./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e7bb482b 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_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 213c19133f8e1eb8e04c1430c89bd3923e29e833639b74dc68815899bbf3f9fa --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 23:07:25,497 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 23:07:25,563 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-06 23:07:25,568 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 23:07:25,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 23:07:25,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 23:07:25,593 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 23:07:25,594 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 23:07:25,595 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-06 23:07:25,595 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-06 23:07:25,596 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 23:07:25,597 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 23:07:25,597 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 23:07:25,598 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 23:07:25,598 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-06 23:07:25,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 23:07:25,600 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 23:07:25,600 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-06 23:07:25,601 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-06 23:07:25,601 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-06 23:07:25,602 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 23:07:25,603 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 23:07:25,603 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 23:07:25,604 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 23:07:25,604 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-06 23:07:25,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:25,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 23:07:25,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-06 23:07:25,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-11-06 23:07:25,607 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 23:07:25,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-06 23:07:25,620 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-06 23:07:25,621 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-06 23:07:25,622 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-06 23:07:25,622 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-06 23:07:25,623 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-06 23:07:25,623 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213c19133f8e1eb8e04c1430c89bd3923e29e833639b74dc68815899bbf3f9fa [2023-11-06 23:07:25,915 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 23:07:25,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 23:07:25,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 23:07:25,946 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 23:07:25,947 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 23:07:25,948 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2023-11-06 23:07:29,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 23:07:30,058 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 23:07:30,059 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2023-11-06 23:07:30,147 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/data/dd1d6b1e7/7587387adad54b71b218e057acefcde2/FLAG817a7d965 [2023-11-06 23:07:30,166 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/data/dd1d6b1e7/7587387adad54b71b218e057acefcde2 [2023-11-06 23:07:30,173 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 23:07:30,176 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 23:07:30,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:30,179 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 23:07:30,185 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 23:07:30,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:30" (1/1) ... [2023-11-06 23:07:30,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@275837d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:30, skipping insertion in model container [2023-11-06 23:07:30,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:07:30" (1/1) ... [2023-11-06 23:07:30,483 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 23:07:34,829 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i[553894,553907] [2023-11-06 23:07:35,072 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:35,249 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 23:07:35,479 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"); [5931] [2023-11-06 23:07:35,525 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 *)"/work/ldvuser/exper_fp/work/current--X--drivers--X--defaultlinux-3.10-rc1.tar--X--32_7a--X--cpachecker/linux-3.10-rc1.tar/csd_deg_dscv/2685/dscv_tempdir/dscv/ri/32_7a/drivers/media/usb/em28xx/em28xx-video.c.prepared"), "i" (613), "i" (12UL)); [6699-6700] [2023-11-06 23:07:35,960 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 *)"/work/ldvuser/exper_fp/work/current--X--drivers--X--defaultlinux-3.10-rc1.tar--X--32_7a--X--cpachecker/linux-3.10-rc1.tar/csd_deg_dscv/2685/dscv_tempdir/dscv/ri/32_7a/drivers/media/usb/em28xx/em28xx-i2c.c.prepared"), "i" (122), "i" (12UL)); [9402-9403] [2023-11-06 23:07:36,100 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 *)"/work/ldvuser/exper_fp/work/current--X--drivers--X--defaultlinux-3.10-rc1.tar--X--32_7a--X--cpachecker/linux-3.10-rc1.tar/csd_deg_dscv/2685/dscv_tempdir/dscv/ri/32_7a/drivers/media/usb/em28xx/em28xx-i2c.c.prepared"), "i" (940), "i" (12UL)); [10383-10384] [2023-11-06 23:07:36,101 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 *)"/work/ldvuser/exper_fp/work/current--X--drivers--X--defaultlinux-3.10-rc1.tar--X--32_7a--X--cpachecker/linux-3.10-rc1.tar/csd_deg_dscv/2685/dscv_tempdir/dscv/ri/32_7a/drivers/media/usb/em28xx/em28xx-i2c.c.prepared"), "i" (941), "i" (12UL)); [10405-10406] [2023-11-06 23:07:36,230 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)); [10556] [2023-11-06 23:07:36,230 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [10564-10565] [2023-11-06 23:07:36,370 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 *)"/work/ldvuser/exper_fp/inst/current/envs/linux-3.10-rc1.tar/linux-3.10-rc1/arch/x86/include/asm/paravirt.h"), "i" (824), "i" (12UL)); [13360-13361] [2023-11-06 23:07:36,371 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" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [13366-13368] [2023-11-06 23:07:36,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [13411] [2023-11-06 23:07:36,372 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [13414] [2023-11-06 23:07:36,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [13417] [2023-11-06 23:07:36,373 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [13420] [2023-11-06 23:07:36,520 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i[553894,553907] [2023-11-06 23:07:36,534 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 23:07:36,815 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-06 23:07:36,823 INFO L206 MainTranslator]: Completed translation [2023-11-06 23:07:36,824 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36 WrapperNode [2023-11-06 23:07:36,824 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 23:07:36,825 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:36,825 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 23:07:36,826 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 23:07:36,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:37,239 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:37,593 INFO L138 Inliner]: procedures = 457, calls = 15696, calls flagged for inlining = 155, calls inlined = 76, statements flattened = 13328 [2023-11-06 23:07:37,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 23:07:37,595 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 23:07:37,595 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 23:07:37,595 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 23:07:37,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:37,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:37,688 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:37,688 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:38,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:38,368 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:38,421 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:38,470 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:38,545 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 23:07:38,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 23:07:38,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 23:07:38,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 23:07:38,548 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (1/1) ... [2023-11-06 23:07:38,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-06 23:07:38,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 23:07:38,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-06 23:07:38,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_faec26d0-9b47-4569-81f4-f0c575b2f6f3/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-06 23:07:38,619 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-06 23:07:38,619 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-06 23:07:38,620 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs [2023-11-06 23:07:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs [2023-11-06 23:07:38,620 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_area_set [2023-11-06 23:07:38,620 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_area_set [2023-11-06 23:07:38,620 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_alloc_urbs [2023-11-06 23:07:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_alloc_urbs [2023-11-06 23:07:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_dev [2023-11-06 23:07:38,621 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_dev [2023-11-06 23:07:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_mmap [2023-11-06 23:07:38,621 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-06 23:07:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-06 23:07:38,622 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_stop_streaming [2023-11-06 23:07:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_stop_streaming [2023-11-06 23:07:38,622 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_device_unregister [2023-11-06 23:07:38,622 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_device_unregister [2023-11-06 23:07:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2023-11-06 23:07:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2023-11-06 23:07:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-06 23:07:38,623 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-06 23:07:38,623 INFO L130 BoogieDeclarations]: Found specification of procedure res_free [2023-11-06 23:07:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure res_free [2023-11-06 23:07:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-06 23:07:38,624 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-06 23:07:38,624 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_ac97 [2023-11-06 23:07:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_ac97 [2023-11-06 23:07:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_em28xx [2023-11-06 23:07:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_em28xx [2023-11-06 23:07:38,625 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_handler_free [2023-11-06 23:07:38,625 INFO L138 BoogieDeclarations]: Found implementation of procedure v4l2_ctrl_handler_free [2023-11-06 23:07:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-11-06 23:07:38,626 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-11-06 23:07:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure arch_irqs_disabled_flags [2023-11-06 23:07:38,626 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_irqs_disabled_flags [2023-11-06 23:07:38,626 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_frequency [2023-11-06 23:07:38,626 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_frequency [2023-11-06 23:07:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-06 23:07:38,627 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-06 23:07:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_register [2023-11-06 23:07:38,627 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_register [2023-11-06 23:07:38,627 INFO L130 BoogieDeclarations]: Found specification of procedure video_devdata [2023-11-06 23:07:38,628 INFO L138 BoogieDeclarations]: Found implementation of procedure video_devdata [2023-11-06 23:07:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 23:07:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_vbi_supported [2023-11-06 23:07:38,628 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_vbi_supported [2023-11-06 23:07:38,628 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-06 23:07:38,628 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-06 23:07:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-06 23:07:38,629 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-06 23:07:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_copy_video [2023-11-06 23:07:38,629 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_copy_video [2023-11-06 23:07:38,629 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_gpio_set [2023-11-06 23:07:38,630 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_gpio_set [2023-11-06 23:07:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_chip_ident [2023-11-06 23:07:38,630 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_chip_ident [2023-11-06 23:07:38,630 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2023-11-06 23:07:38,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~v4l2_std_id~0~TO~int [2023-11-06 23:07:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_try_fmt_vid_cap [2023-11-06 23:07:38,631 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_try_fmt_vid_cap [2023-11-06 23:07:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg_req [2023-11-06 23:07:38,631 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg_req [2023-11-06 23:07:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-06 23:07:38,631 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_ctrl_urb_lock_of_em28xx [2023-11-06 23:07:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_ctrl_urb_lock_of_em28xx [2023-11-06 23:07:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-06 23:07:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-06 23:07:38,632 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_buffer_done [2023-11-06 23:07:38,632 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_buffer_done [2023-11-06 23:07:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-06 23:07:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2023-11-06 23:07:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_ctrl_urb_lock_of_em28xx [2023-11-06 23:07:38,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_ctrl_urb_lock_of_em28xx [2023-11-06 23:07:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-06 23:07:38,633 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2023-11-06 23:07:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~X~~u32~0~X~~u32~0~TO~int [2023-11-06 23:07:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_initialize [2023-11-06 23:07:38,634 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_initialize [2023-11-06 23:07:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-06 23:07:38,634 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_i2c_unregister [2023-11-06 23:07:38,635 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_i2c_unregister [2023-11-06 23:07:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-06 23:07:38,635 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-06 23:07:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-06 23:07:38,635 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-06 23:07:38,635 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg [2023-11-06 23:07:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg [2023-11-06 23:07:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-06 23:07:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-06 23:07:38,636 INFO L130 BoogieDeclarations]: Found specification of procedure video_is_registered [2023-11-06 23:07:38,636 INFO L138 BoogieDeclarations]: Found implementation of procedure video_is_registered [2023-11-06 23:07:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_ctrl_subscribe_event [2023-11-06 23:07:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure video_unregister_device [2023-11-06 23:07:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure video_unregister_device [2023-11-06 23:07:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 23:07:38,637 INFO L130 BoogieDeclarations]: Found specification of procedure video_mux [2023-11-06 23:07:38,637 INFO L138 BoogieDeclarations]: Found implementation of procedure video_mux [2023-11-06 23:07:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 23:07:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 23:07:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-06 23:07:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_audio_analog_set [2023-11-06 23:07:38,638 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_audio_analog_set [2023-11-06 23:07:38,638 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-06 23:07:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-06 23:07:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure usb_control_msg [2023-11-06 23:07:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_control_msg [2023-11-06 23:07:38,639 INFO L130 BoogieDeclarations]: Found specification of procedure buffer_prepare [2023-11-06 23:07:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure buffer_prepare [2023-11-06 23:07:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_start_analog_streaming [2023-11-06 23:07:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_start_analog_streaming [2023-11-06 23:07:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure format_by_fourcc [2023-11-06 23:07:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure format_by_fourcc [2023-11-06 23:07:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg [2023-11-06 23:07:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg [2023-11-06 23:07:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_reg_len [2023-11-06 23:07:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_reg_len [2023-11-06 23:07:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-11-06 23:07:38,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-11-06 23:07:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure v4l2_event_unsubscribe [2023-11-06 23:07:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure get_ressource [2023-11-06 23:07:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure get_ressource [2023-11-06 23:07:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_save_flags [2023-11-06 23:07:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_save_flags [2023-11-06 23:07:38,642 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_outfmt [2023-11-06 23:07:38,642 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_outfmt [2023-11-06 23:07:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 23:07:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 23:07:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-06 23:07:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-06 23:07:38,643 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-06 23:07:38,643 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-06 23:07:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_set_plane_payload [2023-11-06 23:07:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_set_plane_payload [2023-11-06 23:07:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_fop_poll [2023-11-06 23:07:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-06 23:07:38,644 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-06 23:07:38,644 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-06 23:07:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-06 23:07:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_interface [2023-11-06 23:07:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_interface [2023-11-06 23:07:38,645 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_close [2023-11-06 23:07:38,645 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_close [2023-11-06 23:07:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_reg_req_len [2023-11-06 23:07:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_reg_req_len [2023-11-06 23:07:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_release [2023-11-06 23:07:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_release [2023-11-06 23:07:38,646 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_reg_bits [2023-11-06 23:07:38,646 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_reg_bits [2023-11-06 23:07:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-06 23:07:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-06 23:07:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-06 23:07:38,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-06 23:07:38,647 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-06 23:07:38,648 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u32~0~TO~int [2023-11-06 23:07:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_s_ctrl [2023-11-06 23:07:38,648 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_s_ctrl [2023-11-06 23:07:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 23:07:38,648 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 23:07:38,648 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_frequency [2023-11-06 23:07:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_frequency [2023-11-06 23:07:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure vbi_buffer_prepare [2023-11-06 23:07:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure vbi_buffer_prepare [2023-11-06 23:07:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_release_resources [2023-11-06 23:07:38,649 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_release_resources [2023-11-06 23:07:38,649 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-06 23:07:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-06 23:07:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure video_drvdata [2023-11-06 23:07:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure video_drvdata [2023-11-06 23:07:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_em28xx [2023-11-06 23:07:38,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_em28xx [2023-11-06 23:07:38,650 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_write_regs_req [2023-11-06 23:07:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_write_regs_req [2023-11-06 23:07:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-06 23:07:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unlink_urb [2023-11-06 23:07:38,651 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unlink_urb [2023-11-06 23:07:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 23:07:38,651 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_g_chip_info [2023-11-06 23:07:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_g_chip_info [2023-11-06 23:07:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_video_format [2023-11-06 23:07:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_video_format [2023-11-06 23:07:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 23:07:38,652 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_set_mode [2023-11-06 23:07:38,652 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_set_mode [2023-11-06 23:07:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-06 23:07:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-06 23:07:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure video_device_node_name [2023-11-06 23:07:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure video_device_node_name [2023-11-06 23:07:38,653 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-06 23:07:38,653 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-06 23:07:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-06 23:07:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-06 23:07:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_resolution_set [2023-11-06 23:07:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_resolution_set [2023-11-06 23:07:38,654 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2023-11-06 23:07:38,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2023-11-06 23:07:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_is_ac97_ready [2023-11-06 23:07:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_is_ac97_ready [2023-11-06 23:07:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-06 23:07:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-06 23:07:38,655 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_querycap [2023-11-06 23:07:38,655 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_querycap [2023-11-06 23:07:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_v4l2_open [2023-11-06 23:07:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_v4l2_open [2023-11-06 23:07:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_size [2023-11-06 23:07:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_size [2023-11-06 23:07:38,656 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-06 23:07:38,656 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-06 23:07:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~X~$Pointer$~X~int~TO~int [2023-11-06 23:07:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u16~0~X~$Pointer$~X~int~TO~int [2023-11-06 23:07:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-06 23:07:38,657 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-06 23:07:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 23:07:38,657 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-06 23:07:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-06 23:07:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_uninit_usb_xfer [2023-11-06 23:07:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_uninit_usb_xfer [2023-11-06 23:07:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure finish_field_prepare_next [2023-11-06 23:07:38,658 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_field_prepare_next [2023-11-06 23:07:38,658 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_read_ac97 [2023-11-06 23:07:38,659 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_read_ac97 [2023-11-06 23:07:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_wake_i2c [2023-11-06 23:07:38,659 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_wake_i2c [2023-11-06 23:07:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure size_to_scale [2023-11-06 23:07:38,659 INFO L138 BoogieDeclarations]: Found implementation of procedure size_to_scale [2023-11-06 23:07:38,659 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_get_drv_priv [2023-11-06 23:07:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_get_drv_priv [2023-11-06 23:07:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure vidioc_s_register [2023-11-06 23:07:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure vidioc_s_register [2023-11-06 23:07:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure scale_to_size [2023-11-06 23:07:38,660 INFO L138 BoogieDeclarations]: Found implementation of procedure scale_to_size [2023-11-06 23:07:38,660 INFO L130 BoogieDeclarations]: Found specification of procedure print_err_status [2023-11-06 23:07:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure print_err_status [2023-11-06 23:07:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxw [2023-11-06 23:07:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxw [2023-11-06 23:07:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure norm_maxh [2023-11-06 23:07:38,661 INFO L138 BoogieDeclarations]: Found implementation of procedure norm_maxh [2023-11-06 23:07:38,661 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 23:07:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-06 23:07:38,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 23:07:38,662 INFO L130 BoogieDeclarations]: Found specification of procedure vb2_plane_vaddr [2023-11-06 23:07:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure vb2_plane_vaddr [2023-11-06 23:07:38,662 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-06 23:07:38,662 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-06 23:07:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure em28xx_capture_start [2023-11-06 23:07:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure em28xx_capture_start [2023-11-06 23:07:39,619 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 23:07:39,623 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 23:08:17,436 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 23:08:17,464 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 23:08:17,464 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 23:08:17,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:17 BoogieIcfgContainer [2023-11-06 23:08:17,470 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 23:08:17,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-06 23:08:17,475 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-06 23:08:17,478 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-06 23:08:17,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:07:30" (1/3) ... [2023-11-06 23:08:17,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1bc7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:17, skipping insertion in model container [2023-11-06 23:08:17,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:07:36" (2/3) ... [2023-11-06 23:08:17,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1bc7aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:08:17, skipping insertion in model container [2023-11-06 23:08:17,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:08:17" (3/3) ... [2023-11-06 23:08:17,484 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--media--usb--em28xx--em28xx.ko-ldv_main0.cil.out.i [2023-11-06 23:08:17,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-06 23:08:17,505 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-06 23:08:17,638 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-06 23:08:17,646 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@54d7733, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-06 23:08:17,646 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-06 23:08:17,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 2112 states, 1545 states have (on average 1.4) internal successors, (2163), 1570 states have internal predecessors, (2163), 453 states have call successors, (453), 112 states have call predecessors, (453), 112 states have return successors, (453), 452 states have call predecessors, (453), 453 states have call successors, (453) [2023-11-06 23:08:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-06 23:08:17,680 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:08:17,681 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:08:17,686 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:08:17,695 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:08:17,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1500130735, now seen corresponding path program 1 times [2023-11-06 23:08:17,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:08:17,712 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278244409] [2023-11-06 23:08:17,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:08:17,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:09:00,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:01,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 23:09:01,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:09:02,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:09:02,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:09:02,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278244409] [2023-11-06 23:09:02,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278244409] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:09:02,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:09:02,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:09:02,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557431758] [2023-11-06 23:09:02,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:09:02,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:09:02,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:09:02,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:09:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:09:02,079 INFO L87 Difference]: Start difference. First operand has 2112 states, 1545 states have (on average 1.4) internal successors, (2163), 1570 states have internal predecessors, (2163), 453 states have call successors, (453), 112 states have call predecessors, (453), 112 states have return successors, (453), 452 states have call predecessors, (453), 453 states have call successors, (453) Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:09:03,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:09:13,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:09:13,962 INFO L93 Difference]: Finished difference Result 4269 states and 6392 transitions. [2023-11-06 23:09:13,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:09:13,965 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2023-11-06 23:09:13,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:09:14,017 INFO L225 Difference]: With dead ends: 4269 [2023-11-06 23:09:14,018 INFO L226 Difference]: Without dead ends: 2155 [2023-11-06 23:09:14,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:09:14,049 INFO L413 NwaCegarLoop]: 667 mSDtfsCounter, 3974 mSDsluCounter, 413 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 1343 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4095 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 4065 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1343 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2023-11-06 23:09:14,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4095 Valid, 1080 Invalid, 4065 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1343 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2023-11-06 23:09:14,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2155 states. [2023-11-06 23:09:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2155 to 2111. [2023-11-06 23:09:14,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2111 states, 1546 states have (on average 1.386157826649418) internal successors, (2143), 1567 states have internal predecessors, (2143), 451 states have call successors, (451), 115 states have call predecessors, (451), 113 states have return successors, (440), 439 states have call predecessors, (440), 440 states have call successors, (440) [2023-11-06 23:09:14,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2111 states to 2111 states and 3034 transitions. [2023-11-06 23:09:14,450 INFO L78 Accepts]: Start accepts. Automaton has 2111 states and 3034 transitions. Word has length 12 [2023-11-06 23:09:14,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:09:14,451 INFO L495 AbstractCegarLoop]: Abstraction has 2111 states and 3034 transitions. [2023-11-06 23:09:14,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:09:14,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2111 states and 3034 transitions. [2023-11-06 23:09:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-06 23:09:14,454 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:09:14,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:09:14,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-06 23:09:14,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:09:14,456 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:09:14,456 INFO L85 PathProgramCache]: Analyzing trace with hash 738940760, now seen corresponding path program 1 times [2023-11-06 23:09:14,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:09:14,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361829495] [2023-11-06 23:09:14,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:09:14,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:10:01,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 23:10:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:10:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:10:03,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:10:03,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361829495] [2023-11-06 23:10:03,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [361829495] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:10:03,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:10:03,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:10:03,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31451510] [2023-11-06 23:10:03,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:10:03,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:10:03,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:10:03,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:10:03,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:10:03,095 INFO L87 Difference]: Start difference. First operand 2111 states and 3034 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:10:04,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:10:07,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.61s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-06 23:10:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 23:10:17,229 INFO L93 Difference]: Finished difference Result 2642 states and 3955 transitions. [2023-11-06 23:10:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-06 23:10:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2023-11-06 23:10:17,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-06 23:10:17,258 INFO L225 Difference]: With dead ends: 2642 [2023-11-06 23:10:17,259 INFO L226 Difference]: Without dead ends: 2639 [2023-11-06 23:10:17,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-06 23:10:17,263 INFO L413 NwaCegarLoop]: 939 mSDtfsCounter, 4477 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 3472 mSolverCounterSat, 1257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4695 SdHoareTripleChecker+Valid, 1323 SdHoareTripleChecker+Invalid, 4729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1257 IncrementalHoareTripleChecker+Valid, 3472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-11-06 23:10:17,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4695 Valid, 1323 Invalid, 4729 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1257 Valid, 3472 Invalid, 0 Unknown, 0 Unchecked, 13.5s Time] [2023-11-06 23:10:17,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2023-11-06 23:10:17,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2110. [2023-11-06 23:10:17,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2110 states, 1546 states have (on average 1.3855109961190168) internal successors, (2142), 1566 states have internal predecessors, (2142), 450 states have call successors, (450), 115 states have call predecessors, (450), 113 states have return successors, (440), 439 states have call predecessors, (440), 440 states have call successors, (440) [2023-11-06 23:10:17,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2110 states to 2110 states and 3032 transitions. [2023-11-06 23:10:17,537 INFO L78 Accepts]: Start accepts. Automaton has 2110 states and 3032 transitions. Word has length 13 [2023-11-06 23:10:17,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-06 23:10:17,538 INFO L495 AbstractCegarLoop]: Abstraction has 2110 states and 3032 transitions. [2023-11-06 23:10:17,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:10:17,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2110 states and 3032 transitions. [2023-11-06 23:10:17,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-06 23:10:17,539 INFO L187 NwaCegarLoop]: Found error trace [2023-11-06 23:10:17,539 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 23:10:17,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-06 23:10:17,539 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-06 23:10:17,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 23:10:17,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1430685236, now seen corresponding path program 1 times [2023-11-06 23:10:17,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 23:10:17,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793017444] [2023-11-06 23:10:17,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 23:10:17,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 23:11:06,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:08,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-06 23:11:08,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 23:11:08,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 23:11:08,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 23:11:08,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793017444] [2023-11-06 23:11:08,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793017444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 23:11:08,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 23:11:08,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-06 23:11:08,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262068009] [2023-11-06 23:11:08,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 23:11:08,107 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-06 23:11:08,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 23:11:08,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-06 23:11:08,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-06 23:11:08,109 INFO L87 Difference]: Start difference. First operand 2110 states and 3032 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 23:11:09,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []