./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 8be7027f 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-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 09:55:20,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 09:55:20,964 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-12 09:55:20,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 09:55:20,968 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 09:55:21,008 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 09:55:21,009 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 09:55:21,009 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 09:55:21,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 09:55:21,011 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 09:55:21,012 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 09:55:21,012 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 09:55:21,013 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 09:55:21,013 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 09:55:21,015 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 09:55:21,016 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 09:55:21,016 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 09:55:21,016 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 09:55:21,016 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 09:55:21,017 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 09:55:21,017 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 09:55:21,018 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 09:55:21,018 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 09:55:21,018 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 09:55:21,018 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 09:55:21,019 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 09:55:21,019 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 09:55:21,019 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 09:55:21,019 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 09:55:21,020 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:55:21,020 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 09:55:21,020 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 09:55:21,020 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 09:55:21,021 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 09:55:21,021 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 09:55:21,025 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 09:55:21,026 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 09:55:21,026 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 09:55:21,026 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 09:55:21,026 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 [2024-11-12 09:55:21,269 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 09:55:21,301 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 09:55:21,304 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 09:55:21,305 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 09:55:21,306 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 09:55:21,307 INFO L431 ainManager$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 [2024-11-12 09:55:22,834 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 09:55:23,310 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 09:55:23,311 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 [2024-11-12 09:55:23,355 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc80a0ad2/b8c3c5848ea9443d968425a532e135d9/FLAGfb1e1f311 [2024-11-12 09:55:23,408 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc80a0ad2/b8c3c5848ea9443d968425a532e135d9 [2024-11-12 09:55:23,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 09:55:23,412 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 09:55:23,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 09:55:23,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 09:55:23,420 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 09:55:23,421 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:55:23" (1/1) ... [2024-11-12 09:55:23,424 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4111973a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:23, skipping insertion in model container [2024-11-12 09:55:23,424 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 09:55:23" (1/1) ... [2024-11-12 09:55:23,543 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 09:55:24,484 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] [2024-11-12 09:55:25,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:55:25,090 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 09:55:25,194 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] [2024-11-12 09:55:25,196 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] [2024-11-12 09:55:25,197 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] [2024-11-12 09:55:25,201 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] [2024-11-12 09:55:25,201 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] [2024-11-12 09:55:25,212 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] [2024-11-12 09:55:25,413 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 09:55:25,493 INFO L204 MainTranslator]: Completed translation [2024-11-12 09:55:25,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25 WrapperNode [2024-11-12 09:55:25,494 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 09:55:25,495 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 09:55:25,496 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 09:55:25,496 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 09:55:25,503 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:25,557 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:25,659 INFO L138 Inliner]: procedures = 161, calls = 852, calls flagged for inlining = 73, calls inlined = 73, statements flattened = 2743 [2024-11-12 09:55:25,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 09:55:25,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 09:55:25,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 09:55:25,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 09:55:25,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:25,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:25,698 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,061 INFO L175 MemorySlicer]: Split 518 memory accesses to 8 slices as follows [19, 2, 19, 368, 9, 48, 44, 9]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [0, 2, 0, 5, 0, 0, 0, 0]. The 304 writes are split as follows [11, 0, 0, 196, 5, 48, 44, 0]. [2024-11-12 09:55:26,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,064 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,128 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,151 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,186 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,212 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 09:55:26,214 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 09:55:26,214 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 09:55:26,215 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 09:55:26,216 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (1/1) ... [2024-11-12 09:55:26,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 09:55:26,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 09:55:26,253 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) [2024-11-12 09:55:26,255 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 [2024-11-12 09:55:26,297 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-11-12 09:55:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-11-12 09:55:26,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-11-12 09:55:26,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-11-12 09:55:26,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_17 [2024-11-12 09:55:26,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_17 [2024-11-12 09:55:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-12 09:55:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-12 09:55:26,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-12 09:55:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-12 09:55:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-12 09:55:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-12 09:55:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-12 09:55:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-12 09:55:26,300 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-11-12 09:55:26,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-11-12 09:55:26,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-12 09:55:26,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-12 09:55:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-12 09:55:26,302 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-12 09:55:26,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-12 09:55:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 09:55:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 09:55:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 09:55:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 09:55:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 09:55:26,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-12 09:55:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-12 09:55:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-12 09:55:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-12 09:55:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-12 09:55:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2024-11-12 09:55:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2024-11-12 09:55:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-12 09:55:26,304 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-12 09:55:26,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-12 09:55:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-12 09:55:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-12 09:55:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-12 09:55:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-12 09:55:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-12 09:55:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-12 09:55:26,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-12 09:55:26,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-12 09:55:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-12 09:55:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-11-12 09:55:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-11-12 09:55:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-12 09:55:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-12 09:55:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-11-12 09:55:26,306 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-11-12 09:55:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 09:55:26,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-12 09:55:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-11-12 09:55:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-12 09:55:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-12 09:55:26,307 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 09:55:26,307 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-12 09:55:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-12 09:55:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-11-12 09:55:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2024-11-12 09:55:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-12 09:55:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-12 09:55:26,308 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-12 09:55:26,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-12 09:55:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-11-12 09:55:26,309 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-11-12 09:55:26,309 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-11-12 09:55:26,310 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-11-12 09:55:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 09:55:26,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 09:55:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 09:55:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 09:55:26,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-12 09:55:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-12 09:55:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-12 09:55:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-12 09:55:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-11-12 09:55:26,313 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-11-12 09:55:26,313 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-12 09:55:26,314 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-12 09:55:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-11-12 09:55:26,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-11-12 09:55:26,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 09:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-12 09:55:26,315 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-12 09:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_read_bulk_callback [2024-11-12 09:55:26,315 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_read_bulk_callback [2024-11-12 09:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-12 09:55:26,315 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-12 09:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-12 09:55:26,315 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-12 09:55:26,315 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_send_msg [2024-11-12 09:55:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_send_msg [2024-11-12 09:55:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-11-12 09:55:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-11-12 09:55:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-12 09:55:26,316 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-12 09:55:26,316 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-12 09:55:26,317 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-12 09:55:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-11-12 09:55:26,317 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-11-12 09:55:26,317 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-12 09:55:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-12 09:55:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-12 09:55:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-12 09:55:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-12 09:55:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-12 09:55:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-11-12 09:55:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-11-12 09:55:26,318 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-11-12 09:55:26,318 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-11-12 09:55:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-12 09:55:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-12 09:55:26,319 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-12 09:55:26,319 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_disconnect [2024-11-12 09:55:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_disconnect [2024-11-12 09:55:26,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 09:55:26,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 09:55:26,897 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 09:55:26,900 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 09:55:27,010 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-12 09:55:27,259 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-11-12 09:55:34,723 INFO L? ?]: Removed 1051 outVars from TransFormulas that were not future-live. [2024-11-12 09:55:34,723 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 09:55:34,764 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 09:55:34,764 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-12 09:55:34,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:55:34 BoogieIcfgContainer [2024-11-12 09:55:34,768 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 09:55:34,770 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 09:55:34,772 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 09:55:34,775 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 09:55:34,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 09:55:23" (1/3) ... [2024-11-12 09:55:34,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3fac3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:55:34, skipping insertion in model container [2024-11-12 09:55:34,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 09:55:25" (2/3) ... [2024-11-12 09:55:34,777 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a3fac3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 09:55:34, skipping insertion in model container [2024-11-12 09:55:34,777 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 09:55:34" (3/3) ... [2024-11-12 09:55:34,779 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 [2024-11-12 09:55:34,794 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 09:55:34,795 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-12 09:55:34,885 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 09:55:34,891 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;@345aee1c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 09:55:34,891 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-12 09:55:34,899 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) [2024-11-12 09:55:34,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-12 09:55:34,910 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:55:34,911 INFO L218 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] [2024-11-12 09:55:34,911 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:55:34,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:55:34,917 INFO L85 PathProgramCache]: Analyzing trace with hash 569038334, now seen corresponding path program 1 times [2024-11-12 09:55:34,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:55:34,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831012187] [2024-11-12 09:55:34,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:55:34,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:55:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:55:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 09:55:39,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 09:55:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 09:55:39,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 09:55:39,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 09:55:39,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 09:55:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 09:55:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 09:55:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 09:55:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 09:55:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:55:39,545 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-11-12 09:55:39,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:55:39,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831012187] [2024-11-12 09:55:39,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831012187] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:55:39,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:55:39,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:55:39,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435652357] [2024-11-12 09:55:39,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:55:39,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:55:39,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:55:39,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:55:39,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:55:39,588 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) [2024-11-12 09:55:43,647 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 [] [2024-11-12 09:55:47,951 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 [] [2024-11-12 09:56:00,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:56:00,166 INFO L93 Difference]: Finished difference Result 2655 states and 3802 transitions. [2024-11-12 09:56:00,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:56:00,169 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 [2024-11-12 09:56:00,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:56:00,196 INFO L225 Difference]: With dead ends: 2655 [2024-11-12 09:56:00,196 INFO L226 Difference]: Without dead ends: 1785 [2024-11-12 09:56:00,207 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 09:56:00,210 INFO L435 NwaCegarLoop]: 1055 mSDtfsCounter, 1518 mSDsluCounter, 1443 mSDsCounter, 0 mSdLazyCounter, 886 mSolverCounterSat, 422 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s 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, 20.1s IncrementalHoareTripleChecker+Time [2024-11-12 09:56:00,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1646 Valid, 2498 Invalid, 1310 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [422 Valid, 886 Invalid, 2 Unknown, 0 Unchecked, 20.1s Time] [2024-11-12 09:56:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1785 states. [2024-11-12 09:56:00,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1785 to 1609. [2024-11-12 09:56:00,409 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) [2024-11-12 09:56:00,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1609 states to 1609 states and 2189 transitions. [2024-11-12 09:56:00,427 INFO L78 Accepts]: Start accepts. Automaton has 1609 states and 2189 transitions. Word has length 83 [2024-11-12 09:56:00,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:56:00,429 INFO L471 AbstractCegarLoop]: Abstraction has 1609 states and 2189 transitions. [2024-11-12 09:56:00,429 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) [2024-11-12 09:56:00,429 INFO L276 IsEmpty]: Start isEmpty. Operand 1609 states and 2189 transitions. [2024-11-12 09:56:00,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-12 09:56:00,440 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:56:00,441 INFO L218 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] [2024-11-12 09:56:00,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 09:56:00,441 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:56:00,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:56:00,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1592493928, now seen corresponding path program 1 times [2024-11-12 09:56:00,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:56:00,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371912851] [2024-11-12 09:56:00,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:56:00,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:56:03,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:56:04,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 09:56:04,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 09:56:04,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 09:56:04,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 09:56:04,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 09:56:04,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 09:56:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 09:56:04,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 09:56:04,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 09:56:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 09:56:04,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 09:56:04,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:04,777 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-12 09:56:04,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:56:04,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371912851] [2024-11-12 09:56:04,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371912851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:56:04,779 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:56:04,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:56:04,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837007159] [2024-11-12 09:56:04,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:56:04,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:56:04,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:56:04,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:56:04,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:56:04,783 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) [2024-11-12 09:56:08,826 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 [] [2024-11-12 09:56:24,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:56:24,224 INFO L93 Difference]: Finished difference Result 5128 states and 7073 transitions. [2024-11-12 09:56:24,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 09:56:24,225 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 [2024-11-12 09:56:24,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:56:24,250 INFO L225 Difference]: With dead ends: 5128 [2024-11-12 09:56:24,251 INFO L226 Difference]: Without dead ends: 3544 [2024-11-12 09:56:24,258 INFO L434 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 [2024-11-12 09:56:24,260 INFO L435 NwaCegarLoop]: 1292 mSDtfsCounter, 1358 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 1046 mSolverCounterSat, 345 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1483 SdHoareTripleChecker+Valid, 2791 SdHoareTripleChecker+Invalid, 1392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 345 IncrementalHoareTripleChecker+Valid, 1046 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2024-11-12 09:56:24,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1483 Valid, 2791 Invalid, 1392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [345 Valid, 1046 Invalid, 1 Unknown, 0 Unchecked, 18.5s Time] [2024-11-12 09:56:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3544 states. [2024-11-12 09:56:24,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3544 to 3182. [2024-11-12 09:56:24,430 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) [2024-11-12 09:56:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3182 states to 3182 states and 4336 transitions. [2024-11-12 09:56:24,451 INFO L78 Accepts]: Start accepts. Automaton has 3182 states and 4336 transitions. Word has length 93 [2024-11-12 09:56:24,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:56:24,454 INFO L471 AbstractCegarLoop]: Abstraction has 3182 states and 4336 transitions. [2024-11-12 09:56:24,455 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) [2024-11-12 09:56:24,455 INFO L276 IsEmpty]: Start isEmpty. Operand 3182 states and 4336 transitions. [2024-11-12 09:56:24,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-12 09:56:24,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:56:24,458 INFO L218 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] [2024-11-12 09:56:24,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 09:56:24,459 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:56:24,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:56:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash -2123005374, now seen corresponding path program 1 times [2024-11-12 09:56:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:56:24,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142947397] [2024-11-12 09:56:24,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:56:24,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:56:27,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:56:28,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 09:56:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 09:56:28,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 09:56:28,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 09:56:28,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 09:56:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 09:56:28,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 09:56:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 09:56:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 09:56:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 09:56:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 09:56:28,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:28,438 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-12 09:56:28,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:56:28,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142947397] [2024-11-12 09:56:28,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142947397] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:56:28,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:56:28,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:56:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585327951] [2024-11-12 09:56:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:56:28,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:56:28,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:56:28,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:56:28,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:56:28,441 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) [2024-11-12 09:56:32,478 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 [] [2024-11-12 09:56:39,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 09:56:39,741 INFO L93 Difference]: Finished difference Result 3536 states and 4900 transitions. [2024-11-12 09:56:39,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 09:56:39,741 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 [2024-11-12 09:56:39,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 09:56:39,762 INFO L225 Difference]: With dead ends: 3536 [2024-11-12 09:56:39,762 INFO L226 Difference]: Without dead ends: 3533 [2024-11-12 09:56:39,764 INFO L434 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 [2024-11-12 09:56:39,768 INFO L435 NwaCegarLoop]: 924 mSDtfsCounter, 1271 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 266 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1371 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, 10.6s IncrementalHoareTripleChecker+Time [2024-11-12 09:56:39,769 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1371 Valid, 1446 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 495 Invalid, 1 Unknown, 0 Unchecked, 10.6s Time] [2024-11-12 09:56:39,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3533 states. [2024-11-12 09:56:39,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3533 to 3181. [2024-11-12 09:56:39,904 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) [2024-11-12 09:56:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3181 states to 3181 states and 4334 transitions. [2024-11-12 09:56:39,919 INFO L78 Accepts]: Start accepts. Automaton has 3181 states and 4334 transitions. Word has length 94 [2024-11-12 09:56:39,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 09:56:39,920 INFO L471 AbstractCegarLoop]: Abstraction has 3181 states and 4334 transitions. [2024-11-12 09:56:39,920 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) [2024-11-12 09:56:39,921 INFO L276 IsEmpty]: Start isEmpty. Operand 3181 states and 4334 transitions. [2024-11-12 09:56:39,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-12 09:56:39,922 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 09:56:39,922 INFO L218 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] [2024-11-12 09:56:39,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 09:56:39,923 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-12 09:56:39,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 09:56:39,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1388986149, now seen corresponding path program 1 times [2024-11-12 09:56:39,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 09:56:39,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275623029] [2024-11-12 09:56:39,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 09:56:39,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 09:56:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 09:56:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 09:56:42,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 09:56:42,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-12 09:56:42,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-12 09:56:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-12 09:56:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-12 09:56:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-12 09:56:42,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-12 09:56:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-12 09:56:42,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-12 09:56:42,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-12 09:56:42,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 09:56:42,645 INFO L134 CoverageAnalysis]: Checked inductivity of 264 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2024-11-12 09:56:42,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 09:56:42,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275623029] [2024-11-12 09:56:42,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275623029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 09:56:42,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 09:56:42,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 09:56:42,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474932576] [2024-11-12 09:56:42,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 09:56:42,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 09:56:42,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 09:56:42,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 09:56:42,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 09:56:42,649 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)