./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:46:41,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:46:41,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:46:41,507 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:46:41,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:46:41,509 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:46:41,511 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:46:41,513 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:46:41,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:46:41,519 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:46:41,520 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:46:41,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:46:41,523 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:46:41,524 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:46:41,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:46:41,528 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:46:41,529 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:46:41,530 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:46:41,532 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:46:41,537 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:46:41,539 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:46:41,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:46:41,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:46:41,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:46:41,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:46:41,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:46:41,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:46:41,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:46:41,550 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:46:41,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:46:41,552 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:46:41,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:46:41,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:46:41,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:46:41,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:46:41,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:46:41,556 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:46:41,556 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:46:41,557 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:46:41,557 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:46:41,558 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:46:41,559 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:46:41,561 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 23:46:41,590 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:46:41,591 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:46:41,591 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:46:41,591 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:46:41,592 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:46:41,592 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:46:41,593 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:46:41,593 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:46:41,593 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:46:41,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:46:41,594 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 23:46:41,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:46:41,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:46:41,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:46:41,595 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:46:41,595 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:46:41,596 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:46:41,596 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:46:41,596 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:46:41,596 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:46:41,596 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:46:41,597 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:46:41,597 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:46:41,597 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:46:41,597 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:46:41,597 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 23:46:41,598 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 23:46:41,598 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:46:41,598 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:46:41,598 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:46:41,598 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-22 23:46:41,879 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:46:41,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:46:41,904 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:46:41,905 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:46:41,906 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:46:41,907 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-22 23:46:41,986 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f5da6b2/2162d7b0c1d144eb8238351696c3e03d/FLAGd370d1768 [2022-07-22 23:46:42,731 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:46:42,731 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-22 23:46:42,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f5da6b2/2162d7b0c1d144eb8238351696c3e03d/FLAGd370d1768 [2022-07-22 23:46:42,986 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69f5da6b2/2162d7b0c1d144eb8238351696c3e03d [2022-07-22 23:46:42,989 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:46:42,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:46:42,993 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:46:42,993 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:46:42,996 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:46:42,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:46:42" (1/1) ... [2022-07-22 23:46:43,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fb52836 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:42, skipping insertion in model container [2022-07-22 23:46:43,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:46:42" (1/1) ... [2022-07-22 23:46:43,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:46:43,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:46:44,145 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-22 23:46:45,274 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:46:45,333 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:46:45,439 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-22 23:46:45,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:46:45,820 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:46:45,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45 WrapperNode [2022-07-22 23:46:45,823 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:46:45,824 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:46:45,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:46:45,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:46:45,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:45,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,122 INFO L137 Inliner]: procedures = 310, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 5104 [2022-07-22 23:46:46,123 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:46:46,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:46:46,125 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:46:46,125 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:46:46,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,314 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,346 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,416 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:46:46,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:46:46,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:46:46,418 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:46:46,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (1/1) ... [2022-07-22 23:46:46,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:46:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:46:46,449 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:46:46,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:46:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-22 23:46:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-22 23:46:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-22 23:46:46,489 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-22 23:46:46,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:46:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:46:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-22 23:46:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-22 23:46:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-22 23:46:46,490 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-22 23:46:46,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:46:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:46:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-22 23:46:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-22 23:46:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-22 23:46:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-22 23:46:46,491 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:46:46,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:46:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-22 23:46:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-22 23:46:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-22 23:46:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-22 23:46:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-22 23:46:46,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:46:46,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:46:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-22 23:46:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-22 23:46:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-22 23:46:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-22 23:46:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:46:46,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:46:46,493 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-22 23:46:46,494 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-22 23:46:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-22 23:46:46,494 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-22 23:46:46,494 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-22 23:46:46,495 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-22 23:46:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:46:46,495 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:46:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-22 23:46:46,495 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-22 23:46:46,495 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:46:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:46:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-22 23:46:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-22 23:46:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:46:46,496 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-22 23:46:46,496 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-22 23:46:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-22 23:46:46,497 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-22 23:46:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-22 23:46:46,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-22 23:46:46,497 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-22 23:46:46,498 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-22 23:46:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:46:46,498 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-22 23:46:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-22 23:46:46,499 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-22 23:46:46,499 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-22 23:46:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-22 23:46:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-22 23:46:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-22 23:46:46,500 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-22 23:46:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-22 23:46:46,500 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-22 23:46:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-22 23:46:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-22 23:46:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-22 23:46:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:46:46,501 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:46:46,501 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-22 23:46:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-22 23:46:46,502 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-22 23:46:46,502 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-22 23:46:46,502 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:46:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-22 23:46:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-22 23:46:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:46:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:46:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:46:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-22 23:46:46,503 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-22 23:46:46,503 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-22 23:46:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-22 23:46:46,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-22 23:46:46,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:46:46,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:46:46,504 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-22 23:46:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-22 23:46:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-22 23:46:46,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-22 23:46:46,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-22 23:46:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-22 23:46:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-22 23:46:46,506 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-22 23:46:46,506 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-22 23:46:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-22 23:46:46,507 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-22 23:46:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 23:46:46,507 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-22 23:46:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-22 23:46:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-22 23:46:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-22 23:46:46,508 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-22 23:46:46,508 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-22 23:46:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-22 23:46:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-22 23:46:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-22 23:46:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-22 23:46:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:46:46,509 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:46:46,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-22 23:46:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-22 23:46:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 23:46:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-22 23:46:46,510 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-22 23:46:46,510 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-22 23:46:46,511 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-22 23:46:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:46:46,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:46:46,513 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-22 23:46:46,514 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-22 23:46:46,514 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:46:46,515 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-22 23:46:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-22 23:46:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-22 23:46:46,516 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-22 23:46:46,516 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-22 23:46:46,521 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-22 23:46:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:46:46,521 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-22 23:46:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-22 23:46:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-22 23:46:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-22 23:46:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-22 23:46:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-22 23:46:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:46:46,522 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:46:46,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:46:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-22 23:46:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-22 23:46:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-22 23:46:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-22 23:46:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-22 23:46:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-22 23:46:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-22 23:46:46,523 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-22 23:46:46,523 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-22 23:46:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-22 23:46:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-22 23:46:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-22 23:46:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-22 23:46:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-22 23:46:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-22 23:46:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-22 23:46:46,524 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-22 23:46:46,524 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:46:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:46:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-22 23:46:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-22 23:46:46,525 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-22 23:46:46,525 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-22 23:46:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-22 23:46:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-22 23:46:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 23:46:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-22 23:46:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-22 23:46:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-22 23:46:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-22 23:46:46,526 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-22 23:46:46,526 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-22 23:46:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:46:46,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:46:46,527 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-22 23:46:46,527 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-22 23:46:47,385 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:46:47,388 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:46:47,571 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:46:50,703 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:46:50,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:46:50,725 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 23:46:50,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:46:50 BoogieIcfgContainer [2022-07-22 23:46:50,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:46:50,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:46:50,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:46:50,736 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:46:50,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:46:42" (1/3) ... [2022-07-22 23:46:50,737 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@850fafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:46:50, skipping insertion in model container [2022-07-22 23:46:50,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:46:45" (2/3) ... [2022-07-22 23:46:50,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@850fafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:46:50, skipping insertion in model container [2022-07-22 23:46:50,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:46:50" (3/3) ... [2022-07-22 23:46:50,740 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-22 23:46:50,754 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:46:50,754 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:46:50,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:46:50,865 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@470850e8, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1505ff92 [2022-07-22 23:46:50,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:46:50,875 INFO L276 IsEmpty]: Start isEmpty. Operand has 1789 states, 1295 states have (on average 1.430888030888031) internal successors, (1853), 1322 states have internal predecessors, (1853), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) [2022-07-22 23:46:50,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 23:46:50,900 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:46:50,901 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:46:50,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:46:50,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:46:50,907 INFO L85 PathProgramCache]: Analyzing trace with hash 497767634, now seen corresponding path program 1 times [2022-07-22 23:46:50,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:46:50,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758557577] [2022-07-22 23:46:50,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:46:50,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:46:51,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:46:51,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:46:51,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:46:51,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:46:51,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:46:51,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:46:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:46:51,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:46:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:46:51,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:46:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:51,594 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-22 23:46:51,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:46:51,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758557577] [2022-07-22 23:46:51,595 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758557577] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:46:51,595 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:46:51,596 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:46:51,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798437378] [2022-07-22 23:46:51,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:46:51,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:46:51,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:46:51,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:46:51,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:46:51,640 INFO L87 Difference]: Start difference. First operand has 1789 states, 1295 states have (on average 1.430888030888031) internal successors, (1853), 1322 states have internal predecessors, (1853), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:46:57,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:46:57,142 INFO L93 Difference]: Finished difference Result 5490 states and 8345 transitions. [2022-07-22 23:46:57,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:46:57,149 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2022-07-22 23:46:57,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:46:57,209 INFO L225 Difference]: With dead ends: 5490 [2022-07-22 23:46:57,210 INFO L226 Difference]: Without dead ends: 3626 [2022-07-22 23:46:57,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:46:57,233 INFO L413 NwaCegarLoop]: 2741 mSDtfsCounter, 3241 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 5266 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:46:57,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3627 Valid, 5266 Invalid, 3351 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1196 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2022-07-22 23:46:57,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3626 states. [2022-07-22 23:46:57,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3626 to 3448. [2022-07-22 23:46:57,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3448 states, 2494 states have (on average 1.318765036086608) internal successors, (3289), 2530 states have internal predecessors, (3289), 801 states have call successors, (801), 153 states have call predecessors, (801), 152 states have return successors, (800), 794 states have call predecessors, (800), 800 states have call successors, (800) [2022-07-22 23:46:57,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4890 transitions. [2022-07-22 23:46:57,520 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4890 transitions. Word has length 80 [2022-07-22 23:46:57,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:46:57,521 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 4890 transitions. [2022-07-22 23:46:57,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:46:57,522 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4890 transitions. [2022-07-22 23:46:57,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-22 23:46:57,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:46:57,530 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:46:57,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 23:46:57,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:46:57,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:46:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 1152572705, now seen corresponding path program 1 times [2022-07-22 23:46:57,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:46:57,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919636633] [2022-07-22 23:46:57,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:46:57,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:46:57,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:46:57,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:46:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:46:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:46:57,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:46:57,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:46:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:46:57,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:46:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:46:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:46:57,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:46:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-22 23:46:57,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 23:46:57,894 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919636633] [2022-07-22 23:46:57,894 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919636633] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:46:57,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:46:57,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:46:57,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551985146] [2022-07-22 23:46:57,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:46:57,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:46:57,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 23:46:57,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:46:57,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:46:57,900 INFO L87 Difference]: Start difference. First operand 3448 states and 4890 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:04,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:47:04,704 INFO L93 Difference]: Finished difference Result 10645 states and 15172 transitions. [2022-07-22 23:47:04,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:47:04,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 85 [2022-07-22 23:47:04,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:47:04,747 INFO L225 Difference]: With dead ends: 10645 [2022-07-22 23:47:04,748 INFO L226 Difference]: Without dead ends: 7218 [2022-07-22 23:47:04,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:47:04,765 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 3172 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 5001 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3572 SdHoareTripleChecker+Valid, 8262 SdHoareTripleChecker+Invalid, 6168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1167 IncrementalHoareTripleChecker+Valid, 5001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2022-07-22 23:47:04,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 8262 Invalid, 6168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 5001 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2022-07-22 23:47:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7218 states. [2022-07-22 23:47:05,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7218 to 6934. [2022-07-22 23:47:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6934 states, 5018 states have (on average 1.3184535671582305) internal successors, (6616), 5092 states have internal predecessors, (6616), 1605 states have call successors, (1605), 305 states have call predecessors, (1605), 310 states have return successors, (1624), 1596 states have call predecessors, (1624), 1604 states have call successors, (1624) [2022-07-22 23:47:05,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6934 states to 6934 states and 9845 transitions. [2022-07-22 23:47:05,058 INFO L78 Accepts]: Start accepts. Automaton has 6934 states and 9845 transitions. Word has length 85 [2022-07-22 23:47:05,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:47:05,060 INFO L495 AbstractCegarLoop]: Abstraction has 6934 states and 9845 transitions. [2022-07-22 23:47:05,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:05,061 INFO L276 IsEmpty]: Start isEmpty. Operand 6934 states and 9845 transitions. [2022-07-22 23:47:05,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-07-22 23:47:05,093 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:47:05,094 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:47:05,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 23:47:05,095 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:47:05,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:47:05,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1563537257, now seen corresponding path program 1 times [2022-07-22 23:47:05,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 23:47:05,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428505181] [2022-07-22 23:47:05,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:47:05,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 23:47:05,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 23:47:05,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-22 23:47:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-22 23:47:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 23:47:05,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-22 23:47:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-22 23:47:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-22 23:47:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 23:47:05,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:47:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-22 23:47:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-22 23:47:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:47:05,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-22 23:47:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 23:47:05,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-22 23:47:05,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-22 23:47:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 23:47:05,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 23:47:05,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 23:47:05,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:05,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-22 23:47:05,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-22 23:47:06,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:06,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-22 23:47:06,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:06,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:47:06,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 23:47:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-22 23:47:06,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-22 23:47:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-22 23:47:06,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 23:47:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-22 23:47:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-22 23:47:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-22 23:47:06,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-22 23:47:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-22 23:47:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-22 23:47:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-22 23:47:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:06,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-22 23:47:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-22 23:47:06,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-22 23:47:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-22 23:47:06,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-22 23:47:06,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-22 23:47:06,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-22 23:47:06,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-22 23:47:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-22 23:47:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-22 23:47:06,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-22 23:47:06,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-22 23:47:06,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-22 23:47:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-22 23:47:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-22 23:47:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-22 23:47:06,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 23:47:06,333 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Auxiliary term must not be contained in any collection at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.SmtFreePredicateFactory$AuxiliaryTerm.hashCode(SmtFreePredicateFactory.java:134) at java.base/java.util.HashMap.hash(HashMap.java:339) at java.base/java.util.HashMap.containsKey(HashMap.java:591) at java.base/java.util.HashSet.contains(HashSet.java:204) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.ContainsQuantifier$QuantifierFinder.walk(ContainsQuantifier.java:64) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.ContainsQuantifier.containsQuantifier(ContainsQuantifier.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckStatisticsGenerator.reportSequenceOfInterpolants(TraceCheckStatisticsGenerator.java:107) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:248) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:409) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:300) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:260) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:152) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-07-22 23:47:06,341 INFO L158 Benchmark]: Toolchain (without parser) took 23351.48ms. Allocated memory was 94.4MB in the beginning and 679.5MB in the end (delta: 585.1MB). Free memory was 49.8MB in the beginning and 326.5MB in the end (delta: -276.7MB). Peak memory consumption was 308.0MB. Max. memory is 16.1GB. [2022-07-22 23:47:06,342 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-07-22 23:47:06,342 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2830.61ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 49.4MB in the beginning and 114.1MB in the end (delta: -64.7MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. [2022-07-22 23:47:06,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 299.61ms. Allocated memory is still 186.6MB. Free memory was 114.1MB in the beginning and 84.9MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-07-22 23:47:06,344 INFO L158 Benchmark]: Boogie Preprocessor took 292.09ms. Allocated memory is still 186.6MB. Free memory was 84.9MB in the beginning and 92.7MB in the end (delta: -7.7MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-07-22 23:47:06,345 INFO L158 Benchmark]: RCFGBuilder took 4313.14ms. Allocated memory was 186.6MB in the beginning and 333.4MB in the end (delta: 146.8MB). Free memory was 92.7MB in the beginning and 224.6MB in the end (delta: -131.9MB). Peak memory consumption was 143.9MB. Max. memory is 16.1GB. [2022-07-22 23:47:06,345 INFO L158 Benchmark]: TraceAbstraction took 15607.65ms. Allocated memory was 333.4MB in the beginning and 679.5MB in the end (delta: 346.0MB). Free memory was 224.6MB in the beginning and 326.5MB in the end (delta: -101.9MB). Peak memory consumption was 242.1MB. Max. memory is 16.1GB. [2022-07-22 23:47:06,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2830.61ms. Allocated memory was 94.4MB in the beginning and 186.6MB in the end (delta: 92.3MB). Free memory was 49.4MB in the beginning and 114.1MB in the end (delta: -64.7MB). Peak memory consumption was 72.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 299.61ms. Allocated memory is still 186.6MB. Free memory was 114.1MB in the beginning and 84.9MB in the end (delta: 29.2MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 292.09ms. Allocated memory is still 186.6MB. Free memory was 84.9MB in the beginning and 92.7MB in the end (delta: -7.7MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. * RCFGBuilder took 4313.14ms. Allocated memory was 186.6MB in the beginning and 333.4MB in the end (delta: 146.8MB). Free memory was 92.7MB in the beginning and 224.6MB in the end (delta: -131.9MB). Peak memory consumption was 143.9MB. Max. memory is 16.1GB. * TraceAbstraction took 15607.65ms. Allocated memory was 333.4MB in the beginning and 679.5MB in the end (delta: 346.0MB). Free memory was 224.6MB in the beginning and 326.5MB in the end (delta: -101.9MB). Peak memory consumption was 242.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Auxiliary term must not be contained in any collection de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Auxiliary term must not be contained in any collection: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.SmtFreePredicateFactory$AuxiliaryTerm.hashCode(SmtFreePredicateFactory.java:134) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-07-22 23:47:06,384 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 23:47:08,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 23:47:08,385 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 23:47:08,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 23:47:08,413 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 23:47:08,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 23:47:08,420 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 23:47:08,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 23:47:08,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 23:47:08,437 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 23:47:08,439 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 23:47:08,440 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 23:47:08,440 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 23:47:08,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 23:47:08,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 23:47:08,443 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 23:47:08,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 23:47:08,444 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 23:47:08,446 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 23:47:08,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 23:47:08,449 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 23:47:08,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 23:47:08,450 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 23:47:08,451 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 23:47:08,452 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 23:47:08,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 23:47:08,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 23:47:08,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 23:47:08,456 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 23:47:08,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 23:47:08,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 23:47:08,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 23:47:08,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 23:47:08,460 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 23:47:08,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 23:47:08,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 23:47:08,462 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 23:47:08,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 23:47:08,463 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 23:47:08,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 23:47:08,464 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 23:47:08,465 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 23:47:08,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-22 23:47:08,486 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 23:47:08,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 23:47:08,487 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 23:47:08,487 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 23:47:08,488 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 23:47:08,488 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 23:47:08,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 23:47:08,489 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 23:47:08,489 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 23:47:08,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 23:47:08,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 23:47:08,490 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 23:47:08,490 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 23:47:08,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 23:47:08,491 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-22 23:47:08,491 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-22 23:47:08,491 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-22 23:47:08,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 23:47:08,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 23:47:08,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 23:47:08,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 23:47:08,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 23:47:08,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 23:47:08,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:47:08,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 23:47:08,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 23:47:08,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 23:47:08,494 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-22 23:47:08,494 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-22 23:47:08,495 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 23:47:08,495 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 23:47:08,495 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 23:47:08,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-22 23:47:08,495 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-22 23:47:08,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 23:47:08,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 23:47:08,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 23:47:08,843 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 23:47:08,844 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 23:47:08,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-22 23:47:08,912 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a446232da/72263ee2441c4c7abab15a506f07558b/FLAG67b97b1d6 [2022-07-22 23:47:09,786 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 23:47:09,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-22 23:47:09,829 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a446232da/72263ee2441c4c7abab15a506f07558b/FLAG67b97b1d6 [2022-07-22 23:47:09,915 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a446232da/72263ee2441c4c7abab15a506f07558b [2022-07-22 23:47:09,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 23:47:09,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 23:47:09,926 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 23:47:09,926 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 23:47:09,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 23:47:09,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:47:09" (1/1) ... [2022-07-22 23:47:09,931 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a99362 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:09, skipping insertion in model container [2022-07-22 23:47:09,931 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 11:47:09" (1/1) ... [2022-07-22 23:47:09,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 23:47:10,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:47:11,243 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-22 23:47:12,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:47:12,222 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-22 23:47:12,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 23:47:12,409 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-22 23:47:12,562 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:47:12,608 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 23:47:12,716 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i[172824,172837] [2022-07-22 23:47:12,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 23:47:13,033 INFO L208 MainTranslator]: Completed translation [2022-07-22 23:47:13,034 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13 WrapperNode [2022-07-22 23:47:13,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 23:47:13,036 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 23:47:13,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 23:47:13,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 23:47:13,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,137 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,313 INFO L137 Inliner]: procedures = 324, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 4537 [2022-07-22 23:47:13,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 23:47:13,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 23:47:13,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 23:47:13,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 23:47:13,324 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,324 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 23:47:13,572 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 23:47:13,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 23:47:13,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 23:47:13,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (1/1) ... [2022-07-22 23:47:13,581 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 23:47:13,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 23:47:13,613 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 23:47:13,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 23:47:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-22 23:47:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-22 23:47:13,729 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-22 23:47:13,729 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-22 23:47:13,730 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-22 23:47:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-22 23:47:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-22 23:47:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-22 23:47:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-22 23:47:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-22 23:47:13,730 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-22 23:47:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-22 23:47:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-22 23:47:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-22 23:47:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-22 23:47:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-22 23:47:13,731 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-22 23:47:13,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-22 23:47:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-22 23:47:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-22 23:47:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-22 23:47:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-22 23:47:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-22 23:47:13,732 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-22 23:47:13,732 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-22 23:47:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-22 23:47:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-22 23:47:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-22 23:47:13,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-22 23:47:13,733 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-22 23:47:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-22 23:47:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-22 23:47:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-22 23:47:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-22 23:47:13,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-22 23:47:13,734 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-22 23:47:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-22 23:47:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-22 23:47:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-22 23:47:13,735 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-22 23:47:13,735 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-22 23:47:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 23:47:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 23:47:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-22 23:47:13,736 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-22 23:47:13,736 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-22 23:47:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-22 23:47:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-22 23:47:13,737 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-22 23:47:13,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 23:47:13,738 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-22 23:47:13,738 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-22 23:47:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-22 23:47:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-22 23:47:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-22 23:47:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-22 23:47:13,739 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-22 23:47:13,739 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-22 23:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 23:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-22 23:47:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-22 23:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-22 23:47:13,740 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-22 23:47:13,740 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-22 23:47:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-22 23:47:13,741 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-22 23:47:13,741 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-22 23:47:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-22 23:47:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-22 23:47:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-22 23:47:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-22 23:47:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-22 23:47:13,742 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-22 23:47:13,742 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-22 23:47:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-22 23:47:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-22 23:47:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-22 23:47:13,743 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-22 23:47:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-22 23:47:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-22 23:47:13,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 23:47:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-22 23:47:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-22 23:47:13,744 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-22 23:47:13,744 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 23:47:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-22 23:47:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-22 23:47:13,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-22 23:47:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-22 23:47:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-22 23:47:13,746 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-22 23:47:13,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-22 23:47:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-22 23:47:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-22 23:47:13,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-22 23:47:13,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-22 23:47:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-22 23:47:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-22 23:47:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-22 23:47:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-22 23:47:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-22 23:47:13,748 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-22 23:47:13,748 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-22 23:47:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-22 23:47:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-22 23:47:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-22 23:47:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-22 23:47:13,749 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-22 23:47:13,749 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-22 23:47:13,750 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-22 23:47:13,750 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-22 23:47:13,751 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-22 23:47:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-22 23:47:13,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-22 23:47:13,753 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-22 23:47:13,753 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-22 23:47:13,755 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-22 23:47:13,756 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-22 23:47:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-22 23:47:13,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-22 23:47:13,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-22 23:47:13,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-22 23:47:13,762 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-22 23:47:13,763 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-22 23:47:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-22 23:47:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-22 23:47:13,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-22 23:47:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-22 23:47:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-22 23:47:13,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-22 23:47:13,764 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-22 23:47:13,764 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-22 23:47:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 23:47:13,767 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-22 23:47:13,768 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-22 23:47:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-22 23:47:13,768 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-22 23:47:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-22 23:47:13,768 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-22 23:47:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 23:47:13,768 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-22 23:47:13,769 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-22 23:47:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-22 23:47:13,769 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-22 23:47:13,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-22 23:47:13,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-22 23:47:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-22 23:47:13,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-22 23:47:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 23:47:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-22 23:47:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-22 23:47:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-22 23:47:13,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-22 23:47:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-22 23:47:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-22 23:47:13,771 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-22 23:47:13,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-22 23:47:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-22 23:47:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-22 23:47:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-22 23:47:13,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-22 23:47:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-22 23:47:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-22 23:47:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-22 23:47:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-22 23:47:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-22 23:47:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-22 23:47:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-22 23:47:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-22 23:47:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-22 23:47:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-22 23:47:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-22 23:47:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-22 23:47:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-22 23:47:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-22 23:47:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-22 23:47:13,774 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-22 23:47:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-22 23:47:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-22 23:47:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-22 23:47:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-22 23:47:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-22 23:47:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-22 23:47:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-22 23:47:13,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 23:47:13,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 23:47:13,776 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-22 23:47:13,776 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-22 23:47:14,423 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 23:47:14,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 23:47:14,946 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-22 23:47:50,866 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 23:47:50,881 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 23:47:50,882 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-22 23:47:50,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:47:50 BoogieIcfgContainer [2022-07-22 23:47:50,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 23:47:50,887 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 23:47:50,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 23:47:50,891 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 23:47:50,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 11:47:09" (1/3) ... [2022-07-22 23:47:50,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a708f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:47:50, skipping insertion in model container [2022-07-22 23:47:50,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 11:47:13" (2/3) ... [2022-07-22 23:47:50,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73a708f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 11:47:50, skipping insertion in model container [2022-07-22 23:47:50,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 11:47:50" (3/3) ... [2022-07-22 23:47:50,893 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--smsc--smsc9420.ko-entry_point.cil.out.i [2022-07-22 23:47:50,906 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 23:47:50,907 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 23:47:50,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 23:47:51,004 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@33598cde, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@156f6593 [2022-07-22 23:47:51,004 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 23:47:51,015 INFO L276 IsEmpty]: Start isEmpty. Operand has 1610 states, 1116 states have (on average 1.3387096774193548) internal successors, (1494), 1143 states have internal predecessors, (1494), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) [2022-07-22 23:47:51,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-22 23:47:51,038 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:47:51,039 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:47:51,040 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:47:51,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:47:51,045 INFO L85 PathProgramCache]: Analyzing trace with hash 934868167, now seen corresponding path program 1 times [2022-07-22 23:47:51,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:47:51,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [21268226] [2022-07-22 23:47:51,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:47:51,060 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:47:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:47:51,067 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:47:51,113 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-22 23:47:51,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:51,904 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:47:51,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:47:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-22 23:47:52,008 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:47:52,009 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:47:52,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [21268226] [2022-07-22 23:47:52,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [21268226] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:47:52,009 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:47:52,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:47:52,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986381572] [2022-07-22 23:47:52,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:47:52,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:47:52,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:47:52,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:47:52,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:47:52,082 INFO L87 Difference]: Start difference. First operand has 1610 states, 1116 states have (on average 1.3387096774193548) internal successors, (1494), 1143 states have internal predecessors, (1494), 415 states have call successors, (415), 78 states have call predecessors, (415), 77 states have return successors, (408), 405 states have call predecessors, (408), 408 states have call successors, (408) Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:52,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:47:52,334 INFO L93 Difference]: Finished difference Result 3216 states and 4662 transitions. [2022-07-22 23:47:52,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:47:52,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 80 [2022-07-22 23:47:52,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:47:52,366 INFO L225 Difference]: With dead ends: 3216 [2022-07-22 23:47:52,366 INFO L226 Difference]: Without dead ends: 1571 [2022-07-22 23:47:52,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:47:52,392 INFO L413 NwaCegarLoop]: 2310 mSDtfsCounter, 0 mSDsluCounter, 2308 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4618 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 23:47:52,393 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4618 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 23:47:52,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-07-22 23:47:52,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2022-07-22 23:47:52,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1571 states, 1086 states have (on average 1.3130755064456723) internal successors, (1426), 1104 states have internal predecessors, (1426), 408 states have call successors, (408), 77 states have call predecessors, (408), 76 states have return successors, (407), 404 states have call predecessors, (407), 407 states have call successors, (407) [2022-07-22 23:47:52,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2241 transitions. [2022-07-22 23:47:52,588 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2241 transitions. Word has length 80 [2022-07-22 23:47:52,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:47:52,591 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2241 transitions. [2022-07-22 23:47:52,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:52,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2241 transitions. [2022-07-22 23:47:52,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-22 23:47:52,598 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:47:52,599 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:47:52,627 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-22 23:47:52,815 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:47:52,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:47:52,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:47:52,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1121554641, now seen corresponding path program 1 times [2022-07-22 23:47:52,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:47:52,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256404702] [2022-07-22 23:47:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:47:52,820 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:47:52,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:47:52,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:47:52,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-22 23:47:53,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:53,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:47:53,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:47:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-22 23:47:53,876 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:47:54,039 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-22 23:47:54,039 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:47:54,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256404702] [2022-07-22 23:47:54,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256404702] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:47:54,040 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:47:54,040 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-22 23:47:54,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278944976] [2022-07-22 23:47:54,040 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:47:54,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:47:54,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:47:54,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:47:54,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:47:54,043 INFO L87 Difference]: Start difference. First operand 1571 states and 2241 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:54,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:47:54,298 INFO L93 Difference]: Finished difference Result 3119 states and 4451 transitions. [2022-07-22 23:47:54,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:47:54,299 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 81 [2022-07-22 23:47:54,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:47:54,310 INFO L225 Difference]: With dead ends: 3119 [2022-07-22 23:47:54,311 INFO L226 Difference]: Without dead ends: 1574 [2022-07-22 23:47:54,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:47:54,319 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 0 mSDsluCounter, 6711 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 8950 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:47:54,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 8950 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:47:54,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-07-22 23:47:54,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1574. [2022-07-22 23:47:54,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1574 states, 1089 states have (on average 1.3122130394857667) internal successors, (1429), 1107 states have internal predecessors, (1429), 408 states have call successors, (408), 77 states have call predecessors, (408), 76 states have return successors, (407), 404 states have call predecessors, (407), 407 states have call successors, (407) [2022-07-22 23:47:54,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2244 transitions. [2022-07-22 23:47:54,389 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2244 transitions. Word has length 81 [2022-07-22 23:47:54,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:47:54,390 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 2244 transitions. [2022-07-22 23:47:54,390 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:54,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2244 transitions. [2022-07-22 23:47:54,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-22 23:47:54,392 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:47:54,393 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:47:54,429 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-07-22 23:47:54,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:47:54,612 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:47:54,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:47:54,612 INFO L85 PathProgramCache]: Analyzing trace with hash 1225041735, now seen corresponding path program 2 times [2022-07-22 23:47:54,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:47:54,614 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1299371958] [2022-07-22 23:47:54,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 23:47:54,614 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:47:54,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:47:54,616 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:47:54,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-22 23:47:55,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 23:47:55,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 23:47:55,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:47:55,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:47:55,443 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-22 23:47:55,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:47:55,444 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:47:55,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1299371958] [2022-07-22 23:47:55,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1299371958] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:47:55,444 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:47:55,444 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:47:55,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616908845] [2022-07-22 23:47:55,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:47:55,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:47:55,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:47:55,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:47:55,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:47:55,446 INFO L87 Difference]: Start difference. First operand 1574 states and 2244 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:55,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:47:55,760 INFO L93 Difference]: Finished difference Result 4638 states and 6620 transitions. [2022-07-22 23:47:55,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:47:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 84 [2022-07-22 23:47:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:47:55,782 INFO L225 Difference]: With dead ends: 4638 [2022-07-22 23:47:55,783 INFO L226 Difference]: Without dead ends: 3094 [2022-07-22 23:47:55,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:47:55,793 INFO L413 NwaCegarLoop]: 2648 mSDtfsCounter, 2171 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2171 SdHoareTripleChecker+Valid, 4869 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:47:55,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4869 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:47:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-07-22 23:47:56,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2022-07-22 23:47:56,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3094 states, 2140 states have (on average 1.3144859813084113) internal successors, (2813), 2176 states have internal predecessors, (2813), 801 states have call successors, (801), 153 states have call predecessors, (801), 152 states have return successors, (800), 794 states have call predecessors, (800), 800 states have call successors, (800) [2022-07-22 23:47:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4414 transitions. [2022-07-22 23:47:56,061 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4414 transitions. Word has length 84 [2022-07-22 23:47:56,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:47:56,062 INFO L495 AbstractCegarLoop]: Abstraction has 3094 states and 4414 transitions. [2022-07-22 23:47:56,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:56,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4414 transitions. [2022-07-22 23:47:56,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-22 23:47:56,065 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:47:56,065 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:47:56,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-07-22 23:47:56,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:47:56,280 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:47:56,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:47:56,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1801508975, now seen corresponding path program 1 times [2022-07-22 23:47:56,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:47:56,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [582035264] [2022-07-22 23:47:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:47:56,282 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:47:56,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:47:56,284 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:47:56,286 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-22 23:47:57,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:47:57,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:47:57,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:47:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-22 23:47:57,475 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:47:57,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:47:57,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [582035264] [2022-07-22 23:47:57,475 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [582035264] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:47:57,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:47:57,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 23:47:57,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697589940] [2022-07-22 23:47:57,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:47:57,476 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:47:57,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:47:57,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:47:57,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:47:57,477 INFO L87 Difference]: Start difference. First operand 3094 states and 4414 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:57,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:47:57,946 INFO L93 Difference]: Finished difference Result 9219 states and 13174 transitions. [2022-07-22 23:47:57,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:47:57,947 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 89 [2022-07-22 23:47:57,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:47:57,988 INFO L225 Difference]: With dead ends: 9219 [2022-07-22 23:47:57,989 INFO L226 Difference]: Without dead ends: 6150 [2022-07-22 23:47:58,007 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:47:58,008 INFO L413 NwaCegarLoop]: 2683 mSDtfsCounter, 2215 mSDsluCounter, 7567 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 10250 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:47:58,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 10250 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:47:58,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-07-22 23:47:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6150. [2022-07-22 23:47:58,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6150 states, 4254 states have (on average 1.314997649271274) internal successors, (5594), 4326 states have internal predecessors, (5594), 1591 states have call successors, (1591), 305 states have call predecessors, (1591), 304 states have return successors, (1598), 1578 states have call predecessors, (1598), 1590 states have call successors, (1598) [2022-07-22 23:47:58,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8783 transitions. [2022-07-22 23:47:58,307 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8783 transitions. Word has length 89 [2022-07-22 23:47:58,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:47:58,307 INFO L495 AbstractCegarLoop]: Abstraction has 6150 states and 8783 transitions. [2022-07-22 23:47:58,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2022-07-22 23:47:58,308 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8783 transitions. [2022-07-22 23:47:58,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-07-22 23:47:58,333 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:47:58,333 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:47:58,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-22 23:47:58,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:47:58,552 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:47:58,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:47:58,553 INFO L85 PathProgramCache]: Analyzing trace with hash -420332833, now seen corresponding path program 1 times [2022-07-22 23:47:58,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:47:58,555 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [955768224] [2022-07-22 23:47:58,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:47:58,555 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:47:58,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:47:58,557 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:47:58,560 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-22 23:48:00,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:00,321 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:48:00,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:00,405 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2022-07-22 23:48:00,405 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:00,405 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:00,405 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [955768224] [2022-07-22 23:48:00,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [955768224] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:00,406 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:00,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:48:00,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251039243] [2022-07-22 23:48:00,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:00,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:48:00,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:00,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:48:00,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:48:00,408 INFO L87 Difference]: Start difference. First operand 6150 states and 8783 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-22 23:48:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:01,012 INFO L93 Difference]: Finished difference Result 17146 states and 24421 transitions. [2022-07-22 23:48:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:48:01,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) Word has length 471 [2022-07-22 23:48:01,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:01,087 INFO L225 Difference]: With dead ends: 17146 [2022-07-22 23:48:01,087 INFO L226 Difference]: Without dead ends: 11026 [2022-07-22 23:48:01,123 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 470 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:48:01,124 INFO L413 NwaCegarLoop]: 2576 mSDtfsCounter, 1800 mSDsluCounter, 2096 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1800 SdHoareTripleChecker+Valid, 4672 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:01,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1800 Valid, 4672 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 23:48:01,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2022-07-22 23:48:01,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10966. [2022-07-22 23:48:01,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10966 states, 7590 states have (on average 1.3155467720685112) internal successors, (9985), 7750 states have internal predecessors, (9985), 2799 states have call successors, (2799), 577 states have call predecessors, (2799), 576 states have return successors, (2820), 2754 states have call predecessors, (2820), 2798 states have call successors, (2820) [2022-07-22 23:48:01,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10966 states to 10966 states and 15604 transitions. [2022-07-22 23:48:01,695 INFO L78 Accepts]: Start accepts. Automaton has 10966 states and 15604 transitions. Word has length 471 [2022-07-22 23:48:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:01,696 INFO L495 AbstractCegarLoop]: Abstraction has 10966 states and 15604 transitions. [2022-07-22 23:48:01,697 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 2 states have call successors, (69), 2 states have call predecessors, (69), 2 states have return successors, (68), 2 states have call predecessors, (68), 2 states have call successors, (68) [2022-07-22 23:48:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10966 states and 15604 transitions. [2022-07-22 23:48:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-07-22 23:48:01,734 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:01,734 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 11, 11, 11, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:01,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:01,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:01,956 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:01,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:01,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1063400336, now seen corresponding path program 1 times [2022-07-22 23:48:01,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:01,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [291095862] [2022-07-22 23:48:01,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:01,958 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:01,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:01,960 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:01,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-22 23:48:03,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:03,664 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:48:03,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:03,738 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-07-22 23:48:03,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:03,738 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:03,739 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [291095862] [2022-07-22 23:48:03,739 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [291095862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:03,739 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:03,739 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:48:03,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892224785] [2022-07-22 23:48:03,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:03,740 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:48:03,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:03,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:48:03,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:48:03,741 INFO L87 Difference]: Start difference. First operand 10966 states and 15604 transitions. Second operand has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-07-22 23:48:04,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:04,387 INFO L93 Difference]: Finished difference Result 28123 states and 40036 transitions. [2022-07-22 23:48:04,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:48:04,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 517 [2022-07-22 23:48:04,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:04,495 INFO L225 Difference]: With dead ends: 28123 [2022-07-22 23:48:04,496 INFO L226 Difference]: Without dead ends: 17187 [2022-07-22 23:48:04,552 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 515 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:48:04,553 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 1766 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1766 SdHoareTripleChecker+Valid, 5660 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:04,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1766 Valid, 5660 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:48:04,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17187 states. [2022-07-22 23:48:05,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17187 to 17179. [2022-07-22 23:48:05,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17179 states, 11943 states have (on average 1.3216947165703758) internal successors, (15785), 12159 states have internal predecessors, (15785), 4323 states have call successors, (4323), 913 states have call predecessors, (4323), 912 states have return successors, (4350), 4266 states have call predecessors, (4350), 4322 states have call successors, (4350) [2022-07-22 23:48:05,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17179 states to 17179 states and 24458 transitions. [2022-07-22 23:48:05,372 INFO L78 Accepts]: Start accepts. Automaton has 17179 states and 24458 transitions. Word has length 517 [2022-07-22 23:48:05,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:05,373 INFO L495 AbstractCegarLoop]: Abstraction has 17179 states and 24458 transitions. [2022-07-22 23:48:05,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.33333333333333) internal successors, (217), 3 states have internal predecessors, (217), 2 states have call successors, (77), 2 states have call predecessors, (77), 2 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2022-07-22 23:48:05,374 INFO L276 IsEmpty]: Start isEmpty. Operand 17179 states and 24458 transitions. [2022-07-22 23:48:05,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-22 23:48:05,421 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:05,421 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 10, 10, 10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:05,513 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:05,647 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:05,648 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:05,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:05,648 INFO L85 PathProgramCache]: Analyzing trace with hash 775553112, now seen corresponding path program 1 times [2022-07-22 23:48:05,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:05,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [156720990] [2022-07-22 23:48:05,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:05,651 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:05,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:05,653 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:05,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-22 23:48:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:07,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-22 23:48:07,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:07,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2022-07-22 23:48:07,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:07,786 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:07,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [156720990] [2022-07-22 23:48:07,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [156720990] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:07,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:07,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-22 23:48:07,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274269944] [2022-07-22 23:48:07,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:07,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-22 23:48:07,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:07,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-22 23:48:07,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:48:07,788 INFO L87 Difference]: Start difference. First operand 17179 states and 24458 transitions. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2022-07-22 23:48:08,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:08,918 INFO L93 Difference]: Finished difference Result 41041 states and 58352 transitions. [2022-07-22 23:48:08,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-22 23:48:08,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) Word has length 552 [2022-07-22 23:48:08,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:09,039 INFO L225 Difference]: With dead ends: 41041 [2022-07-22 23:48:09,039 INFO L226 Difference]: Without dead ends: 23913 [2022-07-22 23:48:09,099 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-22 23:48:09,100 INFO L413 NwaCegarLoop]: 3939 mSDtfsCounter, 2007 mSDsluCounter, 1977 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5916 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:09,100 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2007 Valid, 5916 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 23:48:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23913 states. [2022-07-22 23:48:10,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23913 to 23849. [2022-07-22 23:48:10,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23849 states, 16633 states have (on average 1.3228521613659592) internal successors, (22003), 16901 states have internal predecessors, (22003), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1310 states have return successors, (5938), 5836 states have call predecessors, (5938), 5904 states have call successors, (5938) [2022-07-22 23:48:10,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23849 states to 23849 states and 33846 transitions. [2022-07-22 23:48:10,198 INFO L78 Accepts]: Start accepts. Automaton has 23849 states and 33846 transitions. Word has length 552 [2022-07-22 23:48:10,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:10,198 INFO L495 AbstractCegarLoop]: Abstraction has 23849 states and 33846 transitions. [2022-07-22 23:48:10,199 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 3 states have call successors, (81), 3 states have call predecessors, (81), 3 states have return successors, (80), 3 states have call predecessors, (80), 3 states have call successors, (80) [2022-07-22 23:48:10,199 INFO L276 IsEmpty]: Start isEmpty. Operand 23849 states and 33846 transitions. [2022-07-22 23:48:10,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-07-22 23:48:10,267 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:10,268 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 10, 10, 10, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:10,352 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:10,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:10,488 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:10,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:10,488 INFO L85 PathProgramCache]: Analyzing trace with hash 272930517, now seen corresponding path program 1 times [2022-07-22 23:48:10,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:10,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1031269495] [2022-07-22 23:48:10,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:10,491 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:10,491 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:10,492 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:10,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-22 23:48:12,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:12,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 23:48:12,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:12,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-07-22 23:48:12,320 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:12,320 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:12,320 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1031269495] [2022-07-22 23:48:12,320 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1031269495] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:12,321 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:12,321 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:48:12,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956010377] [2022-07-22 23:48:12,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:12,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:48:12,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:12,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:48:12,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:48:12,324 INFO L87 Difference]: Start difference. First operand 23849 states and 33846 transitions. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-07-22 23:48:13,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:13,935 INFO L93 Difference]: Finished difference Result 55601 states and 78910 transitions. [2022-07-22 23:48:13,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:48:13,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) Word has length 575 [2022-07-22 23:48:13,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:14,272 INFO L225 Difference]: With dead ends: 55601 [2022-07-22 23:48:14,272 INFO L226 Difference]: Without dead ends: 31803 [2022-07-22 23:48:14,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 573 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:48:14,337 INFO L413 NwaCegarLoop]: 4170 mSDtfsCounter, 2351 mSDsluCounter, 5984 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2351 SdHoareTripleChecker+Valid, 10154 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:14,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 10154 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-07-22 23:48:14,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31803 states. [2022-07-22 23:48:15,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31803 to 23857. [2022-07-22 23:48:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23857 states, 16641 states have (on average 1.3224565831380326) internal successors, (22007), 16909 states have internal predecessors, (22007), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1310 states have return successors, (5938), 5836 states have call predecessors, (5938), 5904 states have call successors, (5938) [2022-07-22 23:48:15,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23857 states to 23857 states and 33850 transitions. [2022-07-22 23:48:15,354 INFO L78 Accepts]: Start accepts. Automaton has 23857 states and 33850 transitions. Word has length 575 [2022-07-22 23:48:15,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:15,355 INFO L495 AbstractCegarLoop]: Abstraction has 23857 states and 33850 transitions. [2022-07-22 23:48:15,355 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 2 states have call successors, (83), 2 states have call predecessors, (83), 2 states have return successors, (82), 2 states have call predecessors, (82), 2 states have call successors, (82) [2022-07-22 23:48:15,356 INFO L276 IsEmpty]: Start isEmpty. Operand 23857 states and 33850 transitions. [2022-07-22 23:48:15,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2022-07-22 23:48:15,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:15,437 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:15,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:15,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:15,660 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:15,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:15,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1315275553, now seen corresponding path program 1 times [2022-07-22 23:48:15,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:15,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [136571866] [2022-07-22 23:48:15,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:15,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:15,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:15,664 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:15,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-22 23:48:17,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:17,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-22 23:48:17,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:18,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2022-07-22 23:48:18,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:18,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:18,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [136571866] [2022-07-22 23:48:18,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [136571866] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:18,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:18,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:48:18,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422678045] [2022-07-22 23:48:18,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:18,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:48:18,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:18,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:48:18,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:48:18,212 INFO L87 Difference]: Start difference. First operand 23857 states and 33850 transitions. Second operand has 6 states, 6 states have (on average 48.5) internal successors, (291), 5 states have internal predecessors, (291), 2 states have call successors, (93), 2 states have call predecessors, (93), 3 states have return successors, (92), 3 states have call predecessors, (92), 2 states have call successors, (92) [2022-07-22 23:48:20,578 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:48:21,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:21,584 INFO L93 Difference]: Finished difference Result 52515 states and 75221 transitions. [2022-07-22 23:48:21,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:48:21,585 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 5 states have internal predecessors, (291), 2 states have call successors, (93), 2 states have call predecessors, (93), 3 states have return successors, (92), 3 states have call predecessors, (92), 2 states have call successors, (92) Word has length 709 [2022-07-22 23:48:21,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:21,700 INFO L225 Difference]: With dead ends: 52515 [2022-07-22 23:48:21,700 INFO L226 Difference]: Without dead ends: 28709 [2022-07-22 23:48:21,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:48:21,772 INFO L413 NwaCegarLoop]: 2981 mSDtfsCounter, 1263 mSDsluCounter, 11166 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 208 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1369 SdHoareTripleChecker+Valid, 14147 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:21,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 14147 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-22 23:48:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28709 states. [2022-07-22 23:48:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28709 to 23897. [2022-07-22 23:48:22,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23897 states, 16673 states have (on average 1.3218377016733642) internal successors, (22039), 16941 states have internal predecessors, (22039), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1318 states have return successors, (5966), 5844 states have call predecessors, (5966), 5904 states have call successors, (5966) [2022-07-22 23:48:23,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23897 states to 23897 states and 33910 transitions. [2022-07-22 23:48:23,061 INFO L78 Accepts]: Start accepts. Automaton has 23897 states and 33910 transitions. Word has length 709 [2022-07-22 23:48:23,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:23,061 INFO L495 AbstractCegarLoop]: Abstraction has 23897 states and 33910 transitions. [2022-07-22 23:48:23,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 48.5) internal successors, (291), 5 states have internal predecessors, (291), 2 states have call successors, (93), 2 states have call predecessors, (93), 3 states have return successors, (92), 3 states have call predecessors, (92), 2 states have call successors, (92) [2022-07-22 23:48:23,062 INFO L276 IsEmpty]: Start isEmpty. Operand 23897 states and 33910 transitions. [2022-07-22 23:48:23,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2022-07-22 23:48:23,118 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:23,119 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:23,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:23,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:23,336 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:23,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:23,336 INFO L85 PathProgramCache]: Analyzing trace with hash -2113028057, now seen corresponding path program 1 times [2022-07-22 23:48:23,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:23,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722423795] [2022-07-22 23:48:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:23,339 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:23,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:23,340 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:23,355 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-22 23:48:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:25,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-22 23:48:25,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:25,883 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-07-22 23:48:25,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:25,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:25,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722423795] [2022-07-22 23:48:25,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722423795] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:25,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:25,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 23:48:25,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939026897] [2022-07-22 23:48:25,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:25,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 23:48:25,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:25,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 23:48:25,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:48:25,886 INFO L87 Difference]: Start difference. First operand 23897 states and 33910 transitions. Second operand has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 6 states have internal predecessors, (299), 2 states have call successors, (97), 2 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-22 23:48:28,167 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:48:29,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:29,296 INFO L93 Difference]: Finished difference Result 49559 states and 70551 transitions. [2022-07-22 23:48:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 23:48:29,297 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 6 states have internal predecessors, (299), 2 states have call successors, (97), 2 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 2 states have call successors, (96) Word has length 729 [2022-07-22 23:48:29,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:29,398 INFO L225 Difference]: With dead ends: 49559 [2022-07-22 23:48:29,398 INFO L226 Difference]: Without dead ends: 25713 [2022-07-22 23:48:29,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 725 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-07-22 23:48:29,490 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 1289 mSDsluCounter, 12466 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 235 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 15117 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:29,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 15117 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 38 Invalid, 1 Unknown, 0 Unchecked, 2.5s Time] [2022-07-22 23:48:29,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25713 states. [2022-07-22 23:48:30,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25713 to 23913. [2022-07-22 23:48:30,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23913 states, 16689 states have (on average 1.3215291509377434) internal successors, (22055), 16953 states have internal predecessors, (22055), 5905 states have call successors, (5905), 1311 states have call predecessors, (5905), 1318 states have return successors, (5966), 5848 states have call predecessors, (5966), 5904 states have call successors, (5966) [2022-07-22 23:48:30,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23913 states to 23913 states and 33926 transitions. [2022-07-22 23:48:30,661 INFO L78 Accepts]: Start accepts. Automaton has 23913 states and 33926 transitions. Word has length 729 [2022-07-22 23:48:30,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:30,662 INFO L495 AbstractCegarLoop]: Abstraction has 23913 states and 33926 transitions. [2022-07-22 23:48:30,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 42.714285714285715) internal successors, (299), 6 states have internal predecessors, (299), 2 states have call successors, (97), 2 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-22 23:48:30,663 INFO L276 IsEmpty]: Start isEmpty. Operand 23913 states and 33926 transitions. [2022-07-22 23:48:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-22 23:48:30,716 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:30,716 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:30,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:30,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:30,936 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:30,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1145833885, now seen corresponding path program 1 times [2022-07-22 23:48:30,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:30,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1483591459] [2022-07-22 23:48:30,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:30,939 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:30,939 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:30,942 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:30,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-22 23:48:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:33,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-22 23:48:33,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:34,025 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 320 proven. 6 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2022-07-22 23:48:34,025 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:48:35,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2022-07-22 23:48:35,143 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:35,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1483591459] [2022-07-22 23:48:35,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1483591459] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 23:48:35,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 23:48:35,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-22 23:48:35,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948110036] [2022-07-22 23:48:35,144 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 23:48:35,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 23:48:35,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:35,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 23:48:35,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:48:35,146 INFO L87 Difference]: Start difference. First operand 23913 states and 33926 transitions. Second operand has 12 states, 12 states have (on average 40.166666666666664) internal successors, (482), 10 states have internal predecessors, (482), 6 states have call successors, (178), 3 states have call predecessors, (178), 5 states have return successors, (178), 8 states have call predecessors, (178), 6 states have call successors, (178) [2022-07-22 23:48:39,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:48:49,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:49,487 INFO L93 Difference]: Finished difference Result 67242 states and 96968 transitions. [2022-07-22 23:48:49,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-22 23:48:49,489 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 40.166666666666664) internal successors, (482), 10 states have internal predecessors, (482), 6 states have call successors, (178), 3 states have call predecessors, (178), 5 states have return successors, (178), 8 states have call predecessors, (178), 6 states have call successors, (178) Word has length 749 [2022-07-22 23:48:49,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:49,635 INFO L225 Difference]: With dead ends: 67242 [2022-07-22 23:48:49,635 INFO L226 Difference]: Without dead ends: 43380 [2022-07-22 23:48:49,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1522 GetRequests, 1493 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=215, Invalid=715, Unknown=0, NotChecked=0, Total=930 [2022-07-22 23:48:49,690 INFO L413 NwaCegarLoop]: 4680 mSDtfsCounter, 5678 mSDsluCounter, 32166 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1797 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 36846 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 1797 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.6s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:49,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5909 Valid, 36846 Invalid, 3745 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [1797 Valid, 1947 Invalid, 1 Unknown, 0 Unchecked, 11.6s Time] [2022-07-22 23:48:49,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43380 states. [2022-07-22 23:48:51,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43380 to 31362. [2022-07-22 23:48:51,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31362 states, 22004 states have (on average 1.3220323577531359) internal successors, (29090), 22346 states have internal predecessors, (29090), 7613 states have call successors, (7613), 1721 states have call predecessors, (7613), 1744 states have return successors, (7746), 7556 states have call predecessors, (7746), 7612 states have call successors, (7746) [2022-07-22 23:48:51,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31362 states to 31362 states and 44449 transitions. [2022-07-22 23:48:51,436 INFO L78 Accepts]: Start accepts. Automaton has 31362 states and 44449 transitions. Word has length 749 [2022-07-22 23:48:51,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:51,437 INFO L495 AbstractCegarLoop]: Abstraction has 31362 states and 44449 transitions. [2022-07-22 23:48:51,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 40.166666666666664) internal successors, (482), 10 states have internal predecessors, (482), 6 states have call successors, (178), 3 states have call predecessors, (178), 5 states have return successors, (178), 8 states have call predecessors, (178), 6 states have call successors, (178) [2022-07-22 23:48:51,437 INFO L276 IsEmpty]: Start isEmpty. Operand 31362 states and 44449 transitions. [2022-07-22 23:48:51,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-22 23:48:51,495 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:51,495 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:51,566 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:51,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:51,704 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:51,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:51,705 INFO L85 PathProgramCache]: Analyzing trace with hash -235595233, now seen corresponding path program 1 times [2022-07-22 23:48:51,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:51,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239412445] [2022-07-22 23:48:51,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:51,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:51,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:51,709 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:51,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-22 23:48:53,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:53,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 23:48:53,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:54,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-22 23:48:54,074 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:48:54,075 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:48:54,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239412445] [2022-07-22 23:48:54,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239412445] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:48:54,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:48:54,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 23:48:54,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350466950] [2022-07-22 23:48:54,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:48:54,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 23:48:54,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:48:54,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 23:48:54,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 23:48:54,077 INFO L87 Difference]: Start difference. First operand 31362 states and 44449 transitions. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-22 23:48:55,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:48:55,245 INFO L93 Difference]: Finished difference Result 62502 states and 88596 transitions. [2022-07-22 23:48:55,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-22 23:48:55,246 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) Word has length 749 [2022-07-22 23:48:55,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:48:55,344 INFO L225 Difference]: With dead ends: 62502 [2022-07-22 23:48:55,344 INFO L226 Difference]: Without dead ends: 31538 [2022-07-22 23:48:55,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 749 GetRequests, 746 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 23:48:55,410 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 26 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6705 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 23:48:55,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6705 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 23:48:55,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31538 states. [2022-07-22 23:48:56,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31538 to 31394. [2022-07-22 23:48:56,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31394 states, 22028 states have (on average 1.3213183221354639) internal successors, (29106), 22370 states have internal predecessors, (29106), 7621 states have call successors, (7621), 1721 states have call predecessors, (7621), 1744 states have return successors, (7754), 7564 states have call predecessors, (7754), 7620 states have call successors, (7754) [2022-07-22 23:48:56,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31394 states to 31394 states and 44481 transitions. [2022-07-22 23:48:56,590 INFO L78 Accepts]: Start accepts. Automaton has 31394 states and 44481 transitions. Word has length 749 [2022-07-22 23:48:56,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:48:56,591 INFO L495 AbstractCegarLoop]: Abstraction has 31394 states and 44481 transitions. [2022-07-22 23:48:56,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 3 states have call successors, (97), 2 states have call predecessors, (97), 2 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-22 23:48:56,591 INFO L276 IsEmpty]: Start isEmpty. Operand 31394 states and 44481 transitions. [2022-07-22 23:48:56,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-22 23:48:56,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:48:56,639 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:48:56,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-07-22 23:48:56,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:48:56,840 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:48:56,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:48:56,840 INFO L85 PathProgramCache]: Analyzing trace with hash -2052465123, now seen corresponding path program 1 times [2022-07-22 23:48:56,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:48:56,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [303086350] [2022-07-22 23:48:56,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:48:56,843 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:48:56,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:48:56,844 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:48:56,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-22 23:48:59,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:48:59,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 3415 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-22 23:48:59,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:48:59,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 341 proven. 6 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-07-22 23:48:59,715 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 23:49:00,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-07-22 23:49:00,355 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:49:00,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [303086350] [2022-07-22 23:49:00,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [303086350] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-22 23:49:00,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-22 23:49:00,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-22 23:49:00,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905495897] [2022-07-22 23:49:00,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:49:00,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 23:49:00,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:49:00,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 23:49:00,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-22 23:49:00,358 INFO L87 Difference]: Start difference. First operand 31394 states and 44481 transitions. Second operand has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-22 23:49:02,689 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:03,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:49:03,786 INFO L93 Difference]: Finished difference Result 64400 states and 91492 transitions. [2022-07-22 23:49:03,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 23:49:03,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) Word has length 749 [2022-07-22 23:49:03,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:49:03,904 INFO L225 Difference]: With dead ends: 64400 [2022-07-22 23:49:03,904 INFO L226 Difference]: Without dead ends: 33404 [2022-07-22 23:49:03,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1499 GetRequests, 1487 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2022-07-22 23:49:03,984 INFO L413 NwaCegarLoop]: 2621 mSDtfsCounter, 558 mSDsluCounter, 7197 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 107 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 558 SdHoareTripleChecker+Valid, 9818 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-07-22 23:49:03,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [558 Valid, 9818 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 16 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-07-22 23:49:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33404 states. [2022-07-22 23:49:05,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33404 to 31418. [2022-07-22 23:49:05,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31418 states, 22052 states have (on average 1.3209686196263377) internal successors, (29130), 22394 states have internal predecessors, (29130), 7621 states have call successors, (7621), 1721 states have call predecessors, (7621), 1744 states have return successors, (7754), 7564 states have call predecessors, (7754), 7620 states have call successors, (7754) [2022-07-22 23:49:05,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31418 states to 31418 states and 44505 transitions. [2022-07-22 23:49:05,254 INFO L78 Accepts]: Start accepts. Automaton has 31418 states and 44505 transitions. Word has length 749 [2022-07-22 23:49:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:49:05,255 INFO L495 AbstractCegarLoop]: Abstraction has 31418 states and 44505 transitions. [2022-07-22 23:49:05,256 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 58.4) internal successors, (292), 5 states have internal predecessors, (292), 2 states have call successors, (97), 2 states have call predecessors, (97), 1 states have return successors, (96), 2 states have call predecessors, (96), 2 states have call successors, (96) [2022-07-22 23:49:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 31418 states and 44505 transitions. [2022-07-22 23:49:05,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-22 23:49:05,300 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:49:05,301 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:49:05,388 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-22 23:49:05,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:49:05,511 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:49:05,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:49:05,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1273217471, now seen corresponding path program 1 times [2022-07-22 23:49:05,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:49:05,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [15388288] [2022-07-22 23:49:05,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:49:05,514 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:49:05,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:49:05,516 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:49:05,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-22 23:49:07,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:49:07,834 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-22 23:49:07,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:49:08,270 INFO L356 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-07-22 23:49:08,271 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 69 treesize of output 21 [2022-07-22 23:49:10,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-07-22 23:49:10,376 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:49:10,377 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:49:10,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [15388288] [2022-07-22 23:49:10,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [15388288] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:49:10,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:49:10,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:49:10,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429951858] [2022-07-22 23:49:10,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:49:10,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:49:10,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:49:10,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:49:10,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:49:10,380 INFO L87 Difference]: Start difference. First operand 31418 states and 44505 transitions. Second operand has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 3 states have call successors, (97), 3 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-22 23:49:13,354 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:15,359 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:18,459 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.63s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:19,574 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:28,796 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:30,801 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:32,806 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:38,960 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:41,287 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:43,300 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:46,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:49,003 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:51,671 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:53,682 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:56,744 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:49:59,706 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:01,721 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:03,838 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:05,854 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:10,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:12,068 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:14,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:16,186 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-22 23:50:16,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:50:16,749 INFO L93 Difference]: Finished difference Result 65816 states and 93198 transitions. [2022-07-22 23:50:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:50:16,751 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 3 states have call successors, (97), 3 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) Word has length 759 [2022-07-22 23:50:16,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:50:16,848 INFO L225 Difference]: With dead ends: 65816 [2022-07-22 23:50:16,848 INFO L226 Difference]: Without dead ends: 34796 [2022-07-22 23:50:16,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 753 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-22 23:50:16,904 INFO L413 NwaCegarLoop]: 2730 mSDtfsCounter, 623 mSDsluCounter, 9593 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 1 mSolverCounterUnsat, 19 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 61.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 19 IncrementalHoareTripleChecker+Unknown, 468 IncrementalHoareTripleChecker+Unchecked, 62.9s IncrementalHoareTripleChecker+Time [2022-07-22 23:50:16,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 12323 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 496 Invalid, 19 Unknown, 468 Unchecked, 62.9s Time] [2022-07-22 23:50:16,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34796 states. [2022-07-22 23:50:18,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34796 to 34356. [2022-07-22 23:50:18,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34356 states, 24268 states have (on average 1.3235124443711883) internal successors, (32119), 24684 states have internal predecessors, (32119), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1952 states have return successors, (8326), 8028 states have call predecessors, (8326), 8134 states have call successors, (8326) [2022-07-22 23:50:18,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34356 states to 34356 states and 48580 transitions. [2022-07-22 23:50:18,321 INFO L78 Accepts]: Start accepts. Automaton has 34356 states and 48580 transitions. Word has length 759 [2022-07-22 23:50:18,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 23:50:18,322 INFO L495 AbstractCegarLoop]: Abstraction has 34356 states and 48580 transitions. [2022-07-22 23:50:18,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 52.0) internal successors, (312), 6 states have internal predecessors, (312), 3 states have call successors, (97), 3 states have call predecessors, (97), 3 states have return successors, (96), 3 states have call predecessors, (96), 3 states have call successors, (96) [2022-07-22 23:50:18,322 INFO L276 IsEmpty]: Start isEmpty. Operand 34356 states and 48580 transitions. [2022-07-22 23:50:18,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-22 23:50:18,369 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 23:50:18,370 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 23:50:18,447 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-22 23:50:18,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-22 23:50:18,571 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 23:50:18,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 23:50:18,571 INFO L85 PathProgramCache]: Analyzing trace with hash -1458326017, now seen corresponding path program 1 times [2022-07-22 23:50:18,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-22 23:50:18,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [612915405] [2022-07-22 23:50:18,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 23:50:18,575 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-22 23:50:18,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-22 23:50:18,576 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-22 23:50:18,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-22 23:50:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 23:50:21,167 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 23:50:21,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 23:50:21,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2022-07-22 23:50:21,304 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 23:50:21,304 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-22 23:50:21,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [612915405] [2022-07-22 23:50:21,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [612915405] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 23:50:21,305 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 23:50:21,305 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 23:50:21,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817634070] [2022-07-22 23:50:21,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 23:50:21,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 23:50:21,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-22 23:50:21,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 23:50:21,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 23:50:21,313 INFO L87 Difference]: Start difference. First operand 34356 states and 48580 transitions. Second operand has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 5 states have internal predecessors, (328), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-22 23:50:23,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 23:50:23,320 INFO L93 Difference]: Finished difference Result 81178 states and 116741 transitions. [2022-07-22 23:50:23,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 23:50:23,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 54.666666666666664) internal successors, (328), 5 states have internal predecessors, (328), 2 states have call successors, (101), 2 states have call predecessors, (101), 3 states have return successors, (100), 3 states have call predecessors, (100), 2 states have call successors, (100) Word has length 759 [2022-07-22 23:50:23,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 23:50:23,495 INFO L225 Difference]: With dead ends: 81178 [2022-07-22 23:50:23,495 INFO L226 Difference]: Without dead ends: 47220