./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/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_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/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_3080a817-d00d-4efe-9526-64de7c33793a/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 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 05:22:48,494 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 05:22:48,616 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 05:22:48,626 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 05:22:48,627 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 05:22:48,665 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 05:22:48,666 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 05:22:48,667 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 05:22:48,668 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 05:22:48,673 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 05:22:48,673 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 05:22:48,674 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 05:22:48,674 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 05:22:48,676 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 05:22:48,677 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 05:22:48,677 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 05:22:48,678 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 05:22:48,678 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 05:22:48,679 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 05:22:48,679 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 05:22:48,680 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 05:22:48,680 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 05:22:48,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 05:22:48,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 05:22:48,683 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 05:22:48,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 05:22:48,684 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 05:22:48,684 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 05:22:48,685 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 05:22:48,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 05:22:48,686 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 05:22:48,687 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 05:22:48,687 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 05:22:48,688 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:48,688 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 05:22:48,688 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 05:22:48,689 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 05:22:48,689 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 05:22:48,689 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 05:22:48,690 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 05:22:48,690 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 05:22:48,690 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 05:22:48,691 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_3080a817-d00d-4efe-9526-64de7c33793a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 73338d683e10a9827a18cf31e1247b64129367b1297cba22c91c243b4552d29d [2023-11-19 05:22:48,984 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 05:22:49,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 05:22:49,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 05:22:49,017 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 05:22:49,017 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 05:22:49,019 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-19 05:22:52,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 05:22:52,674 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 05:22:52,675 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-19 05:22:52,730 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/data/c7ca4de8e/9954c36dcd9b4f099c44b6e9acfdc451/FLAG861b54507 [2023-11-19 05:22:52,749 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/data/c7ca4de8e/9954c36dcd9b4f099c44b6e9acfdc451 [2023-11-19 05:22:52,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 05:22:52,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 05:22:52,760 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:52,760 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 05:22:52,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 05:22:52,766 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:52" (1/1) ... [2023-11-19 05:22:52,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4db0aa39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:52, skipping insertion in model container [2023-11-19 05:22:52,768 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:22:52" (1/1) ... [2023-11-19 05:22:52,943 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 05:22:54,037 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_3080a817-d00d-4efe-9526-64de7c33793a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2023-11-19 05:22:54,624 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:54,698 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 05:22:54,812 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"); [3569] [2023-11-19 05:22:54,814 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3576] [2023-11-19 05:22:54,815 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2,%1\n\tsbb %0,%0": "=r" (oldbit), "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3584-3585] [2023-11-19 05:22:54,817 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"); [3624-3625] [2023-11-19 05:22:54,817 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"); [3628-3629] [2023-11-19 05:22:54,818 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"); [3632-3633] [2023-11-19 05:22:54,818 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"); [3636-3637] [2023-11-19 05:22:54,863 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_3080a817-d00d-4efe-9526-64de7c33793a/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i[116401,116414] [2023-11-19 05:22:55,118 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 05:22:55,327 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:22:55,328 WARN L675 CHandler]: The function __xadd_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:22:55,328 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 05:22:55,336 INFO L206 MainTranslator]: Completed translation [2023-11-19 05:22:55,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55 WrapperNode [2023-11-19 05:22:55,337 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 05:22:55,338 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:55,338 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 05:22:55,339 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 05:22:55,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:55,452 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:55,685 INFO L138 Inliner]: procedures = 245, calls = 3626, calls flagged for inlining = 121, calls inlined = 121, statements flattened = 6981 [2023-11-19 05:22:55,685 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 05:22:55,686 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 05:22:55,686 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 05:22:55,686 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 05:22:55,695 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:55,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:55,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:55,766 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:56,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:56,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:56,100 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:56,124 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:56,164 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 05:22:56,165 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 05:22:56,166 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 05:22:56,166 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 05:22:56,167 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (1/1) ... [2023-11-19 05:22:56,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 05:22:56,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 05:22:56,199 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 05:22:56,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3080a817-d00d-4efe-9526-64de7c33793a/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 05:22:56,242 INFO L130 BoogieDeclarations]: Found specification of procedure acm_disconnect [2023-11-19 05:22:56,243 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_disconnect [2023-11-19 05:22:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_hangup [2023-11-19 05:22:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_hangup [2023-11-19 05:22:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_bulk_urb_18 [2023-11-19 05:22:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_bulk_urb_18 [2023-11-19 05:22:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 05:22:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 05:22:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 05:22:56,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 05:22:56,318 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_destruct [2023-11-19 05:22:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_destruct [2023-11-19 05:22:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_int [2023-11-19 05:22:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_int [2023-11-19 05:22:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-19 05:22:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-19 05:22:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_22 [2023-11-19 05:22:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_22 [2023-11-19 05:22:56,319 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_cleanup [2023-11-19 05:22:56,319 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_cleanup [2023-11-19 05:22:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 05:22:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 05:22:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_maxp [2023-11-19 05:22:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_maxp [2023-11-19 05:22:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-19 05:22:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-19 05:22:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_buffers_free [2023-11-19 05:22:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_buffers_free [2023-11-19 05:22:56,320 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-19 05:22:56,320 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-19 05:22:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-19 05:22:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-19 05:22:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_dir_in [2023-11-19 05:22:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_dir_in [2023-11-19 05:22:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2023-11-19 05:22:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2023-11-19 05:22:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 05:22:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 05:22:56,321 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 05:22:56,321 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 05:22:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-19 05:22:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-19 05:22:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-19 05:22:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-19 05:22:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_put [2023-11-19 05:22:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_put [2023-11-19 05:22:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_chars_in_buffer [2023-11-19 05:22:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_chars_in_buffer [2023-11-19 05:22:56,322 INFO L130 BoogieDeclarations]: Found specification of procedure acm_resume [2023-11-19 05:22:56,322 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_resume [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_msg [2023-11-19 05:22:56,323 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_msg [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_coherent [2023-11-19 05:22:56,323 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_coherent [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 05:22:56,323 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_hangup [2023-11-19 05:22:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_hangup [2023-11-19 05:22:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ifnum_to_if [2023-11-19 05:22:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ifnum_to_if [2023-11-19 05:22:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure __xadd_wrong_size [2023-11-19 05:22:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-19 05:22:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-19 05:22:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_interface [2023-11-19 05:22:56,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_interface [2023-11-19 05:22:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 05:22:56,324 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 05:22:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-11-19 05:22:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-11-19 05:22:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-19 05:22:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-19 05:22:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2023-11-19 05:22:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2023-11-19 05:22:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-19 05:22:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-19 05:22:56,325 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-19 05:22:56,325 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-19 05:22:56,329 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-19 05:22:56,329 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-19 05:22:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmget [2023-11-19 05:22:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmget [2023-11-19 05:22:56,330 INFO L130 BoogieDeclarations]: Found specification of procedure acm_port_shutdown [2023-11-19 05:22:56,330 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_port_shutdown [2023-11-19 05:22:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_put_interface [2023-11-19 05:22:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_put_interface [2023-11-19 05:22:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_set_termios [2023-11-19 05:22:56,331 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_set_termios [2023-11-19 05:22:56,331 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 05:22:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-19 05:22:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-19 05:22:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-19 05:22:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-19 05:22:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_break_ctl [2023-11-19 05:22:56,332 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_break_ctl [2023-11-19 05:22:56,332 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2023-11-19 05:22:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2023-11-19 05:22:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 05:22:56,333 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_7 [2023-11-19 05:22:56,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_7 [2023-11-19 05:22:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_6 [2023-11-19 05:22:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_6 [2023-11-19 05:22:56,334 INFO L130 BoogieDeclarations]: Found specification of procedure usb_mark_last_busy [2023-11-19 05:22:56,334 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_mark_last_busy [2023-11-19 05:22:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 05:22:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure acm_start_wb [2023-11-19 05:22:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_start_wb [2023-11-19 05:22:56,335 INFO L130 BoogieDeclarations]: Found specification of procedure usb_endpoint_xfer_bulk [2023-11-19 05:22:56,335 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_endpoint_xfer_bulk [2023-11-19 05:22:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 05:22:56,336 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 05:22:56,336 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-19 05:22:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-19 05:22:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_throttle [2023-11-19 05:22:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_throttle [2023-11-19 05:22:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure acm_wb_is_avail [2023-11-19 05:22:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_wb_is_avail [2023-11-19 05:22:56,337 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2023-11-19 05:22:56,337 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2023-11-19 05:22:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-19 05:22:56,338 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-19 05:22:56,338 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_write_room [2023-11-19 05:22:56,338 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_write_room [2023-11-19 05:22:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urb [2023-11-19 05:22:56,339 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urb [2023-11-19 05:22:56,339 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-19 05:22:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-19 05:22:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 05:22:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure acm_write_done [2023-11-19 05:22:56,340 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_write_done [2023-11-19 05:22:56,340 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-19 05:22:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-19 05:22:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_ioctl [2023-11-19 05:22:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_ioctl [2023-11-19 05:22:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure acm_release_minor [2023-11-19 05:22:56,341 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_release_minor [2023-11-19 05:22:56,341 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2023-11-19 05:22:56,342 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2023-11-19 05:22:56,343 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 05:22:56,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 05:22:56,347 INFO L130 BoogieDeclarations]: Found specification of procedure usb_autopm_put_interface_async [2023-11-19 05:22:56,347 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_autopm_put_interface_async [2023-11-19 05:22:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_unthrottle [2023-11-19 05:22:56,348 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_unthrottle [2023-11-19 05:22:56,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 05:22:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_3 [2023-11-19 05:22:56,349 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_3 [2023-11-19 05:22:56,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 05:22:56,353 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 05:22:56,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 05:22:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 05:22:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_17 [2023-11-19 05:22:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_17 [2023-11-19 05:22:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:22:56,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 05:22:56,354 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2023-11-19 05:22:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2023-11-19 05:22:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_coherent [2023-11-19 05:22:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_coherent [2023-11-19 05:22:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_buffers_free [2023-11-19 05:22:56,355 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_buffers_free [2023-11-19 05:22:56,355 INFO L130 BoogieDeclarations]: Found specification of procedure acm_ctrl_irq [2023-11-19 05:22:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_ctrl_irq [2023-11-19 05:22:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure acm_submit_read_urbs [2023-11-19 05:22:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_submit_read_urbs [2023-11-19 05:22:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_install [2023-11-19 05:22:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_install [2023-11-19 05:22:56,356 INFO L130 BoogieDeclarations]: Found specification of procedure stop_data_traffic [2023-11-19 05:22:56,356 INFO L138 BoogieDeclarations]: Found implementation of procedure stop_data_traffic [2023-11-19 05:22:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2023-11-19 05:22:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2023-11-19 05:22:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-19 05:22:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-19 05:22:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-19 05:22:56,357 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-19 05:22:56,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 05:22:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-19 05:22:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-19 05:22:56,358 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2023-11-19 05:22:56,358 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2023-11-19 05:22:56,359 INFO L130 BoogieDeclarations]: Found specification of procedure acm_tty_tiocmset [2023-11-19 05:22:56,359 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_tty_tiocmset [2023-11-19 05:22:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 05:22:56,360 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 05:22:56,360 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2023-11-19 05:22:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2023-11-19 05:22:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure acm_read_bulk_callback [2023-11-19 05:22:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure acm_read_bulk_callback [2023-11-19 05:22:56,361 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-19 05:22:56,361 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-19 05:22:57,095 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 05:22:57,108 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 05:22:57,452 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 05:22:58,411 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-19 05:23:08,493 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 05:23:10,454 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 05:23:10,454 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 05:23:10,471 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:10 BoogieIcfgContainer [2023-11-19 05:23:10,471 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 05:23:10,475 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 05:23:10,476 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 05:23:10,479 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 05:23:10,479 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:22:52" (1/3) ... [2023-11-19 05:23:10,481 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fc6a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:23:10, skipping insertion in model container [2023-11-19 05:23:10,481 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:22:55" (2/3) ... [2023-11-19 05:23:10,482 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65fc6a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:23:10, skipping insertion in model container [2023-11-19 05:23:10,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:23:10" (3/3) ... [2023-11-19 05:23:10,484 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--usb--class--cdc-acm.ko-entry_point.cil.out.i [2023-11-19 05:23:10,504 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 05:23:10,504 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 05:23:10,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 05:23:10,604 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;@2f7d6def, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 05:23:10,604 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 05:23:10,614 INFO L276 IsEmpty]: Start isEmpty. Operand has 1298 states, 815 states have (on average 1.3533742331288343) internal successors, (1103), 851 states have internal predecessors, (1103), 397 states have call successors, (397), 86 states have call predecessors, (397), 84 states have return successors, (386), 378 states have call predecessors, (386), 386 states have call successors, (386) [2023-11-19 05:23:10,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2023-11-19 05:23:10,653 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 05:23:10,654 INFO L195 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:23:10,655 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 05:23:10,666 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 05:23:10,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1258238693, now seen corresponding path program 1 times [2023-11-19 05:23:10,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 05:23:10,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475389928] [2023-11-19 05:23:10,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 05:23:10,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 05:23:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 05:23:13,282 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2023-11-19 05:23:13,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 05:23:13,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475389928] [2023-11-19 05:23:13,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475389928] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 05:23:13,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 05:23:13,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-19 05:23:13,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627567953] [2023-11-19 05:23:13,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 05:23:13,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-19 05:23:13,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 05:23:13,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-19 05:23:13,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-19 05:23:13,333 INFO L87 Difference]: Start difference. First operand has 1298 states, 815 states have (on average 1.3533742331288343) internal successors, (1103), 851 states have internal predecessors, (1103), 397 states have call successors, (397), 86 states have call predecessors, (397), 84 states have return successors, (386), 378 states have call predecessors, (386), 386 states have call successors, (386) Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 7 states have internal predecessors, (36), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2023-11-19 05:23:18,431 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 05:23:27,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:23:29,089 WARN L539 Checker$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 05:23:31,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:23:34,007 WARN L539 Checker$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 05:23:36,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:23:38,021 WARN L539 Checker$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 05:23:40,028 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-19 05:23:42,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []