./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff 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_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ --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 81d1008401e9b638c804223ae1edaed37e73b80d2f51872c4d92327d9c04897f --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:11:39,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:11:39,515 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:11:39,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:11:39,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:11:39,566 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:11:39,567 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:11:39,567 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:11:39,568 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:11:39,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:11:39,574 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:11:39,576 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:11:39,576 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:11:39,578 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:11:39,578 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:11:39,579 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:11:39,579 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:11:39,580 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:11:39,580 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:11:39,581 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:11:39,581 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:11:39,582 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:11:39,583 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:11:39,584 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:11:39,584 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:11:39,584 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:11:39,607 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:11:39,607 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:11:39,608 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:11:39,608 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:11:39,609 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:11:39,610 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:11:39,610 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:11:39,610 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:39,611 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:11:39,611 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:11:39,611 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:11:39,612 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:11:39,612 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:11:39,612 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:11:39,612 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:11:39,613 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:11:39,613 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_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 81d1008401e9b638c804223ae1edaed37e73b80d2f51872c4d92327d9c04897f [2023-11-19 05:11:39,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:11:39,995 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:11:39,997 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:11:39,999 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:11:39,999 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:11:40,000 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-19 05:11:42,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:11:43,611 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:11:43,613 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-19 05:11:43,693 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/data/c8f748b1d/ed1089da75624bfc8b2d7ce506eb4c8f/FLAGfab3c97ad [2023-11-19 05:11:43,707 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/data/c8f748b1d/ed1089da75624bfc8b2d7ce506eb4c8f [2023-11-19 05:11:43,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:11:43,711 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:11:43,713 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:43,713 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:11:43,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:11:43,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:43" (1/1) ... [2023-11-19 05:11:43,721 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6514de7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:43, skipping insertion in model container [2023-11-19 05:11:43,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:11:43" (1/1) ... [2023-11-19 05:11:43,918 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:11:46,525 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_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281155,281168] [2023-11-19 05:11:46,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:46,603 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:11:46,689 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"); [3818] [2023-11-19 05:11:46,691 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)); [3825] [2023-11-19 05:11:46,692 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3833-3834] [2023-11-19 05:11:46,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3848-3849] [2023-11-19 05:11:46,698 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsfl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3857] [2023-11-19 05:11:46,703 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; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3957-3958] [2023-11-19 05:11:46,705 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; xaddb %b0, %1\n": "+q" (__ret), "+m" (v->counter): : "memory", "cc"); [3969-3970] [2023-11-19 05:11:46,706 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; xaddw %w0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3973-3974] [2023-11-19 05:11:46,707 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; xaddl %0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3977-3978] [2023-11-19 05:11:46,708 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; xaddq %q0, %1\n": "+r" (__ret), "+m" (v->counter): : "memory", "cc"); [3981-3982] [2023-11-19 05:11:46,722 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4082] [2023-11-19 05:11:46,723 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4089] [2023-11-19 05:11:46,797 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (398), "i" (12UL)); [4731-4732] [2023-11-19 05:11:46,815 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (626), "i" (12UL)); [5016-5017] [2023-11-19 05:11:46,830 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (824), "i" (12UL)); [5313-5314] [2023-11-19 05:11:46,832 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5334] [2023-11-19 05:11:46,845 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [5553] [2023-11-19 05:11:46,847 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5604] [2023-11-19 05:11:46,874 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6038] [2023-11-19 05:11:46,880 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6096] [2023-11-19 05:11:46,883 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6111] [2023-11-19 05:11:46,896 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (1711), "i" (12UL)); [6238-6239] [2023-11-19 05:11:46,898 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (1714), "i" (12UL)); [6245-6246] [2023-11-19 05:11:46,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6256] [2023-11-19 05:11:46,963 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6277] [2023-11-19 05:11:47,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6567] [2023-11-19 05:11:47,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6658] [2023-11-19 05:11:47,057 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/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--08_1a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9075/dscv_tempdir/dscv/ri/08_1a/drivers/usb/host/oxu210hp-hcd.c"), "i" (2227), "i" (12UL)); [6876-6877] [2023-11-19 05:11:47,205 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_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281155,281168] [2023-11-19 05:11:47,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:11:47,299 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:11:47,299 WARN L675 CHandler]: The function __bad_unaligned_access_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:11:47,307 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:11:47,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47 WrapperNode [2023-11-19 05:11:47,309 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:11:47,310 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:47,310 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:11:47,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:11:47,319 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:47,470 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:47,792 INFO L138 Inliner]: procedures = 268, calls = 3045, calls flagged for inlining = 107, calls inlined = 104, statements flattened = 8209 [2023-11-19 05:11:47,793 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:11:47,794 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:11:47,794 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:11:47,794 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:11:47,806 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:47,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:47,881 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:47,881 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:48,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:48,224 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:48,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:48,287 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:48,342 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:11:48,343 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:11:48,343 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:11:48,344 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:11:48,346 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (1/1) ... [2023-11-19 05:11:48,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:11:48,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:11:48,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:11:48,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c2966ee3-75d7-4c3e-923a-dccdbd96ddad/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:11:48,417 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2023-11-19 05:11:48,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2023-11-19 05:11:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2023-11-19 05:11:48,418 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2023-11-19 05:11:48,418 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2023-11-19 05:11:48,418 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2023-11-19 05:11:48,419 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 05:11:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 05:11:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 05:11:48,420 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 05:11:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:11:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:11:48,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:11:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:11:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure scan_periodic [2023-11-19 05:11:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_periodic [2023-11-19 05:11:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 05:11:48,421 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 05:11:48,421 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-19 05:11:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-19 05:11:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:11:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:11:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_create [2023-11-19 05:11:48,422 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_create [2023-11-19 05:11:48,422 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_readl [2023-11-19 05:11:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_readl [2023-11-19 05:11:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_run [2023-11-19 05:11:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_run [2023-11-19 05:11:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:11:48,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:11:48,423 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2023-11-19 05:11:48,424 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2023-11-19 05:11:48,424 INFO L130 BoogieDeclarations]: Found specification of procedure qh_put [2023-11-19 05:11:48,425 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_put [2023-11-19 05:11:48,425 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_irq [2023-11-19 05:11:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_irq [2023-11-19 05:11:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:11:48,426 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:11:48,426 INFO L130 BoogieDeclarations]: Found specification of procedure scan_async [2023-11-19 05:11:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_async [2023-11-19 05:11:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-19 05:11:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-19 05:11:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:11:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:11:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2023-11-19 05:11:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2023-11-19 05:11:48,427 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_endpoint_disable [2023-11-19 05:11:48,427 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_endpoint_disable [2023-11-19 05:11:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2023-11-19 05:11:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2023-11-19 05:11:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:11:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:11:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 05:11:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 05:11:48,428 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-19 05:11:48,428 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-19 05:11:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qtd_free [2023-11-19 05:11:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qtd_free [2023-11-19 05:11:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:11:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 05:11:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 05:11:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2023-11-19 05:11:48,429 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2023-11-19 05:11:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:11:48,429 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2023-11-19 05:11:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2023-11-19 05:11:48,430 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 05:11:48,430 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 05:11:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 05:11:48,430 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_writel [2023-11-19 05:11:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_writel [2023-11-19 05:11:48,430 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:11:48,430 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:11:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_shutdown [2023-11-19 05:11:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_shutdown [2023-11-19 05:11:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-19 05:11:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-19 05:11:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_alloc [2023-11-19 05:11:48,431 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_alloc [2023-11-19 05:11:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:11:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:11:48,431 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2023-11-19 05:11:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2023-11-19 05:11:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_enqueue [2023-11-19 05:11:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_enqueue [2023-11-19 05:11:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2023-11-19 05:11:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2023-11-19 05:11:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_usecs [2023-11-19 05:11:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_usecs [2023-11-19 05:11:48,432 INFO L130 BoogieDeclarations]: Found specification of procedure intr_deschedule [2023-11-19 05:11:48,432 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_deschedule [2023-11-19 05:11:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:11:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:11:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_buf_alloc [2023-11-19 05:11:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_buf_alloc [2023-11-19 05:11:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 05:11:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 05:11:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 05:11:48,433 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 05:11:48,433 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_control [2023-11-19 05:11:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_control [2023-11-19 05:11:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2023-11-19 05:11:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2023-11-19 05:11:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2023-11-19 05:11:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 05:11:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 05:11:48,434 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2023-11-19 05:11:48,434 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2023-11-19 05:11:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-19 05:11:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-19 05:11:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:11:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_probe [2023-11-19 05:11:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_probe [2023-11-19 05:11:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 05:11:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 05:11:48,435 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action [2023-11-19 05:11:48,435 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action [2023-11-19 05:11:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 05:11:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 05:11:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:11:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_get_frame [2023-11-19 05:11:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_get_frame [2023-11-19 05:11:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 05:11:48,436 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 05:11:48,436 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_stop [2023-11-19 05:11:48,442 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_stop [2023-11-19 05:11:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-19 05:11:48,443 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-19 05:11:48,443 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:11:48,448 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 05:11:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 05:11:48,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:11:48,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:11:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2023-11-19 05:11:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2023-11-19 05:11:48,450 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2023-11-19 05:11:48,450 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2023-11-19 05:11:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure __oxu_urb_enqueue [2023-11-19 05:11:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __oxu_urb_enqueue [2023-11-19 05:11:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_remove [2023-11-19 05:11:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_remove [2023-11-19 05:11:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-19 05:11:48,451 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-19 05:11:48,451 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:11:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:11:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 05:11:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 05:11:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:11:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 05:11:48,452 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 05:11:48,452 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 05:11:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 05:11:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:11:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:11:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 05:11:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 05:11:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2023-11-19 05:11:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2023-11-19 05:11:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure qh_unlink_periodic [2023-11-19 05:11:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_unlink_periodic [2023-11-19 05:11:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 05:11:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 05:11:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-19 05:11:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-19 05:11:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:11:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-19 05:11:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-19 05:11:48,455 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_async [2023-11-19 05:11:48,455 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_async [2023-11-19 05:11:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2023-11-19 05:11:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2023-11-19 05:11:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_to_hcd [2023-11-19 05:11:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_to_hcd [2023-11-19 05:11:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 05:11:48,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 05:11:48,456 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-19 05:11:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-19 05:11:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:11:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qh_alloc [2023-11-19 05:11:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qh_alloc [2023-11-19 05:11:48,457 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_suspend [2023-11-19 05:11:48,457 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_suspend [2023-11-19 05:11:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2023-11-19 05:11:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2023-11-19 05:11:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-19 05:11:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-19 05:11:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 05:11:48,458 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 05:11:48,458 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2023-11-19 05:11:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2023-11-19 05:11:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:11:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_status_data [2023-11-19 05:11:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_status_data [2023-11-19 05:11:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_shutdown [2023-11-19 05:11:48,459 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_shutdown [2023-11-19 05:11:48,459 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2023-11-19 05:11:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2023-11-19 05:11:48,460 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:11:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:11:48,460 INFO L130 BoogieDeclarations]: Found specification of procedure qh_get [2023-11-19 05:11:48,460 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_get [2023-11-19 05:11:48,460 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 05:11:48,461 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 05:11:48,461 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2023-11-19 05:11:48,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2023-11-19 05:11:48,461 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2023-11-19 05:11:48,461 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2023-11-19 05:11:48,461 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action_done [2023-11-19 05:11:48,461 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action_done [2023-11-19 05:11:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 05:11:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 05:11:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 05:11:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 05:11:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2023-11-19 05:11:48,462 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2023-11-19 05:11:48,462 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2023-11-19 05:11:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2023-11-19 05:11:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_free [2023-11-19 05:11:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_free [2023-11-19 05:11:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2023-11-19 05:11:48,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2023-11-19 05:11:48,463 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-19 05:11:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-19 05:11:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2023-11-19 05:11:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2023-11-19 05:11:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 05:11:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 05:11:48,464 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2023-11-19 05:11:48,464 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2023-11-19 05:11:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 05:11:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 05:11:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2023-11-19 05:11:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2023-11-19 05:11:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 05:11:48,465 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 05:11:48,465 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_resume [2023-11-19 05:11:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_resume [2023-11-19 05:11:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_dequeue [2023-11-19 05:11:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_dequeue [2023-11-19 05:11:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 05:11:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 05:11:48,466 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 05:11:48,466 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 05:11:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 05:11:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 05:11:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 05:11:48,467 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 05:11:48,467 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2023-11-19 05:11:48,470 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2023-11-19 05:11:48,471 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_remove [2023-11-19 05:11:48,471 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_remove [2023-11-19 05:11:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:11:48,472 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2023-11-19 05:11:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2023-11-19 05:11:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_oxu [2023-11-19 05:11:48,473 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_oxu [2023-11-19 05:11:48,473 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_reset [2023-11-19 05:11:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_reset [2023-11-19 05:11:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:11:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:11:48,477 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:11:48,477 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:11:49,392 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:11:49,397 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:11:50,210 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:12:00,603 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:12:07,188 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:12:07,188 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:12:07,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:07 BoogieIcfgContainer [2023-11-19 05:12:07,213 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:12:07,215 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:12:07,215 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:12:07,219 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:12:07,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:11:43" (1/3) ... [2023-11-19 05:12:07,220 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740e1387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:07, skipping insertion in model container [2023-11-19 05:12:07,220 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:11:47" (2/3) ... [2023-11-19 05:12:07,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740e1387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:12:07, skipping insertion in model container [2023-11-19 05:12:07,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:12:07" (3/3) ... [2023-11-19 05:12:07,222 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-19 05:12:07,246 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:12:07,246 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:12:07,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:12:07,370 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=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;@187a2dc2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:12:07,371 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:12:07,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 2339 states, 1451 states have (on average 1.3425223983459682) internal successors, (1948), 1517 states have internal predecessors, (1948), 765 states have call successors, (765), 122 states have call predecessors, (765), 121 states have return successors, (759), 749 states have call predecessors, (759), 759 states have call successors, (759) [2023-11-19 05:12:07,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-11-19 05:12:07,412 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:07,413 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:07,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:07,419 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:07,419 INFO L85 PathProgramCache]: Analyzing trace with hash -224315214, now seen corresponding path program 1 times [2023-11-19 05:12:07,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:07,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490826132] [2023-11-19 05:12:07,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:07,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2023-11-19 05:12:08,824 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:08,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490826132] [2023-11-19 05:12:08,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490826132] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:08,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:08,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:08,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349780600] [2023-11-19 05:12:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:08,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:08,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:08,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:08,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:09,019 INFO L87 Difference]: Start difference. First operand has 2339 states, 1451 states have (on average 1.3425223983459682) internal successors, (1948), 1517 states have internal predecessors, (1948), 765 states have call successors, (765), 122 states have call predecessors, (765), 121 states have return successors, (759), 749 states have call predecessors, (759), 759 states have call successors, (759) Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 05:12:11,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:15,656 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:19,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:21,349 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:21,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:21,745 INFO L93 Difference]: Finished difference Result 6915 states and 10273 transitions. [2023-11-19 05:12:21,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:21,749 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) Word has length 192 [2023-11-19 05:12:21,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:21,820 INFO L225 Difference]: With dead ends: 6915 [2023-11-19 05:12:21,821 INFO L226 Difference]: Without dead ends: 4575 [2023-11-19 05:12:21,847 INFO L412 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 [2023-11-19 05:12:21,851 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 3382 mSDsluCounter, 3117 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3382 SdHoareTripleChecker+Valid, 6249 SdHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:21,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3382 Valid, 6249 Invalid, 701 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 694 Invalid, 4 Unknown, 0 Unchecked, 12.2s Time] [2023-11-19 05:12:21,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4575 states. [2023-11-19 05:12:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4575 to 4575. [2023-11-19 05:12:22,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4575 states, 2848 states have (on average 1.3370786516853932) internal successors, (3808), 2964 states have internal predecessors, (3808), 1487 states have call successors, (1487), 240 states have call predecessors, (1487), 239 states have return successors, (1486), 1466 states have call predecessors, (1486), 1486 states have call successors, (1486) [2023-11-19 05:12:22,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 6781 transitions. [2023-11-19 05:12:22,315 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 6781 transitions. Word has length 192 [2023-11-19 05:12:22,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:22,321 INFO L495 AbstractCegarLoop]: Abstraction has 4575 states and 6781 transitions. [2023-11-19 05:12:22,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (21), 1 states have call predecessors, (21), 1 states have call successors, (21) [2023-11-19 05:12:22,322 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 6781 transitions. [2023-11-19 05:12:22,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-19 05:12:22,344 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:12:22,344 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 05:12:22,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 05:12:22,345 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:12:22,345 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:12:22,346 INFO L85 PathProgramCache]: Analyzing trace with hash 2076465190, now seen corresponding path program 1 times [2023-11-19 05:12:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:12:22,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276107608] [2023-11-19 05:12:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:12:22,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:12:22,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:12:22,957 INFO L134 CoverageAnalysis]: Checked inductivity of 672 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2023-11-19 05:12:22,958 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:12:22,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276107608] [2023-11-19 05:12:22,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276107608] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:12:22,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:12:22,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 05:12:22,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184888564] [2023-11-19 05:12:22,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:12:22,965 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 05:12:22,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:12:22,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 05:12:22,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 05:12:22,968 INFO L87 Difference]: Start difference. First operand 4575 states and 6781 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 05:12:25,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:28,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.93s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:12:29,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 05:12:29,208 INFO L93 Difference]: Finished difference Result 4575 states and 6781 transitions. [2023-11-19 05:12:29,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 05:12:29,209 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 207 [2023-11-19 05:12:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 05:12:29,211 INFO L225 Difference]: With dead ends: 4575 [2023-11-19 05:12:29,211 INFO L226 Difference]: Without dead ends: 0 [2023-11-19 05:12:29,245 INFO L412 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 [2023-11-19 05:12:29,247 INFO L413 NwaCegarLoop]: 3086 mSDtfsCounter, 3379 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3379 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-11-19 05:12:29,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3379 Valid, 3086 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 342 Invalid, 1 Unknown, 0 Unchecked, 6.0s Time] [2023-11-19 05:12:29,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-19 05:12:29,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-19 05:12:29,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-19 05:12:29,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-19 05:12:29,251 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 207 [2023-11-19 05:12:29,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 05:12:29,251 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-19 05:12:29,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-11-19 05:12:29,252 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-19 05:12:29,252 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 05:12:29,255 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-19 05:12:29,257 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 05:12:29,259 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.