./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire --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 bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:15:27,140 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:15:27,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:15:27,258 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:15:27,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:15:27,299 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:15:27,300 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:15:27,300 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:15:27,301 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:15:27,306 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:15:27,307 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:15:27,307 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:15:27,308 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:15:27,309 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:15:27,310 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:15:27,310 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:15:27,311 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:15:27,311 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:15:27,312 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:15:27,312 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:15:27,313 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:15:27,313 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:15:27,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:15:27,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:15:27,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:15:27,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:15:27,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:15:27,317 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:15:27,317 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:15:27,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:15:27,319 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:15:27,319 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:15:27,319 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:15:27,320 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:15:27,320 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:27,320 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:15:27,321 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:15:27,321 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:15:27,321 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:15:27,321 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:15:27,321 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:15:27,322 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:15:27,322 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:15:27,322 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:15:27,323 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_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf654a6a1eca45ac77a809162568fb8018795c05fa9eb6946186269d2e2c9c25 [2023-11-23 21:15:27,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:15:27,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:15:27,622 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:15:27,623 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:15:27,624 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:15:27,625 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:15:30,852 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:15:31,496 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:15:31,498 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:15:31,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/data/86388e4ef/c66d9d7ca7fb4bf199188f68813ad8d1/FLAG7bb7596b7 [2023-11-23 21:15:31,573 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/data/86388e4ef/c66d9d7ca7fb4bf199188f68813ad8d1 [2023-11-23 21:15:31,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:15:31,582 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:15:31,587 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:31,587 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:15:31,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:15:31,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:31" (1/1) ... [2023-11-23 21:15:31,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f512ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:31, skipping insertion in model container [2023-11-23 21:15:31,594 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:15:31" (1/1) ... [2023-11-23 21:15:31,780 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:15:34,821 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2023-11-23 21:15:35,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:35,185 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:15:35,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3943] [2023-11-23 21:15:35,317 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3945] [2023-11-23 21:15:35,318 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"); [3955] [2023-11-23 21:15:35,320 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; subl %2, %0; sete %1": "+m" (v->counter), "=qm" (c): "er" (i): "memory"); [3999-4000] [2023-11-23 21:15:35,321 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"); [4011-4012] [2023-11-23 21:15:35,321 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"); [4015-4016] [2023-11-23 21:15:35,322 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"); [4019-4020] [2023-11-23 21:15:35,322 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"); [4023-4024] [2023-11-23 21:15:35,696 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)); [8320] [2023-11-23 21:15:35,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8327] [2023-11-23 21:15:35,697 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [8336-8337] [2023-11-23 21:15:35,698 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, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [8353-8354] [2023-11-23 21:15:35,699 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)); [8368-8369] [2023-11-23 21:15:35,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [8383] [2023-11-23 21:15:35,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8386] [2023-11-23 21:15:35,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8389] [2023-11-23 21:15:35,701 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8392] [2023-11-23 21:15:35,836 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[323188,323201] [2023-11-23 21:15:35,858 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:15:36,135 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:36,135 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:36,136 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:15:36,146 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:15:36,146 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36 WrapperNode [2023-11-23 21:15:36,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:15:36,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:36,148 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:15:36,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:15:36,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,565 INFO L138 Inliner]: procedures = 481, calls = 4190, calls flagged for inlining = 214, calls inlined = 207, statements flattened = 8236 [2023-11-23 21:15:36,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:15:36,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:15:36,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:15:36,567 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:15:36,577 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,616 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,823 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:36,866 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,071 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,192 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:15:37,193 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:15:37,193 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:15:37,193 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:15:37,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (1/1) ... [2023-11-23 21:15:37,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:15:37,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:15:37,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:15:37,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9f368071-de01-4429-b83a-accddf87cc83/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:15:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-23 21:15:37,276 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-23 21:15:37,276 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-23 21:15:37,276 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-23 21:15:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-23 21:15:37,277 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-23 21:15:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:15:37,277 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:15:37,277 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-23 21:15:37,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-23 21:15:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-23 21:15:37,280 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-23 21:15:37,280 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-23 21:15:37,280 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-23 21:15:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:15:37,281 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:15:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-23 21:15:37,281 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-23 21:15:37,281 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:15:37,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:15:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-23 21:15:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-23 21:15:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2023-11-23 21:15:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2023-11-23 21:15:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-23 21:15:37,282 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-23 21:15:37,282 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-23 21:15:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-23 21:15:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 21:15:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 21:15:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-11-23 21:15:37,283 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-11-23 21:15:37,283 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2023-11-23 21:15:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2023-11-23 21:15:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-23 21:15:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-23 21:15:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-23 21:15:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-23 21:15:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2023-11-23 21:15:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2023-11-23 21:15:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:15:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:15:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-23 21:15:37,285 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-23 21:15:37,285 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-23 21:15:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-23 21:15:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-23 21:15:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-23 21:15:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-23 21:15:37,286 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-23 21:15:37,286 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:15:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:15:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:15:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:15:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:15:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-23 