./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 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_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.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_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2 --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 12:32:32,857 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 12:32:32,938 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 12:32:32,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 12:32:32,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 12:32:32,979 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 12:32:32,980 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 12:32:32,980 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 12:32:32,981 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 12:32:32,983 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 12:32:32,983 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 12:32:32,983 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 12:32:32,984 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 12:32:32,984 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 12:32:32,984 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 12:32:32,986 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 12:32:32,987 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 12:32:32,987 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 12:32:32,987 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 12:32:32,988 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 12:32:32,988 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 12:32:32,989 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 12:32:32,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 12:32:32,990 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 12:32:32,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 12:32:32,990 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 12:32:32,991 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 12:32:32,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 12:32:32,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 12:32:32,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 12:32:32,994 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 12:32:32,994 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 12:32:32,995 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 12:32:32,995 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 12:32:32,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 12:32:32,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:32,996 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 12:32:32,996 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 12:32:32,997 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 12:32:32,997 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 12:32:32,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 12:32:32,999 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 12:32:33,000 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 12:32:33,000 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 12:32:33,000 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66b2f104726c03e3846e38f6b09c6a45d6c8d058156e96895db9342600740310 [2024-11-02 12:32:33,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 12:32:33,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 12:32:33,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 12:32:33,345 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 12:32:33,347 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 12:32:33,348 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/../../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 Unable to find full path for "g++" [2024-11-02 12:32:35,653 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 12:32:36,325 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 12:32:36,325 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/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 [2024-11-02 12:32:36,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/data/80e93d859/2ed1534ef1c242d8acc87f2fab5bfdef/FLAG410957b8f [2024-11-02 12:32:36,727 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/data/80e93d859/2ed1534ef1c242d8acc87f2fab5bfdef [2024-11-02 12:32:36,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 12:32:36,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 12:32:36,733 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:36,734 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 12:32:36,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 12:32:36,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:36" (1/1) ... [2024-11-02 12:32:36,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f5f262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:36, skipping insertion in model container [2024-11-02 12:32:36,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 12:32:36" (1/1) ... [2024-11-02 12:32:36,896 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 12:32:39,297 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_80da02e9-78aa-4f2c-b925-59d217b6e688/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] [2024-11-02 12:32:39,359 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:39,402 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 12:32:39,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5924] [2024-11-02 12:32:39,694 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5932] [2024-11-02 12:32:39,783 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] [2024-11-02 12:32:39,783 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] [2024-11-02 12:32:39,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [7040] [2024-11-02 12:32:40,103 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_80da02e9-78aa-4f2c-b925-59d217b6e688/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] [2024-11-02 12:32:40,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 12:32:40,186 INFO L204 MainTranslator]: Completed translation [2024-11-02 12:32:40,187 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40 WrapperNode [2024-11-02 12:32:40,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 12:32:40,188 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:40,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 12:32:40,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 12:32:40,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,289 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,565 INFO L138 Inliner]: procedures = 273, calls = 2182, calls flagged for inlining = 123, calls inlined = 120, statements flattened = 5625 [2024-11-02 12:32:40,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 12:32:40,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 12:32:40,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 12:32:40,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 12:32:40,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,631 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,757 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,799 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,822 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,839 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,873 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 12:32:40,875 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 12:32:40,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 12:32:40,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 12:32:40,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (1/1) ... [2024-11-02 12:32:40,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 12:32:40,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 12:32:40,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 12:32:40,919 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80da02e9-78aa-4f2c-b925-59d217b6e688/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 12:32:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_running_reset [2024-11-02 12:32:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_running_reset [2024-11-02 12:32:40,948 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_open [2024-11-02 12:32:40,948 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_open [2024-11-02 12:32:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 12:32:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 12:32:40,949 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-02 12:32:40,949 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-02 12:32:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-02 12:32:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-02 12:32:40,950 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-02 12:32:40,950 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-02 12:32:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_dec_reset [2024-11-02 12:32:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_dec_reset [2024-11-02 12:32:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_get_link_status [2024-11-02 12:32:40,951 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_get_link_status [2024-11-02 12:32:40,951 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-02 12:32:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-02 12:32:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-02 12:32:40,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-02 12:32:40,952 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 12:32:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 12:32:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_set_circuit_type [2024-11-02 12:32:40,953 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_set_circuit_type [2024-11-02 12:32:40,953 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkinput [2024-11-02 12:32:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkinput [2024-11-02 12:32:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-02 12:32:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-02 12:32:40,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-02 12:32:40,954 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-02 12:32:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-02 12:32:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-02 12:32:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_100ft [2024-11-02 12:32:40,955 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_100ft [2024-11-02 12:32:40,955 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-02 12:32:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-02 12:32:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-02 12:32:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-02 12:32:40,956 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ds3_set_scram [2024-11-02 12:32:40,956 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ds3_set_scram [2024-11-02 12:32:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_change_mtu [2024-11-02 12:32:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_change_mtu [2024-11-02 12:32:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_close [2024-11-02 12:32:40,957 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_close [2024-11-02 12:32:40,957 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_gpio_mkoutput [2024-11-02 12:32:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_gpio_mkoutput [2024-11-02 12:32:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_reset [2024-11-02 12:32:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_reset [2024-11-02 12:32:40,958 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-02 12:32:40,958 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-02 12:32:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_get_stats [2024-11-02 12:32:40,959 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_get_stats [2024-11-02 12:32:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 12:32:40,959 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_sc [2024-11-02 12:32:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_sc [2024-11-02 12:32:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_driver_timeout [2024-11-02 12:32:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_driver_timeout [2024-11-02 12:32:40,960 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_netif [2024-11-02 12:32:40,960 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_netif [2024-11-02 12:32:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 12:32:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-02 12:32:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-02 12:32:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-02 12:32:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-02 12:32:40,961 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-02 12:32:40,961 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-02 12:32:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_trace [2024-11-02 12:32:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_trace [2024-11-02 12:32:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 12:32:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110 [2024-11-02 12:32:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110 [2024-11-02 12:32:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-02 12:32:40,962 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-02 12:32:40,962 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2024-11-02 12:32:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2024-11-02 12:32:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure __might_fault [2024-11-02 12:32:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __might_fault [2024-11-02 12:32:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-02 12:32:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-02 12:32:40,963 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_type [2024-11-02 12:32:40,963 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_type [2024-11-02 12:32:40,964 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-02 12:32:40,964 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-02 12:32:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_remove_one [2024-11-02 12:32:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_remove_one [2024-11-02 12:32:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2024-11-02 12:32:40,965 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2024-11-02 12:32:40,965 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_t1_write [2024-11-02 12:32:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_t1_write [2024-11-02 12:32:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_close [2024-11-02 12:32:40,966 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_close [2024-11-02 12:32:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 12:32:40,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 12:32:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_off [2024-11-02 12:32:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_off [2024-11-02 12:32:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 12:32:40,967 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-02 12:32:40,967 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-02 12:32:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2024-11-02 12:32:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2024-11-02 12:32:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-02 12:32:40,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-02 12:32:40,968 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 12:32:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 12:32:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_softreset [2024-11-02 12:32:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_softreset [2024-11-02 12:32:40,969 INFO L130 BoogieDeclarations]: Found specification of procedure write_av9110_bit [2024-11-02 12:32:40,969 INFO L138 BoogieDeclarations]: Found implementation of procedure write_av9110_bit [2024-11-02 12:32:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 12:32:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-02 12:32:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-02 12:32:40,970 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-02 12:32:40,970 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-02 12:32:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure dev_alloc_skb [2024-11-02 12:32:40,971 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_alloc_skb [2024-11-02 12:32:40,971 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-02 