./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 f4b24e32 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-?-f4b24e3 [2022-07-14 00:10:24,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:10:24,434 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:10:24,471 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:10:24,471 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:10:24,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:10:24,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:10:24,475 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:10:24,476 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:10:24,482 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:10:24,483 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:10:24,485 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:10:24,485 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:10:24,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:10:24,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:10:24,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:10:24,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:10:24,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:10:24,492 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:10:24,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:10:24,499 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:10:24,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:10:24,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:10:24,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:10:24,502 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:10:24,507 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:10:24,507 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:10:24,508 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:10:24,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:10:24,509 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:10:24,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:10:24,510 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:10:24,512 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:10:24,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:10:24,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:10:24,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:10:24,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:10:24,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:10:24,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:10:24,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:10:24,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:10:24,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:10:24,517 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-14 00:10:24,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:10:24,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:10:24,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:10:24,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:10:24,541 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:10:24,541 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:10:24,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:10:24,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:10:24,542 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:10:24,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:10:24,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 00:10:24,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:10:24,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:10:24,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:10:24,543 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:10:24,543 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:10:24,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:10:24,544 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:10:24,544 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:10:24,544 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:10:24,544 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:10:24,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:10:24,545 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:10:24,545 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:10:24,545 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:10:24,545 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 00:10:24,545 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 00:10:24,545 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:10:24,545 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:10:24,546 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:10:24,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-14 00:10:24,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:10:24,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:10:24,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:10:24,737 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:10:24,737 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:10:24,738 INFO L432 ainManager$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 [2022-07-14 00:10:24,831 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe07c45a0/afeea8e39fd440ea814535aced43e5c7/FLAG0bd437961 [2022-07-14 00:10:25,454 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:10:25,455 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 [2022-07-14 00:10:25,496 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe07c45a0/afeea8e39fd440ea814535aced43e5c7/FLAG0bd437961 [2022-07-14 00:10:25,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe07c45a0/afeea8e39fd440ea814535aced43e5c7 [2022-07-14 00:10:25,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:10:25,604 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:10:25,606 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:10:25,606 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:10:25,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:10:25,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:10:25" (1/1) ... [2022-07-14 00:10:25,610 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c8772ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:25, skipping insertion in model container [2022-07-14 00:10:25,610 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:10:25" (1/1) ... [2022-07-14 00:10:25,614 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:10:25,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:10:26,393 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] [2022-07-14 00:10:26,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:10:26,908 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:10:27,011 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] [2022-07-14 00:10:27,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:10:27,281 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:10:27,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27 WrapperNode [2022-07-14 00:10:27,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:10:27,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:10:27,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:10:27,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:10:27,288 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,349 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,503 INFO L137 Inliner]: procedures = 310, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 5104 [2022-07-14 00:10:27,503 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:10:27,504 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:10:27,504 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:10:27,504 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:10:27,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,546 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,547 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,682 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:10:27,683 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:10:27,683 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:10:27,683 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:10:27,684 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (1/1) ... [2022-07-14 00:10:27,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:10:27,697 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:10:27,708 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) [2022-07-14 00:10:27,714 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 [2022-07-14 00:10:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 00:10:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 00:10:27,740 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-14 00:10:27,740 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-14 00:10:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:10:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:10:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 00:10:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 00:10:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-14 00:10:27,741 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-14 00:10:27,741 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:10:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:10:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-14 00:10:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-14 00:10:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:10:27,742 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:10:27,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:10:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:10:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-14 00:10:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-14 00:10:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 00:10:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-14 00:10:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-14 00:10:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-14 00:10:27,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-14 00:10:27,743 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 00:10:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 00:10:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-14 00:10:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-14 00:10:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:10:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:10:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 00:10:27,744 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 00:10:27,744 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 00:10:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 00:10:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 00:10:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 00:10:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:10:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:10:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-14 00:10:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-14 00:10:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:10:27,745 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:10:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-14 00:10:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-14 00:10:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:10:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-14 00:10:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-14 00:10:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-14 00:10:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-14 00:10:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 00:10:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 00:10:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 00:10:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 00:10:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:10:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 00:10:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 00:10:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:10:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:10:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 00:10:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 00:10:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 00:10:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 00:10:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-14 00:10:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-14 00:10:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-14 00:10:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 00:10:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 00:10:27,748 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:10:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:10:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-14 00:10:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-14 00:10:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 00:10:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 00:10:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:10:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 00:10:27,749 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 00:10:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:10:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:10:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:10:27,750 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:10:27,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:10:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:10:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:10:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-07-14 00:10:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:10:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:10:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:10:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:10:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:10:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:10:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-07-14 00:10:27,752 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-14 00:10:27,752 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-14 00:10:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-14 00:10:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-14 00:10:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-14 00:10:27,753 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-14 00:10:27,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-14 00:10:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:10:27,754 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:10:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:10:27,754 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:10:27,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 00:10:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 00:10:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-14 00:10:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-14 00:10:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:10:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:10:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:10:27,755 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:10:27,755 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 00:10:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 00:10:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-14 00:10:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 00:10:27,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 00:10:27,756 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 00:10:27,757 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 00:10:27,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:10:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:10:27,759 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-14 00:10:27,759 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-14 00:10:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:10:27,760 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 00:10:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 00:10:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 00:10:27,761 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 00:10:27,761 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-14 00:10:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-14 00:10:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:10:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-14 00:10:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-14 00:10:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-14 00:10:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-14 00:10:27,767 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-14 00:10:27,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-14 00:10:27,768 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 00:10:27,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 00:10:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:10:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:10:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:10:27,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:10:27,770 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-14 00:10:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-14 00:10:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-14 00:10:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-14 00:10:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-14 00:10:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-14 00:10:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-14 00:10:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-14 00:10:27,771 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-14 00:10:27,771 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-14 00:10:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 00:10:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 00:10:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-14 00:10:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-14 00:10:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:10:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:10:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-14 00:10:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-14 00:10:27,772 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-14 00:10:27,772 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-14 00:10:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:10:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:10:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 00:10:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-14 00:10:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-14 00:10:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-14 00:10:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-14 00:10:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-14 00:10:27,773 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-14 00:10:27,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:10:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:10:27,774 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:10:27,774 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:10:28,328 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:10:28,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:10:28,497 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:10:30,973 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:10:31,000 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:10:31,001 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:10:31,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:10:31 BoogieIcfgContainer [2022-07-14 00:10:31,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:10:31,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:10:31,005 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:10:31,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:10:31,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:10:25" (1/3) ... [2022-07-14 00:10:31,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30256a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:10:31, skipping insertion in model container [2022-07-14 00:10:31,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:27" (2/3) ... [2022-07-14 00:10:31,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30256a9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:10:31, skipping insertion in model container [2022-07-14 00:10:31,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:10:31" (3/3) ... [2022-07-14 00:10:31,010 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 [2022-07-14 00:10:31,019 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:10:31,019 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:10:31,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:10:31,080 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@292356e3, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5475f8d [2022-07-14 00:10:31,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:10:31,088 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) [2022-07-14 00:10:31,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-14 00:10:31,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:31,099 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] [2022-07-14 00:10:31,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:31,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:31,103 INFO L85 PathProgramCache]: Analyzing trace with hash 497767634, now seen corresponding path program 1 times [2022-07-14 00:10:31,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:10:31,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085325002] [2022-07-14 00:10:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:31,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:10:31,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:10:31,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:10:31,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:10:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:10:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:10:31,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:10:31,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:10:31,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:10:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:10:31,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:10:31,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:31,651 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-14 00:10:31,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:10:31,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085325002] [2022-07-14 00:10:31,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085325002] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:31,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:31,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:10:31,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756018369] [2022-07-14 00:10:31,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:31,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:10:31,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:10:31,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:10:31,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:10:31,678 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) [2022-07-14 00:10:35,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:35,729 INFO L93 Difference]: Finished difference Result 5490 states and 8345 transitions. [2022-07-14 00:10:35,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:10:35,742 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 [2022-07-14 00:10:35,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:35,780 INFO L225 Difference]: With dead ends: 5490 [2022-07-14 00:10:35,781 INFO L226 Difference]: Without dead ends: 3626 [2022-07-14 00:10:35,794 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 [2022-07-14 00:10:35,796 INFO L413 NwaCegarLoop]: 2741 mSDtfsCounter, 3241 mSDsluCounter, 2525 mSDsCounter, 0 mSdLazyCounter, 2155 mSolverCounterSat, 1196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3627 SdHoareTripleChecker+Valid, 5266 SdHoareTripleChecker+Invalid, 3351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 2155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:35,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3627 Valid, 5266 Invalid, 3351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1196 Valid, 2155 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-07-14 00:10:35,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3626 states. [2022-07-14 00:10:36,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3626 to 3448. [2022-07-14 00:10:36,027 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) [2022-07-14 00:10:36,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3448 states to 3448 states and 4890 transitions. [2022-07-14 00:10:36,047 INFO L78 Accepts]: Start accepts. Automaton has 3448 states and 4890 transitions. Word has length 80 [2022-07-14 00:10:36,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:36,049 INFO L495 AbstractCegarLoop]: Abstraction has 3448 states and 4890 transitions. [2022-07-14 00:10:36,049 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) [2022-07-14 00:10:36,049 INFO L276 IsEmpty]: Start isEmpty. Operand 3448 states and 4890 transitions. [2022-07-14 00:10:36,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-07-14 00:10:36,060 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:36,060 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] [2022-07-14 00:10:36,060 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 00:10:36,061 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:36,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:36,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1152572705, now seen corresponding path program 1 times [2022-07-14 00:10:36,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:10:36,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221264685] [2022-07-14 00:10:36,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:36,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:10:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:10:36,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:10:36,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:10:36,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:10:36,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:10:36,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:10:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:10:36,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:10:36,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:10:36,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:10:36,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:36,338 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-14 00:10:36,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 00:10:36,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221264685] [2022-07-14 00:10:36,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221264685] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:10:36,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:10:36,340 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:10:36,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027229083] [2022-07-14 00:10:36,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:10:36,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:10:36,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 00:10:36,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:10:36,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:10:36,344 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) [2022-07-14 00:10:41,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:10:41,388 INFO L93 Difference]: Finished difference Result 10645 states and 15172 transitions. [2022-07-14 00:10:41,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:10:41,389 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 [2022-07-14 00:10:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:10:41,420 INFO L225 Difference]: With dead ends: 10645 [2022-07-14 00:10:41,420 INFO L226 Difference]: Without dead ends: 7218 [2022-07-14 00:10:41,430 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 [2022-07-14 00:10:41,432 INFO L413 NwaCegarLoop]: 2704 mSDtfsCounter, 3172 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 5001 mSolverCounterSat, 1167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s 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, 4.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:10:41,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3572 Valid, 8262 Invalid, 6168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1167 Valid, 5001 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2022-07-14 00:10:41,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7218 states. [2022-07-14 00:10:41,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7218 to 6934. [2022-07-14 00:10:41,620 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) [2022-07-14 00:10:41,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6934 states to 6934 states and 9845 transitions. [2022-07-14 00:10:41,641 INFO L78 Accepts]: Start accepts. Automaton has 6934 states and 9845 transitions. Word has length 85 [2022-07-14 00:10:41,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:10:41,642 INFO L495 AbstractCegarLoop]: Abstraction has 6934 states and 9845 transitions. [2022-07-14 00:10:41,642 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) [2022-07-14 00:10:41,642 INFO L276 IsEmpty]: Start isEmpty. Operand 6934 states and 9845 transitions. [2022-07-14 00:10:41,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 483 [2022-07-14 00:10:41,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:10:41,663 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] [2022-07-14 00:10:41,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 00:10:41,663 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:10:41,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:10:41,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1563537257, now seen corresponding path program 1 times [2022-07-14 00:10:41,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 00:10:41,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918596578] [2022-07-14 00:10:41,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:10:41,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 00:10:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-14 00:10:41,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-07-14 00:10:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-07-14 00:10:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-14 00:10:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2022-07-14 00:10:41,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-07-14 00:10:41,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2022-07-14 00:10:41,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:41,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-14 00:10:41,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:10:42,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2022-07-14 00:10:42,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2022-07-14 00:10:42,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:10:42,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-07-14 00:10:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-14 00:10:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-07-14 00:10:42,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-07-14 00:10:42,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-14 00:10:42,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-14 00:10:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-14 00:10:42,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2022-07-14 00:10:42,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-14 00:10:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2022-07-14 00:10:42,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:10:42,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-14 00:10:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-07-14 00:10:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2022-07-14 00:10:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-07-14 00:10:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-14 00:10:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-07-14 00:10:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2022-07-14 00:10:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2022-07-14 00:10:42,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2022-07-14 00:10:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-14 00:10:42,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-07-14 00:10:42,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-07-14 00:10:42,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-07-14 00:10:42,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-07-14 00:10:42,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-07-14 00:10:42,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-07-14 00:10:42,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2022-07-14 00:10:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2022-07-14 00:10:42,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2022-07-14 00:10:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2022-07-14 00:10:42,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-07-14 00:10:42,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2022-07-14 00:10:42,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2022-07-14 00:10:42,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2022-07-14 00:10:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2022-07-14 00:10:42,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2022-07-14 00:10:42,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2022-07-14 00:10:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:10:42,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2022-07-14 00:10:42,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 00:10:42,461 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) [2022-07-14 00:10:42,465 INFO L158 Benchmark]: Toolchain (without parser) took 16861.16ms. Allocated memory was 94.4MB in the beginning and 706.7MB in the end (delta: 612.4MB). Free memory was 67.0MB in the beginning and 311.4MB in the end (delta: -244.4MB). Peak memory consumption was 368.5MB. Max. memory is 16.1GB. [2022-07-14 00:10:42,466 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 00:10:42,466 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1676.96ms. Allocated memory was 94.4MB in the beginning and 182.5MB in the end (delta: 88.1MB). Free memory was 67.0MB in the beginning and 97.6MB in the end (delta: -30.6MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. [2022-07-14 00:10:42,466 INFO L158 Benchmark]: Boogie Procedure Inliner took 219.85ms. Allocated memory is still 182.5MB. Free memory was 97.6MB in the beginning and 105.9MB in the end (delta: -8.3MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2022-07-14 00:10:42,467 INFO L158 Benchmark]: Boogie Preprocessor took 178.77ms. Allocated memory is still 182.5MB. Free memory was 105.9MB in the beginning and 76.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-07-14 00:10:42,467 INFO L158 Benchmark]: RCFGBuilder took 3320.64ms. Allocated memory was 182.5MB in the beginning and 304.1MB in the end (delta: 121.6MB). Free memory was 76.5MB in the beginning and 129.1MB in the end (delta: -52.6MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. [2022-07-14 00:10:42,467 INFO L158 Benchmark]: TraceAbstraction took 11459.99ms. Allocated memory was 304.1MB in the beginning and 706.7MB in the end (delta: 402.7MB). Free memory was 128.1MB in the beginning and 311.4MB in the end (delta: -183.3MB). Peak memory consumption was 219.3MB. Max. memory is 16.1GB. [2022-07-14 00:10:42,469 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 94.4MB. Free memory was 48.6MB in the beginning and 48.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1676.96ms. Allocated memory was 94.4MB in the beginning and 182.5MB in the end (delta: 88.1MB). Free memory was 67.0MB in the beginning and 97.6MB in the end (delta: -30.6MB). Peak memory consumption was 86.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 219.85ms. Allocated memory is still 182.5MB. Free memory was 97.6MB in the beginning and 105.9MB in the end (delta: -8.3MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Boogie Preprocessor took 178.77ms. Allocated memory is still 182.5MB. Free memory was 105.9MB in the beginning and 76.5MB in the end (delta: 29.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3320.64ms. Allocated memory was 182.5MB in the beginning and 304.1MB in the end (delta: 121.6MB). Free memory was 76.5MB in the beginning and 129.1MB in the end (delta: -52.6MB). Peak memory consumption was 103.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11459.99ms. Allocated memory was 304.1MB in the beginning and 706.7MB in the end (delta: 402.7MB). Free memory was 128.1MB in the beginning and 311.4MB in the end (delta: -183.3MB). Peak memory consumption was 219.3MB. 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. [2022-07-14 00:10:42,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, 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-?-f4b24e3 [2022-07-14 00:10:44,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 00:10:44,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 00:10:44,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 00:10:44,105 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 00:10:44,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 00:10:44,107 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 00:10:44,108 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 00:10:44,111 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 00:10:44,114 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 00:10:44,116 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 00:10:44,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 00:10:44,120 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 00:10:44,121 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 00:10:44,123 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 00:10:44,125 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 00:10:44,126 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 00:10:44,127 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 00:10:44,129 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 00:10:44,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 00:10:44,133 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 00:10:44,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 00:10:44,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 00:10:44,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 00:10:44,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 00:10:44,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 00:10:44,151 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 00:10:44,151 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 00:10:44,152 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 00:10:44,152 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 00:10:44,153 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 00:10:44,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 00:10:44,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 00:10:44,155 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 00:10:44,156 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 00:10:44,156 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 00:10:44,156 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 00:10:44,157 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 00:10:44,157 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 00:10:44,157 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 00:10:44,158 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 00:10:44,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 00:10:44,162 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-07-14 00:10:44,184 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 00:10:44,185 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 00:10:44,185 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 00:10:44,185 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 00:10:44,186 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 00:10:44,186 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 00:10:44,186 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 00:10:44,187 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 00:10:44,187 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 00:10:44,187 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 00:10:44,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 00:10:44,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 00:10:44,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 00:10:44,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 00:10:44,188 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-07-14 00:10:44,189 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-07-14 00:10:44,189 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-07-14 00:10:44,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 00:10:44,189 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 00:10:44,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 00:10:44,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 00:10:44,190 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 00:10:44,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 00:10:44,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:10:44,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 00:10:44,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 00:10:44,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 00:10:44,191 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-07-14 00:10:44,191 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-07-14 00:10:44,191 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-14 00:10:44,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-14 00:10:44,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 00:10:44,191 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-07-14 00:10:44,192 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 26d71a6766df17a2d23a86b348a9251fef4bcae90cf6020641e74c486ac2b1eb [2022-07-14 00:10:44,440 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 00:10:44,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 00:10:44,463 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 00:10:44,464 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 00:10:44,464 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 00:10:44,465 INFO L432 ainManager$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 [2022-07-14 00:10:44,506 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c7c133d/73b2df636a3243b5a365258860ffc6ad/FLAGb4dfe540d [2022-07-14 00:10:45,145 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 00:10:45,145 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 [2022-07-14 00:10:45,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c7c133d/73b2df636a3243b5a365258860ffc6ad/FLAGb4dfe540d [2022-07-14 00:10:45,497 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98c7c133d/73b2df636a3243b5a365258860ffc6ad [2022-07-14 00:10:45,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 00:10:45,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 00:10:45,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 00:10:45,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 00:10:45,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 00:10:45,504 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:10:45" (1/1) ... [2022-07-14 00:10:45,505 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@786c942e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:45, skipping insertion in model container [2022-07-14 00:10:45,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 12:10:45" (1/1) ... [2022-07-14 00:10:45,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 00:10:45,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:10:46,303 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] [2022-07-14 00:10:46,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:10:46,999 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-07-14 00:10:47,043 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 00:10:47,145 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] [2022-07-14 00:10:47,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:10:47,322 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 00:10:47,438 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] [2022-07-14 00:10:47,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 00:10:47,687 INFO L208 MainTranslator]: Completed translation [2022-07-14 00:10:47,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47 WrapperNode [2022-07-14 00:10:47,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 00:10:47,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 00:10:47,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 00:10:47,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 00:10:47,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:47,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:47,873 INFO L137 Inliner]: procedures = 324, calls = 1780, calls flagged for inlining = 174, calls inlined = 157, statements flattened = 4537 [2022-07-14 00:10:47,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 00:10:47,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 00:10:47,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 00:10:47,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 00:10:47,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:47,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:47,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:47,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:47,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:48,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:48,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:48,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 00:10:48,072 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 00:10:48,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 00:10:48,073 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 00:10:48,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (1/1) ... [2022-07-14 00:10:48,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 00:10:48,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 00:10:48,104 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) [2022-07-14 00:10:48,114 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 [2022-07-14 00:10:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-07-14 00:10:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2022-07-14 00:10:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2022-07-14 00:10:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2022-07-14 00:10:48,131 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2022-07-14 00:10:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-07-14 00:10:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-07-14 00:10:48,131 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-07-14 00:10:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-07-14 00:10:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-07-14 00:10:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2022-07-14 00:10:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2022-07-14 00:10:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_dmac_soft_reset [2022-07-14 00:10:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_dmac_soft_reset [2022-07-14 00:10:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-07-14 00:10:48,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-07-14 00:10:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2022-07-14 00:10:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2022-07-14 00:10:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2022-07-14 00:10:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2022-07-14 00:10:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-07-14 00:10:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-07-14 00:10:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_remove [2022-07-14 00:10:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_remove [2022-07-14 00:10:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2022-07-14 00:10:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_send_cmd [2022-07-14 00:10:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_send_cmd [2022-07-14 00:10:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2022-07-14 00:10:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2022-07-14 00:10:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2022-07-14 00:10:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2022-07-14 00:10:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_rx_ring [2022-07-14 00:10:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_rx_ring [2022-07-14 00:10:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-07-14 00:10:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-07-14 00:10:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2022-07-14 00:10:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2022-07-14 00:10:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2022-07-14 00:10:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2022-07-14 00:10:48,135 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-07-14 00:10:48,135 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-07-14 00:10:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-14 00:10:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-14 00:10:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_read [2022-07-14 00:10:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_read [2022-07-14 00:10:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2022-07-14 00:10:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2022-07-14 00:10:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_mac_address [2022-07-14 00:10:48,136 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_mac_address [2022-07-14 00:10:48,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-14 00:10:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_get_stats [2022-07-14 00:10:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_get_stats [2022-07-14 00:10:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_master [2022-07-14 00:10:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_master [2022-07-14 00:10:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2022-07-14 00:10:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2022-07-14 00:10:48,137 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2022-07-14 00:10:48,137 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2022-07-14 00:10:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-14 00:10:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2022-07-14 00:10:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2022-07-14 00:10:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2022-07-14 00:10:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2022-07-14 00:10:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2022-07-14 00:10:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2022-07-14 00:10:48,138 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2022-07-14 00:10:48,138 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2022-07-14 00:10:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2022-07-14 00:10:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_open [2022-07-14 00:10:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_open [2022-07-14 00:10:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2022-07-14 00:10:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2022-07-14 00:10:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2022-07-14 00:10:48,139 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2022-07-14 00:10:48,139 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2022-07-14 00:10:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2022-07-14 00:10:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2022-07-14 00:10:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2022-07-14 00:10:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-07-14 00:10:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-07-14 00:10:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-14 00:10:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-07-14 00:10:48,140 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2022-07-14 00:10:48,140 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2022-07-14 00:10:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2022-07-14 00:10:48,141 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2022-07-14 00:10:48,141 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2022-07-14 00:10:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2022-07-14 00:10:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2022-07-14 00:10:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2022-07-14 00:10:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2022-07-14 00:10:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2022-07-14 00:10:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2022-07-14 00:10:48,142 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2022-07-14 00:10:48,142 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_eeprom_enable_access [2022-07-14 00:10:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_eeprom_enable_access [2022-07-14 00:10:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc_array [2022-07-14 00:10:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc_array [2022-07-14 00:10:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_reg_write [2022-07-14 00:10:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_reg_write [2022-07-14 00:10:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2022-07-14 00:10:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2022-07-14 00:10:48,143 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2022-07-14 00:10:48,143 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2022-07-14 00:10:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_dma_mapping_error [2022-07-14 00:10:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_dma_mapping_error [2022-07-14 00:10:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure pci_choose_state [2022-07-14 00:10:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_choose_state [2022-07-14 00:10:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2022-07-14 00:10:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2022-07-14 00:10:48,144 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-07-14 00:10:48,144 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-07-14 00:10:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2022-07-14 00:10:48,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2022-07-14 00:10:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2022-07-14 00:10:48,145 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2022-07-14 00:10:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2022-07-14 00:10:48,145 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2022-07-14 00:10:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-07-14 00:10:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-07-14 00:10:48,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-07-14 00:10:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-07-14 00:10:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-07-14 00:10:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-07-14 00:10:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_set_multicast_list [2022-07-14 00:10:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_set_multicast_list [2022-07-14 00:10:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-14 00:10:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2022-07-14 00:10:48,146 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2022-07-14 00:10:48,146 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2022-07-14 00:10:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2022-07-14 00:10:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_alloc_rx_buffer [2022-07-14 00:10:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_alloc_rx_buffer [2022-07-14 00:10:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 00:10:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2022-07-14 00:10:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2022-07-14 00:10:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_rx [2022-07-14 00:10:48,147 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_rx [2022-07-14 00:10:48,147 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2022-07-14 00:10:48,148 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2022-07-14 00:10:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2022-07-14 00:10:48,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2022-07-14 00:10:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-14 00:10:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-07-14 00:10:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-07-14 00:10:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-07-14 00:10:48,148 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2022-07-14 00:10:48,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2022-07-14 00:10:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-07-14 00:10:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2022-07-14 00:10:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2022-07-14 00:10:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_isr [2022-07-14 00:10:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_isr [2022-07-14 00:10:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_disable [2022-07-14 00:10:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_disable [2022-07-14 00:10:48,149 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_do_ioctl [2022-07-14 00:10:48,149 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_do_ioctl [2022-07-14 00:10:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_poll_controller [2022-07-14 00:10:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_poll_controller [2022-07-14 00:10:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2022-07-14 00:10:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2022-07-14 00:10:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2022-07-14 00:10:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2022-07-14 00:10:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2022-07-14 00:10:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2022-07-14 00:10:48,150 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_stop_tx [2022-07-14 00:10:48,150 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_stop_tx [2022-07-14 00:10:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2022-07-14 00:10:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2022-07-14 00:10:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-07-14 00:10:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-07-14 00:10:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-07-14 00:10:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_free_tx_ring [2022-07-14 00:10:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_free_tx_ring [2022-07-14 00:10:48,151 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2022-07-14 00:10:48,151 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2022-07-14 00:10:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure smsc9420_pci_flush_write [2022-07-14 00:10:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure smsc9420_pci_flush_write [2022-07-14 00:10:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 00:10:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 00:10:48,152 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2022-07-14 00:10:48,152 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2022-07-14 00:10:48,686 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 00:10:48,688 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 00:10:49,021 INFO L764 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-07-14 00:11:18,220 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 00:11:18,232 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 00:11:18,232 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-14 00:11:18,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:11:18 BoogieIcfgContainer [2022-07-14 00:11:18,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 00:11:18,238 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 00:11:18,238 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 00:11:18,240 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 00:11:18,240 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 12:10:45" (1/3) ... [2022-07-14 00:11:18,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7445f565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:11:18, skipping insertion in model container [2022-07-14 00:11:18,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 12:10:47" (2/3) ... [2022-07-14 00:11:18,241 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7445f565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 12:11:18, skipping insertion in model container [2022-07-14 00:11:18,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 12:11:18" (3/3) ... [2022-07-14 00:11:18,242 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 [2022-07-14 00:11:18,251 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 00:11:18,251 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-14 00:11:18,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 00:11:18,328 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@50c3edc6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@38ac4ed4 [2022-07-14 00:11:18,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-14 00:11:18,336 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) [2022-07-14 00:11:18,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2022-07-14 00:11:18,346 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:18,346 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] [2022-07-14 00:11:18,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:18,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:18,350 INFO L85 PathProgramCache]: Analyzing trace with hash 934868167, now seen corresponding path program 1 times [2022-07-14 00:11:18,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:18,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [172530168] [2022-07-14 00:11:18,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:18,360 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:18,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:18,362 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) [2022-07-14 00:11:18,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-07-14 00:11:19,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:19,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:11:19,077 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:19,137 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-14 00:11:19,137 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:19,137 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:19,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [172530168] [2022-07-14 00:11:19,138 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [172530168] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:19,138 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:19,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:11:19,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256305845] [2022-07-14 00:11:19,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:19,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:11:19,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:19,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:11:19,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:11:19,162 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) [2022-07-14 00:11:19,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:19,307 INFO L93 Difference]: Finished difference Result 3216 states and 4662 transitions. [2022-07-14 00:11:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:11:19,310 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 [2022-07-14 00:11:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:19,332 INFO L225 Difference]: With dead ends: 3216 [2022-07-14 00:11:19,332 INFO L226 Difference]: Without dead ends: 1571 [2022-07-14 00:11:19,341 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 [2022-07-14 00:11:19,343 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 [2022-07-14 00:11:19,343 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] [2022-07-14 00:11:19,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1571 states. [2022-07-14 00:11:19,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1571 to 1571. [2022-07-14 00:11:19,468 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) [2022-07-14 00:11:19,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1571 states to 1571 states and 2241 transitions. [2022-07-14 00:11:19,480 INFO L78 Accepts]: Start accepts. Automaton has 1571 states and 2241 transitions. Word has length 80 [2022-07-14 00:11:19,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:19,481 INFO L495 AbstractCegarLoop]: Abstraction has 1571 states and 2241 transitions. [2022-07-14 00:11:19,482 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) [2022-07-14 00:11:19,482 INFO L276 IsEmpty]: Start isEmpty. Operand 1571 states and 2241 transitions. [2022-07-14 00:11:19,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-07-14 00:11:19,491 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:19,491 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] [2022-07-14 00:11:19,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:19,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:19,703 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:19,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1121554641, now seen corresponding path program 1 times [2022-07-14 00:11:19,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:19,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827750644] [2022-07-14 00:11:19,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:19,707 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:19,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:19,709 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) [2022-07-14 00:11:19,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-07-14 00:11:20,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:20,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:11:20,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:20,487 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-14 00:11:20,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:11:20,624 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2022-07-14 00:11:20,624 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:20,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827750644] [2022-07-14 00:11:20,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827750644] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:11:20,624 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:11:20,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2022-07-14 00:11:20,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306636924] [2022-07-14 00:11:20,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:11:20,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:11:20,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:20,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:11:20,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:11:20,627 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) [2022-07-14 00:11:20,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:20,819 INFO L93 Difference]: Finished difference Result 3119 states and 4451 transitions. [2022-07-14 00:11:20,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:11:20,820 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 [2022-07-14 00:11:20,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:20,830 INFO L225 Difference]: With dead ends: 3119 [2022-07-14 00:11:20,830 INFO L226 Difference]: Without dead ends: 1574 [2022-07-14 00:11:20,835 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 [2022-07-14 00:11:20,836 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 0 mSDsluCounter, 6711 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-07-14 00:11:20,836 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] [2022-07-14 00:11:20,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1574 states. [2022-07-14 00:11:20,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1574 to 1574. [2022-07-14 00:11:20,881 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) [2022-07-14 00:11:20,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1574 states to 1574 states and 2244 transitions. [2022-07-14 00:11:20,888 INFO L78 Accepts]: Start accepts. Automaton has 1574 states and 2244 transitions. Word has length 81 [2022-07-14 00:11:20,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:20,890 INFO L495 AbstractCegarLoop]: Abstraction has 1574 states and 2244 transitions. [2022-07-14 00:11:20,890 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) [2022-07-14 00:11:20,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1574 states and 2244 transitions. [2022-07-14 00:11:20,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-14 00:11:20,892 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:20,892 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] [2022-07-14 00:11:20,915 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:21,107 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:21,107 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:21,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:21,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1225041735, now seen corresponding path program 2 times [2022-07-14 00:11:21,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:21,109 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [680426941] [2022-07-14 00:11:21,109 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 00:11:21,109 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:21,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:21,111 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) [2022-07-14 00:11:21,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-07-14 00:11:21,689 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-14 00:11:21,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 00:11:21,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:11:21,714 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:21,749 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 00:11:21,749 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:21,749 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:21,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [680426941] [2022-07-14 00:11:21,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [680426941] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:21,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:21,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:11:21,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177956214] [2022-07-14 00:11:21,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:21,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:11:21,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:21,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:11:21,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:11:21,751 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) [2022-07-14 00:11:21,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:21,966 INFO L93 Difference]: Finished difference Result 4638 states and 6620 transitions. [2022-07-14 00:11:21,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:11:21,967 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 [2022-07-14 00:11:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:21,981 INFO L225 Difference]: With dead ends: 4638 [2022-07-14 00:11:21,981 INFO L226 Difference]: Without dead ends: 3094 [2022-07-14 00:11:21,987 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 [2022-07-14 00:11:21,987 INFO L413 NwaCegarLoop]: 2648 mSDtfsCounter, 2171 mSDsluCounter, 2221 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:11:21,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2171 Valid, 4869 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:11:21,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3094 states. [2022-07-14 00:11:22,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3094 to 3094. [2022-07-14 00:11:22,132 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) [2022-07-14 00:11:22,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3094 states to 3094 states and 4414 transitions. [2022-07-14 00:11:22,150 INFO L78 Accepts]: Start accepts. Automaton has 3094 states and 4414 transitions. Word has length 84 [2022-07-14 00:11:22,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:22,151 INFO L495 AbstractCegarLoop]: Abstraction has 3094 states and 4414 transitions. [2022-07-14 00:11:22,151 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) [2022-07-14 00:11:22,151 INFO L276 IsEmpty]: Start isEmpty. Operand 3094 states and 4414 transitions. [2022-07-14 00:11:22,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-07-14 00:11:22,153 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:22,153 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] [2022-07-14 00:11:22,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:22,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:22,367 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:22,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:22,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1801508975, now seen corresponding path program 1 times [2022-07-14 00:11:22,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:22,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [601463937] [2022-07-14 00:11:22,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:22,369 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:22,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:22,372 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) [2022-07-14 00:11:22,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-07-14 00:11:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:23,117 INFO L263 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:11:23,120 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:23,265 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2022-07-14 00:11:23,265 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:23,265 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:23,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [601463937] [2022-07-14 00:11:23,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [601463937] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:23,266 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:23,266 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-14 00:11:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362604089] [2022-07-14 00:11:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:23,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:11:23,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:23,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:11:23,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-14 00:11:23,267 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) [2022-07-14 00:11:23,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:23,592 INFO L93 Difference]: Finished difference Result 9219 states and 13174 transitions. [2022-07-14 00:11:23,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:11:23,593 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 [2022-07-14 00:11:23,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:23,625 INFO L225 Difference]: With dead ends: 9219 [2022-07-14 00:11:23,625 INFO L226 Difference]: Without dead ends: 6150 [2022-07-14 00:11:23,639 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 [2022-07-14 00:11:23,640 INFO L413 NwaCegarLoop]: 2683 mSDtfsCounter, 2215 mSDsluCounter, 7567 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-07-14 00:11:23,640 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] [2022-07-14 00:11:23,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2022-07-14 00:11:23,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6150. [2022-07-14 00:11:23,819 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) [2022-07-14 00:11:23,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8783 transitions. [2022-07-14 00:11:23,843 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8783 transitions. Word has length 89 [2022-07-14 00:11:23,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:23,844 INFO L495 AbstractCegarLoop]: Abstraction has 6150 states and 8783 transitions. [2022-07-14 00:11:23,844 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) [2022-07-14 00:11:23,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8783 transitions. [2022-07-14 00:11:23,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2022-07-14 00:11:23,861 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:23,862 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] [2022-07-14 00:11:23,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:24,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:24,076 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:24,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:24,076 INFO L85 PathProgramCache]: Analyzing trace with hash -420332833, now seen corresponding path program 1 times [2022-07-14 00:11:24,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:24,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403618938] [2022-07-14 00:11:24,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:24,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:24,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:24,079 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) [2022-07-14 00:11:24,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-07-14 00:11:25,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:25,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 2428 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:11:25,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:25,642 INFO L134 CoverageAnalysis]: Checked inductivity of 964 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2022-07-14 00:11:25,645 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:25,645 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:25,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403618938] [2022-07-14 00:11:25,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1403618938] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:25,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:25,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:11:25,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114945198] [2022-07-14 00:11:25,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:25,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:11:25,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:25,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:11:25,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:11:25,648 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) [2022-07-14 00:11:26,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:26,183 INFO L93 Difference]: Finished difference Result 17146 states and 24421 transitions. [2022-07-14 00:11:26,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:11:26,184 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 [2022-07-14 00:11:26,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:26,236 INFO L225 Difference]: With dead ends: 17146 [2022-07-14 00:11:26,236 INFO L226 Difference]: Without dead ends: 11026 [2022-07-14 00:11:26,261 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 [2022-07-14 00:11:26,263 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 [2022-07-14 00:11:26,263 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] [2022-07-14 00:11:26,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11026 states. [2022-07-14 00:11:26,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11026 to 10966. [2022-07-14 00:11:26,619 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) [2022-07-14 00:11:26,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10966 states to 10966 states and 15604 transitions. [2022-07-14 00:11:26,669 INFO L78 Accepts]: Start accepts. Automaton has 10966 states and 15604 transitions. Word has length 471 [2022-07-14 00:11:26,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:26,670 INFO L495 AbstractCegarLoop]: Abstraction has 10966 states and 15604 transitions. [2022-07-14 00:11:26,680 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) [2022-07-14 00:11:26,680 INFO L276 IsEmpty]: Start isEmpty. Operand 10966 states and 15604 transitions. [2022-07-14 00:11:26,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 518 [2022-07-14 00:11:26,705 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:26,705 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] [2022-07-14 00:11:26,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:26,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:26,920 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:26,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:26,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1063400336, now seen corresponding path program 1 times [2022-07-14 00:11:26,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:26,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1380043045] [2022-07-14 00:11:26,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:26,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:26,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:26,923 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) [2022-07-14 00:11:26,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-07-14 00:11:28,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:28,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 2556 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:11:28,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 970 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 926 trivial. 0 not checked. [2022-07-14 00:11:28,533 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:28,533 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:28,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1380043045] [2022-07-14 00:11:28,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1380043045] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:28,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:28,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:11:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125142727] [2022-07-14 00:11:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:28,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:11:28,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:28,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:11:28,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:11:28,536 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) [2022-07-14 00:11:28,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:28,975 INFO L93 Difference]: Finished difference Result 28123 states and 40036 transitions. [2022-07-14 00:11:28,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:11:28,975 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 [2022-07-14 00:11:28,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:29,046 INFO L225 Difference]: With dead ends: 28123 [2022-07-14 00:11:29,047 INFO L226 Difference]: Without dead ends: 17187 [2022-07-14 00:11:29,082 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 [2022-07-14 00:11:29,084 INFO L413 NwaCegarLoop]: 3475 mSDtfsCounter, 1766 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-07-14 00:11:29,084 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] [2022-07-14 00:11:29,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17187 states. [2022-07-14 00:11:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17187 to 17179. [2022-07-14 00:11:29,605 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) [2022-07-14 00:11:29,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17179 states to 17179 states and 24458 transitions. [2022-07-14 00:11:29,664 INFO L78 Accepts]: Start accepts. Automaton has 17179 states and 24458 transitions. Word has length 517 [2022-07-14 00:11:29,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:29,664 INFO L495 AbstractCegarLoop]: Abstraction has 17179 states and 24458 transitions. [2022-07-14 00:11:29,665 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) [2022-07-14 00:11:29,665 INFO L276 IsEmpty]: Start isEmpty. Operand 17179 states and 24458 transitions. [2022-07-14 00:11:29,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2022-07-14 00:11:29,701 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:29,701 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] [2022-07-14 00:11:29,757 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:29,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:29,915 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:29,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:29,916 INFO L85 PathProgramCache]: Analyzing trace with hash 775553112, now seen corresponding path program 1 times [2022-07-14 00:11:29,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:29,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1101963155] [2022-07-14 00:11:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:29,918 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:29,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:29,919 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) [2022-07-14 00:11:29,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-07-14 00:11:31,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:31,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 2654 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:11:31,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:31,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1180 backedges. 230 proven. 0 refuted. 0 times theorem prover too weak. 950 trivial. 0 not checked. [2022-07-14 00:11:31,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:31,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:31,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1101963155] [2022-07-14 00:11:31,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1101963155] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:31,655 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:31,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:11:31,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783506685] [2022-07-14 00:11:31,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:31,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:11:31,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:31,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:11:31,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:11:31,657 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) [2022-07-14 00:11:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:32,203 INFO L93 Difference]: Finished difference Result 41041 states and 58352 transitions. [2022-07-14 00:11:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:11:32,203 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 [2022-07-14 00:11:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:32,278 INFO L225 Difference]: With dead ends: 41041 [2022-07-14 00:11:32,279 INFO L226 Difference]: Without dead ends: 23913 [2022-07-14 00:11:32,320 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 [2022-07-14 00:11:32,320 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 [2022-07-14 00:11:32,321 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] [2022-07-14 00:11:32,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23913 states. [2022-07-14 00:11:33,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23913 to 23849. [2022-07-14 00:11:33,271 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) [2022-07-14 00:11:33,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23849 states to 23849 states and 33846 transitions. [2022-07-14 00:11:33,351 INFO L78 Accepts]: Start accepts. Automaton has 23849 states and 33846 transitions. Word has length 552 [2022-07-14 00:11:33,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:33,352 INFO L495 AbstractCegarLoop]: Abstraction has 23849 states and 33846 transitions. [2022-07-14 00:11:33,352 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) [2022-07-14 00:11:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 23849 states and 33846 transitions. [2022-07-14 00:11:33,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 576 [2022-07-14 00:11:33,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:33,400 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] [2022-07-14 00:11:33,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:33,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:33,616 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:33,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:33,616 INFO L85 PathProgramCache]: Analyzing trace with hash 272930517, now seen corresponding path program 1 times [2022-07-14 00:11:33,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:33,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [176547931] [2022-07-14 00:11:33,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:33,618 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:33,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:33,620 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) [2022-07-14 00:11:33,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-07-14 00:11:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:35,232 INFO L263 TraceCheckSpWp]: Trace formula consists of 2732 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 00:11:35,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:35,360 INFO L134 CoverageAnalysis]: Checked inductivity of 1220 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 1118 trivial. 0 not checked. [2022-07-14 00:11:35,360 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:35,360 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:35,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [176547931] [2022-07-14 00:11:35,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [176547931] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:35,360 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:35,360 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:11:35,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781468443] [2022-07-14 00:11:35,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:35,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:11:35,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:35,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:11:35,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:11:35,362 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) [2022-07-14 00:11:36,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:36,660 INFO L93 Difference]: Finished difference Result 55601 states and 78910 transitions. [2022-07-14 00:11:36,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:11:36,661 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 [2022-07-14 00:11:36,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:36,774 INFO L225 Difference]: With dead ends: 55601 [2022-07-14 00:11:36,774 INFO L226 Difference]: Without dead ends: 31803 [2022-07-14 00:11:36,827 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 [2022-07-14 00:11:36,828 INFO L413 NwaCegarLoop]: 4170 mSDtfsCounter, 2351 mSDsluCounter, 5984 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:11:36,828 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2351 Valid, 10154 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-14 00:11:36,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31803 states. [2022-07-14 00:11:37,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31803 to 23857. [2022-07-14 00:11:37,692 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) [2022-07-14 00:11:37,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23857 states to 23857 states and 33850 transitions. [2022-07-14 00:11:37,756 INFO L78 Accepts]: Start accepts. Automaton has 23857 states and 33850 transitions. Word has length 575 [2022-07-14 00:11:37,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:37,756 INFO L495 AbstractCegarLoop]: Abstraction has 23857 states and 33850 transitions. [2022-07-14 00:11:37,757 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) [2022-07-14 00:11:37,757 INFO L276 IsEmpty]: Start isEmpty. Operand 23857 states and 33850 transitions. [2022-07-14 00:11:37,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2022-07-14 00:11:37,800 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:37,800 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] [2022-07-14 00:11:37,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:38,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:38,016 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:38,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:38,016 INFO L85 PathProgramCache]: Analyzing trace with hash -1315275553, now seen corresponding path program 1 times [2022-07-14 00:11:38,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:38,018 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320749373] [2022-07-14 00:11:38,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:38,018 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:38,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:38,020 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) [2022-07-14 00:11:38,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-07-14 00:11:39,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:40,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 3325 conjuncts, 9 conjunts are in the unsatisfiable core [2022-07-14 00:11:40,038 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:40,221 INFO L134 CoverageAnalysis]: Checked inductivity of 1777 backedges. 162 proven. 0 refuted. 0 times theorem prover too weak. 1615 trivial. 0 not checked. [2022-07-14 00:11:40,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:40,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:40,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320749373] [2022-07-14 00:11:40,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [320749373] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:40,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:40,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:11:40,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887852184] [2022-07-14 00:11:40,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:40,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:11:40,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:40,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:11:40,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:11:40,225 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) [2022-07-14 00:11:42,469 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 [] [2022-07-14 00:11:43,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:43,308 INFO L93 Difference]: Finished difference Result 52515 states and 75221 transitions. [2022-07-14 00:11:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:11:43,309 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 [2022-07-14 00:11:43,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:43,404 INFO L225 Difference]: With dead ends: 52515 [2022-07-14 00:11:43,405 INFO L226 Difference]: Without dead ends: 28709 [2022-07-14 00:11:43,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 710 GetRequests, 705 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:11:43,463 INFO L413 NwaCegarLoop]: 2981 mSDtfsCounter, 1263 mSDsluCounter, 11166 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 208 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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, 2.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:11:43,463 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1369 Valid, 14147 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 33 Invalid, 1 Unknown, 0 Unchecked, 2.4s Time] [2022-07-14 00:11:43,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28709 states. [2022-07-14 00:11:44,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28709 to 23897. [2022-07-14 00:11:44,246 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) [2022-07-14 00:11:44,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23897 states to 23897 states and 33910 transitions. [2022-07-14 00:11:44,312 INFO L78 Accepts]: Start accepts. Automaton has 23897 states and 33910 transitions. Word has length 709 [2022-07-14 00:11:44,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:44,312 INFO L495 AbstractCegarLoop]: Abstraction has 23897 states and 33910 transitions. [2022-07-14 00:11:44,313 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) [2022-07-14 00:11:44,313 INFO L276 IsEmpty]: Start isEmpty. Operand 23897 states and 33910 transitions. [2022-07-14 00:11:44,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 730 [2022-07-14 00:11:44,347 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:44,348 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] [2022-07-14 00:11:44,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:44,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:44,564 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:44,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:44,564 INFO L85 PathProgramCache]: Analyzing trace with hash -2113028057, now seen corresponding path program 1 times [2022-07-14 00:11:44,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:44,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [239733882] [2022-07-14 00:11:44,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:44,567 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:44,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:44,580 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) [2022-07-14 00:11:44,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-07-14 00:11:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:46,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 3370 conjuncts, 13 conjunts are in the unsatisfiable core [2022-07-14 00:11:46,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:46,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1781 backedges. 160 proven. 0 refuted. 0 times theorem prover too weak. 1621 trivial. 0 not checked. [2022-07-14 00:11:46,903 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:11:46,904 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:46,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [239733882] [2022-07-14 00:11:46,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [239733882] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:11:46,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:11:46,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-14 00:11:46,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032753577] [2022-07-14 00:11:46,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:11:46,905 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 00:11:46,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:46,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 00:11:46,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:11:46,906 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) [2022-07-14 00:11:48,952 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:11:49,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:11:49,831 INFO L93 Difference]: Finished difference Result 49559 states and 70551 transitions. [2022-07-14 00:11:49,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 00:11:49,832 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 [2022-07-14 00:11:49,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:11:49,915 INFO L225 Difference]: With dead ends: 49559 [2022-07-14 00:11:49,915 INFO L226 Difference]: Without dead ends: 25713 [2022-07-14 00:11:49,974 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 [2022-07-14 00:11:49,975 INFO L413 NwaCegarLoop]: 2651 mSDtfsCounter, 1289 mSDsluCounter, 12466 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1289 SdHoareTripleChecker+Valid, 15117 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-14 00:11:49,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1289 Valid, 15117 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-14 00:11:49,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25713 states. [2022-07-14 00:11:50,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25713 to 23913. [2022-07-14 00:11:50,905 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) [2022-07-14 00:11:50,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23913 states to 23913 states and 33926 transitions. [2022-07-14 00:11:50,973 INFO L78 Accepts]: Start accepts. Automaton has 23913 states and 33926 transitions. Word has length 729 [2022-07-14 00:11:50,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:11:50,974 INFO L495 AbstractCegarLoop]: Abstraction has 23913 states and 33926 transitions. [2022-07-14 00:11:50,974 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) [2022-07-14 00:11:50,975 INFO L276 IsEmpty]: Start isEmpty. Operand 23913 states and 33926 transitions. [2022-07-14 00:11:51,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-14 00:11:51,011 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:11:51,011 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] [2022-07-14 00:11:51,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-07-14 00:11:51,228 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:11:51,229 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:11:51,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:11:51,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1145833885, now seen corresponding path program 1 times [2022-07-14 00:11:51,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:11:51,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155229065] [2022-07-14 00:11:51,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:11:51,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:11:51,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:11:51,233 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) [2022-07-14 00:11:51,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-07-14 00:11:53,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:11:53,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 17 conjunts are in the unsatisfiable core [2022-07-14 00:11:53,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:11:54,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 320 proven. 6 refuted. 0 times theorem prover too weak. 1487 trivial. 0 not checked. [2022-07-14 00:11:54,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:11:55,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 43 proven. 10 refuted. 0 times theorem prover too weak. 1760 trivial. 0 not checked. [2022-07-14 00:11:55,244 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:11:55,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155229065] [2022-07-14 00:11:55,244 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [155229065] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 00:11:55,245 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-14 00:11:55,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-07-14 00:11:55,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358905902] [2022-07-14 00:11:55,245 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-14 00:11:55,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-14 00:11:55,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:11:55,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-14 00:11:55,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:11:55,247 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) [2022-07-14 00:11:59,598 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 [] [2022-07-14 00:12:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:12:10,918 INFO L93 Difference]: Finished difference Result 67242 states and 96968 transitions. [2022-07-14 00:12:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-14 00:12:10,919 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 [2022-07-14 00:12:10,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:12:11,065 INFO L225 Difference]: With dead ends: 67242 [2022-07-14 00:12:11,065 INFO L226 Difference]: Without dead ends: 43380 [2022-07-14 00:12:11,121 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 [2022-07-14 00:12:11,121 INFO L413 NwaCegarLoop]: 4680 mSDtfsCounter, 5678 mSDsluCounter, 32166 mSDsCounter, 0 mSdLazyCounter, 1947 mSolverCounterSat, 1797 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5909 SdHoareTripleChecker+Valid, 36846 SdHoareTripleChecker+Invalid, 3745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1797 IncrementalHoareTripleChecker+Valid, 1947 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2022-07-14 00:12:11,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5909 Valid, 36846 Invalid, 3745 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1797 Valid, 1947 Invalid, 1 Unknown, 0 Unchecked, 12.8s Time] [2022-07-14 00:12:11,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43380 states. [2022-07-14 00:12:12,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43380 to 31362. [2022-07-14 00:12:12,540 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) [2022-07-14 00:12:12,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31362 states to 31362 states and 44449 transitions. [2022-07-14 00:12:12,659 INFO L78 Accepts]: Start accepts. Automaton has 31362 states and 44449 transitions. Word has length 749 [2022-07-14 00:12:12,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:12:12,659 INFO L495 AbstractCegarLoop]: Abstraction has 31362 states and 44449 transitions. [2022-07-14 00:12:12,660 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) [2022-07-14 00:12:12,660 INFO L276 IsEmpty]: Start isEmpty. Operand 31362 states and 44449 transitions. [2022-07-14 00:12:12,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-14 00:12:12,723 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:12:12,724 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] [2022-07-14 00:12:12,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Ended with exit code 0 [2022-07-14 00:12:12,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:12:12,925 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:12:12,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:12:12,926 INFO L85 PathProgramCache]: Analyzing trace with hash -235595233, now seen corresponding path program 1 times [2022-07-14 00:12:12,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:12:12,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [312029380] [2022-07-14 00:12:12,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:12:12,929 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:12:12,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:12:12,931 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) [2022-07-14 00:12:12,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-07-14 00:12:15,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:12:15,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 3413 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-14 00:12:15,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:12:15,596 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 191 proven. 0 refuted. 0 times theorem prover too weak. 1622 trivial. 0 not checked. [2022-07-14 00:12:15,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:12:15,597 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:12:15,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [312029380] [2022-07-14 00:12:15,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [312029380] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:12:15,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:12:15,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-14 00:12:15,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121951361] [2022-07-14 00:12:15,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:12:15,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 00:12:15,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:12:15,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 00:12:15,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-14 00:12:15,599 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) [2022-07-14 00:12:16,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:12:16,512 INFO L93 Difference]: Finished difference Result 62502 states and 88596 transitions. [2022-07-14 00:12:16,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 00:12:16,513 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 [2022-07-14 00:12:16,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:12:16,615 INFO L225 Difference]: With dead ends: 62502 [2022-07-14 00:12:16,615 INFO L226 Difference]: Without dead ends: 31538 [2022-07-14 00:12:16,679 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 [2022-07-14 00:12:16,680 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 [2022-07-14 00:12:16,680 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] [2022-07-14 00:12:16,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31538 states. [2022-07-14 00:12:17,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31538 to 31394. [2022-07-14 00:12:17,632 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) [2022-07-14 00:12:17,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31394 states to 31394 states and 44481 transitions. [2022-07-14 00:12:17,737 INFO L78 Accepts]: Start accepts. Automaton has 31394 states and 44481 transitions. Word has length 749 [2022-07-14 00:12:17,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:12:17,738 INFO L495 AbstractCegarLoop]: Abstraction has 31394 states and 44481 transitions. [2022-07-14 00:12:17,738 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) [2022-07-14 00:12:17,738 INFO L276 IsEmpty]: Start isEmpty. Operand 31394 states and 44481 transitions. [2022-07-14 00:12:17,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2022-07-14 00:12:17,931 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:12:17,931 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] [2022-07-14 00:12:18,018 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-07-14 00:12:18,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:12:18,132 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:12:18,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:12:18,133 INFO L85 PathProgramCache]: Analyzing trace with hash -2052465123, now seen corresponding path program 1 times [2022-07-14 00:12:18,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:12:18,135 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2050916472] [2022-07-14 00:12:18,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:12:18,135 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:12:18,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:12:18,137 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) [2022-07-14 00:12:18,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-07-14 00:12:20,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:12:20,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 3415 conjuncts, 25 conjunts are in the unsatisfiable core [2022-07-14 00:12:20,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:12:21,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 341 proven. 6 refuted. 0 times theorem prover too weak. 1466 trivial. 0 not checked. [2022-07-14 00:12:21,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 00:12:21,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2022-07-14 00:12:21,690 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:12:21,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2050916472] [2022-07-14 00:12:21,690 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2050916472] provided 1 perfect and 1 imperfect interpolant sequences [2022-07-14 00:12:21,690 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 00:12:21,690 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2022-07-14 00:12:21,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153665052] [2022-07-14 00:12:21,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:12:21,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-14 00:12:21,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:12:21,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-14 00:12:21,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-07-14 00:12:21,691 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) [2022-07-14 00:12:24,033 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 [] [2022-07-14 00:12:25,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:12:25,113 INFO L93 Difference]: Finished difference Result 64400 states and 91492 transitions. [2022-07-14 00:12:25,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-14 00:12:25,114 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 [2022-07-14 00:12:25,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:12:25,227 INFO L225 Difference]: With dead ends: 64400 [2022-07-14 00:12:25,227 INFO L226 Difference]: Without dead ends: 33404 [2022-07-14 00:12:25,307 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 [2022-07-14 00:12:25,308 INFO L413 NwaCegarLoop]: 2621 mSDtfsCounter, 558 mSDsluCounter, 7197 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 107 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s 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 [2022-07-14 00:12:25,308 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] [2022-07-14 00:12:25,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33404 states. [2022-07-14 00:12:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33404 to 31418. [2022-07-14 00:12:26,452 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) [2022-07-14 00:12:26,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31418 states to 31418 states and 44505 transitions. [2022-07-14 00:12:26,542 INFO L78 Accepts]: Start accepts. Automaton has 31418 states and 44505 transitions. Word has length 749 [2022-07-14 00:12:26,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:12:26,543 INFO L495 AbstractCegarLoop]: Abstraction has 31418 states and 44505 transitions. [2022-07-14 00:12:26,543 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) [2022-07-14 00:12:26,543 INFO L276 IsEmpty]: Start isEmpty. Operand 31418 states and 44505 transitions. [2022-07-14 00:12:26,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-14 00:12:26,588 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:12:26,588 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] [2022-07-14 00:12:26,673 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Ended with exit code 0 [2022-07-14 00:12:26,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:12:26,804 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:12:26,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:12:26,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1273217471, now seen corresponding path program 1 times [2022-07-14 00:12:26,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:12:26,806 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [165310025] [2022-07-14 00:12:26,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:12:26,806 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:12:26,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:12:26,808 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) [2022-07-14 00:12:26,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-07-14 00:12:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:12:29,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 4 conjunts are in the unsatisfiable core [2022-07-14 00:12:29,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:12:31,016 INFO L356 Elim1Store]: treesize reduction 72, result has 1.4 percent of original size [2022-07-14 00:12:31,017 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 [2022-07-14 00:12:31,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-07-14 00:12:31,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:12:31,974 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:12:31,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [165310025] [2022-07-14 00:12:31,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [165310025] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:12:31,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:12:31,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:12:31,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126959916] [2022-07-14 00:12:31,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:12:31,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:12:31,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:12:31,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:12:31,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:12:31,977 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) [2022-07-14 00:12:35,076 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 [] [2022-07-14 00:12:37,081 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:12:40,858 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:12:48,480 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:12:52,921 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:12:54,938 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:12:56,941 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:06,547 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:08,573 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:10,607 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:13,413 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:15,427 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:18,503 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:20,514 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:23,120 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:25,967 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:27,989 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:30,095 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:32,107 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:35,645 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:37,662 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:39,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:41,797 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-07-14 00:13:42,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:13:42,179 INFO L93 Difference]: Finished difference Result 65816 states and 93198 transitions. [2022-07-14 00:13:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:13:42,180 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 [2022-07-14 00:13:42,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:13:42,292 INFO L225 Difference]: With dead ends: 65816 [2022-07-14 00:13:42,292 INFO L226 Difference]: Without dead ends: 34796 [2022-07-14 00:13:42,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 753 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:13:42,563 INFO L413 NwaCegarLoop]: 2730 mSDtfsCounter, 623 mSDsluCounter, 9593 mSDsCounter, 0 mSdLazyCounter, 494 mSolverCounterSat, 1 mSolverCounterUnsat, 21 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 64.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 653 SdHoareTripleChecker+Valid, 12323 SdHoareTripleChecker+Invalid, 984 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 494 IncrementalHoareTripleChecker+Invalid, 21 IncrementalHoareTripleChecker+Unknown, 468 IncrementalHoareTripleChecker+Unchecked, 66.7s IncrementalHoareTripleChecker+Time [2022-07-14 00:13:42,564 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [653 Valid, 12323 Invalid, 984 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 494 Invalid, 21 Unknown, 468 Unchecked, 66.7s Time] [2022-07-14 00:13:42,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34796 states. [2022-07-14 00:13:43,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34796 to 34356. [2022-07-14 00:13:43,708 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) [2022-07-14 00:13:43,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34356 states to 34356 states and 48580 transitions. [2022-07-14 00:13:43,796 INFO L78 Accepts]: Start accepts. Automaton has 34356 states and 48580 transitions. Word has length 759 [2022-07-14 00:13:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:13:43,796 INFO L495 AbstractCegarLoop]: Abstraction has 34356 states and 48580 transitions. [2022-07-14 00:13:43,797 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) [2022-07-14 00:13:43,797 INFO L276 IsEmpty]: Start isEmpty. Operand 34356 states and 48580 transitions. [2022-07-14 00:13:43,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2022-07-14 00:13:43,840 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:13:43,841 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] [2022-07-14 00:13:43,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-07-14 00:13:44,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:13:44,042 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:13:44,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:13:44,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1458326017, now seen corresponding path program 1 times [2022-07-14 00:13:44,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:13:44,045 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [154197910] [2022-07-14 00:13:44,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:13:44,045 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:13:44,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:13:44,046 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) [2022-07-14 00:13:44,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-07-14 00:13:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:13:46,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:13:46,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:13:46,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 460 proven. 0 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2022-07-14 00:13:46,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:13:46,561 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:13:46,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [154197910] [2022-07-14 00:13:46,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [154197910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:13:46,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:13:46,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:13:46,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709298253] [2022-07-14 00:13:46,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:13:46,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:13:46,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:13:46,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:13:46,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:13:46,564 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) [2022-07-14 00:13:48,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:13:48,114 INFO L93 Difference]: Finished difference Result 81178 states and 116741 transitions. [2022-07-14 00:13:48,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:13:48,117 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 [2022-07-14 00:13:48,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:13:48,245 INFO L225 Difference]: With dead ends: 81178 [2022-07-14 00:13:48,245 INFO L226 Difference]: Without dead ends: 47220 [2022-07-14 00:13:48,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 759 GetRequests, 754 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:13:48,426 INFO L413 NwaCegarLoop]: 3148 mSDtfsCounter, 616 mSDsluCounter, 11804 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 14952 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:13:48,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 14952 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:13:48,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47220 states. [2022-07-14 00:13:49,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47220 to 34396. [2022-07-14 00:13:49,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34396 states, 24300 states have (on average 1.3230864197530865) internal successors, (32151), 24716 states have internal predecessors, (32151), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1960 states have return successors, (8346), 8036 states have call predecessors, (8346), 8134 states have call successors, (8346) [2022-07-14 00:13:49,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34396 states to 34396 states and 48632 transitions. [2022-07-14 00:13:49,829 INFO L78 Accepts]: Start accepts. Automaton has 34396 states and 48632 transitions. Word has length 759 [2022-07-14 00:13:49,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:13:49,829 INFO L495 AbstractCegarLoop]: Abstraction has 34396 states and 48632 transitions. [2022-07-14 00:13:49,830 INFO L496 AbstractCegarLoop]: INTERPOLANT 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) [2022-07-14 00:13:49,830 INFO L276 IsEmpty]: Start isEmpty. Operand 34396 states and 48632 transitions. [2022-07-14 00:13:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2022-07-14 00:13:49,879 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:13:49,880 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:13:49,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-07-14 00:13:50,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:13:50,096 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:13:50,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:13:50,096 INFO L85 PathProgramCache]: Analyzing trace with hash -1963541631, now seen corresponding path program 1 times [2022-07-14 00:13:50,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:13:50,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1693013676] [2022-07-14 00:13:50,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:13:50,099 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:13:50,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:13:50,100 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:13:50,101 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-07-14 00:13:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:13:52,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 3484 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:13:52,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:13:52,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2022-07-14 00:13:52,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:13:52,864 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:13:52,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1693013676] [2022-07-14 00:13:52,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1693013676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:13:52,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:13:52,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:13:52,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462631039] [2022-07-14 00:13:52,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:13:52,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:13:52,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:13:52,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:13:52,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:13:52,867 INFO L87 Difference]: Start difference. First operand 34396 states and 48632 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-14 00:13:53,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:13:53,999 INFO L93 Difference]: Finished difference Result 68490 states and 96938 transitions. [2022-07-14 00:13:54,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:13:54,000 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 762 [2022-07-14 00:13:54,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:13:54,165 INFO L225 Difference]: With dead ends: 68490 [2022-07-14 00:13:54,165 INFO L226 Difference]: Without dead ends: 34492 [2022-07-14 00:13:54,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:13:54,253 INFO L413 NwaCegarLoop]: 2239 mSDtfsCounter, 3 mSDsluCounter, 2235 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4474 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:13:54,253 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4474 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:13:54,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2022-07-14 00:13:55,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 34420. [2022-07-14 00:13:55,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34420 states, 24324 states have (on average 1.3227676369018253) internal successors, (32175), 24740 states have internal predecessors, (32175), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1960 states have return successors, (8346), 8036 states have call predecessors, (8346), 8134 states have call successors, (8346) [2022-07-14 00:13:55,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34420 states to 34420 states and 48656 transitions. [2022-07-14 00:13:55,646 INFO L78 Accepts]: Start accepts. Automaton has 34420 states and 48656 transitions. Word has length 762 [2022-07-14 00:13:55,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:13:55,647 INFO L495 AbstractCegarLoop]: Abstraction has 34420 states and 48656 transitions. [2022-07-14 00:13:55,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-14 00:13:55,647 INFO L276 IsEmpty]: Start isEmpty. Operand 34420 states and 48656 transitions. [2022-07-14 00:13:55,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2022-07-14 00:13:55,691 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:13:55,691 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 16, 16, 16, 16, 16, 10, 10, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:13:55,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (17)] Ended with exit code 0 [2022-07-14 00:13:55,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:13:55,920 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:13:55,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:13:55,920 INFO L85 PathProgramCache]: Analyzing trace with hash -794178793, now seen corresponding path program 1 times [2022-07-14 00:13:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:13:55,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1974467759] [2022-07-14 00:13:55,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:13:55,922 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:13:55,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:13:55,923 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:13:55,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-07-14 00:13:58,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:13:58,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 3632 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:13:58,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:13:58,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1792 backedges. 536 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2022-07-14 00:13:58,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:13:58,521 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:13:58,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1974467759] [2022-07-14 00:13:58,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1974467759] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:13:58,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:13:58,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:13:58,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552870507] [2022-07-14 00:13:58,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:13:58,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:13:58,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:13:58,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:13:58,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:13:58,523 INFO L87 Difference]: Start difference. First operand 34420 states and 48656 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (103), 2 states have call predecessors, (103), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-07-14 00:14:00,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:14:00,342 INFO L93 Difference]: Finished difference Result 81282 states and 116857 transitions. [2022-07-14 00:14:00,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:14:00,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (103), 2 states have call predecessors, (103), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) Word has length 761 [2022-07-14 00:14:00,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:14:00,475 INFO L225 Difference]: With dead ends: 81282 [2022-07-14 00:14:00,475 INFO L226 Difference]: Without dead ends: 47260 [2022-07-14 00:14:00,544 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:14:00,545 INFO L413 NwaCegarLoop]: 3153 mSDtfsCounter, 606 mSDsluCounter, 11835 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 14988 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:14:00,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 14988 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:14:00,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47260 states. [2022-07-14 00:14:02,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47260 to 34436. [2022-07-14 00:14:02,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34436 states, 24340 states have (on average 1.3225554642563682) internal successors, (32191), 24748 states have internal predecessors, (32191), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1960 states have return successors, (8346), 8044 states have call predecessors, (8346), 8134 states have call successors, (8346) [2022-07-14 00:14:02,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34436 states to 34436 states and 48672 transitions. [2022-07-14 00:14:02,234 INFO L78 Accepts]: Start accepts. Automaton has 34436 states and 48672 transitions. Word has length 761 [2022-07-14 00:14:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:14:02,235 INFO L495 AbstractCegarLoop]: Abstraction has 34436 states and 48672 transitions. [2022-07-14 00:14:02,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 5 states have internal predecessors, (334), 2 states have call successors, (103), 2 states have call predecessors, (103), 3 states have return successors, (102), 3 states have call predecessors, (102), 2 states have call successors, (102) [2022-07-14 00:14:02,235 INFO L276 IsEmpty]: Start isEmpty. Operand 34436 states and 48672 transitions. [2022-07-14 00:14:02,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2022-07-14 00:14:02,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:14:02,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:14:02,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-07-14 00:14:02,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:14:02,486 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:14:02,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:14:02,487 INFO L85 PathProgramCache]: Analyzing trace with hash 862593027, now seen corresponding path program 1 times [2022-07-14 00:14:02,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:14:02,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1430263365] [2022-07-14 00:14:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:14:02,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:14:02,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:14:02,490 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:14:02,491 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-07-14 00:14:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:14:05,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 3484 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:14:05,110 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:14:05,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 457 proven. 0 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2022-07-14 00:14:05,133 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:14:05,134 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:14:05,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1430263365] [2022-07-14 00:14:05,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1430263365] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:14:05,134 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:14:05,134 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:14:05,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217546786] [2022-07-14 00:14:05,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:14:05,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:14:05,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:14:05,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:14:05,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:14:05,136 INFO L87 Difference]: Start difference. First operand 34436 states and 48672 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-14 00:14:06,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:14:06,496 INFO L93 Difference]: Finished difference Result 68570 states and 96998 transitions. [2022-07-14 00:14:06,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:14:06,496 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) Word has length 762 [2022-07-14 00:14:06,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:14:06,632 INFO L225 Difference]: With dead ends: 68570 [2022-07-14 00:14:06,633 INFO L226 Difference]: Without dead ends: 34532 [2022-07-14 00:14:06,743 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:14:06,743 INFO L413 NwaCegarLoop]: 2244 mSDtfsCounter, 3 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4482 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 00:14:06,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4482 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 00:14:06,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34532 states. [2022-07-14 00:14:08,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34532 to 34460. [2022-07-14 00:14:08,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34460 states, 24364 states have (on average 1.3222377277951076) internal successors, (32215), 24772 states have internal predecessors, (32215), 8135 states have call successors, (8135), 1921 states have call predecessors, (8135), 1960 states have return successors, (8346), 8044 states have call predecessors, (8346), 8134 states have call successors, (8346) [2022-07-14 00:14:08,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34460 states to 34460 states and 48696 transitions. [2022-07-14 00:14:08,388 INFO L78 Accepts]: Start accepts. Automaton has 34460 states and 48696 transitions. Word has length 762 [2022-07-14 00:14:08,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:14:08,389 INFO L495 AbstractCegarLoop]: Abstraction has 34460 states and 48696 transitions. [2022-07-14 00:14:08,389 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 2 states have call successors, (101), 2 states have call predecessors, (101), 2 states have return successors, (100), 2 states have call predecessors, (100), 2 states have call successors, (100) [2022-07-14 00:14:08,389 INFO L276 IsEmpty]: Start isEmpty. Operand 34460 states and 48696 transitions. [2022-07-14 00:14:08,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 763 [2022-07-14 00:14:08,444 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:14:08,445 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 00:14:08,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (19)] Forceful destruction successful, exit code 0 [2022-07-14 00:14:08,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:14:08,645 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:14:08,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:14:08,646 INFO L85 PathProgramCache]: Analyzing trace with hash 165337793, now seen corresponding path program 1 times [2022-07-14 00:14:08,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:14:08,648 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087108904] [2022-07-14 00:14:08,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:14:08,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:14:08,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:14:08,649 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:14:08,651 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2022-07-14 00:14:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:14:11,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 3484 conjuncts, 2 conjunts are in the unsatisfiable core [2022-07-14 00:14:11,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:14:11,653 INFO L134 CoverageAnalysis]: Checked inductivity of 1813 backedges. 605 proven. 0 refuted. 0 times theorem prover too weak. 1208 trivial. 0 not checked. [2022-07-14 00:14:11,654 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:14:11,654 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:14:11,654 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087108904] [2022-07-14 00:14:11,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087108904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:14:11,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:14:11,655 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 00:14:11,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608918536] [2022-07-14 00:14:11,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:14:11,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 00:14:11,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:14:11,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 00:14:11,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:14:11,657 INFO L87 Difference]: Start difference. First operand 34460 states and 48696 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2022-07-14 00:14:13,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:14:13,582 INFO L93 Difference]: Finished difference Result 80520 states and 113791 transitions. [2022-07-14 00:14:13,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 00:14:13,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) Word has length 762 [2022-07-14 00:14:13,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:14:13,732 INFO L225 Difference]: With dead ends: 80520 [2022-07-14 00:14:13,732 INFO L226 Difference]: Without dead ends: 46458 [2022-07-14 00:14:13,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 761 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 00:14:13,817 INFO L413 NwaCegarLoop]: 3909 mSDtfsCounter, 1887 mSDsluCounter, 2126 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1887 SdHoareTripleChecker+Valid, 6035 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 00:14:13,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1887 Valid, 6035 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 00:14:13,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46458 states. [2022-07-14 00:14:15,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46458 to 46206. [2022-07-14 00:14:15,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46206 states, 32922 states have (on average 1.3213960269728449) internal successors, (43503), 33442 states have internal predecessors, (43503), 10609 states have call successors, (10609), 2619 states have call predecessors, (10609), 2674 states have return successors, (10874), 10498 states have call predecessors, (10874), 10608 states have call successors, (10874) [2022-07-14 00:14:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46206 states to 46206 states and 64986 transitions. [2022-07-14 00:14:15,743 INFO L78 Accepts]: Start accepts. Automaton has 46206 states and 64986 transitions. Word has length 762 [2022-07-14 00:14:15,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:14:15,744 INFO L495 AbstractCegarLoop]: Abstraction has 46206 states and 64986 transitions. [2022-07-14 00:14:15,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 3 states have call successors, (104), 3 states have call predecessors, (104), 3 states have return successors, (103), 3 states have call predecessors, (103), 3 states have call successors, (103) [2022-07-14 00:14:15,744 INFO L276 IsEmpty]: Start isEmpty. Operand 46206 states and 64986 transitions. [2022-07-14 00:14:15,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2022-07-14 00:14:15,815 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:14:15,816 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-14 00:14:15,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (20)] Ended with exit code 0 [2022-07-14 00:14:16,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:14:16,017 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:14:16,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:14:16,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1648514778, now seen corresponding path program 1 times [2022-07-14 00:14:16,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:14:16,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744680910] [2022-07-14 00:14:16,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:14:16,020 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:14:16,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:14:16,021 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:14:16,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2022-07-14 00:14:18,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 00:14:18,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 3520 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-14 00:14:18,786 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 00:14:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1839 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 1305 trivial. 0 not checked. [2022-07-14 00:14:18,859 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 00:14:18,859 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-07-14 00:14:18,859 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744680910] [2022-07-14 00:14:18,859 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744680910] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 00:14:18,859 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 00:14:18,860 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-14 00:14:18,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143942472] [2022-07-14 00:14:18,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 00:14:18,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 00:14:18,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-07-14 00:14:18,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 00:14:18,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-14 00:14:18,861 INFO L87 Difference]: Start difference. First operand 46206 states and 64986 transitions. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (104), 2 states have call predecessors, (104), 3 states have return successors, (103), 3 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-14 00:14:20,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 00:14:20,690 INFO L93 Difference]: Finished difference Result 97522 states and 138090 transitions. [2022-07-14 00:14:20,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-14 00:14:20,691 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (104), 2 states have call predecessors, (104), 3 states have return successors, (103), 3 states have call predecessors, (103), 2 states have call successors, (103) Word has length 781 [2022-07-14 00:14:20,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 00:14:20,873 INFO L225 Difference]: With dead ends: 97522 [2022-07-14 00:14:20,874 INFO L226 Difference]: Without dead ends: 51714 [2022-07-14 00:14:20,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 776 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-14 00:14:20,973 INFO L413 NwaCegarLoop]: 2475 mSDtfsCounter, 190 mSDsluCounter, 9696 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 12171 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 00:14:20,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 12171 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 00:14:21,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51714 states. [2022-07-14 00:14:22,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51714 to 46314. [2022-07-14 00:14:22,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46314 states, 33010 states have (on average 1.3205392305362011) internal successors, (43591), 33526 states have internal predecessors, (43591), 10609 states have call successors, (10609), 2619 states have call predecessors, (10609), 2694 states have return successors, (10894), 10522 states have call predecessors, (10894), 10608 states have call successors, (10894) [2022-07-14 00:14:22,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46314 states to 46314 states and 65094 transitions. [2022-07-14 00:14:22,962 INFO L78 Accepts]: Start accepts. Automaton has 46314 states and 65094 transitions. Word has length 781 [2022-07-14 00:14:22,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 00:14:22,962 INFO L495 AbstractCegarLoop]: Abstraction has 46314 states and 65094 transitions. [2022-07-14 00:14:22,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 5 states have internal predecessors, (340), 2 states have call successors, (104), 2 states have call predecessors, (104), 3 states have return successors, (103), 3 states have call predecessors, (103), 2 states have call successors, (103) [2022-07-14 00:14:22,963 INFO L276 IsEmpty]: Start isEmpty. Operand 46314 states and 65094 transitions. [2022-07-14 00:14:23,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 782 [2022-07-14 00:14:23,028 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 00:14:23,028 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 16, 16, 16, 14, 14, 14, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-07-14 00:14:23,103 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (21)] Ended with exit code 0 [2022-07-14 00:14:23,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-07-14 00:14:23,229 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-14 00:14:23,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 00:14:23,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1772830184, now seen corresponding path program 1 times [2022-07-14 00:14:23,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-07-14 00:14:23,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1911973365] [2022-07-14 00:14:23,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 00:14:23,232 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-07-14 00:14:23,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-07-14 00:14:23,233 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-07-14 00:14:23,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (22)] Waiting until timeout for monitored process