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_spec5_product62.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:46,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:46,557 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:46,569 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:46,569 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:46,571 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:46,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:46,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:46,576 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:46,577 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:46,578 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:46,579 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:46,579 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:46,580 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:46,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:46,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:46,583 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:46,584 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:46,586 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:46,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:46,590 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:46,591 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:46,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:46,593 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:46,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:46,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:46,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:46,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:46,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:46,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:46,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:46,603 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:46,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:46,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:46,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:46,606 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:46,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:46,607 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:46,607 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:46,608 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:46,609 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:46,610 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 [2019-09-20 13:31:46,625 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:46,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:46,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:46,625 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:46,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:46,626 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:46,627 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:46,627 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:46,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:46,627 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:46,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:46,628 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:46,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:46,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:46,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:46,629 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:46,629 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:46,629 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:46,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:46,630 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:46,630 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:46,630 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:46,630 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:46,631 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:46,631 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:46,631 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:46,631 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:46,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:46,632 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:46,632 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:46,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:46,689 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:46,693 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:46,694 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:46,695 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:46,696 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-09-20 13:31:46,764 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfabb6030/2b094c83ff404eb998f141772068d551/FLAGd5a5c89d1 [2019-09-20 13:31:47,320 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:47,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product62.cil.c [2019-09-20 13:31:47,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfabb6030/2b094c83ff404eb998f141772068d551/FLAGd5a5c89d1 [2019-09-20 13:31:47,565 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfabb6030/2b094c83ff404eb998f141772068d551 [2019-09-20 13:31:47,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:47,576 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:47,578 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:47,578 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:47,582 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:47,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:47" (1/1) ... [2019-09-20 13:31:47,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56e4c7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:47, skipping insertion in model container [2019-09-20 13:31:47,587 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:47" (1/1) ... [2019-09-20 13:31:47,595 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:47,655 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:48,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:48,083 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:48,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:48,260 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:48,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48 WrapperNode [2019-09-20 13:31:48,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:48,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:48,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:48,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:48,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (1/1) ... [2019-09-20 13:31:48,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:48,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:48,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:48,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:48,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (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 [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:31:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:48,444 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:48,445 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:48,446 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:31:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:48,447 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:48,448 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:31:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:31:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-09-20 13:31:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:31:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:49,623 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:49,623 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:49,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:49 BoogieIcfgContainer [2019-09-20 13:31:49,625 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:49,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:49,629 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:49,632 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:49,633 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:47" (1/3) ... [2019-09-20 13:31:49,634 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5044a4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:49, skipping insertion in model container [2019-09-20 13:31:49,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:48" (2/3) ... [2019-09-20 13:31:49,635 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5044a4b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:49, skipping insertion in model container [2019-09-20 13:31:49,635 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:49" (3/3) ... [2019-09-20 13:31:49,637 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product62.cil.c [2019-09-20 13:31:49,648 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:49,661 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:49,681 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:49,707 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:49,708 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:49,708 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:49,708 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:49,709 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:49,710 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:49,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:49,710 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states. [2019-09-20 13:31:49,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:49,747 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:49,749 INFO L407 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] [2019-09-20 13:31:49,752 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:49,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:49,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1456889578, now seen corresponding path program 1 times [2019-09-20 13:31:49,761 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:49,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:49,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:49,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:49,814 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:49,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:50,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:50,133 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:50,138 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:50,139 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:50,144 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:50,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:50,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:50,158 INFO L87 Difference]: Start difference. First operand 210 states. Second operand 2 states. [2019-09-20 13:31:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:50,187 INFO L93 Difference]: Finished difference Result 178 states and 209 transitions. [2019-09-20 13:31:50,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:50,188 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:50,201 INFO L225 Difference]: With dead ends: 178 [2019-09-20 13:31:50,201 INFO L226 Difference]: Without dead ends: 167 [2019-09-20 13:31:50,203 INFO L636 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 [2019-09-20 13:31:50,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2019-09-20 13:31:50,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2019-09-20 13:31:50,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2019-09-20 13:31:50,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 197 transitions. [2019-09-20 13:31:50,259 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 197 transitions. Word has length 59 [2019-09-20 13:31:50,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:50,260 INFO L475 AbstractCegarLoop]: Abstraction has 167 states and 197 transitions. [2019-09-20 13:31:50,260 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:50,260 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 197 transitions. [2019-09-20 13:31:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:50,264 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:50,264 INFO L407 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] [2019-09-20 13:31:50,265 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:50,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1129690590, now seen corresponding path program 1 times [2019-09-20 13:31:50,266 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:50,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:50,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:50,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:50,269 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:50,424 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:50,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:50,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:50,425 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:50,427 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:50,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:50,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:50,428 INFO L87 Difference]: Start difference. First operand 167 states and 197 transitions. Second operand 3 states. [2019-09-20 13:31:50,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:50,468 INFO L93 Difference]: Finished difference Result 158 states and 185 transitions. [2019-09-20 13:31:50,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:50,469 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:50,474 INFO L225 Difference]: With dead ends: 158 [2019-09-20 13:31:50,475 INFO L226 Difference]: Without dead ends: 158 [2019-09-20 13:31:50,478 INFO L636 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 [2019-09-20 13:31:50,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-09-20 13:31:50,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-09-20 13:31:50,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-09-20 13:31:50,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 185 transitions. [2019-09-20 13:31:50,507 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 185 transitions. Word has length 60 [2019-09-20 13:31:50,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:50,508 INFO L475 AbstractCegarLoop]: Abstraction has 158 states and 185 transitions. [2019-09-20 13:31:50,508 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:50,508 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 185 transitions. [2019-09-20 13:31:50,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:50,511 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:50,511 INFO L407 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] [2019-09-20 13:31:50,512 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:50,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:50,512 INFO L82 PathProgramCache]: Analyzing trace with hash -651026134, now seen corresponding path program 1 times [2019-09-20 13:31:50,512 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:50,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:50,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:50,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:50,515 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:50,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:50,703 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:50,703 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:50,703 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:50,704 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:50,705 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:50,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:50,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:50,706 INFO L87 Difference]: Start difference. First operand 158 states and 185 transitions. Second operand 7 states. [2019-09-20 13:31:51,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:51,143 INFO L93 Difference]: Finished difference Result 158 states and 184 transitions. [2019-09-20 13:31:51,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:51,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:51,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:51,147 INFO L225 Difference]: With dead ends: 158 [2019-09-20 13:31:51,147 INFO L226 Difference]: Without dead ends: 158 [2019-09-20 13:31:51,147 INFO L636 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 [2019-09-20 13:31:51,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2019-09-20 13:31:51,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2019-09-20 13:31:51,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2019-09-20 13:31:51,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 184 transitions. [2019-09-20 13:31:51,162 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 184 transitions. Word has length 65 [2019-09-20 13:31:51,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:51,164 INFO L475 AbstractCegarLoop]: Abstraction has 158 states and 184 transitions. [2019-09-20 13:31:51,164 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:51,165 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 184 transitions. [2019-09-20 13:31:51,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-20 13:31:51,169 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:51,169 INFO L407 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] [2019-09-20 13:31:51,169 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:51,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:51,170 INFO L82 PathProgramCache]: Analyzing trace with hash 1717523051, now seen corresponding path program 1 times [2019-09-20 13:31:51,170 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:51,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:51,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:51,174 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:51,174 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:51,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:51,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:51,347 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:51,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:31:51,347 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:51,349 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:31:51,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:31:51,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:31:51,350 INFO L87 Difference]: Start difference. First operand 158 states and 184 transitions. Second operand 5 states. [2019-09-20 13:31:52,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:52,012 INFO L93 Difference]: Finished difference Result 282 states and 324 transitions. [2019-09-20 13:31:52,012 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:52,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-09-20 13:31:52,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:52,016 INFO L225 Difference]: With dead ends: 282 [2019-09-20 13:31:52,016 INFO L226 Difference]: Without dead ends: 282 [2019-09-20 13:31:52,017 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:52,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2019-09-20 13:31:52,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 263. [2019-09-20 13:31:52,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2019-09-20 13:31:52,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 298 transitions. [2019-09-20 13:31:52,062 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 298 transitions. Word has length 83 [2019-09-20 13:31:52,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:52,063 INFO L475 AbstractCegarLoop]: Abstraction has 263 states and 298 transitions. [2019-09-20 13:31:52,063 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:31:52,063 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 298 transitions. [2019-09-20 13:31:52,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-20 13:31:52,072 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:52,072 INFO L407 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] [2019-09-20 13:31:52,073 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:52,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:52,076 INFO L82 PathProgramCache]: Analyzing trace with hash 119397721, now seen corresponding path program 1 times [2019-09-20 13:31:52,077 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:52,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:52,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:52,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:52,080 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:52,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:52,244 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:52,244 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:52,244 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:52,244 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:52,245 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:52,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:52,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:52,247 INFO L87 Difference]: Start difference. First operand 263 states and 298 transitions. Second operand 7 states. [2019-09-20 13:31:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:53,047 INFO L93 Difference]: Finished difference Result 281 states and 324 transitions. [2019-09-20 13:31:53,049 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 13:31:53,049 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 97 [2019-09-20 13:31:53,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:53,051 INFO L225 Difference]: With dead ends: 281 [2019-09-20 13:31:53,052 INFO L226 Difference]: Without dead ends: 281 [2019-09-20 13:31:53,052 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-09-20 13:31:53,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-09-20 13:31:53,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 262. [2019-09-20 13:31:53,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2019-09-20 13:31:53,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 295 transitions. [2019-09-20 13:31:53,066 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 295 transitions. Word has length 97 [2019-09-20 13:31:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:53,066 INFO L475 AbstractCegarLoop]: Abstraction has 262 states and 295 transitions. [2019-09-20 13:31:53,067 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 295 transitions. [2019-09-20 13:31:53,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-20 13:31:53,069 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:53,069 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:53,070 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:53,070 INFO L82 PathProgramCache]: Analyzing trace with hash 299468705, now seen corresponding path program 1 times [2019-09-20 13:31:53,070 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:53,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:53,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:53,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:53,177 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:53,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:53,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:31:53,178 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:53,179 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:31:53,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:31:53,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:31:53,180 INFO L87 Difference]: Start difference. First operand 262 states and 295 transitions. Second operand 6 states. [2019-09-20 13:31:53,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:53,212 INFO L93 Difference]: Finished difference Result 269 states and 302 transitions. [2019-09-20 13:31:53,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:31:53,213 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 113 [2019-09-20 13:31:53,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:53,216 INFO L225 Difference]: With dead ends: 269 [2019-09-20 13:31:53,216 INFO L226 Difference]: Without dead ends: 269 [2019-09-20 13:31:53,217 INFO L636 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 [2019-09-20 13:31:53,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-20 13:31:53,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 267. [2019-09-20 13:31:53,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-09-20 13:31:53,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 300 transitions. [2019-09-20 13:31:53,229 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 300 transitions. Word has length 113 [2019-09-20 13:31:53,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:53,230 INFO L475 AbstractCegarLoop]: Abstraction has 267 states and 300 transitions. [2019-09-20 13:31:53,230 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:31:53,230 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 300 transitions. [2019-09-20 13:31:53,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-20 13:31:53,232 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:53,232 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:53,233 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:53,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:53,233 INFO L82 PathProgramCache]: Analyzing trace with hash -2056336545, now seen corresponding path program 1 times [2019-09-20 13:31:53,233 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:53,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:53,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,236 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:53,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:53,360 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:53,361 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:53,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-20 13:31:53,361 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:53,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 13:31:53,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 13:31:53,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:31:53,363 INFO L87 Difference]: Start difference. First operand 267 states and 300 transitions. Second operand 8 states. [2019-09-20 13:31:53,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:53,398 INFO L93 Difference]: Finished difference Result 274 states and 307 transitions. [2019-09-20 13:31:53,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:53,398 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 113 [2019-09-20 13:31:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:53,401 INFO L225 Difference]: With dead ends: 274 [2019-09-20 13:31:53,401 INFO L226 Difference]: Without dead ends: 274 [2019-09-20 13:31:53,402 INFO L636 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 [2019-09-20 13:31:53,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2019-09-20 13:31:53,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 271. [2019-09-20 13:31:53,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2019-09-20 13:31:53,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 304 transitions. [2019-09-20 13:31:53,415 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 304 transitions. Word has length 113 [2019-09-20 13:31:53,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:53,415 INFO L475 AbstractCegarLoop]: Abstraction has 271 states and 304 transitions. [2019-09-20 13:31:53,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 13:31:53,415 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 304 transitions. [2019-09-20 13:31:53,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2019-09-20 13:31:53,417 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:53,418 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:53,418 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:53,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:53,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1287166530, now seen corresponding path program 1 times [2019-09-20 13:31:53,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:53,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:53,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,421 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:53,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:53,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:53,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 13:31:53,540 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:53,541 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 13:31:53,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 13:31:53,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 13:31:53,542 INFO L87 Difference]: Start difference. First operand 271 states and 304 transitions. Second operand 4 states. [2019-09-20 13:31:53,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:53,804 INFO L93 Difference]: Finished difference Result 539 states and 628 transitions. [2019-09-20 13:31:53,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:31:53,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 113 [2019-09-20 13:31:53,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:53,808 INFO L225 Difference]: With dead ends: 539 [2019-09-20 13:31:53,808 INFO L226 Difference]: Without dead ends: 539 [2019-09-20 13:31:53,809 INFO L636 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 [2019-09-20 13:31:53,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2019-09-20 13:31:53,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 530. [2019-09-20 13:31:53,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 530 states. [2019-09-20 13:31:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 611 transitions. [2019-09-20 13:31:53,833 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 611 transitions. Word has length 113 [2019-09-20 13:31:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:53,834 INFO L475 AbstractCegarLoop]: Abstraction has 530 states and 611 transitions. [2019-09-20 13:31:53,834 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 13:31:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 611 transitions. [2019-09-20 13:31:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2019-09-20 13:31:53,836 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:53,837 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:53,837 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:53,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:53,837 INFO L82 PathProgramCache]: Analyzing trace with hash -803017404, now seen corresponding path program 1 times [2019-09-20 13:31:53,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:53,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:53,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:53,840 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:53,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:54,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:54,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:54,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:31:54,027 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:54,027 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:31:54,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:31:54,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:31:54,028 INFO L87 Difference]: Start difference. First operand 530 states and 611 transitions. Second operand 9 states. [2019-09-20 13:31:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:55,427 INFO L93 Difference]: Finished difference Result 970 states and 1120 transitions. [2019-09-20 13:31:55,429 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-20 13:31:55,430 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 117 [2019-09-20 13:31:55,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:55,435 INFO L225 Difference]: With dead ends: 970 [2019-09-20 13:31:55,436 INFO L226 Difference]: Without dead ends: 970 [2019-09-20 13:31:55,437 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-09-20 13:31:55,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2019-09-20 13:31:55,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 886. [2019-09-20 13:31:55,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2019-09-20 13:31:55,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1009 transitions. [2019-09-20 13:31:55,490 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1009 transitions. Word has length 117 [2019-09-20 13:31:55,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:55,490 INFO L475 AbstractCegarLoop]: Abstraction has 886 states and 1009 transitions. [2019-09-20 13:31:55,490 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:31:55,491 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1009 transitions. [2019-09-20 13:31:55,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-20 13:31:55,494 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:55,494 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:55,495 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:55,495 INFO L82 PathProgramCache]: Analyzing trace with hash -394036424, now seen corresponding path program 1 times [2019-09-20 13:31:55,495 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:55,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:55,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:55,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:55,503 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:55,705 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-20 13:31:55,705 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:31:55,706 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:31:55,707 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 196 with the following transitions: [2019-09-20 13:31:55,709 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [85], [88], [92], [93], [94], [110], [114], [115], [116], [119], [121], [127], [131], [134], [135], [136], [145], [149], [153], [156], [159], [161], [167], [169], [175], [178], [188], [189], [190], [191], [201], [203], [208], [211], [212], [214], [219], [221], [222], [223], [224], [225], [226], [230], [233], [237], [243], [272], [276], [279], [282], [284], [287], [294], [297], [300], [304], [305], [308], [309], [310], [312], [313], [314], [316], [319], [321], [324], [327], [336], [338], [339], [342], [344], [350], [354], [357], [358], [359], [383], [385], [386], [453], [454], [464], [472], [473], [474], [475], [476], [477], [478], [479], [480], [512], [513], [514], [515], [518], [519], [520], [521], [522], [523], [528], [529], [532], [533], [534], [535], [536], [537], [538], [539], [540], [541], [542], [543], [544], [545], [550], [551], [552], [553], [556], [557], [558], [559], [560], [561], [562], [563], [564], [566], [567], [570], [571], [572], [573], [576], [577], [578], [580], [581], [586], [587], [588] [2019-09-20 13:31:55,761 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:31:55,761 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:31:55,837 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:31:55,838 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-09-20 13:31:55,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:55,844 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:31:55,904 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:31:55,904 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:31:55,909 INFO L420 sIntCurrentIteration]: We unified 194 AI predicates to 194 [2019-09-20 13:31:55,913 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:31:55,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:31:55,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-09-20 13:31:55,915 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:55,915 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:55,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:55,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:55,916 INFO L87 Difference]: Start difference. First operand 886 states and 1009 transitions. Second operand 2 states. [2019-09-20 13:31:55,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:55,917 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:31:55,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:55,918 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 195 [2019-09-20 13:31:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:55,918 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:31:55,919 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:55,919 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:55,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:55,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:55,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:55,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:55,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2019-09-20 13:31:55,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:55,920 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:55,920 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:55,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:55,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:55,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:55 BoogieIcfgContainer [2019-09-20 13:31:55,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:55,931 INFO L168 Benchmark]: Toolchain (without parser) took 8352.83 ms. Allocated memory was 130.5 MB in the beginning and 362.8 MB in the end (delta: 232.3 MB). Free memory was 83.5 MB in the beginning and 224.6 MB in the end (delta: -141.2 MB). Peak memory consumption was 91.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:55,932 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 130.5 MB. Free memory was 102.5 MB in the beginning and 102.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:55,934 INFO L168 Benchmark]: CACSL2BoogieTranslator took 683.47 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 83.2 MB in the beginning and 160.7 MB in the end (delta: -77.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:55,936 INFO L168 Benchmark]: Boogie Preprocessor took 102.04 ms. Allocated memory is still 198.2 MB. Free memory was 160.7 MB in the beginning and 156.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:55,944 INFO L168 Benchmark]: RCFGBuilder took 1261.54 ms. Allocated memory was 198.2 MB in the beginning and 215.0 MB in the end (delta: 16.8 MB). Free memory was 156.0 MB in the beginning and 182.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 94.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:55,944 INFO L168 Benchmark]: TraceAbstraction took 6299.38 ms. Allocated memory was 215.0 MB in the beginning and 362.8 MB in the end (delta: 147.8 MB). Free memory was 182.5 MB in the beginning and 224.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:55,955 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 130.5 MB. Free memory was 102.5 MB in the beginning and 102.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 683.47 ms. Allocated memory was 130.5 MB in the beginning and 198.2 MB in the end (delta: 67.6 MB). Free memory was 83.2 MB in the beginning and 160.7 MB in the end (delta: -77.4 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.04 ms. Allocated memory is still 198.2 MB. Free memory was 160.7 MB in the beginning and 156.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1261.54 ms. Allocated memory was 198.2 MB in the beginning and 215.0 MB in the end (delta: 16.8 MB). Free memory was 156.0 MB in the beginning and 182.5 MB in the end (delta: -26.5 MB). Peak memory consumption was 94.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6299.38 ms. Allocated memory was 215.0 MB in the beginning and 362.8 MB in the end (delta: 147.8 MB). Free memory was 182.5 MB in the beginning and 224.6 MB in the end (delta: -42.2 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 998]: 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 45 procedures, 266 locations, 1 error locations. SAFE Result, 6.2s OverallTime, 10 OverallIterations, 3 TraceHistogramMax, 3.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1867 SDtfs, 1335 SDslu, 3688 SDs, 0 SdLazy, 2116 SolverSat, 490 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 303 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred 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, 0.788659793814433 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 136 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1015 NumberOfCodeBlocks, 1015 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1005 ConstructedInterpolants, 0 QuantifiedInterpolants, 187747 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 73/82 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...