./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4fc63b2a 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_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/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_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/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_5bbad75c-703f-482e-a73b-bd9198ff1f5d/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 f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4fc63b2 [2024-11-02 11:25:46,673 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-02 11:25:46,782 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-02 11:25:46,786 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-02 11:25:46,787 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-02 11:25:46,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-02 11:25:46,817 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-02 11:25:46,818 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-02 11:25:46,819 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-02 11:25:46,820 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-02 11:25:46,820 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-02 11:25:46,821 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-02 11:25:46,822 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-02 11:25:46,822 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-02 11:25:46,824 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-02 11:25:46,825 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-02 11:25:46,825 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-02 11:25:46,826 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-02 11:25:46,826 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-02 11:25:46,826 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-02 11:25:46,826 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-02 11:25:46,827 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-02 11:25:46,828 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-02 11:25:46,828 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-02 11:25:46,828 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-02 11:25:46,828 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-02 11:25:46,829 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-02 11:25:46,829 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-02 11:25:46,829 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-02 11:25:46,830 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-02 11:25:46,830 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-02 11:25:46,830 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-02 11:25:46,830 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-02 11:25:46,833 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-02 11:25:46,833 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-02 11:25:46,833 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:46,834 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-02 11:25:46,834 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-02 11:25:46,835 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-02 11:25:46,835 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-02 11:25:46,835 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-02 11:25:46,836 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-02 11:25:46,836 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-02 11:25:46,836 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-02 11:25:46,836 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_5bbad75c-703f-482e-a73b-bd9198ff1f5d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f51fd7a7e803b337407ebecb084bc416ae9c8b7a3d33ff72a0e0702d21471e83 [2024-11-02 11:25:47,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-02 11:25:47,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-02 11:25:47,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-02 11:25:47,226 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-02 11:25:47,227 INFO L274 PluginConnector]: CDTParser initialized [2024-11-02 11:25:47,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/../../sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i Unable to find full path for "g++" [2024-11-02 11:25:49,245 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-02 11:25:49,784 INFO L384 CDTParser]: Found 1 translation units. [2024-11-02 11:25:49,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2024-11-02 11:25:49,827 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/data/fb633c218/e5847b51274a414ab9cdce1379a461af/FLAG36da5afe9 [2024-11-02 11:25:49,844 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/data/fb633c218/e5847b51274a414ab9cdce1379a461af [2024-11-02 11:25:49,846 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-02 11:25:49,848 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-02 11:25:49,849 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:49,850 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-02 11:25:49,856 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-02 11:25:49,857 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:49" (1/1) ... [2024-11-02 11:25:49,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@635823a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:49, skipping insertion in model container [2024-11-02 11:25:49,861 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.11 11:25:49" (1/1) ... [2024-11-02 11:25:50,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-02 11:25:51,737 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_5bbad75c-703f-482e-a73b-bd9198ff1f5d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2024-11-02 11:25:51,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:51,887 INFO L200 MainTranslator]: Completed pre-run [2024-11-02 11:25:52,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4501] [2024-11-02 11:25:52,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [4508] [2024-11-02 11:25:52,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4515-4516] [2024-11-02 11:25:52,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".section .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.previous\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [4523-4524] [2024-11-02 11:25:52,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/anthill/stuff/tacas-comp/inst/current/envs/linux-3.0.1/linux-3.0.1/arch/x86/include/asm/paravirt.h"), "i" (853), "i" (12UL)); [4560-4561] [2024-11-02 11:25:52,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [4566-4568] [2024-11-02 11:25:52,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [4616] [2024-11-02 11:25:52,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [4623] [2024-11-02 11:25:52,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4630] [2024-11-02 11:25:52,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %0,%1": : "q" (val), "m" (*((unsigned char volatile *)addr)): "memory"); [4637] [2024-11-02 11:25:52,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [4644] [2024-11-02 11:25:52,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4651] [2024-11-02 11:25:52,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [4692] [2024-11-02 11:25:52,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [4699] [2024-11-02 11:25:52,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [4706] [2024-11-02 11:25:52,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [4713] [2024-11-02 11:25:52,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [4720] [2024-11-02 11:25:52,282 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_5bbad75c-703f-482e-a73b-bd9198ff1f5d/sv-benchmarks/c/ldv-linux-3.0/module_get_put-drivers-net-wan-farsync.ko.cil.out.i[221005,221018] [2024-11-02 11:25:52,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-02 11:25:52,597 INFO L204 MainTranslator]: Completed translation [2024-11-02 11:25:52,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52 WrapperNode [2024-11-02 11:25:52,598 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-02 11:25:52,599 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:52,599 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-02 11:25:52,599 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-02 11:25:52,607 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,834 INFO L138 Inliner]: procedures = 200, calls = 1603, calls flagged for inlining = 99, calls inlined = 85, statements flattened = 3701 [2024-11-02 11:25:52,835 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-02 11:25:52,836 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-02 11:25:52,836 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-02 11:25:52,836 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-02 11:25:52,845 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,845 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,866 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,957 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:52,983 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:53,015 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-02 11:25:53,016 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-02 11:25:53,016 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-02 11:25:53,016 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-02 11:25:53,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (1/1) ... [2024-11-02 11:25:53,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-02 11:25:53,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/z3 [2024-11-02 11:25:53,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-02 11:25:53,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5bbad75c-703f-482e-a73b-bd9198ff1f5d/bin/utaipan-verify-DbMuA5NWw2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-02 11:25:53,091 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-02 11:25:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-02 11:25:53,092 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-02 11:25:53,092 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-02 11:25:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-02 11:25:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-02 11:25:53,093 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-02 11:25:53,093 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-02 11:25:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-02 11:25:53,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-02 11:25:53,094 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2024-11-02 11:25:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2024-11-02 11:25:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-02 11:25:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-02 11:25:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2024-11-02 11:25:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2024-11-02 11:25:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-11-02 11:25:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-11-02 11:25:53,095 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2024-11-02 11:25:53,095 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2024-11-02 11:25:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toio [2024-11-02 11:25:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toio [2024-11-02 11:25:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-02 11:25:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-02 11:25:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-11-02 11:25:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-11-02 11:25:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-02 11:25:53,096 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-02 11:25:53,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-02 11:25:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-02 11:25:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-02 11:25:53,099 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-02 11:25:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure ioremap [2024-11-02 11:25:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ioremap [2024-11-02 11:25:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-02 11:25:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-02 11:25:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_blast_assert [2024-11-02 11:25:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_blast_assert [2024-11-02 11:25:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-02 11:25:53,139 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-02 11:25:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-02 11:25:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-02 11:25:53,140 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-02 11:25:53,140 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-02 11:25:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-02 11:25:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-02 11:25:53,141 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-02 11:25:53,141 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-02 11:25:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-02 11:25:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-02 11:25:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-02 11:25:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-02 11:25:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_type_trans [2024-11-02 11:25:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_type_trans [2024-11-02 11:25:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-02 11:25:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-02 11:25:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2024-11-02 11:25:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2024-11-02 11:25:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure farsync_type_trans [2024-11-02 11:25:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure farsync_type_trans [2024-11-02 11:25:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-02 11:25:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-02 11:25:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-02 11:25:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-02 11:25:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-02 11:25:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-02 11:25:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-02 11:25:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-02 11:25:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-02 11:25:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-02 11:25:53,145 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-02 11:25:53,145 INFO L130 BoogieDeclarations]: Found specification of procedure dev_to_hdlc [2024-11-02 11:25:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_to_hdlc [2024-11-02 11:25:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-02 11:25:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-02 11:25:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure fst_issue_cmd [2024-11-02 11:25:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_issue_cmd [2024-11-02 11:25:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-02 11:25:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-02 11:25:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-02 11:25:53,146 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-02 11:25:53,146 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-02 11:25:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-02 11:25:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-02 11:25:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure fst_disable_intr [2024-11-02 11:25:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_disable_intr [2024-11-02 11:25:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-02 11:25:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-02 11:25:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-02 11:25:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-02 11:25:53,147 INFO L130 BoogieDeclarations]: Found specification of procedure fst_cpureset [2024-11-02 11:25:53,147 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_cpureset [2024-11-02 11:25:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-02 11:25:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure tasklet_schedule [2024-11-02 11:25:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure tasklet_schedule [2024-11-02 11:25:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure fst_process_rx_status [2024-11-02 11:25:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_process_rx_status [2024-11-02 11:25:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure fst_q_work_item [2024-11-02 11:25:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_q_work_item [2024-11-02 11:25:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-02 11:25:53,148 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-02 11:25:53,148 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-02 11:25:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-02 11:25:53,150 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2024-11-02 11:25:53,150 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2024-11-02 11:25:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure hdlc_ioctl [2024-11-02 11:25:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure hdlc_ioctl [2024-11-02 11:25:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-02 11:25:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-02 11:25:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-11-02 11:25:53,151 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-11-02 11:25:53,151 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-11-02 11:25:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-11-02 11:25:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2024-11-02 11:25:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2024-11-02 11:25:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure fst_clear_intr [2024-11-02 11:25:53,152 INFO L138 BoogieDeclarations]: Found implementation of procedure fst_clear_intr [2024-11-02 11:25:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-02 11:25:53,152 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2024-11-02 11:25:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2024-11-02 11:25:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reset_mac_header [2024-11-02 11:25:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reset_mac_header [2024-11-02 11:25:53,153 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2024-11-02 11:25:53,153 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2024-11-02 11:25:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2024-11-02 11:25:53,154 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2024-11-02 11:25:53,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-02 11:25:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-02 11:25:53,155 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-02 11:25:53,155 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-02 11:25:53,765 INFO L238 CfgBuilder]: Building ICFG [2024-11-02 11:25:53,768 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-02 11:25:54,629 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:25:54,644 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:25:54,656 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:25:54,657 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:25:54,660 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:25:54,662 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:25:54,676 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-02 11:26:03,266 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##268: assume !false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##267: assume false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##282: assume !false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##281: assume false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##313: assume !false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##312: assume false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##319: assume !false; [2024-11-02 11:26:03,267 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##318: assume false; [2024-11-02 11:26:03,268 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##463: assume !false; [2024-11-02 11:26:03,268 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##462: assume false; [2024-11-02 11:26:03,268 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##18: assume !false; [2024-11-02 11:26:03,268 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##17: assume false; [2024-11-02 11:26:03,269 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##109: assume false; [2024-11-02 11:26:03,269 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##110: assume !false;call ULTIMATE.dealloc(fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset);havoc fst_ioctl_~#wrthdr~0#1.base, fst_ioctl_~#wrthdr~0#1.offset;call ULTIMATE.dealloc(fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset);havoc fst_ioctl_~#info~0#1.base, fst_ioctl_~#info~0#1.offset; [2024-11-02 11:26:03,834 INFO L? ?]: Removed 1230 outVars from TransFormulas that were not future-live. [2024-11-02 11:26:03,834 INFO L287 CfgBuilder]: Performing block encoding [2024-11-02 11:26:05,120 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-02 11:26:05,120 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-02 11:26:05,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:05 BoogieIcfgContainer [2024-11-02 11:26:05,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-02 11:26:05,123 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-02 11:26:05,123 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-02 11:26:05,126 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-02 11:26:05,127 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.11 11:25:49" (1/3) ... [2024-11-02 11:26:05,127 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bded6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:05, skipping insertion in model container [2024-11-02 11:26:05,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.11 11:25:52" (2/3) ... [2024-11-02 11:26:05,128 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28bded6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.11 11:26:05, skipping insertion in model container [2024-11-02 11:26:05,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.11 11:26:05" (3/3) ... [2024-11-02 11:26:05,129 INFO L112 eAbstractionObserver]: Analyzing ICFG module_get_put-drivers-net-wan-farsync.ko.cil.out.i [2024-11-02 11:26:05,151 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-02 11:26:05,152 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-02 11:26:05,271 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-02 11:26:05,281 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;@410bb8a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-02 11:26:05,281 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-02 11:26:05,291 INFO L276 IsEmpty]: Start isEmpty. Operand has 878 states, 535 states have (on average 1.2934579439252336) internal successors, (692), 542 states have internal predecessors, (692), 284 states have call successors, (284), 57 states have call predecessors, (284), 57 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) [2024-11-02 11:26:05,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-02 11:26:05,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:05,300 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:05,301 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:26:05,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:05,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1964973830, now seen corresponding path program 1 times [2024-11-02 11:26:05,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:05,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766278140] [2024-11-02 11:26:05,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:05,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-02 11:26:09,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-02 11:26:09,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-02 11:26:09,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766278140] [2024-11-02 11:26:09,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1766278140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-02 11:26:09,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-02 11:26:09,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-02 11:26:09,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944633033] [2024-11-02 11:26:09,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-02 11:26:09,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-02 11:26:09,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-02 11:26:09,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-02 11:26:09,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:09,565 INFO L87 Difference]: Start difference. First operand has 878 states, 535 states have (on average 1.2934579439252336) internal successors, (692), 542 states have internal predecessors, (692), 284 states have call successors, (284), 57 states have call predecessors, (284), 57 states have return successors, (284), 284 states have call predecessors, (284), 284 states have call successors, (284) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-02 11:26:11,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-02 11:26:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-02 11:26:14,735 INFO L93 Difference]: Finished difference Result 1754 states and 2521 transitions. [2024-11-02 11:26:14,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-02 11:26:14,740 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-02 11:26:14,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-02 11:26:14,762 INFO L225 Difference]: With dead ends: 1754 [2024-11-02 11:26:14,762 INFO L226 Difference]: Without dead ends: 876 [2024-11-02 11:26:14,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-02 11:26:14,781 INFO L432 NwaCegarLoop]: 1113 mSDtfsCounter, 0 mSDsluCounter, 1112 mSDsCounter, 0 mSdLazyCounter, 287 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2225 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 287 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-02 11:26:14,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2225 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 287 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-11-02 11:26:14,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 876 states. [2024-11-02 11:26:14,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 876 to 876. [2024-11-02 11:26:14,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 535 states have (on average 1.2897196261682242) internal successors, (690), 540 states have internal predecessors, (690), 284 states have call successors, (284), 57 states have call predecessors, (284), 56 states have return successors, (282), 282 states have call predecessors, (282), 282 states have call successors, (282) [2024-11-02 11:26:14,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1256 transitions. [2024-11-02 11:26:14,943 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1256 transitions. Word has length 15 [2024-11-02 11:26:14,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-02 11:26:14,944 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1256 transitions. [2024-11-02 11:26:14,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-02 11:26:14,946 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1256 transitions. [2024-11-02 11:26:14,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-02 11:26:14,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-02 11:26:14,948 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-02 11:26:14,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-02 11:26:14,949 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-02 11:26:14,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-02 11:26:14,949 INFO L85 PathProgramCache]: Analyzing trace with hash -331240556, now seen corresponding path program 1 times [2024-11-02 11:26:14,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-02 11:26:14,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650049305] [2024-11-02 11:26:14,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-02 11:26:14,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-02 11:26:17,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat