./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.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 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 04:16:27,935 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 04:16:27,993 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-09 04:16:27,998 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 04:16:28,000 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 04:16:28,025 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 04:16:28,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 04:16:28,026 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 04:16:28,027 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 04:16:28,027 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 04:16:28,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 04:16:28,028 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 04:16:28,028 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 04:16:28,029 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 04:16:28,030 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 04:16:28,030 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 04:16:28,031 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 04:16:28,031 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 04:16:28,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 04:16:28,031 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 04:16:28,031 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 04:16:28,034 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 04:16:28,034 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 04:16:28,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 04:16:28,035 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 04:16:28,035 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 04:16:28,035 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 04:16:28,036 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 04:16:28,036 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 04:16:28,036 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:16:28,036 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 04:16:28,037 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 04:16:28,037 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 04:16:28,037 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 04:16:28,037 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 04:16:28,037 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 04:16:28,038 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 04:16:28,038 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 04:16:28,038 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 04:16:28,038 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 [2024-11-09 04:16:28,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 04:16:28,325 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 04:16:28,328 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 04:16:28,329 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 04:16:28,330 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 04:16:28,331 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-09 04:16:29,573 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 04:16:29,938 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 04:16:29,939 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-09 04:16:29,978 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1a102de/48c4f680fac145c2b1ae24ddf4933c79/FLAG171a28d6a [2024-11-09 04:16:30,131 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf1a102de/48c4f680fac145c2b1ae24ddf4933c79 [2024-11-09 04:16:30,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 04:16:30,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 04:16:30,135 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 04:16:30,135 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 04:16:30,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 04:16:30,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:16:30" (1/1) ... [2024-11-09 04:16:30,140 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6331f1a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:30, skipping insertion in model container [2024-11-09 04:16:30,141 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 04:16:30" (1/1) ... [2024-11-09 04:16:30,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 04:16:30,768 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i[163937,163950] [2024-11-09 04:16:31,098 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:16:31,125 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 04:16:31,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5448] [2024-11-09 04:16:31,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [5455] [2024-11-09 04:16:31,274 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5463-5464] [2024-11-09 04:16:31,275 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; incl %0": "+m" (v->counter)); [5493] [2024-11-09 04:16:31,276 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; decl %0": "+m" (v->counter)); [5500] [2024-11-09 04:16:31,280 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-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i[163937,163950] [2024-11-09 04:16:31,442 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 04:16:31,509 INFO L204 MainTranslator]: Completed translation [2024-11-09 04:16:31,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31 WrapperNode [2024-11-09 04:16:31,510 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 04:16:31,511 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 04:16:31,511 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 04:16:31,512 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 04:16:31,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:31,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:31,653 INFO L138 Inliner]: procedures = 161, calls = 852, calls flagged for inlining = 73, calls inlined = 73, statements flattened = 2743 [2024-11-09 04:16:31,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 04:16:31,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 04:16:31,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 04:16:31,655 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 04:16:31,664 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:31,665 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:31,691 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:31,943 INFO L175 MemorySlicer]: Split 518 memory accesses to 8 slices as follows [19, 2, 19, 48, 9, 9, 368, 44]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [0, 2, 0, 0, 0, 0, 5, 0]. The 304 writes are split as follows [11, 0, 0, 48, 5, 0, 196, 44]. [2024-11-09 04:16:31,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:31,943 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,004 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,046 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,056 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,066 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 04:16:32,096 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 04:16:32,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 04:16:32,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 04:16:32,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (1/1) ... [2024-11-09 04:16:32,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 04:16:32,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 04:16:32,180 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 04:16:32,185 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 04:16:32,230 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-09 04:16:32,230 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-09 04:16:32,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-09 04:16:32,231 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-09 04:16:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_17 [2024-11-09 04:16:32,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_17 [2024-11-09 04:16:32,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-09 04:16:32,233 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-09 04:16:32,233 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-09 04:16:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-09 04:16:32,234 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-09 04:16:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-09 04:16:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-09 04:16:32,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-09 04:16:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-09 04:16:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-09 04:16:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-09 04:16:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-09 04:16:32,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-09 04:16:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 04:16:32,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 04:16:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 04:16:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 04:16:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 04:16:32,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 04:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 04:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-09 04:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-09 04:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-09 04:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 04:16:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 04:16:32,237 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2024-11-09 04:16:32,237 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2024-11-09 04:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-09 04:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-09 04:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-09 04:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-09 04:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 04:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 04:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 04:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 04:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 04:16:32,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 04:16:32,238 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-09 04:16:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-09 04:16:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-09 04:16:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-09 04:16:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 04:16:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 04:16:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-09 04:16:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-09 04:16:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 04:16:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 04:16:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 04:16:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 04:16:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-09 04:16:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 04:16:32,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 04:16:32,241 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 04:16:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 04:16:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 04:16:32,242 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 04:16:32,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-09 04:16:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-09 04:16:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2024-11-09 04:16:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 04:16:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 04:16:32,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 04:16:32,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:16:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-09 04:16:32,244 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-09 04:16:32,244 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-09 04:16:32,245 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-09 04:16:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 04:16:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 04:16:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 04:16:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 04:16:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 04:16:32,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_read_bulk_callback [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_read_bulk_callback [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_send_msg [2024-11-09 04:16:32,246 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_send_msg [2024-11-09 04:16:32,246 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-09 04:16:32,247 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 04:16:32,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-09 04:16:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 04:16:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-09 04:16:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_disconnect [2024-11-09 04:16:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_disconnect [2024-11-09 04:16:32,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 04:16:32,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 04:16:32,663 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 04:16:32,667 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 04:16:32,744 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 04:16:32,914 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-09 04:16:39,887 INFO L? ?]: Removed 1051 outVars from TransFormulas that were not future-live. [2024-11-09 04:16:39,887 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 04:16:39,920 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 04:16:39,924 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-09 04:16:39,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:16:39 BoogieIcfgContainer [2024-11-09 04:16:39,925 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 04:16:39,926 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 04:16:39,930 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 04:16:39,933 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 04:16:39,934 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 04:16:30" (1/3) ... [2024-11-09 04:16:39,934 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad079de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:16:39, skipping insertion in model container [2024-11-09 04:16:39,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 04:16:31" (2/3) ... [2024-11-09 04:16:39,936 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad079de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 04:16:39, skipping insertion in model container [2024-11-09 04:16:39,936 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 04:16:39" (3/3) ... [2024-11-09 04:16:39,937 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--net--can--usb--esd_usb2.ko-entry_point.cil.out.i [2024-11-09 04:16:39,952 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 04:16:39,952 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 04:16:40,011 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 04:16:40,020 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;@624cc614, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 04:16:40,023 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 04:16:40,032 INFO L276 IsEmpty]: Start isEmpty. Operand has 847 states, 629 states have (on average 1.356120826709062) internal successors, (853), 655 states have internal predecessors, (853), 167 states have call successors, (167), 51 states have call predecessors, (167), 49 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-09 04:16:40,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 04:16:40,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:16:40,043 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:16:40,043 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:16:40,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:16:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash 569038334, now seen corresponding path program 1 times [2024-11-09 04:16:40,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:16:40,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652730842] [2024-11-09 04:16:40,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:16:40,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:16:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:16:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:16:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 04:16:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 04:16:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 04:16:43,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 04:16:43,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 04:16:43,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 04:16:43,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:16:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:16:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 04:16:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:16:43,497 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-09 04:16:43,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:16:43,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652730842] [2024-11-09 04:16:43,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652730842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:16:43,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:16:43,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:16:43,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273196290] [2024-11-09 04:16:43,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:16:43,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:16:43,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:16:43,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:16:43,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:16:43,531 INFO L87 Difference]: Start difference. First operand has 847 states, 629 states have (on average 1.356120826709062) internal successors, (853), 655 states have internal predecessors, (853), 167 states have call successors, (167), 51 states have call predecessors, (167), 49 states have return successors, (158), 156 states have call predecessors, (158), 158 states have call successors, (158) Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 04:16:47,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:16:51,890 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:03,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:03,649 INFO L93 Difference]: Finished difference Result 2655 states and 3802 transitions. [2024-11-09 04:17:03,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:17:03,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 83 [2024-11-09 04:17:03,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:03,691 INFO L225 Difference]: With dead ends: 2655 [2024-11-09 04:17:03,692 INFO L226 Difference]: Without dead ends: 1785 [2024-11-09 04:17:03,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:03,704 INFO L432 NwaCegarLoop]: 1055 mSDtfsCounter, 1518 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 422 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1646 SdHoareTripleChecker+Valid, 2498 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 886 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.6s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:03,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 2498 Invalid, 1310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 886 Invalid, 2 Unknown, 0 Unchecked, 19.6s Time] [2024-11-09 04:17:03,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-09 04:17:03,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1609. [2024-11-09 04:17:03,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1609 states, 1214 states have (on average 1.316309719934102) internal successors, (1598), 1240 states have internal predecessors, (1598), 298 states have call successors, (298), 97 states have call predecessors, (298), 96 states have return successors, (293), 289 states have call predecessors, (293), 293 states have call successors, (293) [2024-11-09 04:17:03,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2189 transitions. [2024-11-09 04:17:03,868 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2189 transitions. Word has length 83 [2024-11-09 04:17:03,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:03,869 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2189 transitions. [2024-11-09 04:17:03,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.5) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-09 04:17:03,870 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2189 transitions. [2024-11-09 04:17:03,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-09 04:17:03,874 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:03,874 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:03,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 04:17:03,875 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:03,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:03,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1592493928, now seen corresponding path program 1 times [2024-11-09 04:17:03,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:03,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616512575] [2024-11-09 04:17:03,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:03,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:07,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 04:17:07,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 04:17:07,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,248 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 04:17:07,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,257 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 04:17:07,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 04:17:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 04:17:07,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:17:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:17:07,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 04:17:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 04:17:07,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 04:17:07,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:07,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616512575] [2024-11-09 04:17:07,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616512575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:07,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:07,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:07,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823839049] [2024-11-09 04:17:07,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:07,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:07,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:07,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:07,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:07,377 INFO L87 Difference]: Start difference. First operand 1609 states and 2189 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:17:11,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:25,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:25,490 INFO L93 Difference]: Finished difference Result 5128 states and 7073 transitions. [2024-11-09 04:17:25,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 04:17:25,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 93 [2024-11-09 04:17:25,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:25,509 INFO L225 Difference]: With dead ends: 5128 [2024-11-09 04:17:25,510 INFO L226 Difference]: Without dead ends: 3544 [2024-11-09 04:17:25,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:25,516 INFO L432 NwaCegarLoop]: 1291 mSDtfsCounter, 1358 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 345 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1484 SdHoareTripleChecker+Valid, 2790 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.2s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:25,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1484 Valid, 2790 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 17.2s Time] [2024-11-09 04:17:25,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2024-11-09 04:17:25,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3182. [2024-11-09 04:17:25,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3182 states, 2409 states have (on average 1.3163138231631382) internal successors, (3171), 2457 states have internal predecessors, (3171), 580 states have call successors, (580), 193 states have call predecessors, (580), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-09 04:17:25,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 4336 transitions. [2024-11-09 04:17:25,631 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 4336 transitions. Word has length 93 [2024-11-09 04:17:25,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:25,633 INFO L471 AbstractCegarLoop]: Abstraction has 3182 states and 4336 transitions. [2024-11-09 04:17:25,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:17:25,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 4336 transitions. [2024-11-09 04:17:25,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-09 04:17:25,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:25,637 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:25,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 04:17:25,637 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:25,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:25,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2123005374, now seen corresponding path program 1 times [2024-11-09 04:17:25,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:25,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484056133] [2024-11-09 04:17:25,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:25,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 04:17:28,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 04:17:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 04:17:28,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 04:17:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 04:17:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 04:17:28,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:17:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:17:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 04:17:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 04:17:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:28,773 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 04:17:28,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:28,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484056133] [2024-11-09 04:17:28,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484056133] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:28,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:28,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:28,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235970421] [2024-11-09 04:17:28,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:28,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:28,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:28,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:28,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:28,777 INFO L87 Difference]: Start difference. First operand 3182 states and 4336 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:17:32,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:40,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:40,373 INFO L93 Difference]: Finished difference Result 3536 states and 4900 transitions. [2024-11-09 04:17:40,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:40,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 94 [2024-11-09 04:17:40,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:40,388 INFO L225 Difference]: With dead ends: 3536 [2024-11-09 04:17:40,389 INFO L226 Difference]: Without dead ends: 3533 [2024-11-09 04:17:40,390 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:40,393 INFO L432 NwaCegarLoop]: 924 mSDtfsCounter, 1271 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 266 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1370 SdHoareTripleChecker+Valid, 1446 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:40,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1370 Valid, 1446 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2024-11-09 04:17:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2024-11-09 04:17:40,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3181. [2024-11-09 04:17:40,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3181 states, 2409 states have (on average 1.3158987131589872) internal successors, (3170), 2456 states have internal predecessors, (3170), 579 states have call successors, (579), 193 states have call predecessors, (579), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-09 04:17:40,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4334 transitions. [2024-11-09 04:17:40,549 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4334 transitions. Word has length 94 [2024-11-09 04:17:40,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:40,549 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4334 transitions. [2024-11-09 04:17:40,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:17:40,549 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4334 transitions. [2024-11-09 04:17:40,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-09 04:17:40,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:40,556 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:40,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 04:17:40,556 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:40,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:40,557 INFO L85 PathProgramCache]: Analyzing trace with hash -1388986149, now seen corresponding path program 1 times [2024-11-09 04:17:40,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:40,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971387287] [2024-11-09 04:17:40,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:40,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:42,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:43,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 04:17:43,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 04:17:43,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 04:17:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,167 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 04:17:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 04:17:43,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 04:17:43,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:17:43,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:17:43,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 04:17:43,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 04:17:43,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:43,215 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 04:17:43,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:43,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971387287] [2024-11-09 04:17:43,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1971387287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:43,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:43,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:43,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681436622] [2024-11-09 04:17:43,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:43,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:43,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:43,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:43,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:43,219 INFO L87 Difference]: Start difference. First operand 3181 states and 4334 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:17:47,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 04:17:54,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 04:17:54,794 INFO L93 Difference]: Finished difference Result 3535 states and 4898 transitions. [2024-11-09 04:17:54,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 04:17:54,795 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) Word has length 95 [2024-11-09 04:17:54,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 04:17:54,809 INFO L225 Difference]: With dead ends: 3535 [2024-11-09 04:17:54,810 INFO L226 Difference]: Without dead ends: 3532 [2024-11-09 04:17:54,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 04:17:54,814 INFO L432 NwaCegarLoop]: 919 mSDtfsCounter, 1270 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 267 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1368 SdHoareTripleChecker+Valid, 1441 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 267 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.8s IncrementalHoareTripleChecker+Time [2024-11-09 04:17:54,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1368 Valid, 1441 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [267 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 10.8s Time] [2024-11-09 04:17:54,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3532 states. [2024-11-09 04:17:54,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3532 to 3180. [2024-11-09 04:17:54,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3180 states, 2409 states have (on average 1.315483603154836) internal successors, (3169), 2455 states have internal predecessors, (3169), 578 states have call successors, (578), 193 states have call predecessors, (578), 192 states have return successors, (585), 567 states have call predecessors, (585), 575 states have call successors, (585) [2024-11-09 04:17:54,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3180 states to 3180 states and 4332 transitions. [2024-11-09 04:17:54,944 INFO L78 Accepts]: Start accepts. Automaton has 3180 states and 4332 transitions. Word has length 95 [2024-11-09 04:17:54,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 04:17:54,945 INFO L471 AbstractCegarLoop]: Abstraction has 3180 states and 4332 transitions. [2024-11-09 04:17:54,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:17:54,945 INFO L276 IsEmpty]: Start isEmpty. Operand 3180 states and 4332 transitions. [2024-11-09 04:17:54,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 04:17:54,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 04:17:54,947 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:17:54,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 04:17:54,948 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 04:17:54,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 04:17:54,948 INFO L85 PathProgramCache]: Analyzing trace with hash -109221787, now seen corresponding path program 1 times [2024-11-09 04:17:54,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 04:17:54,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488379360] [2024-11-09 04:17:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 04:17:54,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 04:17:56,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-09 04:17:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-09 04:17:57,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-09 04:17:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 04:17:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 04:17:57,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 04:17:57,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-09 04:17:57,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-09 04:17:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 04:17:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 04:17:57,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-09 04:17:57,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-09 04:17:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 04:17:57,470 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-09 04:17:57,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 04:17:57,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488379360] [2024-11-09 04:17:57,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488379360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 04:17:57,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 04:17:57,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 04:17:57,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925412592] [2024-11-09 04:17:57,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 04:17:57,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 04:17:57,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 04:17:57,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 04:17:57,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 04:17:57,473 INFO L87 Difference]: Start difference. First operand 3180 states and 4332 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (12), 1 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-09 04:18:01,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []