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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:50:04,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:50:04,493 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:50:04,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 02:50:04,513 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 02:50:04,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 02:50:04,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 02:50:04,527 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 02:50:04,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 02:50:04,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 02:50:04,538 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 02:50:04,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 02:50:04,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:50:04,542 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:50:04,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:50:04,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:50:04,548 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:50:04,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:50:04,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:50:04,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:50:04,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:50:04,564 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:50:04,569 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:50:04,570 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:50:04,571 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 02:50:04,572 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 02:50:04,572 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 02:50:04,574 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 02:50:04,575 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 02:50:04,576 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 02:50:04,576 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:50:04,578 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:50:04,579 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:50:04,580 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:50:04,582 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:50:04,582 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:50:04,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:50:04,583 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:50:04,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:50:04,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:50:04,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:50:04,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:50:04,620 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:50:04,621 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:50:04,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:50:04,623 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:50:04,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:50:04,624 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:50:04,624 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:50:04,625 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:50:04,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:50:04,625 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:50:04,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:50:04,628 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:50:04,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:50:04,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:50:04,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:50:04,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:50:04,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:50:04,630 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:50:04,630 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:50:04,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:50:04,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:50:04,630 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:50:04,631 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:50:04,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:50:04,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:50:04,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:50:04,632 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:50:04,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:50:04,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:50:04,633 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:50:04,691 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:50:04,710 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:50:04,714 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:50:04,718 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:50:04,719 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:50:04,720 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2019-09-10 02:50:04,784 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ee95ffd/a697b217ea0d42a8a43f309a0d756d25/FLAG0e6760b24 [2019-09-10 02:50:05,250 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:50:05,251 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product21.cil.c [2019-09-10 02:50:05,269 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ee95ffd/a697b217ea0d42a8a43f309a0d756d25/FLAG0e6760b24 [2019-09-10 02:50:05,569 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/33ee95ffd/a697b217ea0d42a8a43f309a0d756d25 [2019-09-10 02:50:05,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:50:05,581 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:50:05,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:05,582 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:50:05,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:50:05,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:05" (1/1) ... [2019-09-10 02:50:05,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c71387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:05, skipping insertion in model container [2019-09-10 02:50:05,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:50:05" (1/1) ... [2019-09-10 02:50:05,599 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:50:05,661 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:50:06,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:06,224 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:50:06,335 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:50:06,375 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:50:06,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06 WrapperNode [2019-09-10 02:50:06,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:50:06,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:50:06,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:50:06,378 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:50:06,391 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,457 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (1/1) ... [2019-09-10 02:50:06,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:50:06,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:50:06,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:50:06,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:50:06,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (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 [2019-09-10 02:50:06,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:50:06,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:50:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-10 02:50:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-10 02:50:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:50:06,546 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-10 02:50:06,547 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-10 02:50:06,547 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-10 02:50:06,547 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-10 02:50:06,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-10 02:50:06,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-10 02:50:06,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-10 02:50:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-10 02:50:06,549 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-10 02:50:06,550 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:06,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:06,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:06,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-10 02:50:06,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-10 02:50:06,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-10 02:50:06,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-10 02:50:06,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-10 02:50:06,552 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-10 02:50:06,552 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-10 02:50:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-10 02:50:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-10 02:50:06,553 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-10 02:50:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-10 02:50:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:50:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-10 02:50:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-10 02:50:06,554 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-10 02:50:06,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-10 02:50:06,555 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-10 02:50:06,555 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-10 02:50:06,555 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-10 02:50:06,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:50:06,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:50:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-10 02:50:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-10 02:50:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-10 02:50:06,556 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-10 02:50:06,557 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2019-09-10 02:50:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-10 02:50:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-10 02:50:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-10 02:50:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2019-09-10 02:50:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-10 02:50:06,558 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-10 02:50:06,559 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:50:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-10 02:50:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-10 02:50:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-10 02:50:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-10 02:50:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-10 02:50:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-10 02:50:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-10 02:50:06,562 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-10 02:50:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-10 02:50:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:50:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-10 02:50:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:50:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:50:06,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:50:07,576 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:50:07,576 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-10 02:50:07,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:07 BoogieIcfgContainer [2019-09-10 02:50:07,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:50:07,581 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:50:07,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:50:07,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:50:07,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:50:05" (1/3) ... [2019-09-10 02:50:07,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79028346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:07, skipping insertion in model container [2019-09-10 02:50:07,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:50:06" (2/3) ... [2019-09-10 02:50:07,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79028346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:50:07, skipping insertion in model container [2019-09-10 02:50:07,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:50:07" (3/3) ... [2019-09-10 02:50:07,588 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product21.cil.c [2019-09-10 02:50:07,599 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:50:07,608 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:50:07,626 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:50:07,656 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:50:07,656 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:50:07,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:50:07,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:50:07,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:50:07,657 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:50:07,657 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:50:07,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:50:07,684 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states. [2019-09-10 02:50:07,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 02:50:07,699 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:07,700 INFO L399 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] [2019-09-10 02:50:07,702 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:07,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:07,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1715391972, now seen corresponding path program 1 times [2019-09-10 02:50:07,711 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:07,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:07,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:07,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:07,761 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:07,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:08,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:08,083 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:08,083 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:50:08,084 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:08,090 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:08,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:08,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:08,104 INFO L87 Difference]: Start difference. First operand 165 states. Second operand 2 states. [2019-09-10 02:50:08,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:08,152 INFO L93 Difference]: Finished difference Result 133 states and 155 transitions. [2019-09-10 02:50:08,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:08,153 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-10 02:50:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:08,166 INFO L225 Difference]: With dead ends: 133 [2019-09-10 02:50:08,167 INFO L226 Difference]: Without dead ends: 122 [2019-09-10 02:50:08,169 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:08,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-09-10 02:50:08,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 122. [2019-09-10 02:50:08,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122 states. [2019-09-10 02:50:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 143 transitions. [2019-09-10 02:50:08,223 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 143 transitions. Word has length 46 [2019-09-10 02:50:08,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:08,223 INFO L475 AbstractCegarLoop]: Abstraction has 122 states and 143 transitions. [2019-09-10 02:50:08,224 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:08,224 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 143 transitions. [2019-09-10 02:50:08,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 02:50:08,227 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:08,227 INFO L399 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] [2019-09-10 02:50:08,228 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:08,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:08,228 INFO L82 PathProgramCache]: Analyzing trace with hash 1451016252, now seen corresponding path program 1 times [2019-09-10 02:50:08,229 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:08,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:08,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:08,230 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:08,230 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:08,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:08,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:08,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:08,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:08,352 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:08,356 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:08,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:08,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:08,357 INFO L87 Difference]: Start difference. First operand 122 states and 143 transitions. Second operand 3 states. [2019-09-10 02:50:08,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:08,388 INFO L93 Difference]: Finished difference Result 113 states and 131 transitions. [2019-09-10 02:50:08,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:08,390 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-10 02:50:08,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:08,392 INFO L225 Difference]: With dead ends: 113 [2019-09-10 02:50:08,393 INFO L226 Difference]: Without dead ends: 113 [2019-09-10 02:50:08,394 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:08,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-09-10 02:50:08,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-09-10 02:50:08,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-09-10 02:50:08,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2019-09-10 02:50:08,413 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 47 [2019-09-10 02:50:08,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:08,413 INFO L475 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2019-09-10 02:50:08,414 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:08,414 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2019-09-10 02:50:08,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 02:50:08,416 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:08,416 INFO L399 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] [2019-09-10 02:50:08,416 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:08,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:08,417 INFO L82 PathProgramCache]: Analyzing trace with hash 880823031, now seen corresponding path program 1 times [2019-09-10 02:50:08,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:08,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:08,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:08,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:08,419 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:08,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:08,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:08,590 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 02:50:08,590 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:08,591 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:50:08,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:50:08,592 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:50:08,594 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand 7 states. [2019-09-10 02:50:08,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:08,912 INFO L93 Difference]: Finished difference Result 113 states and 130 transitions. [2019-09-10 02:50:08,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:50:08,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2019-09-10 02:50:08,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:08,916 INFO L225 Difference]: With dead ends: 113 [2019-09-10 02:50:08,916 INFO L226 Difference]: Without dead ends: 113 [2019-09-10 02:50:08,916 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:08,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2019-09-10 02:50:08,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2019-09-10 02:50:08,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113 states. [2019-09-10 02:50:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 130 transitions. [2019-09-10 02:50:08,927 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 130 transitions. Word has length 51 [2019-09-10 02:50:08,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:08,927 INFO L475 AbstractCegarLoop]: Abstraction has 113 states and 130 transitions. [2019-09-10 02:50:08,928 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:50:08,928 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 130 transitions. [2019-09-10 02:50:08,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-10 02:50:08,930 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:08,930 INFO L399 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] [2019-09-10 02:50:08,930 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:08,931 INFO L82 PathProgramCache]: Analyzing trace with hash 2056665484, now seen corresponding path program 1 times [2019-09-10 02:50:08,931 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:08,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:08,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:08,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:08,933 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:09,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:09,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 02:50:09,125 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:09,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:50:09,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:50:09,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:50:09,128 INFO L87 Difference]: Start difference. First operand 113 states and 130 transitions. Second operand 10 states. [2019-09-10 02:50:09,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:09,844 INFO L93 Difference]: Finished difference Result 271 states and 325 transitions. [2019-09-10 02:50:09,844 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:50:09,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 64 [2019-09-10 02:50:09,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:09,849 INFO L225 Difference]: With dead ends: 271 [2019-09-10 02:50:09,849 INFO L226 Difference]: Without dead ends: 271 [2019-09-10 02:50:09,850 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2019-09-10 02:50:09,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2019-09-10 02:50:09,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 267. [2019-09-10 02:50:09,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-09-10 02:50:09,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 318 transitions. [2019-09-10 02:50:09,898 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 318 transitions. Word has length 64 [2019-09-10 02:50:09,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:09,899 INFO L475 AbstractCegarLoop]: Abstraction has 267 states and 318 transitions. [2019-09-10 02:50:09,899 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:50:09,899 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 318 transitions. [2019-09-10 02:50:09,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 02:50:09,907 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:09,907 INFO L399 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] [2019-09-10 02:50:09,907 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:09,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:09,908 INFO L82 PathProgramCache]: Analyzing trace with hash -2113576122, now seen corresponding path program 1 times [2019-09-10 02:50:09,908 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:09,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:09,909 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:09,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:09,910 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:09,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:50:10,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:50:10,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 02:50:10,000 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:10,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 02:50:10,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 02:50:10,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:10,002 INFO L87 Difference]: Start difference. First operand 267 states and 318 transitions. Second operand 3 states. [2019-09-10 02:50:10,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:10,021 INFO L93 Difference]: Finished difference Result 164 states and 182 transitions. [2019-09-10 02:50:10,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 02:50:10,022 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 02:50:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:10,023 INFO L225 Difference]: With dead ends: 164 [2019-09-10 02:50:10,024 INFO L226 Difference]: Without dead ends: 164 [2019-09-10 02:50:10,024 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 02:50:10,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2019-09-10 02:50:10,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 164. [2019-09-10 02:50:10,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-09-10 02:50:10,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 182 transitions. [2019-09-10 02:50:10,046 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 182 transitions. Word has length 68 [2019-09-10 02:50:10,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:10,047 INFO L475 AbstractCegarLoop]: Abstraction has 164 states and 182 transitions. [2019-09-10 02:50:10,047 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 02:50:10,047 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 182 transitions. [2019-09-10 02:50:10,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 02:50:10,050 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:50:10,050 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:50:10,050 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:50:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:10,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1672476349, now seen corresponding path program 1 times [2019-09-10 02:50:10,051 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:50:10,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:10,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:50:10,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:50:10,053 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:50:10,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:50:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:50:10,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:50:10,207 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:50:10,208 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 02:50:10,210 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [54], [57], [59], [62], [68], [70], [71], [75], [78], [113], [129], [144], [147], [148], [149], [158], [162], [166], [169], [174], [180], [182], [185], [213], [214], [222], [226], [232], [268], [272], [273], [276], [291], [294], [295], [296], [297], [390], [391], [401], [409], [410], [411], [412], [413], [415], [416], [417], [418], [419], [420], [421], [422], [423], [463], [464], [465], [466], [469], [470], [475], [476], [477], [478], [489], [490], [493], [501], [502], [503] [2019-09-10 02:50:10,265 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:50:10,266 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:50:10,339 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 02:50:10,341 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-10 02:50:10,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:50:10,346 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 02:50:10,395 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-10 02:50:10,396 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 02:50:10,399 INFO L420 sIntCurrentIteration]: We unified 107 AI predicates to 107 [2019-09-10 02:50:10,400 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 02:50:10,401 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 02:50:10,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 7 [2019-09-10 02:50:10,401 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:50:10,402 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:50:10,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:50:10,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:10,402 INFO L87 Difference]: Start difference. First operand 164 states and 182 transitions. Second operand 2 states. [2019-09-10 02:50:10,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:50:10,403 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-10 02:50:10,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:50:10,403 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 108 [2019-09-10 02:50:10,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:50:10,404 INFO L225 Difference]: With dead ends: 2 [2019-09-10 02:50:10,404 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:50:10,404 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:50:10,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:50:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:50:10,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:50:10,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:50:10,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 108 [2019-09-10 02:50:10,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:50:10,406 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:50:10,406 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:50:10,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:50:10,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:50:10,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:50:10 BoogieIcfgContainer [2019-09-10 02:50:10,412 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:50:10,415 INFO L168 Benchmark]: Toolchain (without parser) took 4833.21 ms. Allocated memory was 141.6 MB in the beginning and 256.9 MB in the end (delta: 115.3 MB). Free memory was 88.1 MB in the beginning and 96.7 MB in the end (delta: -8.6 MB). Peak memory consumption was 106.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:10,416 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:50:10,417 INFO L168 Benchmark]: CACSL2BoogieTranslator took 795.31 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 87.9 MB in the beginning and 167.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:10,418 INFO L168 Benchmark]: Boogie Preprocessor took 92.26 ms. Allocated memory is still 201.3 MB. Free memory was 167.9 MB in the beginning and 163.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:10,419 INFO L168 Benchmark]: RCFGBuilder took 1109.68 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 163.6 MB in the beginning and 198.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:10,420 INFO L168 Benchmark]: TraceAbstraction took 2831.63 ms. Allocated memory was 229.1 MB in the beginning and 256.9 MB in the end (delta: 27.8 MB). Free memory was 198.7 MB in the beginning and 96.7 MB in the end (delta: 102.0 MB). Peak memory consumption was 129.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:50:10,426 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 141.6 MB. Free memory was 107.8 MB in the beginning and 107.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 795.31 ms. Allocated memory was 141.6 MB in the beginning and 201.3 MB in the end (delta: 59.8 MB). Free memory was 87.9 MB in the beginning and 167.9 MB in the end (delta: -80.0 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.26 ms. Allocated memory is still 201.3 MB. Free memory was 167.9 MB in the beginning and 163.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1109.68 ms. Allocated memory was 201.3 MB in the beginning and 229.1 MB in the end (delta: 27.8 MB). Free memory was 163.6 MB in the beginning and 198.7 MB in the end (delta: -35.1 MB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2831.63 ms. Allocated memory was 229.1 MB in the beginning and 256.9 MB in the end (delta: 27.8 MB). Free memory was 198.7 MB in the beginning and 96.7 MB in the end (delta: 102.0 MB). Peak memory consumption was 129.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 300]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 224 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 649 SDtfs, 427 SDslu, 1288 SDs, 0 SdLazy, 432 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=267occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.897196261682243 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 378 ConstructedInterpolants, 0 QuantifiedInterpolants, 54179 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 32/36 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...