21:15:37,287 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-23 21:15:37,287 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-23 21:15:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-23 21:15:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:15:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-23 21:15:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-23 21:15:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:15:37,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:15:37,288 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:15:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:15:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-23 21:15:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-23 21:15:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:15:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:15:37,289 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:15:37,289 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-23 21:15:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-23 21:15:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-23 21:15:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-23 21:15:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:15:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:15:37,290 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-23 21:15:37,290 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-23 21:15:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-23 21:15:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-23 21:15:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:15:37,291 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:15:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:15:37,291 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-23 21:15:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-23 21:15:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:15:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:15:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:15:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:15:37,292 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:15:37,292 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-23 21:15:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-23 21:15:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-23 21:15:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-23 21:15:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-11-23 21:15:37,293 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-11-23 21:15:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:15:37,293 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 21:15:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 21:15:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-23 21:15:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-23 21:15:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-23 21:15:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-23 21:15:37,294 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:15:37,294 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:15:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:15:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:15:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 21:15:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 21:15:37,295 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:15:37,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:15:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:15:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:15:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:15:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:15:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:15:37,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:15:37,296 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:15:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:15:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-23 21:15:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-23 21:15:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 21:15:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 21:15:37,297 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-23 21:15:37,297 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-23 21:15:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:15:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:15:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-23 21:15:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-23 21:15:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:15:37,298 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:15:37,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:15:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:15:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-23 21:15:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-23 21:15:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:15:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:15:37,299 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-23 21:15:37,299 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-23 21:15:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-23 21:15:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-23 21:15:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:15:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:15:37,300 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:15:37,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:15:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:15:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:15:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-23 21:15:37,301 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-23 21:15:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:15:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:15:37,301 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:15:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:15:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2023-11-23 21:15:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2023-11-23 21:15:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-23 21:15:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-23 21:15:37,302 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 21:15:37,302 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 21:15:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-23 21:15:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-23 21:15:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:15:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:15:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-23 21:15:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-23 21:15:37,303 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:15:37,303 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:15:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-11-23 21:15:37,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-11-23 21:15:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-23 21:15:37,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-23 21:15:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2023-11-23 21:15:37,304 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2023-11-23 21:15:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-23 21:15:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-23 21:15:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:15:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:15:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2023-11-23 21:15:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_disc_mutex_of_usb_serial [2023-11-23 21:15:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2023-11-23 21:15:37,305 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2023-11-23 21:15:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock [2023-11-23 21:15:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock [2023-11-23 21:15:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-23 21:15:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-23 21:15:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:15:37,306 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:15:37,306 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:15:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-23 21:15:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-23 21:15:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-23 21:15:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-23 21:15:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2023-11-23 21:15:37,307 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2023-11-23 21:15:37,307 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:15:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:15:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:15:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-23 21:15:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-23 21:15:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:15:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:15:37,308 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:15:37,308 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:15:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:15:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure try_module_get [2023-11-23 21:15:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure try_module_get [2023-11-23 21:15:37,309 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:15:37,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:15:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-23 21:15:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-23 21:15:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:15:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:15:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-23 21:15:37,310 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-23 21:15:37,310 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 21:15:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 21:15:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:15:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:15:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2023-11-23 21:15:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2023-11-23 21:15:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-23 21:15:37,311 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-23 21:15:37,311 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-23 21:15:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-23 21:15:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-23 21:15:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-23 21:15:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-23 21:15:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-23 21:15:37,312 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-23 21:15:37,312 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-23 21:15:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-23 21:15:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-23 21:15:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 21:15:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 21:15:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2023-11-23 21:15:37,313 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2023-11-23 21:15:37,313 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:15:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:15:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-23 21:15:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-23 21:15:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-23 21:15:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-23 21:15:37,314 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:15:37,314 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:15:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-23 21:15:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-23 21:15:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:15:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:15:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:15:37,315 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2023-11-23 21:15:37,315 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2023-11-23 21:15:37,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-23 21:15:37,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-23 21:15:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-23 21:15:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-23 21:15:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:15:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:15:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:15:37,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:15:37,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-23 21:15:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-23 21:15:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-23 21:15:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-23 21:15:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2023-11-23 21:15:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_disc_mutex_of_usb_serial [2023-11-23 21:15:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2023-11-23 21:15:37,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2023-11-23 21:15:37,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:15:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:15:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-23 21:15:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-23 21:15:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2023-11-23 21:15:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2023-11-23 21:15:37,322 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-23 21:15:37,322 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-23 21:15:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_table_lock [2023-11-23 21:15:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_table_lock [2023-11-23 21:15:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:15:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:15:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_table_lock [2023-11-23 21:15:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_table_lock [2023-11-23 21:15:37,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-23 21:15:37,323 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-23 21:15:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-23 21:15:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-23 21:15:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 21:15:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 21:15:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:15:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:15:37,324 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:15:37,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:15:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-23 21:15:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-23 21:15:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:15:37,325 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-23 21:15:37,325 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-23 21:15:38,515 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:15:38,526 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:15:39,091 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:15:52,626 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:15:54,612 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:15:54,613 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:15:54,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:54 BoogieIcfgContainer [2023-11-23 21:15:54,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:15:54,619 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:15:54,619 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:15:54,622 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:15:54,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:15:31" (1/3) ... [2023-11-23 21:15:54,623 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6794384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:54, skipping insertion in model container [2023-11-23 21:15:54,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:15:36" (2/3) ... [2023-11-23 21:15:54,624 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6794384 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:15:54, skipping insertion in model container [2023-11-23 21:15:54,624 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:15:54" (3/3) ... [2023-11-23 21:15:54,626 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-32_7a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:15:54,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:15:54,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:15:54,775 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:15:54,787 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1fe0a006, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:15:54,788 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:15:54,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 2101 states, 1325 states have (on average 1.359245283018868) internal successors, (1801), 1391 states have internal predecessors, (1801), 636 states have call successors, (636), 139 states have call predecessors, (636), 138 states have return successors, (625), 611 states have call predecessors, (625), 625 states have call successors, (625) [2023-11-23 21:15:54,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2023-11-23 21:15:54,845 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:15:54,846 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:15:54,848 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:15:54,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:15:54,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1837745451, now seen corresponding path program 1 times [2023-11-23 21:15:54,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:15:54,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023400245] [2023-11-23 21:15:54,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:15:54,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:15:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:15:56,815 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2023-11-23 21:15:56,816 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:15:56,816 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023400245] [2023-11-23 21:15:56,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023400245] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:15:56,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:15:56,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:15:56,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265861911] [2023-11-23 21:15:56,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:15:56,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:15:56,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:15:56,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:15:56,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:15:56,883 INFO L87 Difference]: Start difference. First operand has 2101 states, 1325 states have (on average 1.359245283018868) internal successors, (1801), 1391 states have internal predecessors, (1801), 636 states have call successors, (636), 139 states have call predecessors, (636), 138 states have return successors, (625), 611 states have call predecessors, (625), 625 states have call successors, (625) Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-11-23 21:15:59,040 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 [] [2023-11-23 21:16:01,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:03,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:06,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:08,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:10,756 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:12,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:16:12,542 INFO L93 Difference]: Finished difference Result 6175 states and 9265 transitions. [2023-11-23 21:16:12,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:16:12,547 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), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 207 [2023-11-23 21:16:12,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:16:12,628 INFO L225 Difference]: With dead ends: 6175 [2023-11-23 21:16:12,629 INFO L226 Difference]: Without dead ends: 4094 [2023-11-23 21:16:12,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:12,666 INFO L413 NwaCegarLoop]: 2806 mSDtfsCounter, 3025 mSDsluCounter, 2684 mSDsCounter, 0 mSdLazyCounter, 599 mSolverCounterSat, 4 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3025 SdHoareTripleChecker+Valid, 5490 SdHoareTripleChecker+Invalid, 608 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 599 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-23 21:16:12,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3025 Valid, 5490 Invalid, 608 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 599 Invalid, 5 Unknown, 0 Unchecked, 15.1s Time] [2023-11-23 21:16:12,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4094 states. [2023-11-23 21:16:13,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4094 to 4071. [2023-11-23 21:16:13,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4071 states, 2588 states have (on average 1.3504636785162287) internal successors, (3495), 2687 states have internal predecessors, (3495), 1208 states have call successors, (1208), 275 states have call predecessors, (1208), 274 states have return successors, (1276), 1170 states have call predecessors, (1276), 1199 states have call successors, (1276) [2023-11-23 21:16:13,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4071 states to 4071 states and 5979 transitions. [2023-11-23 21:16:13,083 INFO L78 Accepts]: Start accepts. Automaton has 4071 states and 5979 transitions. Word has length 207 [2023-11-23 21:16:13,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:16:13,088 INFO L495 AbstractCegarLoop]: Abstraction has 4071 states and 5979 transitions. [2023-11-23 21:16:13,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-11-23 21:16:13,088 INFO L276 IsEmpty]: Start isEmpty. Operand 4071 states and 5979 transitions. [2023-11-23 21:16:13,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-11-23 21:16:13,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:16:13,100 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 21:16:13,100 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:16:13,101 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:16:13,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:16:13,103 INFO L85 PathProgramCache]: Analyzing trace with hash 670859854, now seen corresponding path program 1 times [2023-11-23 21:16:13,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:16:13,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056126925] [2023-11-23 21:16:13,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:16:13,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:16:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:16:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2023-11-23 21:16:14,101 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:16:14,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056126925] [2023-11-23 21:16:14,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056126925] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:16:14,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:16:14,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:16:14,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553146494] [2023-11-23 21:16:14,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:16:14,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:16:14,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:16:14,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:16:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:16:14,106 INFO L87 Difference]: Start difference. First operand 4071 states and 5979 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2023-11-23 21:16:16,210 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:16:18,417 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 []