./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:55:51,801 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:55:51,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:55:51,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:55:51,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:55:51,940 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:55:51,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:55:51,942 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:55:51,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:55:51,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:55:51,944 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:55:51,945 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:55:51,946 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:55:51,947 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:55:51,947 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:55:51,948 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:55:51,949 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:55:51,950 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:55:51,950 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:55:51,951 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:55:51,952 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:55:51,953 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:55:51,954 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:55:51,955 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:55:51,956 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:55:51,956 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:55:51,957 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:55:51,958 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:55:51,959 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:55:51,962 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:55:51,964 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:55:51,965 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:55:51,965 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:55:51,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:55:51,966 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:55:51,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:55:51,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:55:51,967 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:55:51,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:55:51,968 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:55:51,968 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:55:51,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:55:51,969 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_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a [2023-11-19 04:55:52,279 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:55:52,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:55:52,313 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:55:52,315 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:55:52,316 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:55:52,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-19 04:55:55,962 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:55:56,800 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:55:56,802 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-19 04:55:56,850 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/data/ecbeeb783/c3691251181b4c44b6443932fcbc155c/FLAGbe4105e87 [2023-11-19 04:55:56,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/data/ecbeeb783/c3691251181b4c44b6443932fcbc155c [2023-11-19 04:55:56,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:55:56,875 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:55:56,878 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:55:56,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:55:56,885 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:55:56,885 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:56" (1/1) ... [2023-11-19 04:55:56,887 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9b200f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:55:56, skipping insertion in model container [2023-11-19 04:55:56,887 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:55:56" (1/1) ... [2023-11-19 04:55:57,079 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:56:00,493 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_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2023-11-19 04:56:00,610 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:00,727 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:56:00,856 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3952] [2023-11-19 04:56:00,859 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3954] [2023-11-19 04:56:00,860 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"); [3964] [2023-11-19 04:56:00,861 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"); [4008-4009] [2023-11-19 04:56:00,862 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"); [4020-4021] [2023-11-19 04:56:00,863 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"); [4024-4025] [2023-11-19 04:56:00,863 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"); [4028-4029] [2023-11-19 04:56:00,864 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"); [4032-4033] [2023-11-19 04:56:01,245 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)); [8079] [2023-11-19 04:56:01,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8086] [2023-11-19 04:56:01,246 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"); [8095-8096] [2023-11-19 04:56:01,247 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"); [8112-8113] [2023-11-19 04:56:01,248 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)); [8127-8128] [2023-11-19 04:56:01,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [8142] [2023-11-19 04:56:01,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8145] [2023-11-19 04:56:01,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8148] [2023-11-19 04:56:01,251 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8151] [2023-11-19 04:56:01,356 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_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i[313744,313757] [2023-11-19 04:56:01,369 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:56:01,656 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:56:01,657 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:56:01,657 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:56:01,667 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:56:01,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01 WrapperNode [2023-11-19 04:56:01,669 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:56:01,671 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:01,671 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:56:01,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:56:01,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:01,849 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,177 INFO L138 Inliner]: procedures = 388, calls = 4014, calls flagged for inlining = 193, calls inlined = 190, statements flattened = 8080 [2023-11-19 04:56:02,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:56:02,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:56:02,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:56:02,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:56:02,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,276 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,567 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,614 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,676 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,724 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:56:02,725 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:56:02,725 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:56:02,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:56:02,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (1/1) ... [2023-11-19 04:56:02,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:56:02,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:56:02,771 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:56:02,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e77f2a5-b2c8-40a8-b3f0-ff80fae64267/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:56:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-19 04:56:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-19 04:56:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-19 04:56:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-19 04:56:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2023-11-19 04:56:02,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2023-11-19 04:56:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-19 04:56:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-19 04:56:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:56:02,911 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:56:02,911 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 04:56:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 04:56:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-19 04:56:02,912 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-19 04:56:02,912 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-19 04:56:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-19 04:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-19 04:56:02,913 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-19 04:56:02,913 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-19 04:56:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-19 04:56:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:56:02,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:56:02,914 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-19 04:56:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-19 04:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2023-11-19 04:56:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2023-11-19 04:56:02,915 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-19 04:56:02,915 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-19 04:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-19 04:56:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-19 04:56:02,916 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-19 04:56:02,916 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-19 04:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-11-19 04:56:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-11-19 04:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2023-11-19 04:56:02,917 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2023-11-19 04:56:02,917 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-19 04:56:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-19 04:56:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 04:56:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 04:56:02,918 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2023-11-19 04:56:02,918 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2023-11-19 04:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-19 04:56:02,919 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-19 04:56:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-19 04:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-19 04:56:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-19 04:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-19 04:56:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-19 04:56:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-19 04:56:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-19 04:56:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-19 04:56:02,921 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 04:56:02,921 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-19 04:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 04:56:02,922 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 04:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:56:02,922 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-19 04:56:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-19 04:56:02,923 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-19 04:56:02,923 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-19 04:56:02,923 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 04:56:02,923 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-19 04:56:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-19 04:56:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:56:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:56:02,924 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 04:56:02,924 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 04:56:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-19 04:56:02,925 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-19 04:56:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:56:02,925 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-19 04:56:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-19 04:56:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-19 04:56:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-19 04:56:02,926 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-19 04:56:02,926 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-19 04:56:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 04:56:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 04:56:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-19 04:56:02,927 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-19 04:56:02,927 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-19 04:56:02,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-19 04:56:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-19 04:56:02,928 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-19 04:56:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:56:02,928 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-19 04:56:02,929 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-19 04:56:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 04:56:02,929 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 04:56:02,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:56:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-19 04:56:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-19 04:56:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-19 04:56:02,930 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-19 04:56:02,930 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-19 04:56:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-19 04:56:02,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-11-19 04:56:02,931 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-11-19 04:56:02,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:56:02,931 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 04:56:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 04:56:02,932 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-19 04:56:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-19 04:56:02,932 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-19 04:56:02,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-19 04:56:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 04:56:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 04:56:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-19 04:56:02,933 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-19 04:56:02,933 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-19 04:56:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-19 04:56:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-19 04:56:02,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-19 04:56:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:56:02,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:56:02,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:56:02,935 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:56:02,935 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:56:02,935 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:56:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:56:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:56:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-19 04:56:02,936 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-19 04:56:02,936 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-19 04:56:02,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-19 04:56:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-19 04:56:02,937 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-19 04:56:02,937 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:56:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:56:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-19 04:56:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-19 04:56:02,938 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 04:56:02,938 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 04:56:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:56:02,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:56:02,939 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-19 04:56:02,939 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-19 04:56:02,940 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 04:56:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 04:56:02,940 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-19 04:56:02,940 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-19 04:56:02,940 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-19 04:56:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-19 04:56:02,941 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-19 04:56:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-19 04:56:02,941 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-19 04:56:02,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-19 04:56:02,942 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-19 04:56:02,942 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-19 04:56:02,942 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-19 04:56:02,942 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-19 04:56:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:56:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:56:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:56:02,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:56:02,943 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2023-11-19 04:56:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2023-11-19 04:56:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-19 04:56:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-19 04:56:02,944 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 04:56:02,944 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 04:56:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-19 04:56:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-19 04:56:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-19 04:56:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-19 04:56:02,945 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 04:56:02,945 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 04:56:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-19 04:56:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-19 04:56:02,946 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 04:56:02,946 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 04:56:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-11-19 04:56:02,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-11-19 04:56:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-19 04:56:02,947 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-19 04:56:02,947 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2023-11-19 04:56:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2023-11-19 04:56:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-19 04:56:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-19 04:56:02,948 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 04:56:02,948 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 04:56:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2023-11-19 04:56:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2023-11-19 04:56:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-19 04:56:02,949 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-19 04:56:02,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:56:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-19 04:56:02,950 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-19 04:56:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-19 04:56:02,950 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-19 04:56:02,950 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-19 04:56:02,951 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-19 04:56:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:56:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 04:56:02,951 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 04:56:02,951 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-19 04:56:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-19 04:56:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:56:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:56:02,952 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:56:02,952 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 04:56:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 04:56:02,953 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 04:56:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-19 04:56:02,953 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-19 04:56:02,953 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-19 04:56:02,954 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-19 04:56:02,954 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-19 04:56:02,954 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-19 04:56:02,954 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-19 04:56:02,954 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-19 04:56:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-19 04:56:02,955 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 04:56:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 04:56:02,955 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 04:56:02,955 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 04:56:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2023-11-19 04:56:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2023-11-19 04:56:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-19 04:56:02,956 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-19 04:56:02,956 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-19 04:56:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-19 04:56:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-19 04:56:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-19 04:56:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-19 04:56:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-19 04:56:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-19 04:56:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-19 04:56:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-19 04:56:02,958 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-19 04:56:02,958 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 04:56:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 04:56:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2023-11-19 04:56:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2023-11-19 04:56:02,959 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 04:56:02,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 04:56:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-19 04:56:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-19 04:56:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-19 04:56:02,960 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-19 04:56:02,960 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 04:56:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 04:56:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-19 04:56:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-19 04:56:02,961 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 04:56:02,961 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 04:56:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:56:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2023-11-19 04:56:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2023-11-19 04:56:02,962 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-19 04:56:02,962 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-19 04:56:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-19 04:56:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-19 04:56:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-19 04:56:02,963 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-19 04:56:02,963 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:56:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:56:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-19 04:56:02,964 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-19 04:56:02,964 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-19 04:56:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-19 04:56:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2023-11-19 04:56:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2023-11-19 04:56:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-19 04:56:02,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-19 04:56:02,965 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-19 04:56:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-19 04:56:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2023-11-19 04:56:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2023-11-19 04:56:02,966 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-19 04:56:02,966 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-19 04:56:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-19 04:56:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-19 04:56:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-19 04:56:02,967 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-19 04:56:02,967 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-19 04:56:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-19 04:56:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-19 04:56:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-19 04:56:02,968 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-19 04:56:02,968 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-19 04:56:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 04:56:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-19 04:56:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-19 04:56:02,969 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-19 04:56:02,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:56:02,970 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-19 04:56:02,970 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-19 04:56:03,999 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:56:04,008 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:56:04,786 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:56:19,064 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:56:21,401 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:56:21,402 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 04:56:21,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:21 BoogieIcfgContainer [2023-11-19 04:56:21,427 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:56:21,432 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:56:21,433 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:56:21,437 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:56:21,437 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:55:56" (1/3) ... [2023-11-19 04:56:21,438 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c554fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:21, skipping insertion in model container [2023-11-19 04:56:21,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:56:01" (2/3) ... [2023-11-19 04:56:21,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49c554fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:56:21, skipping insertion in model container [2023-11-19 04:56:21,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:56:21" (3/3) ... [2023-11-19 04:56:21,443 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-19 04:56:21,469 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:56:21,469 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:56:21,613 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:56:21,627 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;@77087677, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:56:21,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:56:21,646 INFO L276 IsEmpty]: Start isEmpty. Operand has 2037 states, 1300 states have (on average 1.3615384615384616) internal successors, (1770), 1360 states have internal predecessors, (1770), 601 states have call successors, (601), 135 states have call predecessors, (601), 134 states have return successors, (590), 576 states have call predecessors, (590), 590 states have call successors, (590) [2023-11-19 04:56:21,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-19 04:56:21,724 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:21,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:21,726 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:56:21,735 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:21,735 INFO L85 PathProgramCache]: Analyzing trace with hash 1666524650, now seen corresponding path program 1 times [2023-11-19 04:56:21,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:21,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696378267] [2023-11-19 04:56:21,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:21,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:22,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:24,058 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2023-11-19 04:56:24,059 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:24,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696378267] [2023-11-19 04:56:24,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696378267] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:24,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:24,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:24,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010356295] [2023-11-19 04:56:24,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:24,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:24,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:24,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:24,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:24,130 INFO L87 Difference]: Start difference. First operand has 2037 states, 1300 states have (on average 1.3615384615384616) internal successors, (1770), 1360 states have internal predecessors, (1770), 601 states have call successors, (601), 135 states have call predecessors, (601), 134 states have return successors, (590), 576 states have call predecessors, (590), 590 states have call successors, (590) Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-19 04:56:26,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:28,780 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:30,088 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:34,382 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:36,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:38,504 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 04:56:39,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:56:39,208 INFO L93 Difference]: Finished difference Result 5715 states and 8396 transitions. [2023-11-19 04:56:39,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:56:39,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 228 [2023-11-19 04:56:39,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:56:39,276 INFO L225 Difference]: With dead ends: 5715 [2023-11-19 04:56:39,276 INFO L226 Difference]: Without dead ends: 3688 [2023-11-19 04:56:39,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:39,302 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2431 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2431 SdHoareTripleChecker+Valid, 5378 SdHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 575 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:56:39,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 5378 Invalid, 581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 575 Invalid, 4 Unknown, 0 Unchecked, 14.6s Time] [2023-11-19 04:56:39,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2023-11-19 04:56:39,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3682. [2023-11-19 04:56:39,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3682 states, 2375 states have (on average 1.3545263157894736) internal successors, (3217), 2455 states have internal predecessors, (3217), 1051 states have call successors, (1051), 256 states have call predecessors, (1051), 255 states have return successors, (1061), 1021 states have call predecessors, (1061), 1049 states have call successors, (1061) [2023-11-19 04:56:39,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 5329 transitions. [2023-11-19 04:56:39,747 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 5329 transitions. Word has length 228 [2023-11-19 04:56:39,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:56:39,755 INFO L495 AbstractCegarLoop]: Abstraction has 3682 states and 5329 transitions. [2023-11-19 04:56:39,756 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2023-11-19 04:56:39,756 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5329 transitions. [2023-11-19 04:56:39,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-19 04:56:39,782 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:56:39,783 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:56:39,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:56:39,783 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:56:39,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:56:39,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1138355809, now seen corresponding path program 1 times [2023-11-19 04:56:39,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:56:39,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707427636] [2023-11-19 04:56:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:56:39,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:56:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:56:41,180 INFO L134 CoverageAnalysis]: Checked inductivity of 748 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2023-11-19 04:56:41,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:56:41,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707427636] [2023-11-19 04:56:41,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707427636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:56:41,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:56:41,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:56:41,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567582142] [2023-11-19 04:56:41,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:56:41,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:56:41,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:56:41,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:56:41,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:56:41,189 INFO L87 Difference]: Start difference. First operand 3682 states and 5329 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31)