./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 30e01a73 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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 21:28:20,750 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 21:28:20,825 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 21:28:20,829 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 21:28:20,830 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 21:28:20,857 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 21:28:20,858 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 21:28:20,858 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 21:28:20,859 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 21:28:20,860 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 21:28:20,860 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 21:28:20,861 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 21:28:20,861 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 21:28:20,862 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 21:28:20,863 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 21:28:20,863 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 21:28:20,864 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 21:28:20,864 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 21:28:20,865 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 21:28:20,865 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 21:28:20,866 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 21:28:20,866 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 21:28:20,867 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 21:28:20,868 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 21:28:20,868 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 21:28:20,868 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 21:28:20,869 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 21:28:20,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 21:28:20,870 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 21:28:20,870 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 21:28:20,871 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 21:28:20,871 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 21:28:20,872 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 21:28:20,872 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 21:28:20,872 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:20,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 21:28:20,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 21:28:20,874 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 21:28:20,874 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 21:28:20,875 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 21:28:20,875 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 21:28:20,876 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 21:28:20,876 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 21:28:20,876 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 21:28:20,877 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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 267df3d840ee451a69f2c9c23fc4c286b307e31eb8c416518f7dce9b4c82858a [2023-11-23 21:28:21,186 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 21:28:21,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 21:28:21,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 21:28:21,226 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 21:28:21,227 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 21:28:21,228 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/../../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 [2023-11-23 21:28:24,333 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 21:28:25,046 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 21:28:25,047 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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 [2023-11-23 21:28:25,101 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/data/0a8ae143e/ac9f705161ab448e83c31ac02189f5a1/FLAG485d695ac [2023-11-23 21:28:25,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/data/0a8ae143e/ac9f705161ab448e83c31ac02189f5a1 [2023-11-23 21:28:25,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 21:28:25,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 21:28:25,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:25,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 21:28:25,143 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 21:28:25,144 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:25" (1/1) ... [2023-11-23 21:28:25,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47fc6170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:25, skipping insertion in model container [2023-11-23 21:28:25,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 09:28:25" (1/1) ... [2023-11-23 21:28:25,392 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 21:28:27,950 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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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] [2023-11-23 21:28:28,028 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:28,132 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 21:28:28,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3952] [2023-11-23 21:28:28,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [3954] [2023-11-23 21:28:28,250 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] [2023-11-23 21:28:28,252 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] [2023-11-23 21:28:28,253 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] [2023-11-23 21:28:28,253 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] [2023-11-23 21:28:28,253 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] [2023-11-23 21:28:28,254 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] [2023-11-23 21:28:28,678 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] [2023-11-23 21:28:28,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8086] [2023-11-23 21:28:28,679 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] [2023-11-23 21:28:28,680 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] [2023-11-23 21:28:28,681 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] [2023-11-23 21:28:28,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [8142] [2023-11-23 21:28:28,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8145] [2023-11-23 21:28:28,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8148] [2023-11-23 21:28:28,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [8151] [2023-11-23 21:28:28,814 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_5c3dba77-6e2a-46f1-82f2-c431d78184c8/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] [2023-11-23 21:28:28,827 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 21:28:29,078 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:29,078 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:29,078 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 21:28:29,086 INFO L206 MainTranslator]: Completed translation [2023-11-23 21:28:29,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29 WrapperNode [2023-11-23 21:28:29,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 21:28:29,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:29,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 21:28:29,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 21:28:29,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,226 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,561 INFO L138 Inliner]: procedures = 388, calls = 4014, calls flagged for inlining = 193, calls inlined = 190, statements flattened = 8080 [2023-11-23 21:28:29,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 21:28:29,563 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 21:28:29,563 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 21:28:29,563 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 21:28:29,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,807 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,887 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,938 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 21:28:29,941 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 21:28:29,941 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 21:28:29,942 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 21:28:29,944 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (1/1) ... [2023-11-23 21:28:29,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 21:28:29,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 21:28:29,978 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 21:28:30,019 INFO L130 BoogieDeclarations]: Found specification of procedure serial_proc_open [2023-11-23 21:28:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_proc_open [2023-11-23 21:28:30,024 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_throttle [2023-11-23 21:28:30,024 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_throttle [2023-11-23 21:28:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2023-11-23 21:28:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2023-11-23 21:28:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2023-11-23 21:28:30,025 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2023-11-23 21:28:30,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 21:28:30,026 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 21:28:30,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c3dba77-6e2a-46f1-82f2-c431d78184c8/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 21:28:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-23 21:28:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-23 21:28:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_dtr_rts [2023-11-23 21:28:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_dtr_rts [2023-11-23 21:28:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_remove [2023-11-23 21:28:30,032 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_remove [2023-11-23 21:28:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-11-23 21:28:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-11-23 21:28:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure serial_chars_in_buffer [2023-11-23 21:28:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_chars_in_buffer [2023-11-23 21:28:30,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 21:28:30,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 21:28:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2023-11-23 21:28:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2023-11-23 21:28:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_driver_5 [2023-11-23 21:28:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_driver_5 [2023-11-23 21:28:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_activate [2023-11-23 21:28:30,034 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_activate [2023-11-23 21:28:30,034 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit_unlock [2023-11-23 21:28:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit_unlock [2023-11-23 21:28:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure activate_work_1 [2023-11-23 21:28:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_work_1 [2023-11-23 21:28:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_get_interface [2023-11-23 21:28:30,035 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_get_interface [2023-11-23 21:28:30,035 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister_drivers [2023-11-23 21:28:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister_drivers [2023-11-23 21:28:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_store_new_id [2023-11-23 21:28:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_store_new_id [2023-11-23 21:28:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-23 21:28:30,036 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-23 21:28:30,036 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_work [2023-11-23 21:28:30,037 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_work [2023-11-23 21:28:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2023-11-23 21:28:30,038 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2023-11-23 21:28:30,038 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_poison_urbs [2023-11-23 21:28:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_poison_urbs [2023-11-23 21:28:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure serial_hangup [2023-11-23 21:28:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_hangup [2023-11-23 21:28:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure serial_ioctl [2023-11-23 21:28:30,039 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_ioctl [2023-11-23 21:28:30,039 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write_room [2023-11-23 21:28:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write_room [2023-11-23 21:28:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:28:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~VOID [2023-11-23 21:28:30,040 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-23 21:28:30,040 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-23 21:28:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-23 21:28:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_unpoison_urb [2023-11-23 21:28:30,041 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_unpoison_urb [2023-11-23 21:28:30,041 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_probe [2023-11-23 21:28:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_probe [2023-11-23 21:28:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-23 21:28:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure serial_get_icount [2023-11-23 21:28:30,042 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_get_icount [2023-11-23 21:28:30,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 21:28:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 21:28:30,043 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-23 21:28:30,043 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-23 21:28:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urb [2023-11-23 21:28:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urb [2023-11-23 21:28:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 21:28:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-11-23 21:28:30,044 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-11-23 21:28:30,044 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-23 21:28:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-23 21:28:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure serial_cleanup [2023-11-23 21:28:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_cleanup [2023-11-23 21:28:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-23 21:28:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-23 21:28:30,045 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_carrier_raised [2023-11-23 21:28:30,045 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_carrier_raised [2023-11-23 21:28:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure __kfifo_uint_must_check_helper [2023-11-23 21:28:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __kfifo_uint_must_check_helper [2023-11-23 21:28:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-11-23 21:28:30,046 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-11-23 21:28:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 21:28:30,046 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_probe [2023-11-23 21:28:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_probe [2023-11-23 21:28:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-23 21:28:30,047 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-23 21:28:30,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 21:28:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 21:28:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 21:28:30,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_reset_resume [2023-11-23 21:28:30,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_reset_resume [2023-11-23 21:28:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_read_bulk_callback [2023-11-23 21:28:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_read_bulk_callback [2023-11-23 21:28:30,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface [2023-11-23 21:28:30,049 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface [2023-11-23 21:28:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 21:28:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 21:28:30,050 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 21:28:30,050 INFO L130 BoogieDeclarations]: Found specification of procedure serial_port_shutdown [2023-11-23 21:28:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_port_shutdown [2023-11-23 21:28:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-23 21:28:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~pm_message_t~0~TO~int [2023-11-23 21:28:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 21:28:30,051 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 21:28:30,051 INFO L130 BoogieDeclarations]: Found specification of procedure kref_put [2023-11-23 21:28:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_put [2023-11-23 21:28:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure __read_once_size [2023-11-23 21:28:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __read_once_size [2023-11-23 21:28:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-23 21:28:30,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-23 21:28:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 21:28:30,052 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 21:28:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 21:28:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 21:28:30,053 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:28:30,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-23 21:28:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:28:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 21:28:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_driver [2023-11-23 21:28:30,054 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_driver [2023-11-23 21:28:30,054 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 21:28:30,055 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 21:28:30,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_put [2023-11-23 21:28:30,057 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_put [2023-11-23 21:28:30,059 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-23 21:28:30,059 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-23 21:28:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure destroy_serial [2023-11-23 21:28:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure destroy_serial [2023-11-23 21:28:30,060 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-23 21:28:30,060 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-23 21:28:30,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 21:28:30,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 21:28:30,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_out [2023-11-23 21:28:30,068 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_out [2023-11-23 21:28:30,068 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-23 21:28:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-23 21:28:30,069 INFO L130 BoogieDeclarations]: Found specification of procedure serial_break [2023-11-23 21:28:30,069 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_break [2023-11-23 21:28:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write_start [2023-11-23 21:28:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write_start [2023-11-23 21:28:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 21:28:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 21:28:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:28:30,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-11-23 21:28:30,070 INFO L130 BoogieDeclarations]: Found specification of procedure kref_sub [2023-11-23 21:28:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure kref_sub [2023-11-23 21:28:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure usb_translate_errors [2023-11-23 21:28:30,071 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_translate_errors [2023-11-23 21:28:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 21:28:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 21:28:30,071 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 21:28:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 21:28:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_show [2023-11-23 21:28:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_show [2023-11-23 21:28:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_write [2023-11-23 21:28:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_write [2023-11-23 21:28:30,072 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-23 21:28:30,072 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-23 21:28:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-23 21:28:30,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-23 21:28:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-11-23 21:28:30,073 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-11-23 21:28:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 21:28:30,073 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 21:28:30,073 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_bulk_urb [2023-11-23 21:28:30,073 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_bulk_urb [2023-11-23 21:28:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-23 21:28:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-23 21:28:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_release_4 [2023-11-23 21:28:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_release_4 [2023-11-23 21:28:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_suspend [2023-11-23 21:28:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_suspend [2023-11-23 21:28:30,074 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_msr_changed [2023-11-23 21:28:30,074 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_msr_changed [2023-11-23 21:28:30,075 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_is_int_in [2023-11-23 21:28:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_is_int_in [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 21:28:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure new_id_store [2023-11-23 21:28:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure new_id_store [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_debug_data [2023-11-23 21:28:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_debug_data [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-11-23 21:28:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure serial_unthrottle [2023-11-23 21:28:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_unthrottle [2023-11-23 21:28:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_submit_read_urbs [2023-11-23 21:28:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_submit_read_urbs [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:28:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure serial_throttle [2023-11-23 21:28:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_throttle [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 21:28:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 21:28:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:28:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~$Pointer$~X~int~TO~int [2023-11-23 21:28:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_deregister [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_deregister [2023-11-23 21:28:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 21:28:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_resume [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_resume [2023-11-23 21:28:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work_on [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work_on [2023-11-23 21:28:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-23 21:28:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 21:28:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_softint [2023-11-23 21:28:30,171 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_softint [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmget [2023-11-23 21:28:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmget [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2023-11-23 21:28:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2023-11-23 21:28:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure bus_unregister [2023-11-23 21:28:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure bus_unregister [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_poison_urb [2023-11-23 21:28:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_poison_urb [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister [2023-11-23 21:28:30,172 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister [2023-11-23 21:28:30,172 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-23 21:28:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure serial_wait_until_sent [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_wait_until_sent [2023-11-23 21:28:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 21:28:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_device_match [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_device_match [2023-11-23 21:28:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure serial_open [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_open [2023-11-23 21:28:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-23 21:28:30,173 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-23 21:28:30,173 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 21:28:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure serial_set_termios [2023-11-23 21:28:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_set_termios [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_resume [2023-11-23 21:28:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_resume [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure single_release [2023-11-23 21:28:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure single_release [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-11-23 21:28:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-11-23 21:28:30,174 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 21:28:30,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_disconnect [2023-11-23 21:28:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_disconnect [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_generic_unthrottle [2023-11-23 21:28:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_generic_unthrottle [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_port_get_by_minor [2023-11-23 21:28:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_port_get_by_minor [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2023-11-23 21:28:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure serial_install [2023-11-23 21:28:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_install [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_handle_sysrq_char [2023-11-23 21:28:30,175 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_handle_sysrq_char [2023-11-23 21:28:30,175 INFO L130 BoogieDeclarations]: Found specification of procedure serial_tiocmset [2023-11-23 21:28:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_tiocmset [2023-11-23 21:28:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-11-23 21:28:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-11-23 21:28:30,176 INFO L130 BoogieDeclarations]: Found specification of procedure usb_serial_unpoison_port_urbs [2023-11-23 21:28:30,176 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_serial_unpoison_port_urbs [2023-11-23 21:28:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure serial_write [2023-11-23 21:28:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure serial_write [2023-11-23 21:28:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure idr_remove [2023-11-23 21:28:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure idr_remove [2023-11-23 21:28:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-11-23 21:28:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-11-23 21:28:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:28:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-11-23 21:28:30,181 INFO L130 BoogieDeclarations]: Found specification of procedure get_iface_id [2023-11-23 21:28:30,181 INFO L138 BoogieDeclarations]: Found implementation of procedure get_iface_id [2023-11-23 21:28:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 21:28:30,182 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-23 21:28:30,182 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-23 21:28:31,198 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 21:28:31,207 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 21:28:31,738 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 21:28:44,271 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 21:28:46,427 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 21:28:46,427 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-23 21:28:46,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:46 BoogieIcfgContainer [2023-11-23 21:28:46,430 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 21:28:46,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 21:28:46,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 21:28:46,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 21:28:46,438 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 09:28:25" (1/3) ... [2023-11-23 21:28:46,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9fadf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:46, skipping insertion in model container [2023-11-23 21:28:46,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 09:28:29" (2/3) ... [2023-11-23 21:28:46,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b9fadf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 09:28:46, skipping insertion in model container [2023-11-23 21:28:46,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 09:28:46" (3/3) ... [2023-11-23 21:28:46,444 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--usb--serial--usbserial.ko-entry_point.cil.out.i [2023-11-23 21:28:46,465 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 21:28:46,465 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 21:28:46,582 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 21:28:46,591 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;@19e2cbb7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 21:28:46,592 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 21:28:46,606 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) [2023-11-23 21:28:46,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2023-11-23 21:28:46,675 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:28:46,677 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] [2023-11-23 21:28:46,677 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:28:46,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:28:46,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1585634870, now seen corresponding path program 1 times [2023-11-23 21:28:46,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:28:46,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23530243] [2023-11-23 21:28:46,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:28:46,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:28:47,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:28:48,563 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 21:28:48,564 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:28:48,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23530243] [2023-11-23 21:28:48,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23530243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:28:48,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:28:48,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:28:48,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003866831] [2023-11-23 21:28:48,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:28:48,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:28:48,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:28:48,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:28:48,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:28:48,624 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) [2023-11-23 21:28:50,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:53,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:28:58,486 WARN L539 Checker$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 21:29:00,496 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 21:29:02,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 21:29:02,805 INFO L93 Difference]: Finished difference Result 5715 states and 8396 transitions. [2023-11-23 21:29:02,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 21:29:02,808 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 [2023-11-23 21:29:02,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 21:29:02,863 INFO L225 Difference]: With dead ends: 5715 [2023-11-23 21:29:02,863 INFO L226 Difference]: Without dead ends: 3688 [2023-11-23 21:29:02,881 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 21:29:02,885 INFO L413 NwaCegarLoop]: 2767 mSDtfsCounter, 2431 mSDsluCounter, 2611 mSDsCounter, 0 mSdLazyCounter, 575 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.5s 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, 13.8s IncrementalHoareTripleChecker+Time [2023-11-23 21:29:02,886 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2431 Valid, 5378 Invalid, 581 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 575 Invalid, 4 Unknown, 0 Unchecked, 13.8s Time] [2023-11-23 21:29:02,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2023-11-23 21:29:03,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3682. [2023-11-23 21:29:03,300 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) [2023-11-23 21:29:03,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3682 states to 3682 states and 5329 transitions. [2023-11-23 21:29:03,347 INFO L78 Accepts]: Start accepts. Automaton has 3682 states and 5329 transitions. Word has length 228 [2023-11-23 21:29:03,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 21:29:03,355 INFO L495 AbstractCegarLoop]: Abstraction has 3682 states and 5329 transitions. [2023-11-23 21:29:03,355 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) [2023-11-23 21:29:03,355 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5329 transitions. [2023-11-23 21:29:03,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-11-23 21:29:03,378 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 21:29:03,378 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] [2023-11-23 21:29:03,379 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 21:29:03,379 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 21:29:03,380 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 21:29:03,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1997788354, now seen corresponding path program 1 times [2023-11-23 21:29:03,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 21:29:03,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165970320] [2023-11-23 21:29:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 21:29:03,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 21:29:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 21:29:04,438 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 21:29:04,439 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 21:29:04,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165970320] [2023-11-23 21:29:04,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165970320] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 21:29:04,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 21:29:04,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 21:29:04,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806743617] [2023-11-23 21:29:04,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 21:29:04,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 21:29:04,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 21:29:04,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 21:29:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 21:29:04,447 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) [2023-11-23 21:29:06,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:09,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 21:29:11,973 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.44s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []