./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--media--rc--imon.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 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_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5 --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 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 19:39:09,611 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 19:39:09,743 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-21 19:39:09,753 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 19:39:09,754 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 19:39:09,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 19:39:09,798 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 19:39:09,799 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 19:39:09,800 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 19:39:09,805 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 19:39:09,806 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-21 19:39:09,807 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-21 19:39:09,808 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-21 19:39:09,810 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-21 19:39:09,810 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-21 19:39:09,811 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-21 19:39:09,811 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-21 19:39:09,812 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-21 19:39:09,813 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-21 19:39:09,813 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-21 19:39:09,814 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-21 19:39:09,815 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-21 19:39:09,816 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 19:39:09,817 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 19:39:09,817 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 19:39:09,818 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 19:39:09,818 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 19:39:09,819 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 19:39:09,819 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 19:39:09,820 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 19:39:09,821 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 19:39:09,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 19:39:09,822 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 19:39:09,822 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 19:39:09,822 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:39:09,837 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 19:39:09,838 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 19:39:09,838 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 19:39:09,839 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-21 19:39:09,839 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 19:39:09,839 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 19:39:09,840 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 19:39:09,840 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-21 19:39:09,840 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 19:39:09,841 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_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1dadd209c6e3ebdaafa15f295f1ec8ec38d24c8a1f9b514f05808fa8c7c3e21c [2023-11-21 19:39:10,229 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 19:39:10,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 19:39:10,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 19:39:10,268 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 19:39:10,269 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 19:39:10,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/../../sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-21 19:39:13,540 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 19:39:14,247 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 19:39:14,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-21 19:39:14,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/data/836fc3fef/b8dbea98e6eb479fb794f63ecd1935ea/FLAGabade164a [2023-11-21 19:39:14,319 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/data/836fc3fef/b8dbea98e6eb479fb794f63ecd1935ea [2023-11-21 19:39:14,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 19:39:14,327 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 19:39:14,331 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 19:39:14,331 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 19:39:14,337 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 19:39:14,338 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:39:14" (1/1) ... [2023-11-21 19:39:14,339 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24fd5e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:14, skipping insertion in model container [2023-11-21 19:39:14,339 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 07:39:14" (1/1) ... [2023-11-21 19:39:14,483 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 19:39:15,860 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_d2eca120-c7ca-4cfd-bd43-712fa18be400/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2023-11-21 19:39:16,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:39:16,851 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 19:39:17,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [3743] [2023-11-21 19:39:17,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [3750] [2023-11-21 19:39:17,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3774] [2023-11-21 19:39:17,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3793] [2023-11-21 19:39:17,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3796] [2023-11-21 19:39:17,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3799] [2023-11-21 19:39:17,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3802] [2023-11-21 19:39:17,094 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_d2eca120-c7ca-4cfd-bd43-712fa18be400/sv-benchmarks/c/ldv-linux-3.12-rc1/linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i[117505,117518] [2023-11-21 19:39:17,129 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4544] [2023-11-21 19:39:17,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4548] [2023-11-21 19:39:17,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [4628-4629] [2023-11-21 19:39:17,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [4633-4634] [2023-11-21 19:39:17,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [4638-4639] [2023-11-21 19:39:17,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___8->state): : "memory", "cc"); [4643-4644] [2023-11-21 19:39:17,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5291] [2023-11-21 19:39:17,356 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 19:39:17,471 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:39:17,471 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 19:39:17,479 INFO L206 MainTranslator]: Completed translation [2023-11-21 19:39:17,480 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17 WrapperNode [2023-11-21 19:39:17,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 19:39:17,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 19:39:17,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 19:39:17,483 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 19:39:17,491 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:17,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:17,853 INFO L138 Inliner]: procedures = 229, calls = 2652, calls flagged for inlining = 103, calls inlined = 100, statements flattened = 5468 [2023-11-21 19:39:17,854 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 19:39:17,855 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 19:39:17,855 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 19:39:17,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 19:39:17,867 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:17,868 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:17,942 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:17,952 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:18,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:18,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:18,183 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:18,210 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:18,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 19:39:18,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 19:39:18,257 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 19:39:18,257 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 19:39:18,258 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (1/1) ... [2023-11-21 19:39:18,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 19:39:18,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/z3 [2023-11-21 19:39:18,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 19:39:18,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2eca120-c7ca-4cfd-bd43-712fa18be400/bin/utaipan-verify-QoSU8krkJ5/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 19:39:18,455 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2023-11-21 19:39:18,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2023-11-21 19:39:18,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-21 19:39:18,457 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-21 19:39:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-21 19:39:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 19:39:18,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 19:39:18,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 19:39:18,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 19:39:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_urb [2023-11-21 19:39:18,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_urb [2023-11-21 19:39:18,459 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_rel [2023-11-21 19:39:18,460 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_rel [2023-11-21 19:39:18,462 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_set_intfdata_26 [2023-11-21 19:39:18,462 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_set_intfdata_26 [2023-11-21 19:39:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 19:39:18,463 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 19:39:18,463 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-21 19:39:18,463 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-21 19:39:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 19:39:18,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 19:39:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_alloc_urb [2023-11-21 19:39:18,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_alloc_urb [2023-11-21 19:39:18,464 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-21 19:39:18,464 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-21 19:39:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-21 19:39:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-21 19:39:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 19:39:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 19:39:18,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 19:39:18,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 19:39:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-11-21 19:39:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-11-21 19:39:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-21 19:39:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-21 19:39:18,466 INFO L130 BoogieDeclarations]: Found specification of procedure rc_g_keycode_from_table [2023-11-21 19:39:18,466 INFO L138 BoogieDeclarations]: Found implementation of procedure rc_g_keycode_from_table [2023-11-21 19:39:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 19:39:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 19:39:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop___0 [2023-11-21 19:39:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop___0 [2023-11-21 19:39:18,467 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2023-11-21 19:39:18,467 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2023-11-21 19:39:18,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 19:39:18,468 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-21 19:39:18,468 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-21 19:39:18,469 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_10 [2023-11-21 19:39:18,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_10 [2023-11-21 19:39:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 19:39:18,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_submit_urb_11 [2023-11-21 19:39:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_submit_urb_11 [2023-11-21 19:39:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-21 19:39:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-21 19:39:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2023-11-21 19:39:18,471 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2023-11-21 19:39:18,471 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_get_dev [2023-11-21 19:39:18,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_get_dev [2023-11-21 19:39:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 19:39:18,473 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 19:39:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-21 19:39:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-21 19:39:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 19:39:18,474 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 19:39:18,474 INFO L130 BoogieDeclarations]: Found specification of procedure do_gettimeofday [2023-11-21 19:39:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure do_gettimeofday [2023-11-21 19:39:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 19:39:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 19:39:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 19:39:18,475 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 19:39:18,475 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2023-11-21 19:39:18,476 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2023-11-21 19:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-21 19:39:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-21 19:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-21 19:39:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-21 19:39:18,477 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf1 [2023-11-21 19:39:18,477 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf1 [2023-11-21 19:39:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure usb_rx_callback_intf0 [2023-11-21 19:39:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_rx_callback_intf0 [2023-11-21 19:39:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-21 19:39:18,478 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-21 19:39:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 19:39:18,478 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-21 19:39:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-21 19:39:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-21 19:39:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-21 19:39:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-21 19:39:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-21 19:39:18,479 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-21 19:39:18,479 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-21 19:39:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 19:39:18,480 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 19:39:18,480 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 19:39:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-21 19:39:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-21 19:39:18,481 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-21 19:39:18,481 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-21 19:39:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 19:39:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-21 19:39:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-21 19:39:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_fill_int_urb_7 [2023-11-21 19:39:18,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_fill_int_urb_7 [2023-11-21 19:39:18,482 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 19:39:18,483 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 19:39:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure lcd_write [2023-11-21 19:39:18,484 INFO L138 BoogieDeclarations]: Found implementation of procedure lcd_write [2023-11-21 19:39:18,484 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-21 19:39:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-21 19:39:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-21 19:39:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-21 19:39:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 19:39:18,485 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 19:39:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 19:39:18,485 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-21 19:39:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-21 19:39:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 19:39:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 19:39:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-21 19:39:18,486 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-21 19:39:18,486 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-11-21 19:39:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-11-21 19:39:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure imon_incoming_packet [2023-11-21 19:39:18,487 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_incoming_packet [2023-11-21 19:39:18,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 19:39:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 19:39:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure imon_remote_key_lookup [2023-11-21 19:39:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_remote_key_lookup [2023-11-21 19:39:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 19:39:18,488 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_1 [2023-11-21 19:39:18,488 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_1 [2023-11-21 19:39:18,489 INFO L130 BoogieDeclarations]: Found specification of procedure tv2int [2023-11-21 19:39:18,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tv2int [2023-11-21 19:39:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure stabilize [2023-11-21 19:39:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure stabilize [2023-11-21 19:39:18,495 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-21 19:39:18,495 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-21 19:39:18,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_get_intfdata_6 [2023-11-21 19:39:18,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_get_intfdata_6 [2023-11-21 19:39:18,497 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-21 19:39:18,497 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-21 19:39:18,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 19:39:18,503 INFO L130 BoogieDeclarations]: Found specification of procedure vfd_write [2023-11-21 19:39:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure vfd_write [2023-11-21 19:39:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-21 19:39:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-21 19:39:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 19:39:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-21 19:39:18,504 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-21 19:39:18,504 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 19:39:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_1 [2023-11-21 19:39:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_1 [2023-11-21 19:39:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-11-21 19:39:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-11-21 19:39:18,505 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:39:18,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-21 19:39:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-21 19:39:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-21 19:39:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-21 19:39:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-21 19:39:18,506 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-21 19:39:18,506 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-21 19:39:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-21 19:39:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-21 19:39:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-11-21 19:39:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-11-21 19:39:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_urb [2023-11-21 19:39:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_urb [2023-11-21 19:39:18,507 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 19:39:18,507 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 19:39:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 19:39:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-21 19:39:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-21 19:39:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 19:39:18,508 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 19:39:19,215 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 19:39:19,222 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 19:39:27,279 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 19:39:42,722 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stop___0FINAL: assume true; [2023-11-21 19:39:47,035 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 19:39:49,907 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 19:39:49,908 INFO L308 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-21 19:39:49,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:39:49 BoogieIcfgContainer [2023-11-21 19:39:49,911 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 19:39:49,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 19:39:49,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 19:39:49,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 19:39:49,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 07:39:14" (1/3) ... [2023-11-21 19:39:49,921 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f598d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:39:49, skipping insertion in model container [2023-11-21 19:39:49,921 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 07:39:17" (2/3) ... [2023-11-21 19:39:49,922 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@548f598d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 07:39:49, skipping insertion in model container [2023-11-21 19:39:49,922 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 07:39:49" (3/3) ... [2023-11-21 19:39:49,923 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.12-rc1.tar.xz-144_2a-drivers--media--rc--imon.ko-entry_point.cil.out.i [2023-11-21 19:39:49,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 19:39:49,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 19:39:50,050 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 19:39:50,058 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;@77a4f01f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 19:39:50,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 19:39:50,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 1283 states, 806 states have (on average 1.34863523573201) internal successors, (1087), 837 states have internal predecessors, (1087), 399 states have call successors, (399), 78 states have call predecessors, (399), 76 states have return successors, (390), 385 states have call predecessors, (390), 390 states have call successors, (390) [2023-11-21 19:39:50,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-21 19:39:50,102 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:39:50,103 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:39:50,103 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:39:50,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:39:50,111 INFO L85 PathProgramCache]: Analyzing trace with hash 781629934, now seen corresponding path program 1 times [2023-11-21 19:39:50,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:39:50,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695419865] [2023-11-21 19:39:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:50,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:39:50,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:51,212 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-11-21 19:39:51,213 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:51,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695419865] [2023-11-21 19:39:51,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695419865] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:39:51,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:39:51,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:39:51,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674353592] [2023-11-21 19:39:51,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:39:51,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:39:51,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:39:51,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:39:51,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:39:51,279 INFO L87 Difference]: Start difference. First operand has 1283 states, 806 states have (on average 1.34863523573201) internal successors, (1087), 837 states have internal predecessors, (1087), 399 states have call successors, (399), 78 states have call predecessors, (399), 76 states have return successors, (390), 385 states have call predecessors, (390), 390 states have call successors, (390) Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-21 19:39:56,234 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 19:39:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-21 19:39:57,262 INFO L93 Difference]: Finished difference Result 3772 states and 5517 transitions. [2023-11-21 19:39:57,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-21 19:39:57,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) Word has length 68 [2023-11-21 19:39:57,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-21 19:39:57,308 INFO L225 Difference]: With dead ends: 3772 [2023-11-21 19:39:57,308 INFO L226 Difference]: Without dead ends: 2485 [2023-11-21 19:39:57,321 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 [2023-11-21 19:39:57,324 INFO L413 NwaCegarLoop]: 1696 mSDtfsCounter, 1785 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1785 SdHoareTripleChecker+Valid, 3378 SdHoareTripleChecker+Invalid, 364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2023-11-21 19:39:57,325 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1785 Valid, 3378 Invalid, 364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2023-11-21 19:39:57,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2023-11-21 19:39:57,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2485. [2023-11-21 19:39:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2485 states, 1577 states have (on average 1.3348129359543437) internal successors, (2105), 1613 states have internal predecessors, (2105), 757 states have call successors, (757), 151 states have call predecessors, (757), 150 states have return successors, (752), 742 states have call predecessors, (752), 752 states have call successors, (752) [2023-11-21 19:39:57,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2485 states to 2485 states and 3614 transitions. [2023-11-21 19:39:57,617 INFO L78 Accepts]: Start accepts. Automaton has 2485 states and 3614 transitions. Word has length 68 [2023-11-21 19:39:57,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-21 19:39:57,618 INFO L495 AbstractCegarLoop]: Abstraction has 2485 states and 3614 transitions. [2023-11-21 19:39:57,618 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (9), 1 states have call predecessors, (9), 1 states have call successors, (9) [2023-11-21 19:39:57,619 INFO L276 IsEmpty]: Start isEmpty. Operand 2485 states and 3614 transitions. [2023-11-21 19:39:57,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-11-21 19:39:57,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 19:39:57,625 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 19:39:57,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 19:39:57,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 19:39:57,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 19:39:57,626 INFO L85 PathProgramCache]: Analyzing trace with hash 19033480, now seen corresponding path program 1 times [2023-11-21 19:39:57,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-21 19:39:57,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641305161] [2023-11-21 19:39:57,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 19:39:57,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 19:39:57,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 19:39:58,799 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-21 19:39:58,799 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-21 19:39:58,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641305161] [2023-11-21 19:39:58,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641305161] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 19:39:58,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 19:39:58,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-21 19:39:58,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957815037] [2023-11-21 19:39:58,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 19:39:58,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-21 19:39:58,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-21 19:39:58,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-21 19:39:58,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-21 19:39:58,815 INFO L87 Difference]: Start difference. First operand 2485 states and 3614 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2023-11-21 19:40:00,952 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []