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_spec1_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:02,524 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:02,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:02,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:02,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:02,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:02,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:02,564 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:02,569 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:02,572 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:02,575 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:02,576 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:02,576 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:02,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:02,578 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:02,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:02,581 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:02,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:02,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:02,585 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:02,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:02,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:02,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:02,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:02,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:02,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:02,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:02,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:02,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:02,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:02,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:02,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:02,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:02,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:02,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:02,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:02,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:02,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:02,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:02,605 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:02,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:02,607 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 [2019-10-03 02:57:02,633 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:02,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:02,635 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:02,639 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:02,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:02,640 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:02,640 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:02,641 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:02,641 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:02,641 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:02,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:02,642 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:02,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:02,643 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:02,643 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:02,643 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:02,643 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:02,643 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:02,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:02,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:02,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:02,646 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:02,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:02,647 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:02,647 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:02,647 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:02,648 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:02,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:02,648 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:02,648 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:02,706 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:02,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:02,723 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:02,725 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:02,725 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:02,726 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-03 02:57:02,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5470b8476/2adb4b24161647aebc03b23fa14cbc99/FLAGa30063739 [2019-10-03 02:57:03,295 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:03,296 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product58.cil.c [2019-10-03 02:57:03,323 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5470b8476/2adb4b24161647aebc03b23fa14cbc99/FLAGa30063739 [2019-10-03 02:57:03,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5470b8476/2adb4b24161647aebc03b23fa14cbc99 [2019-10-03 02:57:03,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:03,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:03,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:03,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:03,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:03,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:03" (1/1) ... [2019-10-03 02:57:03,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ef0aef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:03, skipping insertion in model container [2019-10-03 02:57:03,661 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:03" (1/1) ... [2019-10-03 02:57:03,669 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:03,723 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:04,197 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:04,221 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:04,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:04,360 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:04,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04 WrapperNode [2019-10-03 02:57:04,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:04,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:04,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:04,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:04,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,396 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (1/1) ... [2019-10-03 02:57:04,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:04,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:04,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:04,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:04,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (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 [2019-10-03 02:57:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:04,529 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:04,530 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:04,531 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:57:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:57:04,532 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:04,533 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:04,534 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:57:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:04,535 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:04,536 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:57:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:57:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-10-03 02:57:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:57:04,537 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:04,538 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:04,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:04,540 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:04,540 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:04,541 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:57:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:57:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:04,542 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:04,543 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:04,544 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-10-03 02:57:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-10-03 02:57:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:04,545 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:57:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:57:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:57:04,546 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-10-03 02:57:04,547 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:04,547 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:04,547 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:04,547 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:04,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:04,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:04,550 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:04,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:05,601 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:05,601 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:05,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:05 BoogieIcfgContainer [2019-10-03 02:57:05,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:05,604 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:05,604 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:05,607 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:05,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:03" (1/3) ... [2019-10-03 02:57:05,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156fbfbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:05, skipping insertion in model container [2019-10-03 02:57:05,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:04" (2/3) ... [2019-10-03 02:57:05,608 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@156fbfbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:05, skipping insertion in model container [2019-10-03 02:57:05,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:05" (3/3) ... [2019-10-03 02:57:05,610 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product58.cil.c [2019-10-03 02:57:05,620 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:05,628 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:05,644 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:05,672 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:05,673 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:05,673 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:05,673 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:05,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:05,674 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:05,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:05,674 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:05,704 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2019-10-03 02:57:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-10-03 02:57:05,722 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:05,723 INFO L411 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] [2019-10-03 02:57:05,726 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:05,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:05,731 INFO L82 PathProgramCache]: Analyzing trace with hash 252979836, now seen corresponding path program 1 times [2019-10-03 02:57:05,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:05,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:05,790 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:05,790 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:05,791 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:05,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:06,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:06,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:06,097 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:06,103 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:06,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:06,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:06,122 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 2 states. [2019-10-03 02:57:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:06,177 INFO L93 Difference]: Finished difference Result 155 states and 180 transitions. [2019-10-03 02:57:06,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:06,179 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-10-03 02:57:06,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:06,204 INFO L225 Difference]: With dead ends: 155 [2019-10-03 02:57:06,204 INFO L226 Difference]: Without dead ends: 144 [2019-10-03 02:57:06,209 INFO L640 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 [2019-10-03 02:57:06,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-03 02:57:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-03 02:57:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:57:06,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2019-10-03 02:57:06,316 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 46 [2019-10-03 02:57:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:06,316 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2019-10-03 02:57:06,317 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2019-10-03 02:57:06,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-10-03 02:57:06,324 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:06,324 INFO L411 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] [2019-10-03 02:57:06,325 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:06,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:06,326 INFO L82 PathProgramCache]: Analyzing trace with hash -810106616, now seen corresponding path program 1 times [2019-10-03 02:57:06,326 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:06,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:06,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:06,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:06,330 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:06,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:06,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:06,483 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:06,488 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:06,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:06,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:06,488 INFO L87 Difference]: Start difference. First operand 144 states and 168 transitions. Second operand 3 states. [2019-10-03 02:57:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:06,505 INFO L93 Difference]: Finished difference Result 135 states and 156 transitions. [2019-10-03 02:57:06,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:06,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-10-03 02:57:06,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:06,508 INFO L225 Difference]: With dead ends: 135 [2019-10-03 02:57:06,508 INFO L226 Difference]: Without dead ends: 135 [2019-10-03 02:57:06,509 INFO L640 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 [2019-10-03 02:57:06,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-03 02:57:06,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-10-03 02:57:06,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-03 02:57:06,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 156 transitions. [2019-10-03 02:57:06,521 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 156 transitions. Word has length 47 [2019-10-03 02:57:06,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:06,521 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 156 transitions. [2019-10-03 02:57:06,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:06,522 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 156 transitions. [2019-10-03 02:57:06,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:06,523 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:06,524 INFO L411 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] [2019-10-03 02:57:06,524 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:06,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:06,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2111665897, now seen corresponding path program 1 times [2019-10-03 02:57:06,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:06,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:06,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:06,528 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:06,528 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:06,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:06,643 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:06,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:06,643 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:06,644 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:06,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:06,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:06,644 INFO L87 Difference]: Start difference. First operand 135 states and 156 transitions. Second operand 7 states. [2019-10-03 02:57:06,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:06,990 INFO L93 Difference]: Finished difference Result 135 states and 155 transitions. [2019-10-03 02:57:06,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:06,990 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-10-03 02:57:06,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:06,993 INFO L225 Difference]: With dead ends: 135 [2019-10-03 02:57:06,993 INFO L226 Difference]: Without dead ends: 135 [2019-10-03 02:57:06,994 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:06,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-03 02:57:07,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-10-03 02:57:07,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-03 02:57:07,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 155 transitions. [2019-10-03 02:57:07,009 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 155 transitions. Word has length 52 [2019-10-03 02:57:07,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:07,010 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 155 transitions. [2019-10-03 02:57:07,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:07,010 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 155 transitions. [2019-10-03 02:57:07,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:57:07,017 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:07,017 INFO L411 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] [2019-10-03 02:57:07,018 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:07,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:07,021 INFO L82 PathProgramCache]: Analyzing trace with hash -2095161910, now seen corresponding path program 1 times [2019-10-03 02:57:07,022 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:07,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:07,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:07,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:07,026 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:07,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:07,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:07,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:07,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:57:07,217 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:07,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:57:07,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:57:07,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:57:07,219 INFO L87 Difference]: Start difference. First operand 135 states and 155 transitions. Second operand 5 states. [2019-10-03 02:57:07,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:07,718 INFO L93 Difference]: Finished difference Result 236 states and 272 transitions. [2019-10-03 02:57:07,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:07,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-03 02:57:07,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:07,721 INFO L225 Difference]: With dead ends: 236 [2019-10-03 02:57:07,722 INFO L226 Difference]: Without dead ends: 236 [2019-10-03 02:57:07,722 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:07,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2019-10-03 02:57:07,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 217. [2019-10-03 02:57:07,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2019-10-03 02:57:07,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 246 transitions. [2019-10-03 02:57:07,741 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 246 transitions. Word has length 65 [2019-10-03 02:57:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:07,742 INFO L475 AbstractCegarLoop]: Abstraction has 217 states and 246 transitions. [2019-10-03 02:57:07,742 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:57:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 246 transitions. [2019-10-03 02:57:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-03 02:57:07,744 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:07,746 INFO L411 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, 1] [2019-10-03 02:57:07,746 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:07,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:07,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1983258682, now seen corresponding path program 1 times [2019-10-03 02:57:07,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:07,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:07,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:07,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:07,752 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:07,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:07,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:07,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:07,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:07,864 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:07,866 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:07,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:07,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:07,867 INFO L87 Difference]: Start difference. First operand 217 states and 246 transitions. Second operand 6 states. [2019-10-03 02:57:08,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:08,073 INFO L93 Difference]: Finished difference Result 395 states and 449 transitions. [2019-10-03 02:57:08,074 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:08,074 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-10-03 02:57:08,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:08,078 INFO L225 Difference]: With dead ends: 395 [2019-10-03 02:57:08,079 INFO L226 Difference]: Without dead ends: 395 [2019-10-03 02:57:08,079 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:08,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2019-10-03 02:57:08,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 389. [2019-10-03 02:57:08,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-03 02:57:08,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 442 transitions. [2019-10-03 02:57:08,120 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 442 transitions. Word has length 79 [2019-10-03 02:57:08,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:08,122 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 442 transitions. [2019-10-03 02:57:08,123 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:08,123 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 442 transitions. [2019-10-03 02:57:08,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-03 02:57:08,125 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:08,125 INFO L411 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, 1, 1, 1, 1, 1] [2019-10-03 02:57:08,126 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:08,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:08,126 INFO L82 PathProgramCache]: Analyzing trace with hash -2086163970, now seen corresponding path program 1 times [2019-10-03 02:57:08,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:08,130 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:08,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:08,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:08,131 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:08,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:08,305 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:08,306 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:57:08,306 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:08,306 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:57:08,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:57:08,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:08,307 INFO L87 Difference]: Start difference. First operand 389 states and 442 transitions. Second operand 7 states. [2019-10-03 02:57:08,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:08,978 INFO L93 Difference]: Finished difference Result 421 states and 493 transitions. [2019-10-03 02:57:08,978 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:57:08,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 83 [2019-10-03 02:57:08,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:08,982 INFO L225 Difference]: With dead ends: 421 [2019-10-03 02:57:08,982 INFO L226 Difference]: Without dead ends: 421 [2019-10-03 02:57:08,982 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:57:08,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2019-10-03 02:57:08,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 389. [2019-10-03 02:57:08,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 389 states. [2019-10-03 02:57:09,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 441 transitions. [2019-10-03 02:57:09,002 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 441 transitions. Word has length 83 [2019-10-03 02:57:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:09,003 INFO L475 AbstractCegarLoop]: Abstraction has 389 states and 441 transitions. [2019-10-03 02:57:09,003 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:57:09,003 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 441 transitions. [2019-10-03 02:57:09,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-03 02:57:09,005 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:09,005 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:09,005 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:09,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:09,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1672866455, now seen corresponding path program 1 times [2019-10-03 02:57:09,006 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:09,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:09,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,009 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:57:09,075 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:09,075 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:09,075 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:09,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:09,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:09,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:09,077 INFO L87 Difference]: Start difference. First operand 389 states and 441 transitions. Second operand 6 states. [2019-10-03 02:57:09,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:09,118 INFO L93 Difference]: Finished difference Result 403 states and 455 transitions. [2019-10-03 02:57:09,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:09,119 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 99 [2019-10-03 02:57:09,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:09,122 INFO L225 Difference]: With dead ends: 403 [2019-10-03 02:57:09,122 INFO L226 Difference]: Without dead ends: 403 [2019-10-03 02:57:09,123 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states. [2019-10-03 02:57:09,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 399. [2019-10-03 02:57:09,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 399 states. [2019-10-03 02:57:09,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 451 transitions. [2019-10-03 02:57:09,150 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 451 transitions. Word has length 99 [2019-10-03 02:57:09,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:09,151 INFO L475 AbstractCegarLoop]: Abstraction has 399 states and 451 transitions. [2019-10-03 02:57:09,151 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:09,151 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 451 transitions. [2019-10-03 02:57:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-03 02:57:09,157 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:09,157 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:09,158 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:09,158 INFO L82 PathProgramCache]: Analyzing trace with hash -779380117, now seen corresponding path program 1 times [2019-10-03 02:57:09,158 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:09,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:09,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,161 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:09,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:57:09,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:09,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:57:09,302 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:09,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:57:09,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:57:09,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:09,303 INFO L87 Difference]: Start difference. First operand 399 states and 451 transitions. Second operand 8 states. [2019-10-03 02:57:09,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:09,346 INFO L93 Difference]: Finished difference Result 413 states and 465 transitions. [2019-10-03 02:57:09,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:09,347 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 99 [2019-10-03 02:57:09,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:09,350 INFO L225 Difference]: With dead ends: 413 [2019-10-03 02:57:09,350 INFO L226 Difference]: Without dead ends: 413 [2019-10-03 02:57:09,350 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:57:09,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2019-10-03 02:57:09,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 407. [2019-10-03 02:57:09,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 407 states. [2019-10-03 02:57:09,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 459 transitions. [2019-10-03 02:57:09,367 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 459 transitions. Word has length 99 [2019-10-03 02:57:09,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:09,368 INFO L475 AbstractCegarLoop]: Abstraction has 407 states and 459 transitions. [2019-10-03 02:57:09,368 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:57:09,368 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 459 transitions. [2019-10-03 02:57:09,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-10-03 02:57:09,371 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:09,372 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:09,372 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:09,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:09,375 INFO L82 PathProgramCache]: Analyzing trace with hash -787139476, now seen corresponding path program 1 times [2019-10-03 02:57:09,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:09,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:09,379 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,379 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:09,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:57:09,473 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:09,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:57:09,473 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:09,473 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:57:09,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:57:09,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:09,474 INFO L87 Difference]: Start difference. First operand 407 states and 459 transitions. Second operand 4 states. [2019-10-03 02:57:09,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:09,714 INFO L93 Difference]: Finished difference Result 826 states and 973 transitions. [2019-10-03 02:57:09,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:57:09,714 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 99 [2019-10-03 02:57:09,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:09,719 INFO L225 Difference]: With dead ends: 826 [2019-10-03 02:57:09,719 INFO L226 Difference]: Without dead ends: 826 [2019-10-03 02:57:09,720 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:57:09,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states. [2019-10-03 02:57:09,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 811. [2019-10-03 02:57:09,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 811 states. [2019-10-03 02:57:09,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 811 states to 811 states and 941 transitions. [2019-10-03 02:57:09,750 INFO L78 Accepts]: Start accepts. Automaton has 811 states and 941 transitions. Word has length 99 [2019-10-03 02:57:09,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:09,750 INFO L475 AbstractCegarLoop]: Abstraction has 811 states and 941 transitions. [2019-10-03 02:57:09,750 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:57:09,751 INFO L276 IsEmpty]: Start isEmpty. Operand 811 states and 941 transitions. [2019-10-03 02:57:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-10-03 02:57:09,753 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:09,753 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:09,753 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:09,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:09,754 INFO L82 PathProgramCache]: Analyzing trace with hash -1176915630, now seen corresponding path program 1 times [2019-10-03 02:57:09,754 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:09,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,756 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:09,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:09,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:09,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:09,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:57:09,914 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:57:09,914 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:57:09,915 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 104 with the following transitions: [2019-10-03 02:57:09,917 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [94], [110], [114], [115], [116], [131], [134], [136], [145], [149], [153], [156], [161], [164], [169], [175], [178], [188], [189], [201], [203], [208], [211], [214], [216], [221], [223], [224], [225], [226], [232], [236], [278], [281], [283], [286], [296], [299], [303], [304], [307], [308], [309], [332], [334], [335], [402], [403], [408], [410], [413], [417], [419], [422], [424], [427], [440], [441], [442], [443], [444], [445], [446], [447], [448], [488], [489], [490], [491], [492], [493], [496], [500], [501], [502], [503], [504], [505], [508], [509], [510], [516], [517], [518], [519], [526], [528], [529], [534], [535], [536], [538], [539], [540], [541], [542] [2019-10-03 02:57:09,957 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:57:09,958 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:57:10,027 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:57:10,029 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. [2019-10-03 02:57:10,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:10,033 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:57:10,077 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:57:10,077 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:57:10,081 INFO L420 sIntCurrentIteration]: We unified 102 AI predicates to 102 [2019-10-03 02:57:10,081 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:57:10,082 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:57:10,082 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [13] total 13 [2019-10-03 02:57:10,082 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:10,083 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:10,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:10,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:10,083 INFO L87 Difference]: Start difference. First operand 811 states and 941 transitions. Second operand 2 states. [2019-10-03 02:57:10,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:10,084 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:57:10,084 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:10,084 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 103 [2019-10-03 02:57:10,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:10,085 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:57:10,085 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:57:10,085 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:10,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:57:10,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:57:10,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:57:10,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:57:10,086 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 103 [2019-10-03 02:57:10,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:10,086 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:57:10,086 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:10,086 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:57:10,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:57:10,092 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:57:10 BoogieIcfgContainer [2019-10-03 02:57:10,092 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:57:10,095 INFO L168 Benchmark]: Toolchain (without parser) took 6442.39 ms. Allocated memory was 140.5 MB in the beginning and 316.7 MB in the end (delta: 176.2 MB). Free memory was 86.7 MB in the beginning and 126.5 MB in the end (delta: -39.8 MB). Peak memory consumption was 136.4 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:10,096 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:57:10,097 INFO L168 Benchmark]: CACSL2BoogieTranslator took 708.87 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 86.5 MB in the beginning and 162.3 MB in the end (delta: -75.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:10,098 INFO L168 Benchmark]: Boogie Preprocessor took 90.14 ms. Allocated memory is still 199.8 MB. Free memory was 162.3 MB in the beginning and 158.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:10,099 INFO L168 Benchmark]: RCFGBuilder took 1150.18 ms. Allocated memory was 199.8 MB in the beginning and 226.0 MB in the end (delta: 26.2 MB). Free memory was 158.0 MB in the beginning and 187.0 MB in the end (delta: -29.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:10,100 INFO L168 Benchmark]: TraceAbstraction took 4488.48 ms. Allocated memory was 226.0 MB in the beginning and 316.7 MB in the end (delta: 90.7 MB). Free memory was 187.0 MB in the beginning and 126.5 MB in the end (delta: 60.5 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:57:10,104 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.5 MB in the beginning and 106.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 708.87 ms. Allocated memory was 140.5 MB in the beginning and 199.8 MB in the end (delta: 59.2 MB). Free memory was 86.5 MB in the beginning and 162.3 MB in the end (delta: -75.8 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 90.14 ms. Allocated memory is still 199.8 MB. Free memory was 162.3 MB in the beginning and 158.0 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1150.18 ms. Allocated memory was 199.8 MB in the beginning and 226.0 MB in the end (delta: 26.2 MB). Free memory was 158.0 MB in the beginning and 187.0 MB in the end (delta: -29.0 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4488.48 ms. Allocated memory was 226.0 MB in the beginning and 316.7 MB in the end (delta: 90.7 MB). Free memory was 187.0 MB in the beginning and 126.5 MB in the end (delta: 60.5 MB). Peak memory consumption was 151.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 246 locations, 1 error locations. SAFE Result, 4.4s OverallTime, 10 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1524 SDtfs, 917 SDslu, 3171 SDs, 0 SdLazy, 1107 SolverSat, 296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 194 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=811occurred in iteration=9, 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, 1.0686274509803921 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 82 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 772 NumberOfCodeBlocks, 772 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 762 ConstructedInterpolants, 0 QuantifiedInterpolants, 103070 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 10/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...