./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx --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 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:23:13,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:23:13,427 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:23:13,432 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:23:13,433 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:23:13,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:23:13,462 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:23:13,463 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:23:13,464 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:23:13,464 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:23:13,465 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:23:13,466 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:23:13,467 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:23:13,467 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:23:13,468 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:23:13,469 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:23:13,469 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:23:13,470 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:23:13,470 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:23:13,471 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:23:13,472 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:23:13,472 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:23:13,473 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:23:13,473 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:23:13,474 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:23:13,474 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:23:13,475 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:23:13,475 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:23:13,476 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:13,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:23:13,477 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:23:13,478 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:23:13,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:23:13,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:23:13,478 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:23:13,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:23:13,479 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:23:13,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:23:13,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:23:13,480 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_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2023-11-21 22:23:13,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:23:13,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:23:13,891 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:23:13,894 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:23:13,894 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:23:13,896 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2023-11-21 22:23:17,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:23:17,833 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:23:17,833 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2023-11-21 22:23:17,888 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/data/9bcc3ed7c/f9e37832d9914f1ca9774768012f48c0/FLAG305d0862e [2023-11-21 22:23:17,912 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/data/9bcc3ed7c/f9e37832d9914f1ca9774768012f48c0 [2023-11-21 22:23:17,918 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:23:17,921 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:23:17,925 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:17,926 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:23:17,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:23:17,935 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:17,937 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d3a5898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:17, skipping insertion in model container [2023-11-21 22:23:17,937 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:23:17" (1/1) ... [2023-11-21 22:23:18,075 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:23:20,568 WARN L240 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_d439ccf3-338f-4318-89fc-b25ebb513893/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2023-11-21 22:23:20,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:20,682 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:23:20,882 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5924] [2023-11-21 22:23:20,885 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5932] [2023-11-21 22:23:20,959 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"); [7007] [2023-11-21 22:23:20,959 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)); [7014] [2023-11-21 22:23:20,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7040] [2023-11-21 22:23:21,344 WARN L240 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_d439ccf3-338f-4318-89fc-b25ebb513893/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i[287455,287468] [2023-11-21 22:23:21,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:23:21,442 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:23:21,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21 WrapperNode [2023-11-21 22:23:21,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:23:21,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:21,445 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:23:21,445 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:23:21,453 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,555 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,771 INFO L138 Inliner]: procedures = 274, calls = 2182, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 5209 [2023-11-21 22:23:21,772 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:23:21,773 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:23:21,773 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:23:21,773 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:23:21,784 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:21,815 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:22,711 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memset is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:23:22,711 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:22,712 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:22,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:22,926 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:22,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:22,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:23,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:23:23,028 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:23:23,029 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:23:23,029 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:23:23,031 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (1/1) ... [2023-11-21 22:23:23,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:23:23,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:23:23,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:23:23,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d439ccf3-338f-4318-89fc-b25ebb513893/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:23:23,119 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2023-11-21 22:23:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2023-11-21 22:23:23,120 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2023-11-21 22:23:23,120 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2023-11-21 22:23:23,122 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:23:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:23:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 22:23:23,123 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 22:23:23,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:23:23,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:23:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:23:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:23:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2023-11-21 22:23:23,124 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2023-11-21 22:23:23,124 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2023-11-21 22:23:23,125 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2023-11-21 22:23:23,126 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-11-21 22:23:23,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-11-21 22:23:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-21 22:23:23,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-21 22:23:23,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:23:23,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:23:23,128 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2023-11-21 22:23:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2023-11-21 22:23:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2023-11-21 22:23:23,129 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2023-11-21 22:23:23,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:23:23,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:23:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-21 22:23:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-21 22:23:23,131 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:23:23,131 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:23:23,132 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2023-11-21 22:23:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2023-11-21 22:23:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-11-21 22:23:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-11-21 22:23:23,133 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:23:23,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-21 22:23:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2023-11-21 22:23:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2023-11-21 22:23:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2023-11-21 22:23:23,134 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2023-11-21 22:23:23,134 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2023-11-21 22:23:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2023-11-21 22:23:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2023-11-21 22:23:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2023-11-21 22:23:23,135 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2023-11-21 22:23:23,135 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2023-11-21 22:23:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-21 22:23:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-21 22:23:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2023-11-21 22:23:23,136 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2023-11-21 22:23:23,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:23:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2023-11-21 22:23:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2023-11-21 22:23:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2023-11-21 22:23:23,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2023-11-21 22:23:23,137 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2023-11-21 22:23:23,138 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2023-11-21 22:23:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:23:23,139 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-11-21 22:23:23,140 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-11-21 22:23:23,140 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-21 22:23:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-21 22:23:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 22:23:23,141 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 22:23:23,141 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2023-11-21 22:23:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2023-11-21 22:23:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:23:23,142 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2023-11-21 22:23:23,142 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2023-11-21 22:23:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:23:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 22:23:23,143 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 22:23:23,143 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-11-21 22:23:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-11-21 22:23:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2023-11-21 22:23:23,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2023-11-21 22:23:23,144 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:23:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:23:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2023-11-21 22:23:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2023-11-21 22:23:23,145 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-21 22:23:23,145 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-21 22:23:23,146 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2023-11-21 22:23:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2023-11-21 22:23:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-21 22:23:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-21 22:23:23,147 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2023-11-21 22:23:23,147 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2023-11-21 22:23:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2023-11-21 22:23:23,148 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2023-11-21 22:23:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:23:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:23:23,148 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2023-11-21 22:23:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2023-11-21 22:23:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:23:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-21 22:23:23,149 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-21 22:23:23,149 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2023-11-21 22:23:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2023-11-21 22:23:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-21 22:23:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-21 22:23:23,150 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:23:23,150 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:23:23,151 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2023-11-21 22:23:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2023-11-21 22:23:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2023-11-21 22:23:23,152 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2023-11-21 22:23:23,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:23:23,153 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:23:23,153 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:23:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-11-21 22:23:23,154 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-11-21 22:23:23,154 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2023-11-21 22:23:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2023-11-21 22:23:23,155 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:23:23,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:23:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2023-11-21 22:23:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2023-11-21 22:23:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2023-11-21 22:23:23,156 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2023-11-21 22:23:23,156 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 22:23:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 22:23:23,157 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2023-11-21 22:23:23,157 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2023-11-21 22:23:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-21 22:23:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-21 22:23:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2023-11-21 22:23:23,158 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2023-11-21 22:23:23,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:23:23,159 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-21 22:23:23,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-21 22:23:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-21 22:23:23,161 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-21 22:23:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:23:23,161 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-21 22:23:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-21 22:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2023-11-21 22:23:23,162 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2023-11-21 22:23:23,162 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2023-11-21 22:23:23,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2023-11-21 22:23:23,163 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2023-11-21 22:23:23,164 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2023-11-21 22:23:23,165 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:23:23,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 22:23:23,169 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:23:23,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:23:23,170 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2023-11-21 22:23:23,171 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2023-11-21 22:23:23,171 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-21 22:23:23,172 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-21 22:23:23,173 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2023-11-21 22:23:23,173 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2023-11-21 22:23:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-21 22:23:23,179 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-21 22:23:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:23:23,179 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2023-11-21 22:23:23,180 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2023-11-21 22:23:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-21 22:23:23,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2023-11-21 22:23:23,181 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2023-11-21 22:23:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2023-11-21 22:23:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2023-11-21 22:23:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2023-11-21 22:23:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:23:23,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:23:23,182 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-11-21 22:23:23,183 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-11-21 22:23:24,105 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:23:24,109 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:23:25,532 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:23:31,833 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:23:36,855 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:23:36,855 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:23:36,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:36 BoogieIcfgContainer [2023-11-21 22:23:36,858 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:23:36,861 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:23:36,861 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:23:36,865 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:23:36,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:23:17" (1/3) ... [2023-11-21 22:23:36,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780820db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:36, skipping insertion in model container [2023-11-21 22:23:36,867 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:23:21" (2/3) ... [2023-11-21 22:23:36,867 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780820db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:23:36, skipping insertion in model container [2023-11-21 22:23:36,868 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:23:36" (3/3) ... [2023-11-21 22:23:36,869 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2023-11-21 22:23:36,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:23:36,889 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:23:36,994 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:23:37,002 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@3266b911, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:23:37,003 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:23:37,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 1635 states, 933 states have (on average 1.309753483386924) internal successors, (1222), 981 states have internal predecessors, (1222), 624 states have call successors, (624), 77 states have call predecessors, (624), 76 states have return successors, (618), 603 states have call predecessors, (618), 618 states have call successors, (618) [2023-11-21 22:23:37,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-11-21 22:23:37,044 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:23:37,045 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:23:37,046 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:23:37,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:23:37,053 INFO L85 PathProgramCache]: Analyzing trace with hash 792603274, now seen corresponding path program 1 times [2023-11-21 22:23:37,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:23:37,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239031979] [2023-11-21 22:23:37,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:23:37,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:23:37,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:23:37,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:23:37,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:23:37,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:23:37,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:23:37,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:23:37,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-21 22:23:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:37,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:23:37,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:38,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:23:38,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:38,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-21 22:23:38,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:38,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:23:38,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:38,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2023-11-21 22:23:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:38,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:23:38,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:23:38,102 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-21 22:23:38,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:23:38,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239031979] [2023-11-21 22:23:38,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239031979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:23:38,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:23:38,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:23:38,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470581497] [2023-11-21 22:23:38,110 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:23:38,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-21 22:23:38,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:23:38,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-21 22:23:38,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-21 22:23:38,152 INFO L87 Difference]: Start difference. First operand has 1635 states, 933 states have (on average 1.309753483386924) internal successors, (1222), 981 states have internal predecessors, (1222), 624 states have call successors, (624), 77 states have call predecessors, (624), 76 states have return successors, (618), 603 states have call predecessors, (618), 618 states have call successors, (618) Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-21 22:23:44,607 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:23:46,615 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:23:48,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:23:50,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:23:52,633 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:23:54,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:24:02,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 22:24:02,442 INFO L93 Difference]: Finished difference Result 5182 states and 8080 transitions. [2023-11-21 22:24:02,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-21 22:24:02,445 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 72 [2023-11-21 22:24:02,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 22:24:02,533 INFO L225 Difference]: With dead ends: 5182 [2023-11-21 22:24:02,533 INFO L226 Difference]: Without dead ends: 3545 [2023-11-21 22:24:02,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2023-11-21 22:24:02,579 INFO L413 NwaCegarLoop]: 1887 mSDtfsCounter, 4514 mSDsluCounter, 2042 mSDsCounter, 0 mSdLazyCounter, 3171 mSolverCounterSat, 5046 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4885 SdHoareTripleChecker+Valid, 3929 SdHoareTripleChecker+Invalid, 8221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5046 IncrementalHoareTripleChecker+Valid, 3171 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.5s IncrementalHoareTripleChecker+Time [2023-11-21 22:24:02,581 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4885 Valid, 3929 Invalid, 8221 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5046 Valid, 3171 Invalid, 4 Unknown, 0 Unchecked, 23.5s Time] [2023-11-21 22:24:02,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3545 states. [2023-11-21 22:24:03,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3545 to 3150. [2023-11-21 22:24:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3150 states, 1802 states have (on average 1.3013318534961154) internal successors, (2345), 1880 states have internal predecessors, (2345), 1198 states have call successors, (1198), 150 states have call predecessors, (1198), 149 states have return successors, (1197), 1167 states have call predecessors, (1197), 1197 states have call successors, (1197) [2023-11-21 22:24:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3150 states to 3150 states and 4740 transitions. [2023-11-21 22:24:03,126 INFO L78 Accepts]: Start accepts. Automaton has 3150 states and 4740 transitions. Word has length 72 [2023-11-21 22:24:03,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 22:24:03,130 INFO L495 AbstractCegarLoop]: Abstraction has 3150 states and 4740 transitions. [2023-11-21 22:24:03,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 5 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2023-11-21 22:24:03,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3150 states and 4740 transitions. [2023-11-21 22:24:03,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-21 22:24:03,147 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:24:03,148 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:24:03,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:24:03,149 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:24:03,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:24:03,154 INFO L85 PathProgramCache]: Analyzing trace with hash 2032214677, now seen corresponding path program 1 times [2023-11-21 22:24:03,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:24:03,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886809511] [2023-11-21 22:24:03,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:24:03,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:24:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat