42,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:42,837 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-21 15:42:42,837 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:42,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2113713882] [2020-07-21 15:42:42,838 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:42,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 15:42:42,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130714809] [2020-07-21 15:42:42,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 15:42:42,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:42,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 15:42:42,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 15:42:42,839 INFO L87 Difference]: Start difference. First operand 434 states and 504 transitions. Second operand 5 states. [2020-07-21 15:42:42,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:42,870 INFO L93 Difference]: Finished difference Result 833 states and 990 transitions. [2020-07-21 15:42:42,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 15:42:42,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 155 [2020-07-21 15:42:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:42,874 INFO L225 Difference]: With dead ends: 833 [2020-07-21 15:42:42,874 INFO L226 Difference]: Without dead ends: 423 [2020-07-21 15:42:42,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 151 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 15:42:42,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2020-07-21 15:42:42,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 423. [2020-07-21 15:42:42,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 423 states. [2020-07-21 15:42:42,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 490 transitions. [2020-07-21 15:42:42,899 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 490 transitions. Word has length 155 [2020-07-21 15:42:42,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:42,899 INFO L479 AbstractCegarLoop]: Abstraction has 423 states and 490 transitions. [2020-07-21 15:42:42,899 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 15:42:42,899 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 490 transitions. [2020-07-21 15:42:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-07-21 15:42:42,901 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:42,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:43,114 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:43,115 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:43,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:43,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1961598929, now seen corresponding path program 1 times [2020-07-21 15:42:43,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:43,117 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1167848814] [2020-07-21 15:42:43,117 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 15:42:43,304 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 1 check-sat command(s) [2020-07-21 15:42:43,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:43,307 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 15:42:43,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:43,375 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:43,375 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:43,376 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1167848814] [2020-07-21 15:42:43,376 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:43,376 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:43,376 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768724141] [2020-07-21 15:42:43,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:43,377 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:43,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:43,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:43,377 INFO L87 Difference]: Start difference. First operand 423 states and 490 transitions. Second operand 6 states. [2020-07-21 15:42:44,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:44,433 INFO L93 Difference]: Finished difference Result 1210 states and 1483 transitions. [2020-07-21 15:42:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 15:42:44,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2020-07-21 15:42:44,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:44,443 INFO L225 Difference]: With dead ends: 1210 [2020-07-21 15:42:44,443 INFO L226 Difference]: Without dead ends: 811 [2020-07-21 15:42:44,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 151 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 15:42:44,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 811 states. [2020-07-21 15:42:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 811 to 782. [2020-07-21 15:42:44,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 782 states. [2020-07-21 15:42:44,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 782 states to 782 states and 922 transitions. [2020-07-21 15:42:44,500 INFO L78 Accepts]: Start accepts. Automaton has 782 states and 922 transitions. Word has length 155 [2020-07-21 15:42:44,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:44,501 INFO L479 AbstractCegarLoop]: Abstraction has 782 states and 922 transitions. [2020-07-21 15:42:44,501 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:44,501 INFO L276 IsEmpty]: Start isEmpty. Operand 782 states and 922 transitions. [2020-07-21 15:42:44,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-07-21 15:42:44,504 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:44,504 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:44,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:44,719 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:44,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:44,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1745517035, now seen corresponding path program 1 times [2020-07-21 15:42:44,719 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:44,720 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571925245] [2020-07-21 15:42:44,720 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 15:42:45,006 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:45,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:45,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 912 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 15:42:45,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:45,096 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:42:45,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:42:45,548 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-21 15:42:45,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571925245] [2020-07-21 15:42:45,548 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:42:45,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2020-07-21 15:42:45,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209233093] [2020-07-21 15:42:45,550 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 15:42:45,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:45,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 15:42:45,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2020-07-21 15:42:45,550 INFO L87 Difference]: Start difference. First operand 782 states and 922 transitions. Second operand 12 states. [2020-07-21 15:42:47,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:47,613 INFO L93 Difference]: Finished difference Result 2102 states and 2649 transitions. [2020-07-21 15:42:47,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 15:42:47,614 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 159 [2020-07-21 15:42:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:47,626 INFO L225 Difference]: With dead ends: 2102 [2020-07-21 15:42:47,626 INFO L226 Difference]: Without dead ends: 1344 [2020-07-21 15:42:47,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 306 SyntacticMatches, 6 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=148, Invalid=358, Unknown=0, NotChecked=0, Total=506 [2020-07-21 15:42:47,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2020-07-21 15:42:47,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1012. [2020-07-21 15:42:47,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1012 states. [2020-07-21 15:42:47,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1182 transitions. [2020-07-21 15:42:47,707 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1182 transitions. Word has length 159 [2020-07-21 15:42:47,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:47,708 INFO L479 AbstractCegarLoop]: Abstraction has 1012 states and 1182 transitions. [2020-07-21 15:42:47,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 15:42:47,708 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1182 transitions. [2020-07-21 15:42:47,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 15:42:47,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:47,713 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 15:42:47,927 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:47,928 INFO L427 AbstractCegarLoop]: === Iteration 13 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:47,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:47,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1602854524, now seen corresponding path program 2 times [2020-07-21 15:42:47,929 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:47,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [533480054] [2020-07-21 15:42:47,930 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 15:42:48,207 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:48,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:48,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 1077 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 15:42:48,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:48,302 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 15:42:48,302 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 15:42:48,376 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 114 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 15:42:48,377 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 15:42:48,702 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:42:48,816 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 15:42:48,816 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:42:48,869 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 15:42:48,870 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:42:48,889 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 15:42:48,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:42:48,938 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 15:42:49,204 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 50 proven. 32 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2020-07-21 15:42:49,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [533480054] [2020-07-21 15:42:49,207 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 15:42:49,207 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-07-21 15:42:49,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015255169] [2020-07-21 15:42:49,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-21 15:42:49,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:49,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-21 15:42:49,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2020-07-21 15:42:49,211 INFO L87 Difference]: Start difference. First operand 1012 states and 1182 transitions. Second operand 16 states. [2020-07-21 15:42:51,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:51,887 INFO L93 Difference]: Finished difference Result 2927 states and 3689 transitions. [2020-07-21 15:42:51,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-07-21 15:42:51,887 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 229 [2020-07-21 15:42:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:51,904 INFO L225 Difference]: With dead ends: 2927 [2020-07-21 15:42:51,904 INFO L226 Difference]: Without dead ends: 2036 [2020-07-21 15:42:51,908 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 448 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-07-21 15:42:51,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2036 states. [2020-07-21 15:42:52,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2036 to 1490. [2020-07-21 15:42:52,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1490 states. [2020-07-21 15:42:52,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1490 states to 1490 states and 1731 transitions. [2020-07-21 15:42:52,012 INFO L78 Accepts]: Start accepts. Automaton has 1490 states and 1731 transitions. Word has length 229 [2020-07-21 15:42:52,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:52,013 INFO L479 AbstractCegarLoop]: Abstraction has 1490 states and 1731 transitions. [2020-07-21 15:42:52,013 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-21 15:42:52,014 INFO L276 IsEmpty]: Start isEmpty. Operand 1490 states and 1731 transitions. [2020-07-21 15:42:52,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 15:42:52,019 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:42:52,020 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 15:42:52,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:52,237 INFO L427 AbstractCegarLoop]: === Iteration 14 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:42:52,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:42:52,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1302818758, now seen corresponding path program 1 times [2020-07-21 15:42:52,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:42:52,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [796350057] [2020-07-21 15:42:52,239 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 15:42:52,524 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:42:52,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:42:52,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 15:42:52,533 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:42:52,594 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-07-21 15:42:52,594 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:42:52,595 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [796350057] [2020-07-21 15:42:52,595 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:42:52,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:42:52,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753660303] [2020-07-21 15:42:52,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:42:52,597 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:42:52,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:42:52,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:42:52,597 INFO L87 Difference]: Start difference. First operand 1490 states and 1731 transitions. Second operand 6 states. [2020-07-21 15:42:52,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:42:52,651 INFO L93 Difference]: Finished difference Result 1935 states and 2243 transitions. [2020-07-21 15:42:52,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:42:52,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 229 [2020-07-21 15:42:52,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:42:52,653 INFO L225 Difference]: With dead ends: 1935 [2020-07-21 15:42:52,653 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 15:42:52,658 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 224 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 15:42:52,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 15:42:52,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 15:42:52,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 15:42:52,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 15:42:52,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 229 [2020-07-21 15:42:52,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:42:52,659 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 15:42:52,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:42:52,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 15:42:52,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 15:42:52,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:42:52,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 15:42:55,219 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2020-07-21 15:42:55,670 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 35 [2020-07-21 15:42:55,826 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 31 [2020-07-21 15:42:56,079 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2020-07-21 15:42:56,279 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 19 [2020-07-21 15:42:56,524 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 33 [2020-07-21 15:42:56,996 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 29 [2020-07-21 15:42:57,236 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2020-07-21 15:42:57,427 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 39 [2020-07-21 15:42:57,635 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 25 [2020-07-21 15:42:57,938 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2020-07-21 15:42:58,322 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 30 [2020-07-21 15:42:58,460 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 20 [2020-07-21 15:42:58,517 INFO L268 CegarLoopResult]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-07-21 15:42:58,517 INFO L268 CegarLoopResult]: For program point L382-1(lines 382 386) no Hoare annotation was computed. [2020-07-21 15:42:58,517 INFO L268 CegarLoopResult]: For program point L377(line 377) no Hoare annotation was computed. [2020-07-21 15:42:58,517 INFO L268 CegarLoopResult]: For program point L376-2(lines 376 397) no Hoare annotation was computed. [2020-07-21 15:42:58,517 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 351 406) no Hoare annotation was computed. [2020-07-21 15:42:58,517 INFO L268 CegarLoopResult]: For program point L398(lines 375 399) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 351 406) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 351 406) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point L439(lines 439 443) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point L439-1(lines 439 443) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 407 466) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 15:42:58,518 INFO L268 CegarLoopResult]: For program point L433-2(lines 433 458) no Hoare annotation was computed. [2020-07-21 15:42:58,519 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 407 466) no Hoare annotation was computed. [2020-07-21 15:42:58,519 INFO L268 CegarLoopResult]: For program point L459(lines 432 460) no Hoare annotation was computed. [2020-07-21 15:42:58,519 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 407 466) no Hoare annotation was computed. [2020-07-21 15:42:58,519 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 15:42:58,519 INFO L268 CegarLoopResult]: For program point L452-1(line 452) no Hoare annotation was computed. [2020-07-21 15:42:58,519 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 994 1000) the Hoare annotation is: true [2020-07-21 15:42:58,520 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 994 1000) no Hoare annotation was computed. [2020-07-21 15:42:58,520 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 1001 1009) no Hoare annotation was computed. [2020-07-21 15:42:58,520 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 1001 1009) the Hoare annotation is: true [2020-07-21 15:42:58,520 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 1001 1009) no Hoare annotation was computed. [2020-07-21 15:42:58,520 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 739 763) the Hoare annotation is: true [2020-07-21 15:42:58,520 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 739 763) no Hoare annotation was computed. [2020-07-21 15:42:58,520 INFO L264 CegarLoopResult]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 0 ~systemActive~0)) .cse2) (or .cse1 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-21 15:42:58,520 INFO L268 CegarLoopResult]: For program point L751(lines 751 757) no Hoare annotation was computed. [2020-07-21 15:42:58,521 INFO L264 CegarLoopResult]: At program point L749(line 749) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse2 (not (= 0 ~pumpRunning~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= 0 ~systemActive~0)) .cse2) (or .cse1 (not (<= 2 ~waterLevel~0)) (not (<= 1 ~pumpRunning~0))))) [2020-07-21 15:42:58,521 INFO L268 CegarLoopResult]: For program point L749-1(line 749) no Hoare annotation was computed. [2020-07-21 15:42:58,521 INFO L268 CegarLoopResult]: For program point L747(lines 747 760) no Hoare annotation was computed. [2020-07-21 15:42:58,521 INFO L268 CegarLoopResult]: For program point L747-1(lines 739 763) no Hoare annotation was computed. [2020-07-21 15:42:58,521 INFO L271 CegarLoopResult]: At program point L745(line 745) the Hoare annotation is: true [2020-07-21 15:42:58,521 INFO L268 CegarLoopResult]: For program point L745-1(line 745) no Hoare annotation was computed. [2020-07-21 15:42:58,522 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 840 862) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,522 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 840 862) no Hoare annotation was computed. [2020-07-21 15:42:58,522 INFO L264 CegarLoopResult]: At program point L852(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,522 INFO L264 CegarLoopResult]: At program point L852-1(line 852) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,522 INFO L268 CegarLoopResult]: For program point L850(lines 850 857) no Hoare annotation was computed. [2020-07-21 15:42:58,522 INFO L268 CegarLoopResult]: For program point L850-1(lines 850 857) no Hoare annotation was computed. [2020-07-21 15:42:58,522 INFO L268 CegarLoopResult]: For program point L848(line 848) no Hoare annotation was computed. [2020-07-21 15:42:58,523 INFO L264 CegarLoopResult]: At program point L847(line 847) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,523 INFO L264 CegarLoopResult]: At program point L846(line 846) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,523 INFO L264 CegarLoopResult]: At program point L846-1(line 846) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,523 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 840 862) no Hoare annotation was computed. [2020-07-21 15:42:58,523 INFO L268 CegarLoopResult]: For program point L801(line 801) no Hoare annotation was computed. [2020-07-21 15:42:58,523 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 796 819) no Hoare annotation was computed. [2020-07-21 15:42:58,523 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 796 819) no Hoare annotation was computed. [2020-07-21 15:42:58,523 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 796 819) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L814(line 814) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L813(line 813) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L812(line 812) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L811(line 811) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L810(line 810) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L809(line 809) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L808(line 808) no Hoare annotation was computed. [2020-07-21 15:42:58,524 INFO L268 CegarLoopResult]: For program point L807(line 807) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point L806(line 806) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point L805(line 805) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point L804(line 804) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point L803(line 803) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point L802(line 802) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point stopSystemEXIT(lines 275 289) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L264 CegarLoopResult]: At program point L281(line 281) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|))) (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 ~waterLevel~0)) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) [2020-07-21 15:42:58,525 INFO L268 CegarLoopResult]: For program point L279(lines 279 285) no Hoare annotation was computed. [2020-07-21 15:42:58,525 INFO L264 CegarLoopResult]: At program point stopSystemENTRY(lines 275 289) the Hoare annotation is: (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or (not (<= 1 |old(~pumpRunning~0)|)) (not (<= 2 ~waterLevel~0)) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) [2020-07-21 15:42:58,526 INFO L268 CegarLoopResult]: For program point stopSystemFINAL(lines 275 289) no Hoare annotation was computed. [2020-07-21 15:42:58,526 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 192 200) no Hoare annotation was computed. [2020-07-21 15:42:58,526 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 192 200) the Hoare annotation is: true [2020-07-21 15:42:58,526 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 192 200) no Hoare annotation was computed. [2020-07-21 15:42:58,526 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 256 274) the Hoare annotation is: true [2020-07-21 15:42:58,526 INFO L268 CegarLoopResult]: For program point L265(lines 265 269) no Hoare annotation was computed. [2020-07-21 15:42:58,526 INFO L271 CegarLoopResult]: At program point L263(line 263) the Hoare annotation is: true [2020-07-21 15:42:58,526 INFO L268 CegarLoopResult]: For program point L265-2(lines 265 269) no Hoare annotation was computed. [2020-07-21 15:42:58,526 INFO L268 CegarLoopResult]: For program point L263-1(line 263) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 256 274) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 256 274) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point L220(lines 220 228) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point L220-2(lines 220 228) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point L208(lines 208 216) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 201 236) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point L208-2(lines 208 216) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point L231(line 231) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 201 236) no Hoare annotation was computed. [2020-07-21 15:42:58,527 INFO L268 CegarLoopResult]: For program point L231-1(line 231) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 201 236) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 987 993) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 987 993) the Hoare annotation is: true [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 305 350) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 305 350) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 305 350) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point L638(lines 638 645) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 618 663) no Hoare annotation was computed. [2020-07-21 15:42:58,528 INFO L268 CegarLoopResult]: For program point L632(lines 632 652) no Hoare annotation was computed. [2020-07-21 15:42:58,529 INFO L268 CegarLoopResult]: For program point L632-1(lines 632 652) no Hoare annotation was computed. [2020-07-21 15:42:58,529 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 618 663) no Hoare annotation was computed. [2020-07-21 15:42:58,529 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 618 663) no Hoare annotation was computed. [2020-07-21 15:42:58,529 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 827 836) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,529 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 827 836) no Hoare annotation was computed. [2020-07-21 15:42:58,529 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 827 836) no Hoare annotation was computed. [2020-07-21 15:42:58,529 INFO L271 CegarLoopResult]: At program point isMethaneAlarmENTRY(lines 181 191) the Hoare annotation is: true [2020-07-21 15:42:58,529 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 181 191) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L271 CegarLoopResult]: At program point L186(line 186) the Hoare annotation is: true [2020-07-21 15:42:58,530 INFO L268 CegarLoopResult]: For program point L186-1(line 186) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 181 191) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 173 180) the Hoare annotation is: (let ((.cse0 (not (<= 1 |old(~pumpRunning~0)|))) (.cse1 (<= |old(~pumpRunning~0)| ~pumpRunning~0))) (and (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) .cse0 .cse1) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1))) [2020-07-21 15:42:58,530 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 173 180) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 173 180) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L268 CegarLoopResult]: For program point L956(lines 956 962) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 952 965) no Hoare annotation was computed. [2020-07-21 15:42:58,530 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 952 965) the Hoare annotation is: true [2020-07-21 15:42:58,531 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 952 965) no Hoare annotation was computed. [2020-07-21 15:42:58,531 INFO L264 CegarLoopResult]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,531 INFO L268 CegarLoopResult]: For program point L159-1(lines 140 164) no Hoare annotation was computed. [2020-07-21 15:42:58,531 INFO L264 CegarLoopResult]: At program point L154(line 154) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,531 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 140 164) no Hoare annotation was computed. [2020-07-21 15:42:58,531 INFO L264 CegarLoopResult]: At program point L150(line 150) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,531 INFO L268 CegarLoopResult]: For program point L148(lines 148 156) no Hoare annotation was computed. [2020-07-21 15:42:58,532 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 140 164) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:42:58,532 INFO L264 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,532 INFO L268 CegarLoopResult]: For program point L146-1(line 146) no Hoare annotation was computed. [2020-07-21 15:42:58,532 INFO L268 CegarLoopResult]: For program point L144(lines 144 161) no Hoare annotation was computed. [2020-07-21 15:42:58,532 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 80 86) no Hoare annotation was computed. [2020-07-21 15:42:58,532 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 80 86) the Hoare annotation is: true [2020-07-21 15:42:58,532 INFO L264 CegarLoopResult]: At program point testENTRY(lines 668 735) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (and (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,533 INFO L264 CegarLoopResult]: At program point L700(line 700) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:42:58,533 INFO L268 CegarLoopResult]: For program point L698(lines 698 704) no Hoare annotation was computed. [2020-07-21 15:42:58,533 INFO L268 CegarLoopResult]: For program point L698-1(lines 698 704) no Hoare annotation was computed. [2020-07-21 15:42:58,533 INFO L268 CegarLoopResult]: For program point testFINAL(lines 668 735) no Hoare annotation was computed. [2020-07-21 15:42:58,533 INFO L264 CegarLoopResult]: At program point L725(lines 678 727) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:42:58,533 INFO L264 CegarLoopResult]: At program point L690(line 690) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:42:58,534 INFO L268 CegarLoopResult]: For program point L688(lines 688 694) no Hoare annotation was computed. [2020-07-21 15:42:58,534 INFO L268 CegarLoopResult]: For program point L688-1(lines 688 694) no Hoare annotation was computed. [2020-07-21 15:42:58,534 INFO L268 CegarLoopResult]: For program point L680(lines 680 684) no Hoare annotation was computed. [2020-07-21 15:42:58,534 INFO L264 CegarLoopResult]: At program point L728(lines 677 729) the Hoare annotation is: (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|))) [2020-07-21 15:42:58,534 INFO L264 CegarLoopResult]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 (<= 1 ~pumpRunning~0)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:42:58,534 INFO L268 CegarLoopResult]: For program point L716(lines 716 722) no Hoare annotation was computed. [2020-07-21 15:42:58,535 INFO L264 CegarLoopResult]: At program point L716-1(lines 708 723) the Hoare annotation is: (let ((.cse2 (<= 1 ~systemActive~0)) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= 1 ~waterLevel~0) .cse0 .cse1 .cse2) (and (<= 2 ~waterLevel~0) .cse1 .cse2 (<= 1 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (and (= 0 ~systemActive~0) .cse0 .cse1 (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:42:58,535 INFO L268 CegarLoopResult]: For program point L679(lines 678 727) no Hoare annotation was computed. [2020-07-21 15:42:58,535 INFO L264 CegarLoopResult]: At program point L710(line 710) the Hoare annotation is: (let ((.cse0 (<= test_~splverifierCounter~0 0))) (or (not (<= |old(~waterLevel~0)| 1)) (not (= 0 |old(~pumpRunning~0)|)) (and (<= 2 ~waterLevel~0) .cse0 (<= 1 ~pumpRunning~0)) (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) .cse0) (not (<= 1 |old(~waterLevel~0)|)) (not (<= 1 |old(~systemActive~0)|)))) [2020-07-21 15:42:58,535 INFO L268 CegarLoopResult]: For program point L708(lines 708 723) no Hoare annotation was computed. [2020-07-21 15:42:58,535 INFO L268 CegarLoopResult]: For program point testEXIT(lines 668 735) no Hoare annotation was computed. [2020-07-21 15:42:58,535 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 572 617) no Hoare annotation was computed. [2020-07-21 15:42:58,535 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 572 617) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 572 617) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point L592(lines 592 599) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point L586(lines 586 606) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point L586-1(lines 586 606) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 966 974) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 966 974) the Hoare annotation is: true [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 966 974) no Hoare annotation was computed. [2020-07-21 15:42:58,536 INFO L268 CegarLoopResult]: For program point L928(lines 928 936) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point L928-2(lines 928 936) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 920 942) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 920 942) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 920 942) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 469 571) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point L539(lines 517 540) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point L498(lines 498 514) no Hoare annotation was computed. [2020-07-21 15:42:58,537 INFO L268 CegarLoopResult]: For program point L558(lines 558 565) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point L519(lines 518 538) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 469 571) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point L550-1(line 550) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point L515(lines 515 556) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point L534(line 534) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point L534-1(line 534) no Hoare annotation was computed. [2020-07-21 15:42:58,538 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 469 571) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point L493(lines 493 497) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point L557(lines 557 568) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point L520(lines 520 524) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point L518-2(lines 518 538) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 977 986) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 977 986) no Hoare annotation was computed. [2020-07-21 15:42:58,539 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 977 986) no Hoare annotation was computed. [2020-07-21 15:42:58,540 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,540 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) [2020-07-21 15:42:58,540 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,540 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 165 172) no Hoare annotation was computed. [2020-07-21 15:42:58,540 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 165 172) no Hoare annotation was computed. [2020-07-21 15:42:58,540 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 165 172) the Hoare annotation is: (or (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0))) [2020-07-21 15:42:58,540 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 237 255) no Hoare annotation was computed. [2020-07-21 15:42:58,541 INFO L268 CegarLoopResult]: For program point L246(lines 246 250) no Hoare annotation was computed. [2020-07-21 15:42:58,541 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 237 255) the Hoare annotation is: true [2020-07-21 15:42:58,541 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 237 255) no Hoare annotation was computed. [2020-07-21 15:42:58,541 INFO L271 CegarLoopResult]: At program point L244(line 244) the Hoare annotation is: true [2020-07-21 15:42:58,541 INFO L268 CegarLoopResult]: For program point L246-2(lines 246 250) no Hoare annotation was computed. [2020-07-21 15:42:58,541 INFO L268 CegarLoopResult]: For program point L244-1(line 244) no Hoare annotation was computed. [2020-07-21 15:42:58,541 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 943 951) the Hoare annotation is: true [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 943 951) no Hoare annotation was computed. [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 943 951) no Hoare annotation was computed. [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,542 INFO L271 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 899 910) the Hoare annotation is: true [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point L903-1(lines 899 910) no Hoare annotation was computed. [2020-07-21 15:42:58,542 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 899 910) no Hoare annotation was computed. [2020-07-21 15:42:58,543 INFO L271 CegarLoopResult]: At program point isMethaneLevelCriticalENTRY(lines 911 919) the Hoare annotation is: true [2020-07-21 15:42:58,543 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 911 919) no Hoare annotation was computed. [2020-07-21 15:42:58,543 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 911 919) no Hoare annotation was computed. [2020-07-21 15:42:58,543 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= ~waterLevel~0 |old(~waterLevel~0)|) (<= |old(~pumpRunning~0)| ~pumpRunning~0) (<= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse0 .cse1 .cse2))) [2020-07-21 15:42:58,543 INFO L268 CegarLoopResult]: For program point L60(lines 59 78) no Hoare annotation was computed. [2020-07-21 15:42:58,543 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 56 79) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (and .cse4 (= 0 ~pumpRunning~0) .cse5)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse4 (<= |old(~pumpRunning~0)| ~pumpRunning~0) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse1 .cse2)))) [2020-07-21 15:42:58,543 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 56 79) no Hoare annotation was computed. [2020-07-21 15:42:58,543 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 56 79) no Hoare annotation was computed. [2020-07-21 15:42:58,543 INFO L264 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (let ((.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse3 (= 0 ~pumpRunning~0)) (.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (not (<= 1 |old(~pumpRunning~0)|)) .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 (<= ~waterLevel~0 1) .cse4) .cse5 .cse6) (or (not (= 0 ~systemActive~0)) .cse5 .cse6) (or .cse0 (and .cse1 .cse3 .cse4) .cse5 .cse2))) [2020-07-21 15:42:58,543 INFO L264 CegarLoopResult]: At program point L67(lines 67 73) the Hoare annotation is: (let ((.cse4 (<= ~waterLevel~0 |old(~waterLevel~0)|)) (.cse5 (= 0 ~pumpRunning~0)) (.cse6 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse3 (not (<= 1 ~systemActive~0))) (.cse0 (and .cse4 .cse5 .cse6)) (.cse1 (not (= 0 |old(~pumpRunning~0)|))) (.cse2 (not (<= 1 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2) (or .cse3 (not (<= 1 |old(~pumpRunning~0)|)) (and .cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse5) (not (<= 2 |old(~waterLevel~0)|))) (or .cse3 .cse0 .cse1 (and (<= 2 ~waterLevel~0) .cse4 (<= 1 ~pumpRunning~0) .cse6) .cse2)))) [2020-07-21 15:42:58,543 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 766 795) no Hoare annotation was computed. [2020-07-21 15:42:58,544 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 766 795) the Hoare annotation is: true [2020-07-21 15:42:58,544 INFO L271 CegarLoopResult]: At program point L791(lines 766 795) the Hoare annotation is: true [2020-07-21 15:42:58,544 INFO L268 CegarLoopResult]: For program point L787(line 787) no Hoare annotation was computed. [2020-07-21 15:42:58,544 INFO L268 CegarLoopResult]: For program point L780(lines 780 784) no Hoare annotation was computed. [2020-07-21 15:42:58,544 INFO L271 CegarLoopResult]: At program point L780-1(lines 780 784) the Hoare annotation is: true [2020-07-21 15:42:58,544 INFO L268 CegarLoopResult]: For program point L777(line 777) no Hoare annotation was computed. [2020-07-21 15:42:58,544 INFO L271 CegarLoopResult]: At program point L776-2(lines 776 790) the Hoare annotation is: true [2020-07-21 15:42:58,544 INFO L271 CegarLoopResult]: At program point L772(line 772) the Hoare annotation is: true [2020-07-21 15:42:58,544 INFO L268 CegarLoopResult]: For program point L772-1(line 772) no Hoare annotation was computed. [2020-07-21 15:42:58,545 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 875 886) 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 15:42:58,545 INFO L268 CegarLoopResult]: For program point L879-1(lines 875 886) no Hoare annotation was computed. [2020-07-21 15:42:58,545 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 875 886) no Hoare annotation was computed. [2020-07-21 15:42:58,545 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 820 826) no Hoare annotation was computed. [2020-07-21 15:42:58,545 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 820 826) the Hoare annotation is: true [2020-07-21 15:42:58,545 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,545 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= 1 ~waterLevel~0) (= 0 ~pumpRunning~0) (<= ~waterLevel~0 1) (<= 1 ~systemActive~0)) [2020-07-21 15:42:58,545 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 15:42:58,546 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 15:42:58,546 INFO L268 CegarLoopResult]: For program point startSystemEXIT(lines 290 297) no Hoare annotation was computed. [2020-07-21 15:42:58,546 INFO L271 CegarLoopResult]: At program point startSystemENTRY(lines 290 297) the Hoare annotation is: true [2020-07-21 15:42:58,546 INFO L268 CegarLoopResult]: For program point startSystemFINAL(lines 290 297) no Hoare annotation was computed. [2020-07-21 15:42:58,546 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 88 112) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 15:42:58,546 INFO L268 CegarLoopResult]: For program point L96(lines 96 104) no Hoare annotation was computed. [2020-07-21 15:42:58,546 INFO L264 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) [2020-07-21 15:42:58,546 INFO L268 CegarLoopResult]: For program point L94-1(line 94) no Hoare annotation was computed. [2020-07-21 15:42:58,546 INFO L268 CegarLoopResult]: For program point L92(lines 92 109) no Hoare annotation was computed. [2020-07-21 15:42:58,547 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 88 112) no Hoare annotation was computed. [2020-07-21 15:42:58,547 INFO L264 CegarLoopResult]: At program point L107(line 107) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 15:42:58,547 INFO L268 CegarLoopResult]: For program point L107-1(lines 88 112) no Hoare annotation was computed. [2020-07-21 15:42:58,547 INFO L264 CegarLoopResult]: At program point L102(line 102) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (= 0 ~pumpRunning~0) (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 15:42:58,547 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (<= 1 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|))) [2020-07-21 15:42:58,547 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 887 898) no Hoare annotation was computed. [2020-07-21 15:42:58,547 INFO L268 CegarLoopResult]: For program point L891-1(lines 887 898) no Hoare annotation was computed. [2020-07-21 15:42:58,548 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 887 898) the Hoare annotation is: (let ((.cse4 (<= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse0 (not (<= 1 ~systemActive~0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (not (= 0 ~pumpRunning~0))) (.cse6 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (and (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse4))) (and (or .cse0 .cse1 .cse2 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) (and (<= ~waterLevel~0 1) .cse4) .cse5 .cse1 .cse2) (or .cse0 (not (<= 1 ~pumpRunning~0)) .cse6 .cse3) (or .cse5 .cse1 .cse6 .cse3)))) [2020-07-21 15:42:58,548 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 864 871) no Hoare annotation was computed. [2020-07-21 15:42:58,548 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 868) no Hoare annotation was computed. [2020-07-21 15:42:58,548 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 864 871) the Hoare annotation is: true [2020-07-21 15:42:58,548 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 864 871) no Hoare annotation was computed. [2020-07-21 15:42:58,548 INFO L264 CegarLoopResult]: At program point L128(line 128) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,548 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 114 138) no Hoare annotation was computed. [2020-07-21 15:42:58,549 INFO L264 CegarLoopResult]: At program point L124(line 124) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (and (<= 1 processEnvironment__wrappee__lowWaterSensor_~tmp~1) (<= |old(~pumpRunning~0)| ~pumpRunning~0))) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,549 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 114 138) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)))) [2020-07-21 15:42:58,549 INFO L268 CegarLoopResult]: For program point L122(lines 122 130) no Hoare annotation was computed. [2020-07-21 15:42:58,549 INFO L264 CegarLoopResult]: At program point L120(line 120) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|)) (<= |old(~pumpRunning~0)| ~pumpRunning~0)) (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,549 INFO L268 CegarLoopResult]: For program point L120-1(line 120) no Hoare annotation was computed. [2020-07-21 15:42:58,549 INFO L268 CegarLoopResult]: For program point L118(lines 118 135) no Hoare annotation was computed. [2020-07-21 15:42:58,549 INFO L264 CegarLoopResult]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (<= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0)) (or .cse0 .cse1 (not (<= 1 |old(~pumpRunning~0)|))))) [2020-07-21 15:42:58,549 INFO L268 CegarLoopResult]: For program point L133-1(lines 114 138) no Hoare annotation was computed. [2020-07-21 15:42:58,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:42:58 BoogieIcfgContainer [2020-07-21 15:42:58,567 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:42:58,568 INFO L168 Benchmark]: Toolchain (without parser) took 25837.10 ms. Allocated memory was 136.3 MB in the beginning and 563.1 MB in the end (delta: 426.8 MB). Free memory was 99.2 MB in the beginning and 98.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 428.5 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:58,569 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory is still 118.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 15:42:58,570 INFO L168 Benchmark]: CACSL2BoogieTranslator took 689.66 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 98.7 MB in the beginning and 168.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:58,570 INFO L168 Benchmark]: Boogie Preprocessor took 88.52 ms. Allocated memory is still 200.8 MB. Free memory was 168.2 MB in the beginning and 163.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:58,571 INFO L168 Benchmark]: RCFGBuilder took 1187.94 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 163.9 MB in the beginning and 191.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:58,572 INFO L168 Benchmark]: TraceAbstraction took 23863.79 ms. Allocated memory was 229.6 MB in the beginning and 563.1 MB in the end (delta: 333.4 MB). Free memory was 190.2 MB in the beginning and 98.0 MB in the end (delta: 92.2 MB). Peak memory consumption was 426.2 MB. Max. memory is 7.1 GB. [2020-07-21 15:42:58,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory is still 118.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 689.66 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 98.7 MB in the beginning and 168.2 MB in the end (delta: -69.5 MB). Peak memory consumption was 27.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.52 ms. Allocated memory is still 200.8 MB. Free memory was 168.2 MB in the beginning and 163.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1187.94 ms. Allocated memory was 200.8 MB in the beginning and 229.6 MB in the end (delta: 28.8 MB). Free memory was 163.9 MB in the beginning and 191.7 MB in the end (delta: -27.7 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23863.79 ms. Allocated memory was 229.6 MB in the beginning and 563.1 MB in the end (delta: 333.4 MB). Free memory was 190.2 MB in the beginning and 98.0 MB in the end (delta: 92.2 MB). Peak memory consumption was 426.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 868]: 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: 776]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) <= 1) || !(0 == \old(pumpRunning))) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - InvariantResult [Line: 766]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: (((((!(\old(waterLevel) <= 1) || (((1 <= waterLevel && 0 == pumpRunning) && splverifierCounter <= 0) && 1 <= systemActive)) || (((2 <= waterLevel && splverifierCounter <= 0) && 1 <= systemActive) && 1 <= pumpRunning)) || !(0 == \old(pumpRunning))) || (((0 == systemActive && 0 == pumpRunning) && splverifierCounter <= 0) && \old(waterLevel) <= waterLevel)) || !(1 <= \old(waterLevel))) || !(1 <= \old(systemActive)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 43 procedures, 255 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.1s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2840 SDtfs, 2613 SDslu, 4704 SDs, 0 SdLazy, 4662 SolverSat, 1545 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2310 GetRequests, 2213 SyntacticMatches, 10 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1490occurred 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: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 985 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 71 LocationsWithAnnotation, 2904 PreInvPairs, 2983 NumberOfFragments, 1568 HoareAnnotationTreeSize, 2904 FomulaSimplifications, 16575 FormulaSimplificationTreeSizeReduction, 1.5s HoareSimplificationTime, 71 FomulaSimplificationsInter, 11999 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 1742 NumberOfCodeBlocks, 1588 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 2259 ConstructedInterpolants, 0 QuantifiedInterpolants, 569007 SizeOfPredicates, 47 NumberOfNonLiveVariables, 11383 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 17 InterpolantComputations, 11 PerfectInterpolantSequences, 637/724 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...