./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 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_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje --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 80259aeae4ba31147e34290e116025197f33b09a822b5f4bbd0689489ba43471 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 07:03:48,790 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 07:03:48,910 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 07:03:48,921 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 07:03:48,922 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 07:03:48,955 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 07:03:48,956 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 07:03:48,956 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 07:03:48,957 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 07:03:48,958 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 07:03:48,958 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 07:03:48,958 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 07:03:48,959 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 07:03:48,959 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 07:03:48,960 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 07:03:48,961 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 07:03:48,961 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 07:03:48,962 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 07:03:48,962 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 07:03:48,963 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 07:03:48,963 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 07:03:48,964 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 07:03:48,965 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 07:03:48,966 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 07:03:48,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 07:03:48,967 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 07:03:48,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 07:03:48,968 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 07:03:48,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 07:03:48,969 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 07:03:48,969 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 07:03:48,970 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 07:03:48,970 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 07:03:48,971 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 07:03:48,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 07:03:48,972 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:48,972 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 07:03:48,973 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 07:03:48,973 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 07:03:48,973 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 07:03:48,974 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 07:03:48,974 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 07:03:48,975 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 07:03:48,975 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 07:03:48,975 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_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80259aeae4ba31147e34290e116025197f33b09a822b5f4bbd0689489ba43471 [2024-11-09 07:03:49,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 07:03:49,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 07:03:49,389 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 07:03:49,392 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 07:03:49,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 07:03:49,395 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 07:03:51,630 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 07:03:52,394 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 07:03:52,394 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2024-11-09 07:03:52,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/data/db6fa67fe/18f491a0e4eb48c29f9e4ba3d0e2b78f/FLAGb5193baed [2024-11-09 07:03:52,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/data/db6fa67fe/18f491a0e4eb48c29f9e4ba3d0e2b78f [2024-11-09 07:03:52,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 07:03:52,479 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 07:03:52,481 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:52,481 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 07:03:52,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 07:03:52,493 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:52,494 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53e5f191 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:52, skipping insertion in model container [2024-11-09 07:03:52,494 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 07:03:52" (1/1) ... [2024-11-09 07:03:52,715 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 07:03:54,440 WARN L250 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_5ccf53f5-1420-466d-8ded-e3aac39d1033/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2024-11-09 07:03:56,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:56,107 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 07:03:56,227 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"); [3760] [2024-11-09 07:03:56,233 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"); [3794-3795] [2024-11-09 07:03:56,234 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"); [3798-3799] [2024-11-09 07:03:56,234 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"); [3802-3803] [2024-11-09 07:03:56,235 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"); [3806-3807] [2024-11-09 07:03:56,259 WARN L250 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_5ccf53f5-1420-466d-8ded-e3aac39d1033/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[119996,120009] [2024-11-09 07:03:56,752 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)); [7459] [2024-11-09 07:03:56,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7466] [2024-11-09 07:03:56,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7475-7476] [2024-11-09 07:03:56,754 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 %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [7492-7493] [2024-11-09 07:03:56,755 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)); [7507-7508] [2024-11-09 07:03:56,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [7521] [2024-11-09 07:03:56,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7524] [2024-11-09 07:03:56,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7527] [2024-11-09 07:03:56,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [7530] [2024-11-09 07:03:56,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [7547] [2024-11-09 07:03:56,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7550] [2024-11-09 07:03:56,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7553] [2024-11-09 07:03:56,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [7556] [2024-11-09 07:03:56,899 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 07:03:57,171 INFO L204 MainTranslator]: Completed translation [2024-11-09 07:03:57,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57 WrapperNode [2024-11-09 07:03:57,172 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 07:03:57,174 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:57,174 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 07:03:57,174 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 07:03:57,184 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,346 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,618 INFO L138 Inliner]: procedures = 373, calls = 3127, calls flagged for inlining = 201, calls inlined = 182, statements flattened = 6824 [2024-11-09 07:03:57,620 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 07:03:57,621 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 07:03:57,621 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 07:03:57,621 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 07:03:57,634 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,693 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,694 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,912 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:57,960 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:58,002 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:58,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:58,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 07:03:58,087 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 07:03:58,087 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 07:03:58,087 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 07:03:58,088 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (1/1) ... [2024-11-09 07:03:58,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 07:03:58,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 07:03:58,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 07:03:58,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5ccf53f5-1420-466d-8ded-e3aac39d1033/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 07:03:58,178 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2024-11-09 07:03:58,179 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2024-11-09 07:03:58,179 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2024-11-09 07:03:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2024-11-09 07:03:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2024-11-09 07:03:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2024-11-09 07:03:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2024-11-09 07:03:58,180 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2024-11-09 07:03:58,180 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2024-11-09 07:03:58,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2024-11-09 07:03:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_14 [2024-11-09 07:03:58,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_14 [2024-11-09 07:03:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2024-11-09 07:03:58,183 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2024-11-09 07:03:58,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 07:03:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 07:03:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 07:03:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2024-11-09 07:03:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2024-11-09 07:03:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2024-11-09 07:03:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2024-11-09 07:03:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2024-11-09 07:03:58,184 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2024-11-09 07:03:58,184 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2024-11-09 07:03:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2024-11-09 07:03:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2024-11-09 07:03:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2024-11-09 07:03:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2024-11-09 07:03:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2024-11-09 07:03:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-09 07:03:58,185 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-09 07:03:58,185 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2024-11-09 07:03:58,187 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2024-11-09 07:03:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2024-11-09 07:03:58,188 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2024-11-09 07:03:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 07:03:58,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 07:03:58,188 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2024-11-09 07:03:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2024-11-09 07:03:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2024-11-09 07:03:58,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2024-11-09 07:03:58,189 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2024-11-09 07:03:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2024-11-09 07:03:58,190 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2024-11-09 07:03:58,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2024-11-09 07:03:58,191 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2024-11-09 07:03:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2024-11-09 07:03:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2024-11-09 07:03:58,192 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2024-11-09 07:03:58,192 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2024-11-09 07:03:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2024-11-09 07:03:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-09 07:03:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-09 07:03:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 07:03:58,193 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 07:03:58,193 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2024-11-09 07:03:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2024-11-09 07:03:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2024-11-09 07:03:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2024-11-09 07:03:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2024-11-09 07:03:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2024-11-09 07:03:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2024-11-09 07:03:58,194 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2024-11-09 07:03:58,194 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2024-11-09 07:03:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2024-11-09 07:03:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 07:03:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 07:03:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 07:03:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 07:03:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2024-11-09 07:03:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2024-11-09 07:03:58,195 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2024-11-09 07:03:58,195 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2024-11-09 07:03:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2024-11-09 07:03:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2024-11-09 07:03:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2024-11-09 07:03:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2024-11-09 07:03:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2024-11-09 07:03:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2024-11-09 07:03:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___2 [2024-11-09 07:03:58,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___2 [2024-11-09 07:03:58,196 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2024-11-09 07:03:58,199 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2024-11-09 07:03:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-09 07:03:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2024-11-09 07:03:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-09 07:03:58,200 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-09 07:03:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 07:03:58,200 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-09 07:03:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-09 07:03:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2024-11-09 07:03:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2024-11-09 07:03:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2024-11-09 07:03:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2024-11-09 07:03:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2024-11-09 07:03:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2024-11-09 07:03:58,201 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2024-11-09 07:03:58,201 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2024-11-09 07:03:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2024-11-09 07:03:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2024-11-09 07:03:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 07:03:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-09 07:03:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-09 07:03:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2024-11-09 07:03:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2024-11-09 07:03:58,202 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2024-11-09 07:03:58,202 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2024-11-09 07:03:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-09 07:03:58,204 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-09 07:03:58,204 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 07:03:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 07:03:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2024-11-09 07:03:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2024-11-09 07:03:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2024-11-09 07:03:58,205 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2024-11-09 07:03:58,205 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 07:03:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 07:03:58,206 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 07:03:58,206 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 07:03:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 07:03:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 07:03:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2024-11-09 07:03:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2024-11-09 07:03:58,207 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-09 07:03:58,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2024-11-09 07:03:58,208 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2024-11-09 07:03:58,209 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2024-11-09 07:03:58,209 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-11-09 07:03:58,210 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-11-09 07:03:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2024-11-09 07:03:58,210 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2024-11-09 07:03:58,210 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2024-11-09 07:03:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2024-11-09 07:03:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-09 07:03:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-09 07:03:58,212 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-09 07:03:58,212 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-09 07:03:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-09 07:03:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-09 07:03:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2024-11-09 07:03:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2024-11-09 07:03:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2024-11-09 07:03:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2024-11-09 07:03:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2024-11-09 07:03:58,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2024-11-09 07:03:58,213 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 07:03:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 07:03:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2024-11-09 07:03:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2024-11-09 07:03:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_bulk_callback [2024-11-09 07:03:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_bulk_callback [2024-11-09 07:03:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-09 07:03:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-09 07:03:58,214 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2024-11-09 07:03:58,214 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2024-11-09 07:03:58,216 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2024-11-09 07:03:58,217 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2024-11-09 07:03:58,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 07:03:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2024-11-09 07:03:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2024-11-09 07:03:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-09 07:03:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-09 07:03:58,218 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2024-11-09 07:03:58,218 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2024-11-09 07:03:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2024-11-09 07:03:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2024-11-09 07:03:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2024-11-09 07:03:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2024-11-09 07:03:58,219 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2024-11-09 07:03:58,219 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2024-11-09 07:03:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 07:03:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2024-11-09 07:03:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2024-11-09 07:03:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2024-11-09 07:03:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2024-11-09 07:03:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2024-11-09 07:03:58,220 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2024-11-09 07:03:58,220 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2024-11-09 07:03:58,221 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2024-11-09 07:03:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2024-11-09 07:03:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2024-11-09 07:03:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2024-11-09 07:03:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2024-11-09 07:03:58,222 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 07:03:58,222 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 07:03:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2024-11-09 07:03:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2024-11-09 07:03:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2024-11-09 07:03:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2024-11-09 07:03:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2024-11-09 07:03:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2024-11-09 07:03:58,223 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 07:03:58,223 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 07:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_41 [2024-11-09 07:03:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_41 [2024-11-09 07:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_42 [2024-11-09 07:03:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_42 [2024-11-09 07:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2024-11-09 07:03:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2024-11-09 07:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 07:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2024-11-09 07:03:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2024-11-09 07:03:58,224 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 07:03:58,224 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 07:03:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2024-11-09 07:03:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2024-11-09 07:03:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2024-11-09 07:03:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2024-11-09 07:03:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 07:03:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 07:03:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2024-11-09 07:03:58,225 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2024-11-09 07:03:58,225 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2024-11-09 07:03:58,229 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2024-11-09 07:03:58,229 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2024-11-09 07:03:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2024-11-09 07:03:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 07:03:58,230 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2024-11-09 07:03:58,230 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2024-11-09 07:03:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 07:03:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 07:03:58,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 07:03:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 07:03:58,297 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-11-09 07:03:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-11-09 07:03:58,298 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_18 [2024-11-09 07:03:58,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_18 [2024-11-09 07:03:58,299 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put_4 [2024-11-09 07:03:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put_4 [2024-11-09 07:03:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:03:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 07:03:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:03:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-09 07:03:58,300 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2024-11-09 07:03:58,300 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2024-11-09 07:03:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-09 07:03:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-09 07:03:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2024-11-09 07:03:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2024-11-09 07:03:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_22 [2024-11-09 07:03:58,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_22 [2024-11-09 07:03:58,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2024-11-09 07:03:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2024-11-09 07:03:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2024-11-09 07:03:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2024-11-09 07:03:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2024-11-09 07:03:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2024-11-09 07:03:58,302 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2024-11-09 07:03:58,302 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2024-11-09 07:03:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 07:03:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 07:03:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2024-11-09 07:03:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2024-11-09 07:03:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 07:03:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-09 07:03:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2024-11-09 07:03:58,303 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2024-11-09 07:03:58,303 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 07:03:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 07:03:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2024-11-09 07:03:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2024-11-09 07:03:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 07:03:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 07:03:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 07:03:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2024-11-09 07:03:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2024-11-09 07:03:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2024-11-09 07:03:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2024-11-09 07:03:58,304 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-09 07:03:58,304 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-09 07:03:59,502 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 07:03:59,507 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 07:04:00,168 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 07:04:01,414 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___2FINAL: assume true; [2024-11-09 07:04:17,758 INFO L? ?]: Removed 2545 outVars from TransFormulas that were not future-live. [2024-11-09 07:04:17,759 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 07:04:19,748 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 07:04:19,751 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-09 07:04:19,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:04:19 BoogieIcfgContainer [2024-11-09 07:04:19,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 07:04:19,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 07:04:19,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 07:04:19,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 07:04:19,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 07:03:52" (1/3) ... [2024-11-09 07:04:19,766 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789a72c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:04:19, skipping insertion in model container [2024-11-09 07:04:19,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 07:03:57" (2/3) ... [2024-11-09 07:04:19,767 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@789a72c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 07:04:19, skipping insertion in model container [2024-11-09 07:04:19,767 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 07:04:19" (3/3) ... [2024-11-09 07:04:19,769 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2024-11-09 07:04:19,795 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 07:04:19,796 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 07:04:20,080 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 07:04:20,091 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7b86cedc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 07:04:20,092 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 07:04:20,110 INFO L276 IsEmpty]: Start isEmpty. Operand has 1846 states, 1187 states have (on average 1.3588879528222408) internal successors, (1613), 1231 states have internal predecessors, (1613), 531 states have call successors, (531), 128 states have call predecessors, (531), 126 states have return successors, (517), 506 states have call predecessors, (517), 517 states have call successors, (517) [2024-11-09 07:04:20,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-09 07:04:20,143 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:20,144 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:20,145 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:20,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:20,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1581153726, now seen corresponding path program 1 times [2024-11-09 07:04:20,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:20,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001509023] [2024-11-09 07:04:20,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:20,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:28,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:29,301 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:04:29,303 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:29,303 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001509023] [2024-11-09 07:04:29,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001509023] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:29,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:29,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:04:29,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596255684] [2024-11-09 07:04:29,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:29,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:04:29,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:29,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:04:29,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:04:29,369 INFO L87 Difference]: Start difference. First operand has 1846 states, 1187 states have (on average 1.3588879528222408) internal successors, (1613), 1231 states have internal predecessors, (1613), 531 states have call successors, (531), 128 states have call predecessors, (531), 126 states have return successors, (517), 506 states have call predecessors, (517), 517 states have call successors, (517) Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 07:04:31,536 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:33,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:37,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:41,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:04:41,597 INFO L93 Difference]: Finished difference Result 5416 states and 8019 transitions. [2024-11-09 07:04:41,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:04:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 65 [2024-11-09 07:04:41,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:04:41,685 INFO L225 Difference]: With dead ends: 5416 [2024-11-09 07:04:41,685 INFO L226 Difference]: Without dead ends: 3555 [2024-11-09 07:04:41,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:04:41,724 INFO L432 NwaCegarLoop]: 2408 mSDtfsCounter, 2557 mSDsluCounter, 2335 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 3 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2557 SdHoareTripleChecker+Valid, 4743 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:04:41,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2557 Valid, 4743 Invalid, 517 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 511 Invalid, 3 Unknown, 0 Unchecked, 11.8s Time] [2024-11-09 07:04:41,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3555 states. [2024-11-09 07:04:42,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3555 to 3552. [2024-11-09 07:04:42,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 2311 states have (on average 1.3479013414106447) internal successors, (3115), 2360 states have internal predecessors, (3115), 993 states have call successors, (993), 248 states have call predecessors, (993), 247 states have return successors, (986), 964 states have call predecessors, (986), 986 states have call successors, (986) [2024-11-09 07:04:42,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 5094 transitions. [2024-11-09 07:04:42,111 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 5094 transitions. Word has length 65 [2024-11-09 07:04:42,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:04:42,113 INFO L471 AbstractCegarLoop]: Abstraction has 3552 states and 5094 transitions. [2024-11-09 07:04:42,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 states have internal predecessors, (27), 2 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-09 07:04:42,114 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 5094 transitions. [2024-11-09 07:04:42,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-09 07:04:42,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:04:42,133 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:04:42,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 07:04:42,133 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:04:42,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:04:42,134 INFO L85 PathProgramCache]: Analyzing trace with hash 427585902, now seen corresponding path program 1 times [2024-11-09 07:04:42,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:04:42,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152866503] [2024-11-09 07:04:42,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:04:42,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:04:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:04:50,024 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:04:50,025 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:04:50,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152866503] [2024-11-09 07:04:50,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152866503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:04:50,030 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:04:50,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:04:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555160744] [2024-11-09 07:04:50,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:04:50,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:04:50,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:04:50,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:04:50,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:04:50,035 INFO L87 Difference]: Start difference. First operand 3552 states and 5094 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 07:04:52,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:04:55,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:00,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:02,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:05,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:05,333 INFO L93 Difference]: Finished difference Result 10264 states and 14666 transitions. [2024-11-09 07:05:05,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:05:05,334 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 83 [2024-11-09 07:05:05,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:05,407 INFO L225 Difference]: With dead ends: 10264 [2024-11-09 07:05:05,408 INFO L226 Difference]: Without dead ends: 6730 [2024-11-09 07:05:05,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:05,440 INFO L432 NwaCegarLoop]: 2380 mSDtfsCounter, 2328 mSDsluCounter, 2249 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2328 SdHoareTripleChecker+Valid, 4629 SdHoareTripleChecker+Invalid, 606 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:05,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2328 Valid, 4629 Invalid, 606 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 600 Invalid, 4 Unknown, 0 Unchecked, 14.8s Time] [2024-11-09 07:05:05,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6730 states. [2024-11-09 07:05:05,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6730 to 6697. [2024-11-09 07:05:05,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6697 states, 4345 states have (on average 1.3406214039125433) internal successors, (5825), 4438 states have internal predecessors, (5825), 1871 states have call successors, (1871), 481 states have call predecessors, (1871), 480 states have return successors, (1864), 1819 states have call predecessors, (1864), 1864 states have call successors, (1864) [2024-11-09 07:05:05,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6697 states to 6697 states and 9560 transitions. [2024-11-09 07:05:05,890 INFO L78 Accepts]: Start accepts. Automaton has 6697 states and 9560 transitions. Word has length 83 [2024-11-09 07:05:05,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:05,893 INFO L471 AbstractCegarLoop]: Abstraction has 6697 states and 9560 transitions. [2024-11-09 07:05:05,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (13), 2 states have call predecessors, (13), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-09 07:05:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 6697 states and 9560 transitions. [2024-11-09 07:05:05,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 07:05:05,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:05,904 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:05,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 07:05:05,905 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:05,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:05,905 INFO L85 PathProgramCache]: Analyzing trace with hash -1641348848, now seen corresponding path program 1 times [2024-11-09 07:05:05,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:05,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990054298] [2024-11-09 07:05:05,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:05,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:14,908 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:05:14,908 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:14,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990054298] [2024-11-09 07:05:14,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990054298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:14,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:14,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:05:14,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103526130] [2024-11-09 07:05:14,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:14,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:05:14,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:14,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:05:14,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:14,912 INFO L87 Difference]: Start difference. First operand 6697 states and 9560 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:05:17,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:20,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:25,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:27,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:28,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:28,716 INFO L93 Difference]: Finished difference Result 19801 states and 28502 transitions. [2024-11-09 07:05:28,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:05:28,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2024-11-09 07:05:28,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:28,848 INFO L225 Difference]: With dead ends: 19801 [2024-11-09 07:05:28,848 INFO L226 Difference]: Without dead ends: 13122 [2024-11-09 07:05:28,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:28,904 INFO L432 NwaCegarLoop]: 2684 mSDtfsCounter, 2597 mSDsluCounter, 2327 mSDsCounter, 0 mSdLazyCounter, 564 mSolverCounterSat, 4 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2597 SdHoareTripleChecker+Valid, 5011 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 564 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:28,905 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2597 Valid, 5011 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 564 Invalid, 4 Unknown, 0 Unchecked, 13.3s Time] [2024-11-09 07:05:28,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13122 states. [2024-11-09 07:05:29,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13122 to 13070. [2024-11-09 07:05:29,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13070 states, 8474 states have (on average 1.3379749822987963) internal successors, (11338), 8648 states have internal predecessors, (11338), 3651 states have call successors, (3651), 945 states have call predecessors, (3651), 944 states have return successors, (3920), 3556 states have call predecessors, (3920), 3644 states have call successors, (3920) [2024-11-09 07:05:29,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13070 states to 13070 states and 18909 transitions. [2024-11-09 07:05:29,889 INFO L78 Accepts]: Start accepts. Automaton has 13070 states and 18909 transitions. Word has length 87 [2024-11-09 07:05:29,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:29,890 INFO L471 AbstractCegarLoop]: Abstraction has 13070 states and 18909 transitions. [2024-11-09 07:05:29,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:05:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 13070 states and 18909 transitions. [2024-11-09 07:05:29,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-09 07:05:29,893 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:29,893 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:29,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 07:05:29,894 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:29,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:29,895 INFO L85 PathProgramCache]: Analyzing trace with hash -979379506, now seen corresponding path program 1 times [2024-11-09 07:05:29,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:29,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714661069] [2024-11-09 07:05:29,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:29,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:05:37,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:05:39,742 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:05:39,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:05:39,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714661069] [2024-11-09 07:05:39,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714661069] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:05:39,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:05:39,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:05:39,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279684588] [2024-11-09 07:05:39,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:05:39,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:05:39,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:05:39,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:05:39,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:39,747 INFO L87 Difference]: Start difference. First operand 13070 states and 18909 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:05:41,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:44,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:49,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:51,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:05:53,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:05:53,323 INFO L93 Difference]: Finished difference Result 25748 states and 37408 transitions. [2024-11-09 07:05:53,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:05:53,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 84 [2024-11-09 07:05:53,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:05:53,557 INFO L225 Difference]: With dead ends: 25748 [2024-11-09 07:05:53,557 INFO L226 Difference]: Without dead ends: 25745 [2024-11-09 07:05:53,583 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:05:53,584 INFO L432 NwaCegarLoop]: 2367 mSDtfsCounter, 2509 mSDsluCounter, 2345 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2509 SdHoareTripleChecker+Valid, 4712 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.7s IncrementalHoareTripleChecker+Time [2024-11-09 07:05:53,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2509 Valid, 4712 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 515 Invalid, 4 Unknown, 0 Unchecked, 12.7s Time] [2024-11-09 07:05:53,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25745 states. [2024-11-09 07:05:55,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25745 to 25725. [2024-11-09 07:05:55,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25725 states, 16693 states have (on average 1.339004373090517) internal successors, (22352), 17067 states have internal predecessors, (22352), 7175 states have call successors, (7175), 1865 states have call predecessors, (7175), 1856 states have return successors, (7856), 6952 states have call predecessors, (7856), 7168 states have call successors, (7856) [2024-11-09 07:05:55,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25725 states to 25725 states and 37383 transitions. [2024-11-09 07:05:55,562 INFO L78 Accepts]: Start accepts. Automaton has 25725 states and 37383 transitions. Word has length 84 [2024-11-09 07:05:55,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:05:55,563 INFO L471 AbstractCegarLoop]: Abstraction has 25725 states and 37383 transitions. [2024-11-09 07:05:55,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:05:55,563 INFO L276 IsEmpty]: Start isEmpty. Operand 25725 states and 37383 transitions. [2024-11-09 07:05:55,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-09 07:05:55,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:05:55,567 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:05:55,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 07:05:55,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:05:55,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:05:55,568 INFO L85 PathProgramCache]: Analyzing trace with hash -297573167, now seen corresponding path program 1 times [2024-11-09 07:05:55,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:05:55,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044108273] [2024-11-09 07:05:55,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:05:55,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:05,799 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:06:05,802 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:05,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044108273] [2024-11-09 07:06:05,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044108273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:05,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:05,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:05,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709989089] [2024-11-09 07:06:05,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:05,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:05,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:05,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:05,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:05,805 INFO L87 Difference]: Start difference. First operand 25725 states and 37383 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:06:07,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:10,989 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:15,555 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:17,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:20,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:20,407 INFO L93 Difference]: Finished difference Result 77090 states and 112846 transitions. [2024-11-09 07:06:20,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:20,408 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 85 [2024-11-09 07:06:20,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:20,770 INFO L225 Difference]: With dead ends: 77090 [2024-11-09 07:06:20,771 INFO L226 Difference]: Without dead ends: 51383 [2024-11-09 07:06:20,963 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:20,964 INFO L432 NwaCegarLoop]: 2416 mSDtfsCounter, 2572 mSDsluCounter, 2348 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2572 SdHoareTripleChecker+Valid, 4764 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:20,965 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2572 Valid, 4764 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 4 Unknown, 0 Unchecked, 12.8s Time] [2024-11-09 07:06:21,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51383 states. [2024-11-09 07:06:24,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51383 to 51356. [2024-11-09 07:06:24,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51356 states, 33324 states have (on average 1.3390349297803386) internal successors, (44622), 34082 states have internal predecessors, (44622), 14319 states have call successors, (14319), 3729 states have call predecessors, (14319), 3712 states have return successors, (16096), 13864 states have call predecessors, (16096), 14312 states have call successors, (16096) [2024-11-09 07:06:24,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51356 states to 51356 states and 75037 transitions. [2024-11-09 07:06:24,563 INFO L78 Accepts]: Start accepts. Automaton has 51356 states and 75037 transitions. Word has length 85 [2024-11-09 07:06:24,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:24,564 INFO L471 AbstractCegarLoop]: Abstraction has 51356 states and 75037 transitions. [2024-11-09 07:06:24,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:06:24,565 INFO L276 IsEmpty]: Start isEmpty. Operand 51356 states and 75037 transitions. [2024-11-09 07:06:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-09 07:06:24,568 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:24,569 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:24,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 07:06:24,569 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:24,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:24,570 INFO L85 PathProgramCache]: Analyzing trace with hash -636408271, now seen corresponding path program 1 times [2024-11-09 07:06:24,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:24,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035186068] [2024-11-09 07:06:24,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:24,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:06:31,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:06:32,314 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:06:32,314 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:06:32,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035186068] [2024-11-09 07:06:32,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035186068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:06:32,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:06:32,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:06:32,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328990360] [2024-11-09 07:06:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:06:32,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:06:32,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:06:32,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:06:32,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:32,318 INFO L87 Difference]: Start difference. First operand 51356 states and 75037 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:06:34,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:37,967 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:40,260 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:42,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:06:47,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:06:47,162 INFO L93 Difference]: Finished difference Result 76532 states and 114099 transitions. [2024-11-09 07:06:47,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:06:47,163 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 86 [2024-11-09 07:06:47,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:06:47,741 INFO L225 Difference]: With dead ends: 76532 [2024-11-09 07:06:47,741 INFO L226 Difference]: Without dead ends: 76529 [2024-11-09 07:06:47,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:06:47,794 INFO L432 NwaCegarLoop]: 2755 mSDtfsCounter, 2520 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2520 SdHoareTripleChecker+Valid, 5184 SdHoareTripleChecker+Invalid, 533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2024-11-09 07:06:47,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2520 Valid, 5184 Invalid, 533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 528 Invalid, 4 Unknown, 0 Unchecked, 12.3s Time] [2024-11-09 07:06:47,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76529 states. [2024-11-09 07:06:52,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76529 to 76444. [2024-11-09 07:06:52,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76444 states, 49620 states have (on average 1.341011688835147) internal successors, (66541), 50890 states have internal predecessors, (66541), 21319 states have call successors, (21319), 5593 states have call predecessors, (21319), 5504 states have return successors, (26136), 20424 states have call predecessors, (26136), 21312 states have call successors, (26136) [2024-11-09 07:06:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76444 states to 76444 states and 113996 transitions. [2024-11-09 07:06:54,320 INFO L78 Accepts]: Start accepts. Automaton has 76444 states and 113996 transitions. Word has length 86 [2024-11-09 07:06:54,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 07:06:54,323 INFO L471 AbstractCegarLoop]: Abstraction has 76444 states and 113996 transitions. [2024-11-09 07:06:54,323 INFO L472 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, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:06:54,323 INFO L276 IsEmpty]: Start isEmpty. Operand 76444 states and 113996 transitions. [2024-11-09 07:06:54,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-09 07:06:54,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 07:06:54,328 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 07:06:54,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 07:06:54,330 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 07:06:54,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 07:06:54,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1744610260, now seen corresponding path program 1 times [2024-11-09 07:06:54,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 07:06:54,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926228814] [2024-11-09 07:06:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 07:06:54,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 07:07:02,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 07:07:02,814 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-11-09 07:07:02,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 07:07:02,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926228814] [2024-11-09 07:07:02,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926228814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 07:07:02,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 07:07:02,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 07:07:02,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965167280] [2024-11-09 07:07:02,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 07:07:02,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 07:07:02,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 07:07:02,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 07:07:02,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:02,819 INFO L87 Difference]: Start difference. First operand 76444 states and 113996 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-09 07:07:04,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:08,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:11,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:13,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 07:07:22,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 07:07:22,289 INFO L93 Difference]: Finished difference Result 168155 states and 252782 transitions. [2024-11-09 07:07:22,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 07:07:22,290 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 87 [2024-11-09 07:07:22,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 07:07:24,041 INFO L225 Difference]: With dead ends: 168155 [2024-11-09 07:07:24,041 INFO L226 Difference]: Without dead ends: 112817 [2024-11-09 07:07:24,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 07:07:24,525 INFO L432 NwaCegarLoop]: 2808 mSDtfsCounter, 2446 mSDsluCounter, 2365 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2446 SdHoareTripleChecker+Valid, 5173 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-11-09 07:07:24,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2446 Valid, 5173 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 546 Invalid, 4 Unknown, 0 Unchecked, 13.2s Time] [2024-11-09 07:07:24,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112817 states.