12:32:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-02 12:32:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_writereg [2024-11-02 12:32:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_writereg [2024-11-02 12:32:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ioctl [2024-11-02 12:32:40,972 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ioctl [2024-11-02 12:32:40,972 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-02 12:32:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-02 12:32:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_attach [2024-11-02 12:32:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_attach [2024-11-02 12:32:40,973 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2024-11-02 12:32:40,973 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2024-11-02 12:32:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_ssi_set_status [2024-11-02 12:32:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_ssi_set_status [2024-11-02 12:32:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 12:32:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-02 12:32:40,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-02 12:32:40,974 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-02 12:32:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-02 12:32:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 12:32:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-02 12:32:40,975 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-02 12:32:40,975 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 12:32:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_mii_readreg [2024-11-02 12:32:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_mii_readreg [2024-11-02 12:32:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-02 12:32:40,976 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-02 12:32:40,976 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2024-11-02 12:32:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2024-11-02 12:32:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-02 12:32:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-02 12:32:40,977 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:32:40,977 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-02 12:32:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_proto_open [2024-11-02 12:32:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_proto_open [2024-11-02 12:32:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-02 12:32:40,978 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-02 12:32:40,978 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_led_on [2024-11-02 12:32:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_led_on [2024-11-02 12:32:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2024-11-02 12:32:40,979 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2024-11-02 12:32:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 12:32:40,979 INFO L130 BoogieDeclarations]: Found specification of procedure lmc_set_protocol [2024-11-02 12:32:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure lmc_set_protocol [2024-11-02 12:32:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-11-02 12:32:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2024-11-02 12:32:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2024-11-02 12:32:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2024-11-02 12:32:40,980 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2024-11-02 12:32:40,980 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2024-11-02 12:32:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 12:32:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 12:32:40,981 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2024-11-02 12:32:40,981 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2024-11-02 12:32:41,728 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 12:32:41,732 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 12:32:43,541 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-02 12:32:52,956 INFO L? ?]: Removed 1959 outVars from TransFormulas that were not future-live. [2024-11-02 12:32:52,956 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 12:32:56,398 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 12:32:56,399 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 12:32:56,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:56 BoogieIcfgContainer [2024-11-02 12:32:56,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 12:32:56,402 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 12:32:56,402 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 12:32:56,406 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 12:32:56,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 12:32:36" (1/3) ... [2024-11-02 12:32:56,407 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2822275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:56, skipping insertion in model container [2024-11-02 12:32:56,408 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 12:32:40" (2/3) ... [2024-11-02 12:32:56,409 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2822275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 12:32:56, skipping insertion in model container [2024-11-02 12:32:56,409 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 12:32:56" (3/3) ... [2024-11-02 12:32:56,410 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--wan--lmc--lmc.ko-entry_point.cil.out.i [2024-11-02 12:32:56,432 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 12:32:56,432 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 12:32:56,574 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 12:32:56,582 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=FINITE_AUTOMATA, 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;@491eccf1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 12:32:56,583 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 12:32:56,596 INFO L276 IsEmpty]: Start isEmpty. Operand has 1642 states, 940 states have (on average 1.3074468085106383) internal successors, (1229), 988 states have internal predecessors, (1229), 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) [2024-11-02 12:32:56,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-02 12:32:56,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 12:32:56,616 INFO L215 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] [2024-11-02 12:32:56,617 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 12:32:56,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 12:32:56,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1417947312, now seen corresponding path program 1 times [2024-11-02 12:32:56,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 12:32:56,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222672013] [2024-11-02 12:32:56,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 12:32:56,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 12:33:02,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 12:33:03,061 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-02 12:33:03,061 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 12:33:03,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222672013] [2024-11-02 12:33:03,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222672013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 12:33:03,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 12:33:03,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 12:33:03,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411239355] [2024-11-02 12:33:03,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 12:33:03,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 12:33:03,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 12:33:03,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 12:33:03,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 12:33:03,108 INFO L87 Difference]: Start difference. First operand has 1642 states, 940 states have (on average 1.3074468085106383) internal successors, (1229), 988 states have internal predecessors, (1229), 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 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-02 12:33:05,276 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []