./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.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 --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 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 04:18:22,034 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:18:22,108 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:18:22,114 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:18:22,115 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:18:22,146 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:18:22,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:18:22,147 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:18:22,148 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:18:22,149 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:18:22,149 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:18:22,150 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:18:22,150 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:18:22,151 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:18:22,153 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:18:22,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:18:22,153 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:18:22,154 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:18:22,154 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:18:22,154 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:18:22,154 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:18:22,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:18:22,158 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:18:22,159 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:18:22,159 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:18:22,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:18:22,160 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:18:22,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:18:22,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:18:22,161 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:18:22,161 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:18:22,161 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:18:22,162 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:18:22,162 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:18:22,162 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:18:22,163 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:18:22,163 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:18:22,163 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:18:22,163 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:18:22,164 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e983f35cff7a0c67962e23f6c3d66292f25c728e4d1df204c975f306d1512a3 [2024-11-09 04:18:22,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:18:22,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:18:22,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:18:22,495 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:18:22,495 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:18:22,497 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-11-09 04:18:23,959 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:18:24,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:18:24,449 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-11-09 04:18:24,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98887158d/142baafcaddd41d38641c5d8a289c43b/FLAGb3dd3c9db [2024-11-09 04:18:24,509 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98887158d/142baafcaddd41d38641c5d8a289c43b [2024-11-09 04:18:24,514 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:18:24,515 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:18:24,517 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:18:24,517 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:18:24,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:18:24,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:18:24" (1/1) ... [2024-11-09 04:18:24,526 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@371eccbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:24, skipping insertion in model container [2024-11-09 04:18:24,526 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:18:24" (1/1) ... [2024-11-09 04:18:24,640 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:18:25,437 WARN L250 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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2024-11-09 04:18:25,873 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:18:25,909 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:18:26,084 WARN L250 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_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i[159401,159414] [2024-11-09 04:18:26,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:18:26,186 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:18:26,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26 WrapperNode [2024-11-09 04:18:26,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:18:26,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:18:26,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:18:26,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:18:26,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,315 INFO L138 Inliner]: procedures = 102, calls = 350, calls flagged for inlining = 36, calls inlined = 33, statements flattened = 1083 [2024-11-09 04:18:26,318 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:18:26,319 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:18:26,319 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:18:26,319 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:18:26,330 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,331 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,435 INFO L175 MemorySlicer]: Split 195 memory accesses to 10 slices as follows [19, 2, 17, 44, 79, 2, 3, 2, 26, 1]. 41 percent of accesses are in the largest equivalence class. The 45 initializations are split as follows [0, 2, 15, 0, 2, 0, 0, 0, 26, 0]. The 86 writes are split as follows [19, 0, 1, 44, 19, 0, 1, 1, 0, 1]. [2024-11-09 04:18:26,439 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,482 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,518 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,552 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:18:26,553 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:18:26,553 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:18:26,554 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:18:26,554 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (1/1) ... [2024-11-09 04:18:26,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:18:26,572 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:18:26,596 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 04:18:26,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 04:18:26,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-09 04:18:26,750 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-09 04:18:26,751 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:18:26,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 04:18:26,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 04:18:26,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_tx_fixup [2024-11-09 04:18:26,753 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_tx_fixup [2024-11-09 04:18:26,753 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_disconnect [2024-11-09 04:18:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_disconnect [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-09 04:18:26,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-09 04:18:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-09 04:18:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-09 04:18:26,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-09 04:18:26,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-09 04:18:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 04:18:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 04:18:26,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:18:26,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_rx_fixup [2024-11-09 04:18:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_rx_fixup [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_skb_12 [2024-11-09 04:18:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_skb_12 [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2024-11-09 04:18:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 04:18:26,760 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:18:26,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:18:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-11-09 04:18:26,761 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-11-09 04:18:26,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-09 04:18:26,762 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-09 04:18:26,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-09 04:18:26,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-09 04:18:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-09 04:18:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-09 04:18:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-09 04:18:26,769 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-09 04:18:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure usbnet_skb_return [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure usbnet_skb_return [2024-11-09 04:18:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:18:26,770 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:18:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:18:26,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:18:26,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:18:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:18:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:18:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:18:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:18:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:18:26,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 04:18:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 04:18:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-09 04:18:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-09 04:18:26,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:18:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 04:18:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 04:18:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 04:18:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 04:18:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 04:18:26,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-09 04:18:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-09 04:18:26,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-09 04:18:26,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-09 04:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-09 04:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-09 04:18:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-09 04:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 04:18:26,781 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 04:18:26,781 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 04:18:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure cx82310_cmd [2024-11-09 04:18:26,782 INFO L138 BoogieDeclarations]: Found implementation of procedure cx82310_cmd [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 04:18:26,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-09 04:18:26,783 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-09 04:18:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-09 04:18:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-09 04:18:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-09 04:18:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-09 04:18:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 04:18:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 04:18:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:18:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:18:27,210 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:18:27,213 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:18:27,264 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 04:18:33,088 INFO L? ?]: Removed 592 outVars from TransFormulas that were not future-live. [2024-11-09 04:18:33,089 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:18:33,118 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:18:33,118 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 04:18:33,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:18:33 BoogieIcfgContainer [2024-11-09 04:18:33,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:18:33,122 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:18:33,122 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:18:33,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:18:33,126 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:18:24" (1/3) ... [2024-11-09 04:18:33,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a29d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:18:33, skipping insertion in model container [2024-11-09 04:18:33,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:18:26" (2/3) ... [2024-11-09 04:18:33,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a29d574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:18:33, skipping insertion in model container [2024-11-09 04:18:33,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:18:33" (3/3) ... [2024-11-09 04:18:33,129 INFO L112 eAbstractionObserver]: Analyzing ICFG 205_9a_array_unsafes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--usb--cx82310_eth.ko-entry_point.cil.out.i [2024-11-09 04:18:33,148 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:18:33,148 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:18:33,239 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:18:33,248 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@159f7d6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:18:33,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:18:33,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 340 states, 253 states have (on average 1.383399209486166) internal successors, (350), 259 states have internal predecessors, (350), 63 states have call successors, (63), 23 states have call predecessors, (63), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) [2024-11-09 04:18:33,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 04:18:33,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:18:33,269 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 04:18:33,270 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:18:33,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:18:33,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1622781373, now seen corresponding path program 1 times [2024-11-09 04:18:33,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:18:33,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488234263] [2024-11-09 04:18:33,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:18:33,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:18:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:34,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:18:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:34,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 04:18:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:34,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 04:18:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 04:18:34,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:18:34,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488234263] [2024-11-09 04:18:34,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488234263] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:18:34,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:18:34,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 04:18:34,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248369572] [2024-11-09 04:18:34,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:18:34,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 04:18:34,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:18:34,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 04:18:34,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 04:18:34,492 INFO L87 Difference]: Start difference. First operand has 340 states, 253 states have (on average 1.383399209486166) internal successors, (350), 259 states have internal predecessors, (350), 63 states have call successors, (63), 23 states have call predecessors, (63), 22 states have return successors, (59), 59 states have call predecessors, (59), 59 states have call successors, (59) Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:18:38,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:18:42,547 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:18:45,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:18:45,857 INFO L93 Difference]: Finished difference Result 1112 states and 1658 transitions. [2024-11-09 04:18:45,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 04:18:45,860 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 36 [2024-11-09 04:18:45,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:18:45,878 INFO L225 Difference]: With dead ends: 1112 [2024-11-09 04:18:45,879 INFO L226 Difference]: Without dead ends: 761 [2024-11-09 04:18:45,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-09 04:18:45,892 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 1597 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 875 mSolverCounterSat, 760 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1616 SdHoareTripleChecker+Valid, 799 SdHoareTripleChecker+Invalid, 1637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 760 IncrementalHoareTripleChecker+Valid, 875 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:18:45,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1616 Valid, 799 Invalid, 1637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [760 Valid, 875 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2024-11-09 04:18:45,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-11-09 04:18:46,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 617. [2024-11-09 04:18:46,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 617 states, 466 states have (on average 1.3562231759656653) internal successors, (632), 466 states have internal predecessors, (632), 110 states have call successors, (110), 41 states have call predecessors, (110), 40 states have return successors, (109), 109 states have call predecessors, (109), 109 states have call successors, (109) [2024-11-09 04:18:46,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 617 states to 617 states and 851 transitions. [2024-11-09 04:18:46,080 INFO L78 Accepts]: Start accepts. Automaton has 617 states and 851 transitions. Word has length 36 [2024-11-09 04:18:46,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:18:46,081 INFO L471 AbstractCegarLoop]: Abstraction has 617 states and 851 transitions. [2024-11-09 04:18:46,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 4 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 04:18:46,081 INFO L276 IsEmpty]: Start isEmpty. Operand 617 states and 851 transitions. [2024-11-09 04:18:46,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-09 04:18:46,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:18:46,089 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-09 04:18:46,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:18:46,092 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:18:46,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:18:46,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1989508791, now seen corresponding path program 1 times [2024-11-09 04:18:46,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:18:46,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874861925] [2024-11-09 04:18:46,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:18:46,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:18:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:46,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:18:46,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:46,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 04:18:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:46,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 04:18:46,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:46,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 04:18:46,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:46,949 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-09 04:18:46,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:18:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874861925] [2024-11-09 04:18:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874861925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:18:46,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:18:46,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:18:46,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196854733] [2024-11-09 04:18:46,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:18:46,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:18:46,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:18:46,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:18:46,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:18:46,958 INFO L87 Difference]: Start difference. First operand 617 states and 851 transitions. Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:18:50,984 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:18:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:18:54,243 INFO L93 Difference]: Finished difference Result 2094 states and 3010 transitions. [2024-11-09 04:18:54,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:18:54,244 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 46 [2024-11-09 04:18:54,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:18:54,260 INFO L225 Difference]: With dead ends: 2094 [2024-11-09 04:18:54,261 INFO L226 Difference]: Without dead ends: 1489 [2024-11-09 04:18:54,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:18:54,266 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 1457 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 652 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 1260 SdHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 652 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-09 04:18:54,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1478 Valid, 1260 Invalid, 2510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [652 Valid, 1857 Invalid, 1 Unknown, 0 Unchecked, 6.9s Time] [2024-11-09 04:18:54,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-11-09 04:18:54,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1207. [2024-11-09 04:18:54,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1207 states, 912 states have (on average 1.356359649122807) internal successors, (1237), 912 states have internal predecessors, (1237), 216 states have call successors, (216), 79 states have call predecessors, (216), 78 states have return successors, (225), 215 states have call predecessors, (225), 215 states have call successors, (225) [2024-11-09 04:18:54,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1207 states to 1207 states and 1678 transitions. [2024-11-09 04:18:54,427 INFO L78 Accepts]: Start accepts. Automaton has 1207 states and 1678 transitions. Word has length 46 [2024-11-09 04:18:54,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:18:54,429 INFO L471 AbstractCegarLoop]: Abstraction has 1207 states and 1678 transitions. [2024-11-09 04:18:54,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.25) internal successors, (34), 5 states have internal predecessors, (34), 3 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-09 04:18:54,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1207 states and 1678 transitions. [2024-11-09 04:18:54,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 04:18:54,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:18:54,439 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-09 04:18:54,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:18:54,439 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:18:54,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:18:54,440 INFO L85 PathProgramCache]: Analyzing trace with hash 1543806335, now seen corresponding path program 1 times [2024-11-09 04:18:54,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:18:54,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473751269] [2024-11-09 04:18:54,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:18:54,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:18:54,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:54,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:18:54,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:54,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 04:18:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:54,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 04:18:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:55,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 04:18:55,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:55,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:18:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:55,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:18:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:55,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:18:55,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:55,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 04:18:55,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:18:55,110 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-09 04:18:55,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:18:55,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473751269] [2024-11-09 04:18:55,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473751269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:18:55,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:18:55,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:18:55,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146763955] [2024-11-09 04:18:55,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:18:55,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:18:55,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:18:55,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:18:55,113 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:18:55,113 INFO L87 Difference]: Start difference. First operand 1207 states and 1678 transitions. Second operand has 8 states, 8 states have (on average 7.625) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:18:59,132 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:03,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:07,157 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:10,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:19:10,037 INFO L93 Difference]: Finished difference Result 2966 states and 4228 transitions. [2024-11-09 04:19:10,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 04:19:10,038 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 84 [2024-11-09 04:19:10,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:19:10,050 INFO L225 Difference]: With dead ends: 2966 [2024-11-09 04:19:10,050 INFO L226 Difference]: Without dead ends: 1777 [2024-11-09 04:19:10,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-09 04:19:10,058 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 825 mSDsluCounter, 865 mSDsCounter, 0 mSdLazyCounter, 1352 mSolverCounterSat, 358 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 835 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 1352 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-09 04:19:10,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [835 Valid, 1066 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 1352 Invalid, 3 Unknown, 0 Unchecked, 14.4s Time] [2024-11-09 04:19:10,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1777 states. [2024-11-09 04:19:10,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1777 to 1520. [2024-11-09 04:19:10,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1520 states, 1184 states have (on average 1.3783783783783783) internal successors, (1632), 1188 states have internal predecessors, (1632), 235 states have call successors, (235), 89 states have call predecessors, (235), 100 states have return successors, (282), 242 states have call predecessors, (282), 234 states have call successors, (282) [2024-11-09 04:19:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1520 states to 1520 states and 2149 transitions. [2024-11-09 04:19:10,202 INFO L78 Accepts]: Start accepts. Automaton has 1520 states and 2149 transitions. Word has length 84 [2024-11-09 04:19:10,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:19:10,204 INFO L471 AbstractCegarLoop]: Abstraction has 1520 states and 2149 transitions. [2024-11-09 04:19:10,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.625) internal successors, (61), 3 states have internal predecessors, (61), 2 states have call successors, (9), 6 states have call predecessors, (9), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 04:19:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 1520 states and 2149 transitions. [2024-11-09 04:19:10,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 04:19:10,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:19:10,210 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2024-11-09 04:19:10,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:19:10,210 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:19:10,211 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:19:10,211 INFO L85 PathProgramCache]: Analyzing trace with hash 884367404, now seen corresponding path program 1 times [2024-11-09 04:19:10,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:19:10,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522435038] [2024-11-09 04:19:10,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:19:10,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:19:10,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:19:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 04:19:10,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 04:19:10,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 04:19:10,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 04:19:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 04:19:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 04:19:10,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-09 04:19:10,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:19:10,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:19:10,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:19:10,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:10,898 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-09 04:19:10,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:19:10,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522435038] [2024-11-09 04:19:10,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522435038] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:19:10,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:19:10,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-09 04:19:10,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877769741] [2024-11-09 04:19:10,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:19:10,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-09 04:19:10,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:19:10,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-09 04:19:10,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-09 04:19:10,904 INFO L87 Difference]: Start difference. First operand 1520 states and 2149 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 04:19:14,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:18,930 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:22,939 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:26,951 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:30,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:19:30,285 INFO L93 Difference]: Finished difference Result 4332 states and 6200 transitions. [2024-11-09 04:19:30,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-09 04:19:30,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-09 04:19:30,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:19:30,305 INFO L225 Difference]: With dead ends: 4332 [2024-11-09 04:19:30,307 INFO L226 Difference]: Without dead ends: 2841 [2024-11-09 04:19:30,313 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2024-11-09 04:19:30,314 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 1479 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1284 mSolverCounterSat, 658 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1495 SdHoareTripleChecker+Valid, 1189 SdHoareTripleChecker+Invalid, 1946 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 1284 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2024-11-09 04:19:30,315 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1495 Valid, 1189 Invalid, 1946 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 1284 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2024-11-09 04:19:30,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2841 states. [2024-11-09 04:19:30,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2841 to 2364. [2024-11-09 04:19:30,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2364 states, 1848 states have (on average 1.3668831168831168) internal successors, (2526), 1856 states have internal predecessors, (2526), 343 states have call successors, (343), 149 states have call predecessors, (343), 172 states have return successors, (425), 358 states have call predecessors, (425), 342 states have call successors, (425) [2024-11-09 04:19:30,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2364 states to 2364 states and 3294 transitions. [2024-11-09 04:19:30,505 INFO L78 Accepts]: Start accepts. Automaton has 2364 states and 3294 transitions. Word has length 112 [2024-11-09 04:19:30,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:19:30,506 INFO L471 AbstractCegarLoop]: Abstraction has 2364 states and 3294 transitions. [2024-11-09 04:19:30,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 3 states have internal predecessors, (74), 3 states have call successors, (12), 6 states have call predecessors, (12), 1 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-09 04:19:30,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2364 states and 3294 transitions. [2024-11-09 04:19:30,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-09 04:19:30,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:19:30,509 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 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] [2024-11-09 04:19:30,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:19:30,510 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:19:30,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:19:30,510 INFO L85 PathProgramCache]: Analyzing trace with hash 447826054, now seen corresponding path program 1 times [2024-11-09 04:19:30,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:19:30,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715958168] [2024-11-09 04:19:30,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:19:30,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:19:30,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:19:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-09 04:19:31,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-09 04:19:31,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 04:19:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-09 04:19:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-09 04:19:31,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-09 04:19:31,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 04:19:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:19:31,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:19:31,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-09 04:19:31,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:19:31,834 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-09 04:19:31,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:19:31,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715958168] [2024-11-09 04:19:31,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [715958168] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:19:31,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:19:31,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-09 04:19:31,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713399122] [2024-11-09 04:19:31,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:19:31,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 04:19:31,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:19:31,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 04:19:31,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-09 04:19:31,837 INFO L87 Difference]: Start difference. First operand 2364 states and 3294 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 7 states have internal predecessors, (74), 2 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (11), 4 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 04:19:35,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:39,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:19:43,883 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []