./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/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_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/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_6f5a414f-93c4-499f-a5e3-4820031f06a3/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 2f349249e9e86997fa8ff3fec7fb7aa332cbfd0034f841eea19465e389dd90de --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:15:16,125 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:15:16,229 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:15:16,244 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:15:16,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:15:16,289 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:15:16,290 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:15:16,290 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:15:16,292 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:15:16,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:15:16,297 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:15:16,298 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:15:16,299 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:15:16,301 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:15:16,301 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:15:16,301 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:15:16,302 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:15:16,302 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:15:16,303 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:15:16,303 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:15:16,304 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:15:16,304 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:15:16,305 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:15:16,306 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:15:16,306 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:15:16,307 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:15:16,307 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:15:16,307 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:15:16,308 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:15:16,308 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:15:16,310 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:15:16,310 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:15:16,310 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:15:16,310 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:16,311 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:15:16,311 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:15:16,311 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:15:16,311 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:15:16,312 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:15:16,312 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:15:16,312 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:15:16,312 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:15:16,313 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_6f5a414f-93c4-499f-a5e3-4820031f06a3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f349249e9e86997fa8ff3fec7fb7aa332cbfd0034f841eea19465e389dd90de [2023-11-19 04:15:16,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:15:16,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:15:16,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:15:16,674 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:15:16,674 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:15:16,676 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-19 04:15:19,830 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:15:20,635 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:15:20,637 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-19 04:15:20,709 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/data/68f5bce40/804e1ac766d941769adb42ed4dc347a0/FLAGf528f9fb8 [2023-11-19 04:15:20,727 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/data/68f5bce40/804e1ac766d941769adb42ed4dc347a0 [2023-11-19 04:15:20,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:15:20,736 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:15:20,737 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:15:20,737 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:15:20,743 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:15:20,744 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:15:20" (1/1) ... [2023-11-19 04:15:20,745 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4594f3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:20, skipping insertion in model container [2023-11-19 04:15:20,745 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:15:20" (1/1) ... [2023-11-19 04:15:20,892 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:15:23,129 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_6f5a414f-93c4-499f-a5e3-4820031f06a3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281346,281359] [2023-11-19 04:15:23,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:15:23,206 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:15:23,306 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 04:15:23,308 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 04:15:23,308 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 04:15:23,310 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 04:15:23,310 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bsfl %1,%0": "=r" (r): "rm" (x), "0" (-1)); [3857] [2023-11-19 04:15:23,331 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"); [4054-4055] [2023-11-19 04:15:23,331 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"); [4066-4067] [2023-11-19 04:15:23,332 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"); [4070-4071] [2023-11-19 04:15:23,332 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"); [4074-4075] [2023-11-19 04:15:23,333 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"); [4078-4079] [2023-11-19 04:15:23,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [4183] [2023-11-19 04:15:23,336 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [4190] [2023-11-19 04:15:23,396 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9566/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/oxu210hp-hcd.c"), "i" (398), "i" (12UL)); [4715-4716] [2023-11-19 04:15:23,412 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9566/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/oxu210hp-hcd.c"), "i" (626), "i" (12UL)); [5000-5001] [2023-11-19 04:15:23,427 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9566/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/oxu210hp-hcd.c"), "i" (824), "i" (12UL)); [5297-5298] [2023-11-19 04:15:23,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5318] [2023-11-19 04:15:23,442 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [5537] [2023-11-19 04:15:23,446 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [5588] [2023-11-19 04:15:23,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6022] [2023-11-19 04:15:23,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6080] [2023-11-19 04:15:23,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6095] [2023-11-19 04:15:23,580 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9566/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/oxu210hp-hcd.c"), "i" (1711), "i" (12UL)); [6220-6221] [2023-11-19 04:15:23,584 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9566/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/oxu210hp-hcd.c"), "i" (1714), "i" (12UL)); [6227-6228] [2023-11-19 04:15:23,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6238] [2023-11-19 04:15:23,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6259] [2023-11-19 04:15:23,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6549] [2023-11-19 04:15:23,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6640] [2023-11-19 04:15:23,622 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 *)"/home/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/9566/dscv_tempdir/dscv/ri/43_2a/drivers/usb/host/oxu210hp-hcd.c"), "i" (2227), "i" (12UL)); [6856-6857] [2023-11-19 04:15:23,822 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_6f5a414f-93c4-499f-a5e3-4820031f06a3/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i[281346,281359] [2023-11-19 04:15:23,833 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:15:23,919 WARN L675 CHandler]: The function ldv_calloc is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:15:23,920 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:15:23,920 WARN L675 CHandler]: The function __bad_unaligned_access_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:15:23,928 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:15:23,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23 WrapperNode [2023-11-19 04:15:23,928 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:15:23,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:15:23,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:15:23,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:15:23,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,073 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,409 INFO L138 Inliner]: procedures = 272, calls = 3049, calls flagged for inlining = 111, calls inlined = 108, statements flattened = 8190 [2023-11-19 04:15:24,409 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:15:24,410 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:15:24,410 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:15:24,410 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:15:24,420 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,421 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,480 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,489 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,723 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,748 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,786 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,913 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:15:24,915 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:15:24,915 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:15:24,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:15:24,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (1/1) ... [2023-11-19 04:15:24,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:15:24,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:15:24,956 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:15:24,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f5a414f-93c4-499f-a5e3-4820031f06a3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:15:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_reset [2023-11-19 04:15:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_reset [2023-11-19 04:15:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure end_unlink_async [2023-11-19 04:15:25,002 INFO L138 BoogieDeclarations]: Found implementation of procedure end_unlink_async [2023-11-19 04:15:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_status_buf [2023-11-19 04:15:25,003 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_status_buf [2023-11-19 04:15:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2023-11-19 04:15:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2023-11-19 04:15:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 04:15:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 04:15:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:15:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:15:25,004 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:15:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:15:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure scan_periodic [2023-11-19 04:15:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_periodic [2023-11-19 04:15:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:15:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:15:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2023-11-19 04:15:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2023-11-19 04:15:25,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2023-11-19 04:15:25,005 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2023-11-19 04:15:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:15:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:15:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_create [2023-11-19 04:15:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_create [2023-11-19 04:15:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_readl [2023-11-19 04:15:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_readl [2023-11-19 04:15:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_run [2023-11-19 04:15:25,006 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_run [2023-11-19 04:15:25,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:15:25,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:15:25,007 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_next_shadow [2023-11-19 04:15:25,008 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_next_shadow [2023-11-19 04:15:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure qh_put [2023-11-19 04:15:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_put [2023-11-19 04:15:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_irq [2023-11-19 04:15:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_irq [2023-11-19 04:15:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:15:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:15:25,009 INFO L130 BoogieDeclarations]: Found specification of procedure scan_async [2023-11-19 04:15:25,009 INFO L138 BoogieDeclarations]: Found implementation of procedure scan_async [2023-11-19 04:15:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2023-11-19 04:15:25,010 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2023-11-19 04:15:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:15:25,010 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:15:25,010 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_halt [2023-11-19 04:15:25,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_halt [2023-11-19 04:15:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_endpoint_disable [2023-11-19 04:15:25,011 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_endpoint_disable [2023-11-19 04:15:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure usb_maxpacket [2023-11-19 04:15:25,011 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_maxpacket [2023-11-19 04:15:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:15:25,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:15:25,011 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-11-19 04:15:25,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-11-19 04:15:25,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2023-11-19 04:15:25,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2023-11-19 04:15:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qtd_free [2023-11-19 04:15:25,013 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qtd_free [2023-11-19 04:15:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:15:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:15:25,013 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:15:25,013 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_list_free [2023-11-19 04:15:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_list_free [2023-11-19 04:15:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:15:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure qtd_fill [2023-11-19 04:15:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure qtd_fill [2023-11-19 04:15:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 04:15:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2023-11-19 04:15:25,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2023-11-19 04:15:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:15:25,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:15:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_writel [2023-11-19 04:15:25,015 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_writel [2023-11-19 04:15:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:15:25,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:15:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_shutdown [2023-11-19 04:15:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_shutdown [2023-11-19 04:15:25,016 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_resource [2023-11-19 04:15:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_resource [2023-11-19 04:15:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_alloc [2023-11-19 04:15:25,017 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_alloc [2023-11-19 04:15:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:15:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:15:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure dbg_command_buf [2023-11-19 04:15:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure dbg_command_buf [2023-11-19 04:15:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_enqueue [2023-11-19 04:15:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_enqueue [2023-11-19 04:15:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure usb_hc_died [2023-11-19 04:15:25,019 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_hc_died [2023-11-19 04:15:25,019 INFO L130 BoogieDeclarations]: Found specification of procedure periodic_usecs [2023-11-19 04:15:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure periodic_usecs [2023-11-19 04:15:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure intr_deschedule [2023-11-19 04:15:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_deschedule [2023-11-19 04:15:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:15:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:15:25,020 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_buf_alloc [2023-11-19 04:15:25,020 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_buf_alloc [2023-11-19 04:15:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 04:15:25,021 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 04:15:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_control [2023-11-19 04:15:25,021 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_control [2023-11-19 04:15:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_unaligned_access_size [2023-11-19 04:15:25,021 INFO L130 BoogieDeclarations]: Found specification of procedure qh_completions [2023-11-19 04:15:25,022 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_completions [2023-11-19 04:15:25,022 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:15:25,022 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:15:25,023 INFO L130 BoogieDeclarations]: Found specification of procedure usb_put_hcd [2023-11-19 04:15:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_put_hcd [2023-11-19 04:15:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2023-11-19 04:15:25,024 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2023-11-19 04:15:25,024 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:15:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_probe [2023-11-19 04:15:25,025 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_probe [2023-11-19 04:15:25,025 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:15:25,025 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:15:25,026 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action [2023-11-19 04:15:25,026 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action [2023-11-19 04:15:25,029 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-11-19 04:15:25,030 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-11-19 04:15:25,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:15:25,031 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_get_frame [2023-11-19 04:15:25,031 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_get_frame [2023-11-19 04:15:25,032 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:15:25,033 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:15:25,033 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_stop [2023-11-19 04:15:25,033 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_stop [2023-11-19 04:15:25,039 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_1 [2023-11-19 04:15:25,039 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_1 [2023-11-19 04:15:25,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:15:25,039 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2023-11-19 04:15:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2023-11-19 04:15:25,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:15:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:15:25,040 INFO L130 BoogieDeclarations]: Found specification of procedure qh_schedule [2023-11-19 04:15:25,040 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_schedule [2023-11-19 04:15:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure check_intr_schedule [2023-11-19 04:15:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure check_intr_schedule [2023-11-19 04:15:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure __oxu_urb_enqueue [2023-11-19 04:15:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure __oxu_urb_enqueue [2023-11-19 04:15:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_drv_remove [2023-11-19 04:15:25,041 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_drv_remove [2023-11-19 04:15:25,041 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2023-11-19 04:15:25,042 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2023-11-19 04:15:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:15:25,042 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:15:25,042 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2023-11-19 04:15:25,042 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2023-11-19 04:15:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:15:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 04:15:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 04:15:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 04:15:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 04:15:25,043 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 04:15:25,043 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 04:15:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:15:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:15:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_work [2023-11-19 04:15:25,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_work [2023-11-19 04:15:25,044 INFO L130 BoogieDeclarations]: Found specification of procedure qh_unlink_periodic [2023-11-19 04:15:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_unlink_periodic [2023-11-19 04:15:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:15:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:15:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_phys [2023-11-19 04:15:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_phys [2023-11-19 04:15:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:15:25,045 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-19 04:15:25,045 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-19 04:15:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2023-11-19 04:15:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure unlink_async [2023-11-19 04:15:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure unlink_async [2023-11-19 04:15:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_mem_cleanup [2023-11-19 04:15:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_mem_cleanup [2023-11-19 04:15:25,046 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_to_hcd [2023-11-19 04:15:25,046 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_to_hcd [2023-11-19 04:15:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:15:25,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:15:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2023-11-19 04:15:25,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2023-11-19 04:15:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:15:25,047 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_qh_alloc [2023-11-19 04:15:25,047 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_qh_alloc [2023-11-19 04:15:25,048 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_suspend [2023-11-19 04:15:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_suspend [2023-11-19 04:15:25,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_calc_bus_time [2023-11-19 04:15:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_calc_bus_time [2023-11-19 04:15:25,048 INFO L130 BoogieDeclarations]: Found specification of procedure __le32_to_cpup [2023-11-19 04:15:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __le32_to_cpup [2023-11-19 04:15:25,048 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:15:25,048 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:15:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure qh_link_async [2023-11-19 04:15:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_link_async [2023-11-19 04:15:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:15:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_hub_status_data [2023-11-19 04:15:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_hub_status_data [2023-11-19 04:15:25,049 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_shutdown [2023-11-19 04:15:25,049 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_shutdown [2023-11-19 04:15:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure qh_urb_transaction [2023-11-19 04:15:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_urb_transaction [2023-11-19 04:15:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:15:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:15:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure qh_get [2023-11-19 04:15:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_get [2023-11-19 04:15:25,050 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 04:15:25,050 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 04:15:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_quiesce [2023-11-19 04:15:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_quiesce [2023-11-19 04:15:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure scnprintf [2023-11-19 04:15:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure scnprintf [2023-11-19 04:15:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure timer_action_done [2023-11-19 04:15:25,051 INFO L138 BoogieDeclarations]: Found implementation of procedure timer_action_done [2023-11-19 04:15:25,051 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2023-11-19 04:15:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2023-11-19 04:15:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-11-19 04:15:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-11-19 04:15:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure device_may_wakeup [2023-11-19 04:15:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure device_may_wakeup [2023-11-19 04:15:25,052 INFO L130 BoogieDeclarations]: Found specification of procedure usb_remove_hcd [2023-11-19 04:15:25,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_remove_hcd [2023-11-19 04:15:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_murb_free [2023-11-19 04:15:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_murb_free [2023-11-19 04:15:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_urb_done [2023-11-19 04:15:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_urb_done [2023-11-19 04:15:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure platform_set_drvdata [2023-11-19 04:15:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_set_drvdata [2023-11-19 04:15:25,053 INFO L130 BoogieDeclarations]: Found specification of procedure handshake [2023-11-19 04:15:25,053 INFO L138 BoogieDeclarations]: Found implementation of procedure handshake [2023-11-19 04:15:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure platform_get_drvdata [2023-11-19 04:15:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_get_drvdata [2023-11-19 04:15:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure qh_refresh [2023-11-19 04:15:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_refresh [2023-11-19 04:15:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:15:25,054 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:15:25,054 INFO L130 BoogieDeclarations]: Found specification of procedure start_unlink_async [2023-11-19 04:15:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure start_unlink_async [2023-11-19 04:15:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure msecs_to_jiffies [2023-11-19 04:15:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure msecs_to_jiffies [2023-11-19 04:15:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_bus_resume [2023-11-19 04:15:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_bus_resume [2023-11-19 04:15:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_urb_dequeue [2023-11-19 04:15:25,055 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_urb_dequeue [2023-11-19 04:15:25,055 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:15:25,056 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:15:25,056 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2023-11-19 04:15:25,057 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2023-11-19 04:15:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-11-19 04:15:25,061 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-11-19 04:15:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-11-19 04:15:25,061 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-11-19 04:15:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure qh_append_tds [2023-11-19 04:15:25,061 INFO L138 BoogieDeclarations]: Found implementation of procedure qh_append_tds [2023-11-19 04:15:25,061 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_remove [2023-11-19 04:15:25,062 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_remove [2023-11-19 04:15:25,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:15:25,063 INFO L130 BoogieDeclarations]: Found specification of procedure ehci_qtd_alloc [2023-11-19 04:15:25,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ehci_qtd_alloc [2023-11-19 04:15:25,064 INFO L130 BoogieDeclarations]: Found specification of procedure hcd_to_oxu [2023-11-19 04:15:25,064 INFO L138 BoogieDeclarations]: Found implementation of procedure hcd_to_oxu [2023-11-19 04:15:25,064 INFO L130 BoogieDeclarations]: Found specification of procedure oxu_reset [2023-11-19 04:15:25,064 INFO L138 BoogieDeclarations]: Found implementation of procedure oxu_reset [2023-11-19 04:15:25,064 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:15:25,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:15:25,065 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:15:25,065 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:15:26,050 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:15:26,056 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:15:26,847 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:15:37,104 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:15:43,976 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:15:43,976 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:15:44,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:44 BoogieIcfgContainer [2023-11-19 04:15:44,001 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:15:44,005 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:15:44,005 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:15:44,008 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:15:44,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:15:20" (1/3) ... [2023-11-19 04:15:44,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a9694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:15:44, skipping insertion in model container [2023-11-19 04:15:44,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:15:23" (2/3) ... [2023-11-19 04:15:44,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@731a9694 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:15:44, skipping insertion in model container [2023-11-19 04:15:44,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:15:44" (3/3) ... [2023-11-19 04:15:44,013 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--usb--host--oxu210hp-hcd.ko-entry_point.cil.out.i [2023-11-19 04:15:44,033 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:15:44,034 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:15:44,137 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:15:44,143 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;@42b6dfd8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:15:44,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:15:44,157 INFO L276 IsEmpty]: Start isEmpty. Operand has 2331 states, 1445 states have (on average 1.3432525951557093) internal successors, (1941), 1511 states have internal predecessors, (1941), 762 states have call successors, (762), 123 states have call predecessors, (762), 122 states have return successors, (756), 746 states have call predecessors, (756), 756 states have call successors, (756) [2023-11-19 04:15:44,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2023-11-19 04:15:44,217 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:44,218 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:15:44,219 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:44,224 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash -754684986, now seen corresponding path program 1 times [2023-11-19 04:15:44,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:15:44,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172500629] [2023-11-19 04:15:44,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:44,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:15:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:15:45,521 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-11-19 04:15:45,522 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:15:45,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172500629] [2023-11-19 04:15:45,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172500629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:15:45,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:15:45,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:15:45,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482713735] [2023-11-19 04:15:45,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:15:45,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:15:45,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:15:45,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:15:45,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:15:45,689 INFO L87 Difference]: Start difference. First operand has 2331 states, 1445 states have (on average 1.3432525951557093) internal successors, (1941), 1511 states have internal predecessors, (1941), 762 states have call successors, (762), 123 states have call predecessors, (762), 122 states have return successors, (756), 746 states have call predecessors, (756), 756 states have call successors, (756) Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-19 04:15:47,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:15:50,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:15:54,833 WARN L539 Checker$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 04:15:55,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:15:55,152 INFO L93 Difference]: Finished difference Result 6787 states and 10066 transitions. [2023-11-19 04:15:55,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:15:55,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 244 [2023-11-19 04:15:55,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:15:55,212 INFO L225 Difference]: With dead ends: 6787 [2023-11-19 04:15:55,213 INFO L226 Difference]: Without dead ends: 4454 [2023-11-19 04:15:55,236 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 04:15:55,240 INFO L413 NwaCegarLoop]: 3112 mSDtfsCounter, 3245 mSDsluCounter, 2955 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3245 SdHoareTripleChecker+Valid, 6067 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-11-19 04:15:55,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3245 Valid, 6067 Invalid, 789 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 785 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2023-11-19 04:15:55,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2023-11-19 04:15:55,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4450. [2023-11-19 04:15:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4450 states, 2758 states have (on average 1.3306744017403915) internal successors, (3670), 2875 states have internal predecessors, (3670), 1450 states have call successors, (1450), 242 states have call predecessors, (1450), 241 states have return successors, (1449), 1428 states have call predecessors, (1449), 1449 states have call successors, (1449) [2023-11-19 04:15:55,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4450 states to 4450 states and 6569 transitions. [2023-11-19 04:15:55,690 INFO L78 Accepts]: Start accepts. Automaton has 4450 states and 6569 transitions. Word has length 244 [2023-11-19 04:15:55,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:15:55,695 INFO L495 AbstractCegarLoop]: Abstraction has 4450 states and 6569 transitions. [2023-11-19 04:15:55,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-19 04:15:55,695 INFO L276 IsEmpty]: Start isEmpty. Operand 4450 states and 6569 transitions. [2023-11-19 04:15:55,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2023-11-19 04:15:55,718 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:15:55,718 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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, 1, 1] [2023-11-19 04:15:55,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:15:55,719 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:15:55,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:15:55,719 INFO L85 PathProgramCache]: Analyzing trace with hash -732442893, now seen corresponding path program 1 times [2023-11-19 04:15:55,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:15:55,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662064455] [2023-11-19 04:15:55,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:15:55,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:15:56,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:15:56,404 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2023-11-19 04:15:56,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:15:56,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662064455] [2023-11-19 04:15:56,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662064455] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:15:56,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:15:56,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:15:56,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8256197] [2023-11-19 04:15:56,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:15:56,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:15:56,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:15:56,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:15:56,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:15:56,416 INFO L87 Difference]: Start difference. First operand 4450 states and 6569 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2023-11-19 04:15:58,459 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 []