./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 4fc63b2a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/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 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU --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-dev-4fc63b2 [2024-10-31 22:03:26,691 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-31 22:03:26,761 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-31 22:03:26,766 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-31 22:03:26,766 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-31 22:03:26,800 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-31 22:03:26,801 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-31 22:03:26,802 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-31 22:03:26,802 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-31 22:03:26,804 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-31 22:03:26,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-31 22:03:26,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-31 22:03:26,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-31 22:03:26,806 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-31 22:03:26,806 INFO L153 SettingsManager]: * Use SBE=true [2024-10-31 22:03:26,806 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-31 22:03:26,807 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-31 22:03:26,807 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-31 22:03:26,811 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-31 22:03:26,811 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-31 22:03:26,812 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-31 22:03:26,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-31 22:03:26,813 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-31 22:03:26,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-31 22:03:26,814 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-31 22:03:26,814 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-31 22:03:26,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-31 22:03:26,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-31 22:03:26,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-31 22:03:26,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:26,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-31 22:03:26,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-31 22:03:26,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-31 22:03:26,831 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-31 22:03:26,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-31 22:03:26,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-31 22:03:26,832 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-31 22:03:26,832 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-31 22:03:26,832 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-31 22:03:26,832 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 781669661afd0476205c0d0f127c7931dffbaabf4aae46244e576c29ee5a8115 [2024-10-31 22:03:27,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-31 22:03:27,143 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-31 22:03:27,146 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-31 22:03:27,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-31 22:03:27,148 INFO L274 PluginConnector]: CDTParser initialized [2024-10-31 22:03:27,149 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/../../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 Unable to find full path for "g++" [2024-10-31 22:03:29,316 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-31 22:03:30,016 INFO L384 CDTParser]: Found 1 translation units. [2024-10-31 22:03:30,019 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/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 [2024-10-31 22:03:30,072 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/data/8a091c3db/e3a4e04e23854f54bf8c93e63d6a7e48/FLAGe5431fdee [2024-10-31 22:03:30,400 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/data/8a091c3db/e3a4e04e23854f54bf8c93e63d6a7e48 [2024-10-31 22:03:30,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-31 22:03:30,403 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-31 22:03:30,405 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:30,405 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-31 22:03:30,412 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-31 22:03:30,413 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:30" (1/1) ... [2024-10-31 22:03:30,414 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@740fc87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:30, skipping insertion in model container [2024-10-31 22:03:30,414 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.10 10:03:30" (1/1) ... [2024-10-31 22:03:30,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-31 22:03:31,517 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/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] [2024-10-31 22:03:32,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:32,069 INFO L200 MainTranslator]: Completed pre-run [2024-10-31 22:03:32,197 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; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [5448] [2024-10-31 22:03:32,199 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] [2024-10-31 22:03:32,200 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] [2024-10-31 22:03:32,204 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] [2024-10-31 22:03:32,206 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] [2024-10-31 22:03:32,219 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/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] [2024-10-31 22:03:32,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-31 22:03:32,610 INFO L204 MainTranslator]: Completed translation [2024-10-31 22:03:32,611 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32 WrapperNode [2024-10-31 22:03:32,611 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-31 22:03:32,612 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:32,613 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-31 22:03:32,613 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-31 22:03:32,623 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:32,693 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:32,856 INFO L138 Inliner]: procedures = 161, calls = 852, calls flagged for inlining = 73, calls inlined = 73, statements flattened = 2743 [2024-10-31 22:03:32,857 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-31 22:03:32,857 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-31 22:03:32,858 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-31 22:03:32,858 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-31 22:03:32,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:32,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:32,888 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,284 INFO L175 MemorySlicer]: Split 518 memory accesses to 8 slices as follows [2, 9, 9, 44, 368, 19, 19, 48]. 71 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 0, 5, 0, 0, 0]. The 304 writes are split as follows [0, 0, 5, 44, 196, 11, 0, 48]. [2024-10-31 22:03:33,288 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,289 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,400 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,432 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,451 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-31 22:03:33,454 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-31 22:03:33,454 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-31 22:03:33,455 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-31 22:03:33,456 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (1/1) ... [2024-10-31 22:03:33,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-31 22:03:33,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/z3 [2024-10-31 22:03:33,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-31 22:03:33,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6913726-5099-4ed1-99bd-10f960bf73f9/bin/uautomizer-verify-4GaUIPS5ZU/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-31 22:03:33,546 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_set [2024-10-31 22:03:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_set [2024-10-31 22:03:33,547 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_2 [2024-10-31 22:03:33,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_2 [2024-10-31 22:03:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_17 [2024-10-31 22:03:33,548 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_17 [2024-10-31 22:03:33,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-31 22:03:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-31 22:03:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-31 22:03:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-10-31 22:03:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-10-31 22:03:33,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-10-31 22:03:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-10-31 22:03:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-10-31 22:03:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_3 [2024-10-31 22:03:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_3 [2024-10-31 22:03:33,551 INFO L130 BoogieDeclarations]: Found specification of procedure usb_bulk_msg [2024-10-31 22:03:33,551 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_bulk_msg [2024-10-31 22:03:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-10-31 22:03:33,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-10-31 22:03:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-10-31 22:03:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-10-31 22:03:33,553 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-10-31 22:03:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-10-31 22:03:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-10-31 22:03:33,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-10-31 22:03:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-10-31 22:03:33,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-10-31 22:03:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-31 22:03:33,555 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-31 22:03:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-31 22:03:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-31 22:03:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-31 22:03:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-31 22:03:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-10-31 22:03:33,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-10-31 22:03:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-10-31 22:03:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-10-31 22:03:33,557 INFO L130 BoogieDeclarations]: Found specification of procedure can_free_echo_skb [2024-10-31 22:03:33,557 INFO L138 BoogieDeclarations]: Found implementation of procedure can_free_echo_skb [2024-10-31 22:03:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-10-31 22:03:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-10-31 22:03:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-10-31 22:03:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-10-31 22:03:33,558 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-10-31 22:03:33,558 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-10-31 22:03:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-10-31 22:03:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-10-31 22:03:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-10-31 22:03:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-10-31 22:03:33,559 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-10-31 22:03:33,559 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-10-31 22:03:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_anchored_urbs [2024-10-31 22:03:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_anchored_urbs [2024-10-31 22:03:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-10-31 22:03:33,560 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-10-31 22:03:33,560 INFO L130 BoogieDeclarations]: Found specification of procedure init_usb_anchor [2024-10-31 22:03:33,561 INFO L138 BoogieDeclarations]: Found implementation of procedure init_usb_anchor [2024-10-31 22:03:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-31 22:03:33,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-31 22:03:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-31 22:03:33,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-31 22:03:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-31 22:03:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-31 22:03:33,563 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-10-31 22:03:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-10-31 22:03:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-10-31 22:03:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-10-31 22:03:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2024-10-31 22:03:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2024-10-31 22:03:33,564 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-10-31 22:03:33,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-10-31 22:03:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-31 22:03:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-31 22:03:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-10-31 22:03:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-10-31 22:03:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-31 22:03:33,565 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-10-31 22:03:33,565 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-10-31 22:03:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2024-10-31 22:03:33,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2024-10-31 22:03:33,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_4 [2024-10-31 22:03:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_4 [2024-10-31 22:03:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-31 22:03:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-10-31 22:03:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-10-31 22:03:33,568 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-10-31 22:03:33,568 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-31 22:03:33,569 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-31 22:03:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-10-31 22:03:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-10-31 22:03:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-10-31 22:03:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-10-31 22:03:33,570 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2024-10-31 22:03:33,570 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2024-10-31 22:03:33,571 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-31 22:03:33,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-31 22:03:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-10-31 22:03:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-10-31 22:03:33,572 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2024-10-31 22:03:33,572 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2024-10-31 22:03:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-10-31 22:03:33,573 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-10-31 22:03:33,573 INFO L130 BoogieDeclarations]: Found specification of procedure usb_anchor_urb [2024-10-31 22:03:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_anchor_urb [2024-10-31 22:03:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-31 22:03:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-10-31 22:03:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-10-31 22:03:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_read_bulk_callback [2024-10-31 22:03:33,574 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_read_bulk_callback [2024-10-31 22:03:33,574 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-10-31 22:03:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-10-31 22:03:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-10-31 22:03:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-10-31 22:03:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_send_msg [2024-10-31 22:03:33,575 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_send_msg [2024-10-31 22:03:33,575 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_detach [2024-10-31 22:03:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_detach [2024-10-31 22:03:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-10-31 22:03:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-10-31 22:03:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-10-31 22:03:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-10-31 22:03:33,576 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unanchor_urb [2024-10-31 22:03:33,576 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unanchor_urb [2024-10-31 22:03:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-10-31 22:03:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-10-31 22:03:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-10-31 22:03:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-10-31 22:03:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-10-31 22:03:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-10-31 22:03:33,577 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2024-10-31 22:03:33,577 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2024-10-31 22:03:33,579 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2024-10-31 22:03:33,579 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2024-10-31 22:03:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-31 22:03:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-31 22:03:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-31 22:03:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-31 22:03:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-31 22:03:33,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2024-10-31 22:03:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-10-31 22:03:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-10-31 22:03:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure esd_usb2_disconnect [2024-10-31 22:03:33,582 INFO L138 BoogieDeclarations]: Found implementation of procedure esd_usb2_disconnect [2024-10-31 22:03:33,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-31 22:03:33,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-31 22:03:34,236 INFO L238 CfgBuilder]: Building ICFG [2024-10-31 22:03:34,240 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-31 22:03:34,385 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-10-31 22:03:34,705 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2024-10-31 22:03:42,426 INFO L? ?]: Removed 1051 outVars from TransFormulas that were not future-live. [2024-10-31 22:03:42,426 INFO L287 CfgBuilder]: Performing block encoding [2024-10-31 22:03:42,475 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-31 22:03:42,475 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-10-31 22:03:42,476 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:42 BoogieIcfgContainer [2024-10-31 22:03:42,476 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-31 22:03:42,478 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-31 22:03:42,481 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-31 22:03:42,486 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-31 22:03:42,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.10 10:03:30" (1/3) ... [2024-10-31 22:03:42,487 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd21970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:42, skipping insertion in model container [2024-10-31 22:03:42,488 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.10 10:03:32" (2/3) ... [2024-10-31 22:03:42,489 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dd21970 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.10 10:03:42, skipping insertion in model container [2024-10-31 22:03:42,489 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.10 10:03:42" (3/3) ... [2024-10-31 22:03:42,492 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 [2024-10-31 22:03:42,512 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-31 22:03:42,512 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-31 22:03:42,660 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-31 22:03:42,667 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;@869e903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-31 22:03:42,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-31 22:03:42,678 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) [2024-10-31 22:03:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-10-31 22:03:42,694 INFO L207 NwaCegarLoop]: Found error trace [2024-10-31 22:03:42,695 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] [2024-10-31 22:03:42,695 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-31 22:03:42,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-31 22:03:42,702 INFO L85 PathProgramCache]: Analyzing trace with hash 569038334, now seen corresponding path program 1 times [2024-10-31 22:03:42,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-31 22:03:42,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157015086] [2024-10-31 22:03:42,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-31 22:03:42,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-31 22:03:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-31 22:03:48,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-31 22:03:48,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-31 22:03:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-31 22:03:48,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-31 22:03:48,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-10-31 22:03:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-10-31 22:03:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-31 22:03:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-31 22:03:48,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-31 22:03:48,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-31 22:03:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-31 22:03:48,414 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-31 22:03:48,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-31 22:03:48,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157015086] [2024-10-31 22:03:48,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157015086] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-31 22:03:48,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-31 22:03:48,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-31 22:03:48,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258887763] [2024-10-31 22:03:48,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-31 22:03:48,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-31 22:03:48,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-31 22:03:48,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-31 22:03:48,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-31 22:03:48,463 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) [2024-10-31 22:03:52,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-10-31 22:03:56,847 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 []