/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 10:47:04,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 10:47:04,506 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 10:47:04,525 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 10:47:04,526 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 10:47:04,528 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 10:47:04,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 10:47:04,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 10:47:04,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 10:47:04,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 10:47:04,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 10:47:04,549 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 10:47:04,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 10:47:04,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 10:47:04,554 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 10:47:04,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 10:47:04,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 10:47:04,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 10:47:04,559 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 10:47:04,563 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 10:47:04,568 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 10:47:04,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 10:47:04,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 10:47:04,574 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 10:47:04,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 10:47:04,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 10:47:04,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 10:47:04,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 10:47:04,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 10:47:04,581 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 10:47:04,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 10:47:04,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 10:47:04,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 10:47:04,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 10:47:04,585 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 10:47:04,585 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 10:47:04,586 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 10:47:04,586 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 10:47:04,586 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 10:47:04,587 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 10:47:04,588 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 10:47:04,589 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 [2020-07-07 10:47:04,626 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 10:47:04,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 10:47:04,630 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 10:47:04,630 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 10:47:04,630 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 10:47:04,631 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 10:47:04,631 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 10:47:04,631 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 10:47:04,631 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 10:47:04,633 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 10:47:04,633 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 10:47:04,633 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 10:47:04,634 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 10:47:04,634 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 10:47:04,634 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 10:47:04,634 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 10:47:04,634 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 10:47:04,635 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 10:47:04,635 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 10:47:04,635 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 10:47:04,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 10:47:04,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 10:47:04,636 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 10:47:04,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 10:47:04,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 10:47:04,637 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 10:47:04,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 10:47:04,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 10:47:04,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 10:47:04,638 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 10:47:04,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 10:47:04,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 10:47:04,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 10:47:04,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 10:47:04,939 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 10:47:04,940 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-07-07 10:47:05,008 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45823e53/e8aeeb9ae18d4970aca3e448ff2bff72/FLAG94e33191b [2020-07-07 10:47:05,481 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 10:47:05,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product49.cil.c [2020-07-07 10:47:05,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45823e53/e8aeeb9ae18d4970aca3e448ff2bff72/FLAG94e33191b [2020-07-07 10:47:05,865 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d45823e53/e8aeeb9ae18d4970aca3e448ff2bff72 [2020-07-07 10:47:05,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 10:47:05,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 10:47:05,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 10:47:05,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 10:47:05,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 10:47:05,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:47:05" (1/1) ... [2020-07-07 10:47:05,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@452e714f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:05, skipping insertion in model container [2020-07-07 10:47:05,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 10:47:05" (1/1) ... [2020-07-07 10:47:05,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 10:47:05,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 10:47:06,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:47:06,380 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 10:47:06,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 10:47:06,514 INFO L208 MainTranslator]: Completed translation [2020-07-07 10:47:06,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06 WrapperNode [2020-07-07 10:47:06,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 10:47:06,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 10:47:06,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 10:47:06,516 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 10:47:06,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,564 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,565 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,613 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (1/1) ... [2020-07-07 10:47:06,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 10:47:06,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 10:47:06,620 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 10:47:06,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 10:47:06,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (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 [2020-07-07 10:47:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 10:47:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 10:47:06,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 10:47:06,693 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 10:47:06,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 10:47:06,694 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 10:47:06,694 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 10:47:06,695 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 10:47:06,695 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 10:47:06,696 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 10:47:06,696 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 10:47:06,697 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 10:47:06,697 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 10:47:06,697 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:47:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 10:47:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 10:47:06,698 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 10:47:06,699 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 10:47:06,700 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 10:47:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 10:47:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 10:47:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 10:47:06,701 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 10:47:06,702 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 10:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 10:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 10:47:06,703 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 10:47:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 10:47:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 10:47:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 10:47:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 10:47:06,703 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 10:47:06,704 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 10:47:06,705 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 10:47:06,706 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 10:47:06,707 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 10:47:06,708 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 10:47:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 10:47:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 10:47:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 10:47:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 10:47:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 10:47:06,709 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 10:47:07,799 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 10:47:07,800 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 10:47:07,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:47:07 BoogieIcfgContainer [2020-07-07 10:47:07,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 10:47:07,806 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 10:47:07,806 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 10:47:07,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 10:47:07,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 10:47:05" (1/3) ... [2020-07-07 10:47:07,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cb35f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:47:07, skipping insertion in model container [2020-07-07 10:47:07,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 10:47:06" (2/3) ... [2020-07-07 10:47:07,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31cb35f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 10:47:07, skipping insertion in model container [2020-07-07 10:47:07,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 10:47:07" (3/3) ... [2020-07-07 10:47:07,814 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product49.cil.c [2020-07-07 10:47:07,825 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 10:47:07,833 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 10:47:07,847 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 10:47:07,872 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 10:47:07,872 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 10:47:07,872 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 10:47:07,872 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 10:47:07,873 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 10:47:07,873 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 10:47:07,873 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 10:47:07,873 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 10:47:07,898 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states. [2020-07-07 10:47:07,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-07 10:47:07,908 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:07,909 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] [2020-07-07 10:47:07,910 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:07,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:07,916 INFO L82 PathProgramCache]: Analyzing trace with hash 916136138, now seen corresponding path program 1 times [2020-07-07 10:47:07,924 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:07,924 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154901099] [2020-07-07 10:47:07,925 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:08,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,659 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:08,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154901099] [2020-07-07 10:47:08,741 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:08,741 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 10:47:08,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614264723] [2020-07-07 10:47:08,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 10:47:08,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:08,766 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 10:47:08,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:47:08,769 INFO L87 Difference]: Start difference. First operand 171 states. Second operand 3 states. [2020-07-07 10:47:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:09,916 INFO L93 Difference]: Finished difference Result 297 states and 388 transitions. [2020-07-07 10:47:09,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 10:47:09,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-07 10:47:09,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:09,932 INFO L225 Difference]: With dead ends: 297 [2020-07-07 10:47:09,932 INFO L226 Difference]: Without dead ends: 160 [2020-07-07 10:47:09,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 10:47:09,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2020-07-07 10:47:10,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 128. [2020-07-07 10:47:10,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-07 10:47:10,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 150 transitions. [2020-07-07 10:47:10,023 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 150 transitions. Word has length 46 [2020-07-07 10:47:10,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:10,024 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 150 transitions. [2020-07-07 10:47:10,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 10:47:10,024 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 150 transitions. [2020-07-07 10:47:10,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-07 10:47:10,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:10,028 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] [2020-07-07 10:47:10,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 10:47:10,028 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:10,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:10,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1104947330, now seen corresponding path program 1 times [2020-07-07 10:47:10,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:10,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492177877] [2020-07-07 10:47:10,029 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,368 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:10,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:10,413 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492177877] [2020-07-07 10:47:10,413 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:10,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 10:47:10,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334957210] [2020-07-07 10:47:10,415 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 10:47:10,415 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:10,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 10:47:10,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 10:47:10,416 INFO L87 Difference]: Start difference. First operand 128 states and 150 transitions. Second operand 4 states. [2020-07-07 10:47:10,863 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:11,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:11,701 INFO L93 Difference]: Finished difference Result 230 states and 279 transitions. [2020-07-07 10:47:11,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:11,702 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 47 [2020-07-07 10:47:11,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:11,705 INFO L225 Difference]: With dead ends: 230 [2020-07-07 10:47:11,705 INFO L226 Difference]: Without dead ends: 144 [2020-07-07 10:47:11,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 10:47:11,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-07-07 10:47:11,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-07-07 10:47:11,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-07 10:47:11,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 138 transitions. [2020-07-07 10:47:11,748 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 138 transitions. Word has length 47 [2020-07-07 10:47:11,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:11,748 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 138 transitions. [2020-07-07 10:47:11,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 10:47:11,748 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 138 transitions. [2020-07-07 10:47:11,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-07 10:47:11,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:11,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:11,751 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 10:47:11,751 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:11,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:11,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1852359913, now seen corresponding path program 1 times [2020-07-07 10:47:11,752 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:11,752 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078575206] [2020-07-07 10:47:11,752 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:11,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,103 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:12,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:12,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:12,188 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078575206] [2020-07-07 10:47:12,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:12,188 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 10:47:12,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597378898] [2020-07-07 10:47:12,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:12,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:12,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:12,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-07 10:47:12,190 INFO L87 Difference]: Start difference. First operand 119 states and 138 transitions. Second operand 8 states. [2020-07-07 10:47:12,645 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:12,933 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:13,176 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:13,437 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:14,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:14,581 INFO L93 Difference]: Finished difference Result 239 states and 293 transitions. [2020-07-07 10:47:14,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 10:47:14,582 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-07-07 10:47:14,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:14,584 INFO L225 Difference]: With dead ends: 239 [2020-07-07 10:47:14,584 INFO L226 Difference]: Without dead ends: 144 [2020-07-07 10:47:14,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:14,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-07-07 10:47:14,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 119. [2020-07-07 10:47:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-07-07 10:47:14,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 137 transitions. [2020-07-07 10:47:14,622 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 137 transitions. Word has length 51 [2020-07-07 10:47:14,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:14,622 INFO L479 AbstractCegarLoop]: Abstraction has 119 states and 137 transitions. [2020-07-07 10:47:14,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 137 transitions. [2020-07-07 10:47:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-07 10:47:14,625 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:14,625 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:14,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 10:47:14,625 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:14,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:14,626 INFO L82 PathProgramCache]: Analyzing trace with hash 458129541, now seen corresponding path program 1 times [2020-07-07 10:47:14,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:14,626 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000574452] [2020-07-07 10:47:14,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,920 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:14,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:14,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:15,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:15,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000574452] [2020-07-07 10:47:15,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:15,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 10:47:15,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290473644] [2020-07-07 10:47:15,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:15,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:15,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:15,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 10:47:15,015 INFO L87 Difference]: Start difference. First operand 119 states and 137 transitions. Second operand 6 states. [2020-07-07 10:47:15,425 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:16,575 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:17,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:17,241 INFO L93 Difference]: Finished difference Result 331 states and 409 transitions. [2020-07-07 10:47:17,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 10:47:17,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 64 [2020-07-07 10:47:17,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:17,249 INFO L225 Difference]: With dead ends: 331 [2020-07-07 10:47:17,249 INFO L226 Difference]: Without dead ends: 236 [2020-07-07 10:47:17,251 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2020-07-07 10:47:17,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 195. [2020-07-07 10:47:17,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 195 states. [2020-07-07 10:47:17,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 222 transitions. [2020-07-07 10:47:17,299 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 222 transitions. Word has length 64 [2020-07-07 10:47:17,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:17,300 INFO L479 AbstractCegarLoop]: Abstraction has 195 states and 222 transitions. [2020-07-07 10:47:17,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:17,300 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 222 transitions. [2020-07-07 10:47:17,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2020-07-07 10:47:17,302 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:17,302 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:17,302 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 10:47:17,302 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:17,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:17,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1170867649, now seen corresponding path program 1 times [2020-07-07 10:47:17,303 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:17,303 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858403488] [2020-07-07 10:47:17,303 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,655 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:17,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:17,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:17,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858403488] [2020-07-07 10:47:17,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 10:47:17,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 10:47:17,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136100154] [2020-07-07 10:47:17,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 10:47:17,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:17,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 10:47:17,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:17,765 INFO L87 Difference]: Start difference. First operand 195 states and 222 transitions. Second operand 12 states. [2020-07-07 10:47:18,309 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:18,629 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:18,872 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:19,132 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:19,670 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:20,496 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:20,792 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:21,038 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:21,285 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:21,557 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:21,813 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 10:47:23,113 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:23,463 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:24,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:24,030 INFO L93 Difference]: Finished difference Result 677 states and 879 transitions. [2020-07-07 10:47:24,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-07 10:47:24,030 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 78 [2020-07-07 10:47:24,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:24,040 INFO L225 Difference]: With dead ends: 677 [2020-07-07 10:47:24,041 INFO L226 Difference]: Without dead ends: 506 [2020-07-07 10:47:24,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=155, Invalid=547, Unknown=0, NotChecked=0, Total=702 [2020-07-07 10:47:24,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2020-07-07 10:47:24,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 448. [2020-07-07 10:47:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 448 states. [2020-07-07 10:47:24,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 529 transitions. [2020-07-07 10:47:24,185 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 529 transitions. Word has length 78 [2020-07-07 10:47:24,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:24,186 INFO L479 AbstractCegarLoop]: Abstraction has 448 states and 529 transitions. [2020-07-07 10:47:24,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 10:47:24,186 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 529 transitions. [2020-07-07 10:47:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 10:47:24,191 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:24,191 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] [2020-07-07 10:47:24,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 10:47:24,192 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:24,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:24,192 INFO L82 PathProgramCache]: Analyzing trace with hash 524664374, now seen corresponding path program 1 times [2020-07-07 10:47:24,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:24,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684997110] [2020-07-07 10:47:24,193 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,458 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:24,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,728 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-07 10:47:24,728 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684997110] [2020-07-07 10:47:24,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577845434] [2020-07-07 10:47:24,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:24,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:24,921 INFO L264 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-07 10:47:24,938 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:25,071 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:25,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:25,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [13] total 17 [2020-07-07 10:47:25,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471158570] [2020-07-07 10:47:25,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 10:47:25,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:25,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 10:47:25,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2020-07-07 10:47:25,074 INFO L87 Difference]: Start difference. First operand 448 states and 529 transitions. Second operand 8 states. [2020-07-07 10:47:26,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:26,481 INFO L93 Difference]: Finished difference Result 1148 states and 1506 transitions. [2020-07-07 10:47:26,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 10:47:26,482 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 136 [2020-07-07 10:47:26,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:26,491 INFO L225 Difference]: With dead ends: 1148 [2020-07-07 10:47:26,491 INFO L226 Difference]: Without dead ends: 824 [2020-07-07 10:47:26,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 180 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2020-07-07 10:47:26,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-07 10:47:26,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 753. [2020-07-07 10:47:26,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-07-07 10:47:26,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 930 transitions. [2020-07-07 10:47:26,695 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 930 transitions. Word has length 136 [2020-07-07 10:47:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:26,696 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 930 transitions. [2020-07-07 10:47:26,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 10:47:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 930 transitions. [2020-07-07 10:47:26,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-07 10:47:26,701 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:26,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:26,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-07-07 10:47:26,915 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:26,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:26,916 INFO L82 PathProgramCache]: Analyzing trace with hash -772272072, now seen corresponding path program 1 times [2020-07-07 10:47:26,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:26,917 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164012570] [2020-07-07 10:47:26,917 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,256 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,451 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-07-07 10:47:27,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164012570] [2020-07-07 10:47:27,451 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510306183] [2020-07-07 10:47:27,452 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:27,637 INFO L264 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:27,643 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:27,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 10:47:27,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:27,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2020-07-07 10:47:27,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339202761] [2020-07-07 10:47:27,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:27,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:27,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:27,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:27,716 INFO L87 Difference]: Start difference. First operand 753 states and 930 transitions. Second operand 6 states. [2020-07-07 10:47:28,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:28,048 INFO L93 Difference]: Finished difference Result 774 states and 953 transitions. [2020-07-07 10:47:28,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 10:47:28,048 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 128 [2020-07-07 10:47:28,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:28,054 INFO L225 Difference]: With dead ends: 774 [2020-07-07 10:47:28,054 INFO L226 Difference]: Without dead ends: 771 [2020-07-07 10:47:28,055 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:47:28,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states. [2020-07-07 10:47:28,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 753. [2020-07-07 10:47:28,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 753 states. [2020-07-07 10:47:28,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 753 states to 753 states and 926 transitions. [2020-07-07 10:47:28,199 INFO L78 Accepts]: Start accepts. Automaton has 753 states and 926 transitions. Word has length 128 [2020-07-07 10:47:28,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:28,199 INFO L479 AbstractCegarLoop]: Abstraction has 753 states and 926 transitions. [2020-07-07 10:47:28,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 753 states and 926 transitions. [2020-07-07 10:47:28,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:28,202 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:28,202 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:28,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:28,416 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:28,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:28,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1678835329, now seen corresponding path program 1 times [2020-07-07 10:47:28,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:28,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741235126] [2020-07-07 10:47:28,418 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:28,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,693 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:28,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:28,850 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:28,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741235126] [2020-07-07 10:47:28,850 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229441414] [2020-07-07 10:47:28,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:29,097 INFO L264 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:29,103 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:29,178 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:29,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:29,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 10 [2020-07-07 10:47:29,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263563459] [2020-07-07 10:47:29,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:47:29,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:29,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:47:29,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-07 10:47:29,182 INFO L87 Difference]: Start difference. First operand 753 states and 926 transitions. Second operand 6 states. [2020-07-07 10:47:29,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:29,439 INFO L93 Difference]: Finished difference Result 1502 states and 1888 transitions. [2020-07-07 10:47:29,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:47:29,440 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 132 [2020-07-07 10:47:29,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:29,448 INFO L225 Difference]: With dead ends: 1502 [2020-07-07 10:47:29,448 INFO L226 Difference]: Without dead ends: 773 [2020-07-07 10:47:29,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-07 10:47:29,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2020-07-07 10:47:29,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 773. [2020-07-07 10:47:29,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 773 states. [2020-07-07 10:47:29,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 950 transitions. [2020-07-07 10:47:29,691 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 950 transitions. Word has length 132 [2020-07-07 10:47:29,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:29,693 INFO L479 AbstractCegarLoop]: Abstraction has 773 states and 950 transitions. [2020-07-07 10:47:29,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:47:29,693 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 950 transitions. [2020-07-07 10:47:29,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-07 10:47:29,696 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:29,697 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 10:47:29,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:29,913 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:29,913 INFO L82 PathProgramCache]: Analyzing trace with hash -353979135, now seen corresponding path program 1 times [2020-07-07 10:47:29,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:29,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015104869] [2020-07-07 10:47:29,914 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:29,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,259 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,520 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 4 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-07-07 10:47:30,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015104869] [2020-07-07 10:47:30,521 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648105501] [2020-07-07 10:47:30,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:30,784 INFO L264 TraceCheckSpWp]: Trace formula consists of 829 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 10:47:30,793 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:30,837 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-07 10:47:30,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:47:30,838 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 12 [2020-07-07 10:47:30,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751442091] [2020-07-07 10:47:30,839 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 10:47:30,839 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:30,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 10:47:30,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:30,840 INFO L87 Difference]: Start difference. First operand 773 states and 950 transitions. Second operand 5 states. [2020-07-07 10:47:31,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:31,060 INFO L93 Difference]: Finished difference Result 1397 states and 1752 transitions. [2020-07-07 10:47:31,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 10:47:31,061 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 132 [2020-07-07 10:47:31,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:31,069 INFO L225 Difference]: With dead ends: 1397 [2020-07-07 10:47:31,069 INFO L226 Difference]: Without dead ends: 648 [2020-07-07 10:47:31,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-07-07 10:47:31,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 648 states. [2020-07-07 10:47:31,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 648 to 648. [2020-07-07 10:47:31,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 648 states. [2020-07-07 10:47:31,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 782 transitions. [2020-07-07 10:47:31,269 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 782 transitions. Word has length 132 [2020-07-07 10:47:31,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:31,269 INFO L479 AbstractCegarLoop]: Abstraction has 648 states and 782 transitions. [2020-07-07 10:47:31,269 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 10:47:31,270 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 782 transitions. [2020-07-07 10:47:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-07-07 10:47:31,272 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:31,272 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, 1, 1, 1] [2020-07-07 10:47:31,487 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:31,488 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:31,488 INFO L82 PathProgramCache]: Analyzing trace with hash -1295460868, now seen corresponding path program 1 times [2020-07-07 10:47:31,489 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:31,489 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411212246] [2020-07-07 10:47:31,489 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:31,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,845 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:31,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:32,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:32,031 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-07 10:47:32,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411212246] [2020-07-07 10:47:32,032 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782155518] [2020-07-07 10:47:32,032 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:32,246 INFO L264 TraceCheckSpWp]: Trace formula consists of 838 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-07 10:47:32,251 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:32,326 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 10:47:32,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:32,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 14 [2020-07-07 10:47:32,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123205496] [2020-07-07 10:47:32,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-07 10:47:32,329 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:32,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-07 10:47:32,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2020-07-07 10:47:32,330 INFO L87 Difference]: Start difference. First operand 648 states and 782 transitions. Second operand 14 states. [2020-07-07 10:47:32,841 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:33,457 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:34,659 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:34,963 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:35,213 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:35,690 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 188 [2020-07-07 10:47:35,960 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:36,218 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:37,463 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:38,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:47:38,564 INFO L93 Difference]: Finished difference Result 1303 states and 1660 transitions. [2020-07-07 10:47:38,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-07 10:47:38,565 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 136 [2020-07-07 10:47:38,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:47:38,571 INFO L225 Difference]: With dead ends: 1303 [2020-07-07 10:47:38,571 INFO L226 Difference]: Without dead ends: 738 [2020-07-07 10:47:38,574 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 185 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=319, Invalid=803, Unknown=0, NotChecked=0, Total=1122 [2020-07-07 10:47:38,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2020-07-07 10:47:38,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 630. [2020-07-07 10:47:38,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 630 states. [2020-07-07 10:47:38,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 630 states to 630 states and 760 transitions. [2020-07-07 10:47:38,708 INFO L78 Accepts]: Start accepts. Automaton has 630 states and 760 transitions. Word has length 136 [2020-07-07 10:47:38,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:47:38,708 INFO L479 AbstractCegarLoop]: Abstraction has 630 states and 760 transitions. [2020-07-07 10:47:38,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-07 10:47:38,708 INFO L276 IsEmpty]: Start isEmpty. Operand 630 states and 760 transitions. [2020-07-07 10:47:38,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-07 10:47:38,711 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:47:38,712 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, 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] [2020-07-07 10:47:38,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-07 10:47:38,926 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:47:38,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:47:38,927 INFO L82 PathProgramCache]: Analyzing trace with hash -1491934830, now seen corresponding path program 2 times [2020-07-07 10:47:38,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:47:38,928 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936860781] [2020-07-07 10:47:38,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:47:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,235 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:47:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:47:39,680 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 52 proven. 27 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-07 10:47:39,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936860781] [2020-07-07 10:47:39,681 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493974585] [2020-07-07 10:47:39,681 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:47:40,123 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-07-07 10:47:40,124 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-07 10:47:40,130 INFO L264 TraceCheckSpWp]: Trace formula consists of 958 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-07 10:47:40,137 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:47:40,235 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-07 10:47:40,236 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 10:47:40,457 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 68 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-07 10:47:40,458 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 10:47:40,458 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 13] total 28 [2020-07-07 10:47:40,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905911028] [2020-07-07 10:47:40,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 28 states [2020-07-07 10:47:40,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:47:40,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2020-07-07 10:47:40,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=664, Unknown=0, NotChecked=0, Total=756 [2020-07-07 10:47:40,463 INFO L87 Difference]: Start difference. First operand 630 states and 760 transitions. Second operand 28 states. [2020-07-07 10:47:41,447 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 10:47:42,583 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:42,917 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:43,713 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:47:44,042 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:47:44,325 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-07-07 10:47:44,588 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:44,889 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:45,147 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:47:46,703 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-07-07 10:47:47,219 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-07-07 10:47:47,719 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 189 [2020-07-07 10:47:48,319 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:48,616 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:48,875 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 10:47:49,463 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 10:47:49,742 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 10:47:50,008 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-07-07 10:47:50,464 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-07 10:47:50,946 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-07-07 10:47:51,776 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:47:52,268 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:47:52,710 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:47:53,591 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2020-07-07 10:47:54,144 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2020-07-07 10:47:54,809 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-07-07 10:47:55,061 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 10:47:55,584 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-07-07 10:47:56,086 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 190 [2020-07-07 10:47:56,611 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-07-07 10:47:57,112 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-07 10:47:57,660 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-07-07 10:47:58,188 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 195 [2020-07-07 10:47:58,668 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 189 [2020-07-07 10:47:59,717 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 190 [2020-07-07 10:48:00,024 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:00,488 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-07-07 10:48:00,943 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-07-07 10:48:01,204 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:01,479 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 10:48:02,884 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:03,372 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:03,811 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-07-07 10:48:04,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:48:04,877 INFO L93 Difference]: Finished difference Result 1772 states and 2329 transitions. [2020-07-07 10:48:04,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-07 10:48:04,878 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 189 [2020-07-07 10:48:04,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:48:04,887 INFO L225 Difference]: With dead ends: 1772 [2020-07-07 10:48:04,887 INFO L226 Difference]: Without dead ends: 1188 [2020-07-07 10:48:04,894 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 258 SyntacticMatches, 6 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2701 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=1273, Invalid=7657, Unknown=0, NotChecked=0, Total=8930 [2020-07-07 10:48:04,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1188 states. [2020-07-07 10:48:05,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1188 to 990. [2020-07-07 10:48:05,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 990 states. [2020-07-07 10:48:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 990 states to 990 states and 1196 transitions. [2020-07-07 10:48:05,109 INFO L78 Accepts]: Start accepts. Automaton has 990 states and 1196 transitions. Word has length 189 [2020-07-07 10:48:05,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:48:05,109 INFO L479 AbstractCegarLoop]: Abstraction has 990 states and 1196 transitions. [2020-07-07 10:48:05,109 INFO L480 AbstractCegarLoop]: Interpolant automaton has 28 states. [2020-07-07 10:48:05,109 INFO L276 IsEmpty]: Start isEmpty. Operand 990 states and 1196 transitions. [2020-07-07 10:48:05,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-07 10:48:05,112 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 10:48:05,113 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, 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] [2020-07-07 10:48:05,327 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:48:05,328 INFO L427 AbstractCegarLoop]: === Iteration 12 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 10:48:05,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 10:48:05,329 INFO L82 PathProgramCache]: Analyzing trace with hash 384547988, now seen corresponding path program 1 times [2020-07-07 10:48:05,330 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 10:48:05,330 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253359814] [2020-07-07 10:48:05,330 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 10:48:05,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,608 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 10:48:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:05,941 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 39 proven. 8 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2020-07-07 10:48:05,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253359814] [2020-07-07 10:48:05,941 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82902229] [2020-07-07 10:48:05,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:48:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 10:48:06,145 INFO L264 TraceCheckSpWp]: Trace formula consists of 959 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-07 10:48:06,151 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 10:48:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-07-07 10:48:06,213 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 10:48:06,213 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [13] total 15 [2020-07-07 10:48:06,214 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44223784] [2020-07-07 10:48:06,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 10:48:06,217 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 10:48:06,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 10:48:06,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-07-07 10:48:06,218 INFO L87 Difference]: Start difference. First operand 990 states and 1196 transitions. Second operand 6 states. [2020-07-07 10:48:06,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 10:48:06,310 INFO L93 Difference]: Finished difference Result 1220 states and 1472 transitions. [2020-07-07 10:48:06,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 10:48:06,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 189 [2020-07-07 10:48:06,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 10:48:06,312 INFO L225 Difference]: With dead ends: 1220 [2020-07-07 10:48:06,313 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 10:48:06,316 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-07-07 10:48:06,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 10:48:06,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 10:48:06,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 10:48:06,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 10:48:06,317 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 189 [2020-07-07 10:48:06,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 10:48:06,317 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 10:48:06,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 10:48:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 10:48:06,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 10:48:06,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 10:48:06,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 10:48:07,189 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 242 [2020-07-07 10:48:07,726 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 244 [2020-07-07 10:48:09,486 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 242 [2020-07-07 10:48:09,634 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 243 [2020-07-07 10:48:10,652 WARN L193 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 27 [2020-07-07 10:48:11,109 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 12 [2020-07-07 10:48:11,454 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 23 [2020-07-07 10:48:11,630 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-07 10:48:11,804 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 20 [2020-07-07 10:48:11,963 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 1 [2020-07-07 10:48:12,409 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 23 [2020-07-07 10:48:12,885 WARN L193 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 21 [2020-07-07 10:48:13,064 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 20 [2020-07-07 10:48:13,474 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 184 [2020-07-07 10:48:13,673 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-07 10:48:14,216 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 25 [2020-07-07 10:48:14,731 WARN L193 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 21 [2020-07-07 10:48:14,923 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 15 [2020-07-07 10:48:15,444 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 23 [2020-07-07 10:48:15,679 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 22 [2020-07-07 10:48:15,819 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-07 10:48:16,374 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 20 [2020-07-07 10:48:16,561 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-07 10:48:17,201 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 29 [2020-07-07 10:48:17,748 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 21 [2020-07-07 10:48:17,948 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 15 [2020-07-07 10:48:18,148 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-07-07 10:48:18,351 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 22 [2020-07-07 10:48:18,535 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 20 [2020-07-07 10:48:18,685 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 12 [2020-07-07 10:48:18,816 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-07 10:48:18,992 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 20 [2020-07-07 10:48:19,332 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 23 [2020-07-07 10:48:19,731 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 23 [2020-07-07 10:48:20,271 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 17 [2020-07-07 10:48:20,495 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 17 [2020-07-07 10:48:20,721 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 17 [2020-07-07 10:48:21,034 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 13 [2020-07-07 10:48:21,323 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 20 [2020-07-07 10:48:21,498 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 20 [2020-07-07 10:48:21,660 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 1 [2020-07-07 10:48:21,836 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 20 [2020-07-07 10:48:21,841 INFO L268 CegarLoopResult]: For program point L672(lines 672 676) no Hoare annotation was computed. [2020-07-07 10:48:21,841 INFO L268 CegarLoopResult]: For program point L672-1(lines 672 676) no Hoare annotation was computed. [2020-07-07 10:48:21,841 INFO L268 CegarLoopResult]: For program point L667(line 667) no Hoare annotation was computed. [2020-07-07 10:48:21,841 INFO L268 CegarLoopResult]: For program point L666-2(lines 666 687) no Hoare annotation was computed. [2020-07-07 10:48:21,841 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeFINAL(lines 641 696) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point L688(lines 665 689) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeEXIT(lines 641 696) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_freeENTRY(lines 641 696) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point L729(lines 729 733) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point L729-1(lines 729 733) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetFINAL(lines 697 756) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point L724(line 724) no Hoare annotation was computed. [2020-07-07 10:48:21,842 INFO L268 CegarLoopResult]: For program point L723-2(lines 723 748) no Hoare annotation was computed. [2020-07-07 10:48:21,843 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetENTRY(lines 697 756) no Hoare annotation was computed. [2020-07-07 10:48:21,843 INFO L268 CegarLoopResult]: For program point L749(lines 722 750) no Hoare annotation was computed. [2020-07-07 10:48:21,843 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_resetEXIT(lines 697 756) no Hoare annotation was computed. [2020-07-07 10:48:21,843 INFO L268 CegarLoopResult]: For program point L742(line 742) no Hoare annotation was computed. [2020-07-07 10:48:21,843 INFO L268 CegarLoopResult]: For program point L742-1(line 742) no Hoare annotation was computed. [2020-07-07 10:48:21,844 INFO L271 CegarLoopResult]: At program point select_helpersFINAL(lines 546 552) the Hoare annotation is: true [2020-07-07 10:48:21,844 INFO L268 CegarLoopResult]: For program point select_helpersEXIT(lines 546 552) no Hoare annotation was computed. [2020-07-07 10:48:21,844 INFO L268 CegarLoopResult]: For program point valid_productEXIT(lines 553 561) no Hoare annotation was computed. [2020-07-07 10:48:21,844 INFO L271 CegarLoopResult]: At program point valid_productENTRY(lines 553 561) the Hoare annotation is: true [2020-07-07 10:48:21,844 INFO L268 CegarLoopResult]: For program point valid_productFINAL(lines 553 561) no Hoare annotation was computed. [2020-07-07 10:48:21,844 INFO L264 CegarLoopResult]: At program point L577(line 577) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0)) .cse0) (or (not (<= 2 ~waterLevel~0)) .cse0))) [2020-07-07 10:48:21,844 INFO L268 CegarLoopResult]: For program point L575(lines 575 581) no Hoare annotation was computed. [2020-07-07 10:48:21,844 INFO L271 CegarLoopResult]: At program point __utac_acc__Specification4_spec__1ENTRY(lines 563 587) the Hoare annotation is: true [2020-07-07 10:48:21,845 INFO L264 CegarLoopResult]: At program point L573(line 573) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (<= 1 ~waterLevel~0)) (not (= 0 ~pumpRunning~0)) .cse0) (or (not (<= 2 ~waterLevel~0)) .cse0))) [2020-07-07 10:48:21,845 INFO L268 CegarLoopResult]: For program point L573-1(line 573) no Hoare annotation was computed. [2020-07-07 10:48:21,845 INFO L268 CegarLoopResult]: For program point L571(lines 571 584) no Hoare annotation was computed. [2020-07-07 10:48:21,845 INFO L268 CegarLoopResult]: For program point L571-1(lines 563 587) no Hoare annotation was computed. [2020-07-07 10:48:21,845 INFO L271 CegarLoopResult]: At program point L569(line 569) the Hoare annotation is: true [2020-07-07 10:48:21,845 INFO L268 CegarLoopResult]: For program point L569-1(line 569) no Hoare annotation was computed. [2020-07-07 10:48:21,845 INFO L268 CegarLoopResult]: For program point __utac_acc__Specification4_spec__1EXIT(lines 563 587) no Hoare annotation was computed. [2020-07-07 10:48:21,845 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 238 260) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,846 INFO L264 CegarLoopResult]: At program point L250(line 250) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= main_~tmp~0 ~waterLevel~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,846 INFO L264 CegarLoopResult]: At program point L250-1(line 250) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= main_~tmp~0 ~waterLevel~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,846 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 238 260) no Hoare annotation was computed. [2020-07-07 10:48:21,846 INFO L268 CegarLoopResult]: For program point L248(lines 248 255) no Hoare annotation was computed. [2020-07-07 10:48:21,846 INFO L268 CegarLoopResult]: For program point L248-1(lines 248 255) no Hoare annotation was computed. [2020-07-07 10:48:21,846 INFO L268 CegarLoopResult]: For program point L246(line 246) no Hoare annotation was computed. [2020-07-07 10:48:21,846 INFO L264 CegarLoopResult]: At program point L245(line 245) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,847 INFO L264 CegarLoopResult]: At program point L244(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,847 INFO L264 CegarLoopResult]: At program point L244-1(line 244) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,847 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 238 260) no Hoare annotation was computed. [2020-07-07 10:48:21,847 INFO L268 CegarLoopResult]: For program point Specification2EXIT(lines 193 216) no Hoare annotation was computed. [2020-07-07 10:48:21,847 INFO L268 CegarLoopResult]: For program point Specification2ENTRY(lines 193 216) no Hoare annotation was computed. [2020-07-07 10:48:21,847 INFO L268 CegarLoopResult]: For program point Specification2FINAL(lines 193 216) no Hoare annotation was computed. [2020-07-07 10:48:21,847 INFO L268 CegarLoopResult]: For program point L211(line 211) no Hoare annotation was computed. [2020-07-07 10:48:21,847 INFO L268 CegarLoopResult]: For program point L210(line 210) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L208(line 208) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L207(line 207) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L205(line 205) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L204(line 204) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L201(line 201) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point L198(line 198) no Hoare annotation was computed. [2020-07-07 10:48:21,848 INFO L268 CegarLoopResult]: For program point isPumpRunningEXIT(lines 379 387) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L271 CegarLoopResult]: At program point isPumpRunningENTRY(lines 379 387) the Hoare annotation is: true [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point isPumpRunningFINAL(lines 379 387) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point L450-1(line 450) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L271 CegarLoopResult]: At program point isLowWaterLevelENTRY(lines 443 461) the Hoare annotation is: true [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point isLowWaterLevelEXIT(lines 443 461) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point L452(lines 452 456) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L271 CegarLoopResult]: At program point L450(line 450) the Hoare annotation is: true [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point L452-2(lines 452 456) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point isLowWaterLevelFINAL(lines 443 461) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point L418-1(line 418) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point L407(lines 407 415) no Hoare annotation was computed. [2020-07-07 10:48:21,849 INFO L268 CegarLoopResult]: For program point L407-2(lines 407 415) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point printPumpFINAL(lines 388 423) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point L395(lines 395 403) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point L395-2(lines 395 403) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point printPumpENTRY(lines 388 423) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point printPumpEXIT(lines 388 423) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point select_featuresEXIT(lines 539 545) no Hoare annotation was computed. [2020-07-07 10:48:21,850 INFO L271 CegarLoopResult]: At program point select_featuresFINAL(lines 539 545) the Hoare annotation is: true [2020-07-07 10:48:21,850 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setENTRY(lines 595 640) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setEXIT(lines 595 640) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point __utac__exception__cf_handler_setFINAL(lines 595 640) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point L928(lines 928 935) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point L922(lines 922 942) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeFINAL(lines 908 953) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point L922-1(lines 922 942) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeENTRY(lines 908 953) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L268 CegarLoopResult]: For program point __utac__get_this_argtypeEXIT(lines 908 953) no Hoare annotation was computed. [2020-07-07 10:48:21,851 INFO L264 CegarLoopResult]: At program point runTestENTRY(lines 225 234) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point runTestEXIT(lines 225 234) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point runTestFINAL(lines 225 234) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point isMethaneAlarmENTRY(lines 368 378) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point isMethaneAlarmEXIT(lines 368 378) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point isMethaneAlarmFINAL(lines 368 378) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point L373(line 373) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point L373-1(line 373) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L264 CegarLoopResult]: At program point deactivatePumpENTRY(lines 360 367) the Hoare annotation is: (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point deactivatePumpEXIT(lines 360 367) no Hoare annotation was computed. [2020-07-07 10:48:21,852 INFO L268 CegarLoopResult]: For program point deactivatePumpFINAL(lines 360 367) no Hoare annotation was computed. [2020-07-07 10:48:21,853 INFO L268 CegarLoopResult]: For program point L140(lines 140 146) no Hoare annotation was computed. [2020-07-07 10:48:21,853 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryEXIT(lines 136 149) no Hoare annotation was computed. [2020-07-07 10:48:21,853 INFO L271 CegarLoopResult]: At program point isHighWaterSensorDryENTRY(lines 136 149) the Hoare annotation is: true [2020-07-07 10:48:21,853 INFO L268 CegarLoopResult]: For program point isHighWaterSensorDryFINAL(lines 136 149) no Hoare annotation was computed. [2020-07-07 10:48:21,853 INFO L264 CegarLoopResult]: At program point L346(line 346) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= 1 ~waterLevel~0)) .cse0 .cse1) (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1) (or (= 0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) .cse1))) [2020-07-07 10:48:21,853 INFO L268 CegarLoopResult]: For program point L346-1(lines 327 351) no Hoare annotation was computed. [2020-07-07 10:48:21,853 INFO L268 CegarLoopResult]: For program point processEnvironmentEXIT(lines 327 351) no Hoare annotation was computed. [2020-07-07 10:48:21,853 INFO L264 CegarLoopResult]: At program point L341(line 341) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,853 INFO L264 CegarLoopResult]: At program point processEnvironmentENTRY(lines 327 351) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,854 INFO L264 CegarLoopResult]: At program point L337(line 337) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 processEnvironment_~tmp~2)) .cse1))) [2020-07-07 10:48:21,854 INFO L268 CegarLoopResult]: For program point L335(lines 335 343) no Hoare annotation was computed. [2020-07-07 10:48:21,854 INFO L264 CegarLoopResult]: At program point L333(line 333) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= 0 |old(~pumpRunning~0)|)) .cse1) (or .cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1))) [2020-07-07 10:48:21,854 INFO L268 CegarLoopResult]: For program point L333-1(line 333) no Hoare annotation was computed. [2020-07-07 10:48:21,854 INFO L268 CegarLoopResult]: For program point L331(lines 331 348) no Hoare annotation was computed. [2020-07-07 10:48:21,854 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__baseEXIT(lines 293 299) no Hoare annotation was computed. [2020-07-07 10:48:21,854 INFO L271 CegarLoopResult]: At program point processEnvironment__wrappee__baseFINAL(lines 293 299) the Hoare annotation is: true [2020-07-07 10:48:21,854 INFO L264 CegarLoopResult]: At program point testENTRY(lines 463 526) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (and (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,855 INFO L268 CegarLoopResult]: For program point L475(lines 475 479) no Hoare annotation was computed. [2020-07-07 10:48:21,855 INFO L268 CegarLoopResult]: For program point testFINAL(lines 463 526) no Hoare annotation was computed. [2020-07-07 10:48:21,855 INFO L264 CegarLoopResult]: At program point L519(lines 472 520) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,855 INFO L268 CegarLoopResult]: For program point L509(lines 509 513) no Hoare annotation was computed. [2020-07-07 10:48:21,855 INFO L264 CegarLoopResult]: At program point L509-2(lines 503 514) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0)))) [2020-07-07 10:48:21,855 INFO L268 CegarLoopResult]: For program point L474(lines 473 518) no Hoare annotation was computed. [2020-07-07 10:48:21,855 INFO L268 CegarLoopResult]: For program point L503(lines 503 514) no Hoare annotation was computed. [2020-07-07 10:48:21,855 INFO L264 CegarLoopResult]: At program point L495(line 495) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0)))) [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point L493(lines 493 499) no Hoare annotation was computed. [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point L493-1(lines 493 499) no Hoare annotation was computed. [2020-07-07 10:48:21,856 INFO L264 CegarLoopResult]: At program point L485(line 485) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0)))) [2020-07-07 10:48:21,856 INFO L264 CegarLoopResult]: At program point L516(lines 473 518) the Hoare annotation is: (let ((.cse0 (= 0 test_~splverifierCounter~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (and .cse0 (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0)) (not (= 1 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0)))) [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point L483(lines 483 489) no Hoare annotation was computed. [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point testEXIT(lines 463 526) no Hoare annotation was computed. [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point L483-1(lines 483 489) no Hoare annotation was computed. [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point __utac__get_this_argENTRY(lines 862 907) no Hoare annotation was computed. [2020-07-07 10:48:21,856 INFO L268 CegarLoopResult]: For program point __utac__get_this_argEXIT(lines 862 907) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point L882(lines 882 889) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point __utac__get_this_argFINAL(lines 862 907) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point L876(lines 876 896) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point L876-1(lines 876 896) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryFINAL(lines 150 158) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L271 CegarLoopResult]: At program point isLowWaterSensorDryENTRY(lines 150 158) the Hoare annotation is: true [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point isLowWaterSensorDryEXIT(lines 150 158) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point L112(lines 112 120) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point L112-2(lines 112 120) no Hoare annotation was computed. [2020-07-07 10:48:21,857 INFO L268 CegarLoopResult]: For program point printEnvironmentEXIT(lines 104 126) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point printEnvironmentENTRY(lines 104 126) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point printEnvironmentFINAL(lines 104 126) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point select_oneENTRY(lines 529 538) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point select_oneFINAL(lines 529 538) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point select_oneEXIT(lines 529 538) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtENTRY(lines 759 861) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point L824(line 824) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point L824-1(line 824) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point L783(lines 783 787) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point L847(lines 847 858) no Hoare annotation was computed. [2020-07-07 10:48:21,858 INFO L268 CegarLoopResult]: For program point L810(lines 810 814) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L808-2(lines 808 828) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtFINAL(lines 759 861) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L829(lines 807 830) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L788(lines 788 804) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point __utac__error_stack_mgtEXIT(lines 759 861) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L848(lines 848 855) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L809(lines 808 828) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L840(line 840) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L840-1(line 840) no Hoare annotation was computed. [2020-07-07 10:48:21,859 INFO L268 CegarLoopResult]: For program point L805(lines 805 846) no Hoare annotation was computed. [2020-07-07 10:48:21,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,860 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string15.offset| |old(#t~string15.offset)|) (= |#t~string59.offset| |old(#t~string59.offset)|) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0) (= |#t~string9.offset| |old(#t~string9.offset)|) (= |old(#t~string17.offset)| |#t~string17.offset|) (= |old(~head~0.base)| ~head~0.base) (= |old(#t~string61.base)| |#t~string61.base|) (= |old(#t~string70.offset)| |#t~string70.offset|) (= |#t~string71.base| |old(#t~string71.base)|) (= |old(#t~string71.offset)| |#t~string71.offset|) (= |old(#t~string66.offset)| |#t~string66.offset|) (= |old(#t~string68.offset)| |#t~string68.offset|) (= |old(#t~string15.base)| |#t~string15.base|) (= |#t~string27.offset| |old(#t~string27.offset)|) (= |old(#t~string60.base)| |#t~string60.base|) (= |#t~string57.offset| |old(#t~string57.offset)|) (= |old(#t~string29.offset)| |#t~string29.offset|) (= ~head~0.offset |old(~head~0.offset)|) (= |old(~systemActive~0)| ~systemActive~0) (= |#t~string17.base| |old(#t~string17.base)|) (= |#t~string19.offset| |old(#t~string19.offset)|) (= |old(#t~string69.offset)| |#t~string69.offset|) (= |#t~string67.offset| |old(#t~string67.offset)|) (= |old(#t~string61.offset)| |#t~string61.offset|) (= |#t~string23.offset| |old(#t~string23.offset)|) (= |old(#t~string23.base)| |#t~string23.base|) (= |#t~string62.offset| |old(#t~string62.offset)|) (= |#t~string3.base| |old(#t~string3.base)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |#t~string59.base| |old(#t~string59.base)|) (= |old(#t~string25.base)| |#t~string25.base|) (= |old(#t~string29.base)| |#t~string29.base|) (= |#t~string60.offset| |old(#t~string60.offset)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |#t~string58.base| |old(#t~string58.base)|) (= |old(#NULL.base)| |#NULL.base|) (= |old(#t~string57.base)| |#t~string57.base|) (= |#t~string25.offset| |old(#t~string25.offset)|) (= |old(#t~string3.offset)| |#t~string3.offset|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(~waterLevel~0)| ~waterLevel~0) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|) (= |#t~string62.base| |old(#t~string62.base)|) (= |old(#t~string58.offset)| |#t~string58.offset|) (= |#t~string19.base| |old(#t~string19.base)|) (= |old(#t~string66.base)| |#t~string66.base|) (= |old(#t~string70.base)| |#t~string70.base|) (= |#t~string67.base| |old(#t~string67.base)|) (= |#t~string21.offset| |old(#t~string21.offset)|) (= |#t~string21.base| |old(#t~string21.base)|) (= |#t~string9.base| |old(#t~string9.base)|) (= |#t~string27.base| |old(#t~string27.base)|) (= |#valid| |old(#valid)|) (= |old(#t~string1.offset)| |#t~string1.offset|) (= |#t~string68.base| |old(#t~string68.base)|) (= ~cleanupTimeShifts~0 |old(~cleanupTimeShifts~0)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string69.base| |old(#t~string69.base)|)) [2020-07-07 10:48:21,860 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,860 INFO L268 CegarLoopResult]: For program point activatePumpFINAL(lines 352 359) no Hoare annotation was computed. [2020-07-07 10:48:21,860 INFO L268 CegarLoopResult]: For program point activatePumpEXIT(lines 352 359) no Hoare annotation was computed. [2020-07-07 10:48:21,860 INFO L264 CegarLoopResult]: At program point activatePumpENTRY(lines 352 359) the Hoare annotation is: (or (not (= 0 |old(~pumpRunning~0)|)) (= 0 ~pumpRunning~0) (not (<= 2 ~waterLevel~0)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,861 INFO L271 CegarLoopResult]: At program point getWaterLevelENTRY(lines 127 135) the Hoare annotation is: true [2020-07-07 10:48:21,861 INFO L268 CegarLoopResult]: For program point getWaterLevelFINAL(lines 127 135) no Hoare annotation was computed. [2020-07-07 10:48:21,861 INFO L268 CegarLoopResult]: For program point getWaterLevelEXIT(lines 127 135) no Hoare annotation was computed. [2020-07-07 10:48:21,861 INFO L268 CegarLoopResult]: For program point L433(lines 433 437) no Hoare annotation was computed. [2020-07-07 10:48:21,861 INFO L268 CegarLoopResult]: For program point isHighWaterLevelEXIT(lines 424 442) no Hoare annotation was computed. [2020-07-07 10:48:21,861 INFO L271 CegarLoopResult]: At program point L431(line 431) the Hoare annotation is: true [2020-07-07 10:48:21,861 INFO L268 CegarLoopResult]: For program point L433-2(lines 433 437) no Hoare annotation was computed. [2020-07-07 10:48:21,861 INFO L268 CegarLoopResult]: For program point L431-1(line 431) no Hoare annotation was computed. [2020-07-07 10:48:21,861 INFO L271 CegarLoopResult]: At program point isHighWaterLevelENTRY(lines 424 442) the Hoare annotation is: true [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point isHighWaterLevelFINAL(lines 424 442) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L264 CegarLoopResult]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 ~waterLevel~0)) .cse1) (or (not (= 1 ~waterLevel~0)) .cse0 (not (= 0 ~pumpRunning~0)) .cse1))) [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intENTRY(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point ##fun~int~X~int~TO~intFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalENTRY(lines 95 103) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2020-07-07 10:48:21,862 INFO L268 CegarLoopResult]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2020-07-07 10:48:21,863 INFO L264 CegarLoopResult]: At program point L282(line 282) the Hoare annotation is: (let ((.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse3 (not (= 1 ~systemActive~0)))) (and (or (and .cse0 .cse1) .cse2 (not (= 1 |old(~waterLevel~0)|)) .cse3) (let ((.cse4 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse4 .cse0 .cse1) (let ((.cse5 (+ ~waterLevel~0 1))) (and .cse4 .cse2 (<= |old(~waterLevel~0)| .cse5) (<= .cse5 |old(~waterLevel~0)|))) (not (<= 2 |old(~waterLevel~0)|)) .cse3)))) [2020-07-07 10:48:21,863 INFO L264 CegarLoopResult]: At program point L280(lines 280 286) the Hoare annotation is: (let ((.cse2 (not (= 0 |old(~pumpRunning~0)|))) (.cse0 (= 0 ~pumpRunning~0)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or (and .cse0 .cse1) .cse2 (not (= 1 |old(~waterLevel~0)|)) .cse3) (or (let ((.cse4 (+ ~waterLevel~0 1))) (and .cse2 (<= |old(~waterLevel~0)| .cse4) .cse0 (<= .cse4 |old(~waterLevel~0)|))) .cse1 (not (<= 2 |old(~waterLevel~0)|)) .cse3))) [2020-07-07 10:48:21,863 INFO L264 CegarLoopResult]: At program point L275(line 275) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|)) .cse0) (or (not (= 0 |old(~pumpRunning~0)|)) (not (<= 1 |old(~waterLevel~0)|)) .cse0))) [2020-07-07 10:48:21,863 INFO L268 CegarLoopResult]: For program point L273(lines 272 291) no Hoare annotation was computed. [2020-07-07 10:48:21,863 INFO L264 CegarLoopResult]: At program point timeShiftENTRY(lines 269 292) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or (and (= 0 ~pumpRunning~0) .cse0) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 |old(~waterLevel~0)|)) .cse1))) [2020-07-07 10:48:21,863 INFO L268 CegarLoopResult]: For program point timeShiftEXIT(lines 269 292) no Hoare annotation was computed. [2020-07-07 10:48:21,863 INFO L268 CegarLoopResult]: For program point timeShiftFINAL(lines 269 292) no Hoare annotation was computed. [2020-07-07 10:48:21,863 INFO L268 CegarLoopResult]: For program point cleanupEXIT(lines 162 191) no Hoare annotation was computed. [2020-07-07 10:48:21,863 INFO L271 CegarLoopResult]: At program point cleanupENTRY(lines 162 191) the Hoare annotation is: true [2020-07-07 10:48:21,863 INFO L271 CegarLoopResult]: At program point L187(lines 162 191) the Hoare annotation is: true [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point L183(line 183) no Hoare annotation was computed. [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point L176(lines 176 180) no Hoare annotation was computed. [2020-07-07 10:48:21,864 INFO L271 CegarLoopResult]: At program point L176-1(lines 176 180) the Hoare annotation is: true [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-07-07 10:48:21,864 INFO L271 CegarLoopResult]: At program point L172-2(lines 172 186) the Hoare annotation is: true [2020-07-07 10:48:21,864 INFO L271 CegarLoopResult]: At program point L168(line 168) the Hoare annotation is: true [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point L168-1(line 168) no Hoare annotation was computed. [2020-07-07 10:48:21,864 INFO L264 CegarLoopResult]: At program point lowerWaterLevelENTRY(lines 59 70) the Hoare annotation is: (or (= 0 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point L63-1(lines 59 70) no Hoare annotation was computed. [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point lowerWaterLevelEXIT(lines 59 70) no Hoare annotation was computed. [2020-07-07 10:48:21,864 INFO L268 CegarLoopResult]: For program point setupEXIT(lines 217 223) no Hoare annotation was computed. [2020-07-07 10:48:21,865 INFO L271 CegarLoopResult]: At program point setupFINAL(lines 217 223) the Hoare annotation is: true [2020-07-07 10:48:21,865 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,865 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 0 ~pumpRunning~0) (= 1 ~waterLevel~0) (= 1 ~systemActive~0)) [2020-07-07 10:48:21,865 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 10:48:21,865 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 10:48:21,865 INFO L264 CegarLoopResult]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 301 325) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= 1 ~waterLevel~0)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2020-07-07 10:48:21,865 INFO L264 CegarLoopResult]: At program point L320(line 320) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,865 INFO L268 CegarLoopResult]: For program point L320-1(lines 301 325) no Hoare annotation was computed. [2020-07-07 10:48:21,865 INFO L268 CegarLoopResult]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 301 325) no Hoare annotation was computed. [2020-07-07 10:48:21,865 INFO L264 CegarLoopResult]: At program point L315(line 315) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= 0 processEnvironment__wrappee__highWaterSensor_~tmp~1) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,866 INFO L264 CegarLoopResult]: At program point L311(line 311) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) (= 0 ~pumpRunning~0)) (not (= 0 |old(~pumpRunning~0)|)) (not (= 1 ~systemActive~0))) [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point L309(lines 309 317) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L264 CegarLoopResult]: At program point L307(line 307) the Hoare annotation is: (let ((.cse0 (not (= 0 |old(~pumpRunning~0)|))) (.cse1 (= 0 ~pumpRunning~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= 1 ~waterLevel~0)) .cse0 .cse1 .cse2) (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2))) [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point L307-1(line 307) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point L305(lines 305 322) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L264 CegarLoopResult]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|)) .cse1) (or .cse0 (not (= 0 ~pumpRunning~0)) (not (= 1 |old(~waterLevel~0)|)) .cse1))) [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point __automaton_failFINAL(lines 40 47) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point __automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION(line 44) no Hoare annotation was computed. [2020-07-07 10:48:21,866 INFO L271 CegarLoopResult]: At program point __automaton_failENTRY(lines 40 47) the Hoare annotation is: true [2020-07-07 10:48:21,866 INFO L268 CegarLoopResult]: For program point __automaton_failEXIT(lines 40 47) no Hoare annotation was computed. [2020-07-07 10:48:21,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 10:48:21 BoogieIcfgContainer [2020-07-07 10:48:21,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 10:48:21,883 INFO L168 Benchmark]: Toolchain (without parser) took 76008.17 ms. Allocated memory was 137.4 MB in the beginning and 966.3 MB in the end (delta: 828.9 MB). Free memory was 100.7 MB in the beginning and 434.4 MB in the end (delta: -333.7 MB). Peak memory consumption was 826.7 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:21,884 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 10:48:21,884 INFO L168 Benchmark]: CACSL2BoogieTranslator took 639.16 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 171.1 MB in the end (delta: -70.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:21,885 INFO L168 Benchmark]: Boogie Preprocessor took 103.66 ms. Allocated memory is still 201.9 MB. Free memory was 171.1 MB in the beginning and 165.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:21,885 INFO L168 Benchmark]: RCFGBuilder took 1184.96 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 195.0 MB in the end (delta: -30.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:21,886 INFO L168 Benchmark]: TraceAbstraction took 74075.86 ms. Allocated memory was 232.8 MB in the beginning and 966.3 MB in the end (delta: 733.5 MB). Free memory was 195.0 MB in the beginning and 434.4 MB in the end (delta: -239.4 MB). Peak memory consumption was 825.6 MB. Max. memory is 7.1 GB. [2020-07-07 10:48:21,888 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.4 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 639.16 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.5 MB in the beginning and 171.1 MB in the end (delta: -70.6 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.66 ms. Allocated memory is still 201.9 MB. Free memory was 171.1 MB in the beginning and 165.0 MB in the end (delta: 6.1 MB). Peak memory consumption was 6.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1184.96 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 164.3 MB in the beginning and 195.0 MB in the end (delta: -30.7 MB). Peak memory consumption was 84.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 74075.86 ms. Allocated memory was 232.8 MB in the beginning and 966.3 MB in the end (delta: 733.5 MB). Free memory was 195.0 MB in the beginning and 434.4 MB in the end (delta: -239.4 MB). Peak memory consumption was 825.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 162]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 473]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 0 == splverifierCounter) || !(0 == \old(pumpRunning))) || ((0 == splverifierCounter && 0 == pumpRunning) && 1 == waterLevel)) || !(1 == \old(waterLevel))) || !(1 == systemActive) - InvariantResult [Line: 472]: Loop Invariant Derived loop invariant: (!(0 == \old(pumpRunning)) || !(1 == \old(waterLevel))) || !(1 == systemActive) - InvariantResult [Line: 172]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 235 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 58.6s, OverallIterations: 12, TraceHistogramMax: 3, AutomataDifference: 46.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 15.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1794 SDtfs, 3667 SDslu, 3703 SDs, 0 SdLazy, 11599 SolverSat, 2847 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 17.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1734 GetRequests, 1481 SyntacticMatches, 14 SemanticMatches, 239 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3213 ImplicationChecksByTransitivity, 27.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=990occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 576 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 58 LocationsWithAnnotation, 2009 PreInvPairs, 2055 NumberOfFragments, 1098 HoareAnnotationTreeSize, 2009 FomulaSimplifications, 878473 FormulaSimplificationTreeSizeReduction, 3.4s HoareSimplificationTime, 58 FomulaSimplificationsInter, 64989 FormulaSimplificationTreeSizeReductionInter, 11.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 6.2s InterpolantComputationTime, 2370 NumberOfCodeBlocks, 2370 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 2351 ConstructedInterpolants, 0 QuantifiedInterpolants, 785083 SizeOfPredicates, 23 NumberOfNonLiveVariables, 6072 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 19 InterpolantComputations, 10 PerfectInterpolantSequences, 614/708 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...