./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:36:01,711 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:36:01,858 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-23 20:36:01,872 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:36:01,874 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 20:36:01,930 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:36:01,931 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 20:36:01,932 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 20:36:01,933 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:36:01,939 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 20:36:01,940 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-23 20:36:01,941 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-23 20:36:01,941 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-23 20:36:01,944 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-23 20:36:01,944 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-23 20:36:01,945 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-23 20:36:01,946 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-23 20:36:01,946 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-23 20:36:01,947 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-23 20:36:01,948 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-23 20:36:01,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-23 20:36:01,949 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-23 20:36:01,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:36:01,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:36:01,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:36:01,953 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:36:01,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:36:01,954 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:36:01,954 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:36:01,955 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:36:01,957 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:36:01,957 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:36:01,957 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 20:36:01,958 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 20:36:01,958 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:01,958 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:36:01,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:36:01,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:36:01,968 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-23 20:36:01,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:36:01,968 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 20:36:01,969 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:36:01,969 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-23 20:36:01,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 20:36:01,970 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_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2023-11-23 20:36:02,427 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:36:02,466 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:36:02,469 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:36:02,471 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:36:02,472 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:36:02,474 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2023-11-23 20:36:05,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:36:06,392 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:36:06,393 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2023-11-23 20:36:06,460 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/data/e640e17bb/b397f2a23da946f09122d869dd2c15a4/FLAGfbb42e259 [2023-11-23 20:36:06,481 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/data/e640e17bb/b397f2a23da946f09122d869dd2c15a4 [2023-11-23 20:36:06,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:36:06,488 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:36:06,491 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:06,491 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:36:06,497 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:36:06,498 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:06" (1/1) ... [2023-11-23 20:36:06,499 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea0d999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:06, skipping insertion in model container [2023-11-23 20:36:06,499 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:36:06" (1/1) ... [2023-11-23 20:36:06,658 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:36:09,384 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_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2023-11-23 20:36:09,389 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_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2023-11-23 20:36:09,410 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:09,466 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:36:09,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3837] [2023-11-23 20:36:09,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3892] [2023-11-23 20:36:09,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3895] [2023-11-23 20:36:09,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3898] [2023-11-23 20:36:09,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3901] [2023-11-23 20:36:09,636 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4621] [2023-11-23 20:36:09,637 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4627] [2023-11-23 20:36:09,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___5->state): : "memory", "cc"); [4742-4743] [2023-11-23 20:36:09,642 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___6->state): : "memory", "cc"); [4749-4750] [2023-11-23 20:36:09,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___7->state): : "memory", "cc"); [4756-4757] [2023-11-23 20:36:09,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___8->state): : "memory", "cc"); [4763-4764] [2023-11-23 20:36:09,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5499] [2023-11-23 20:36:09,832 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_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2023-11-23 20:36:09,833 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_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2023-11-23 20:36:09,838 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:36:10,022 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:10,022 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 20:36:10,030 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:36:10,031 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10 WrapperNode [2023-11-23 20:36:10,031 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:36:10,032 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:10,033 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:36:10,033 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:36:10,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,151 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,340 INFO L138 Inliner]: procedures = 363, calls = 3045, calls flagged for inlining = 178, calls inlined = 134, statements flattened = 5109 [2023-11-23 20:36:10,341 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:36:10,342 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:36:10,342 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:36:10,342 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:36:10,352 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,352 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,393 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,394 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,596 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,640 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,707 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:36:10,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:36:10,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:36:10,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:36:10,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (1/1) ... [2023-11-23 20:36:10,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 20:36:10,780 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/z3 [2023-11-23 20:36:10,792 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 20:36:10,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_81b40946-e7f4-40ce-bd79-2ffa6e80faf3/bin/utaipan-verify-mE87zJ7Ire/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 20:36:10,833 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-23 20:36:10,833 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-23 20:36:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-23 20:36:10,834 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-23 20:36:10,834 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-23 20:36:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-23 20:36:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-23 20:36:10,835 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-23 20:36:10,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-23 20:36:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-23 20:36:10,836 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-23 20:36:10,836 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-23 20:36:10,837 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-23 20:36:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-23 20:36:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-23 20:36:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-23 20:36:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-23 20:36:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-23 20:36:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-23 20:36:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-23 20:36:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-23 20:36:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-23 20:36:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-23 20:36:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-23 20:36:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-23 20:36:10,841 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-11-23 20:36:10,841 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-11-23 20:36:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-23 20:36:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-23 20:36:10,842 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2023-11-23 20:36:10,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2023-11-23 20:36:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-23 20:36:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-23 20:36:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 20:36:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-23 20:36:10,843 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-23 20:36:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 20:36:10,843 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-23 20:36:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-23 20:36:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-23 20:36:10,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-23 20:36:10,844 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-23 20:36:10,845 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-23 20:36:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 20:36:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 20:36:10,845 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2023-11-23 20:36:10,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2023-11-23 20:36:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-23 20:36:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-23 20:36:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-23 20:36:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-23 20:36:10,847 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2023-11-23 20:36:10,847 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2023-11-23 20:36:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-23 20:36:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-23 20:36:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-23 20:36:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-23 20:36:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-23 20:36:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-23 20:36:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-23 20:36:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-23 20:36:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-23 20:36:10,849 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-23 20:36:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-23 20:36:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-23 20:36:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-23 20:36:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-23 20:36:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-23 20:36:10,850 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-23 20:36:10,850 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-23 20:36:10,851 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-23 20:36:10,851 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-23 20:36:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-23 20:36:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-23 20:36:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-23 20:36:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-23 20:36:10,852 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-23 20:36:10,852 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-23 20:36:10,853 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-23 20:36:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-23 20:36:10,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-23 20:36:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 20:36:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-23 20:36:10,853 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-23 20:36:10,853 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-23 20:36:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-23 20:36:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-23 20:36:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-23 20:36:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-23 20:36:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-23 20:36:10,854 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-23 20:36:10,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-23 20:36:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-23 20:36:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-23 20:36:10,855 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-23 20:36:10,855 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-23 20:36:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-23 20:36:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-23 20:36:10,856 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-23 20:36:10,856 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-23 20:36:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-23 20:36:10,857 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-23 20:36:10,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 20:36:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-23 20:36:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-23 20:36:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-23 20:36:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-23 20:36:10,858 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-23 20:36:10,858 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-23 20:36:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-11-23 20:36:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-11-23 20:36:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-23 20:36:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-23 20:36:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 20:36:10,859 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-23 20:36:10,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-23 20:36:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-23 20:36:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-23 20:36:10,860 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-23 20:36:10,860 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-23 20:36:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 20:36:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-23 20:36:10,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-23 20:36:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 20:36:10,861 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-23 20:36:10,862 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-23 20:36:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-23 20:36:10,862 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-11-23 20:36:10,863 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-11-23 20:36:10,863 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-23 20:36:10,864 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-23 20:36:10,865 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:36:10,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-23 20:36:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-23 20:36:10,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-23 20:36:10,868 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-23 20:36:10,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-23 20:36:10,869 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-23 20:36:10,870 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-23 20:36:10,870 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-23 20:36:10,871 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-23 20:36:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-23 20:36:10,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-23 20:36:10,876 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-23 20:36:10,877 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-23 20:36:10,877 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-23 20:36:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-23 20:36:10,878 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-11-23 20:36:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-11-23 20:36:10,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 20:36:10,878 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-23 20:36:10,878 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-23 20:36:10,878 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-23 20:36:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-23 20:36:10,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:36:10,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:36:11,589 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:36:11,597 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:36:11,853 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-23 20:36:37,048 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-23 20:36:37,181 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:36:38,128 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:36:38,128 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-23 20:36:38,130 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:38 BoogieIcfgContainer [2023-11-23 20:36:38,131 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:36:38,135 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 20:36:38,135 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 20:36:38,138 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 20:36:38,138 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 08:36:06" (1/3) ... [2023-11-23 20:36:38,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e20f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:38, skipping insertion in model container [2023-11-23 20:36:38,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:36:10" (2/3) ... [2023-11-23 20:36:38,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46e20f6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:36:38, skipping insertion in model container [2023-11-23 20:36:38,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:36:38" (3/3) ... [2023-11-23 20:36:38,147 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2023-11-23 20:36:38,168 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 20:36:38,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 20:36:38,269 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 20:36:38,277 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;@14daa4b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 20:36:38,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 20:36:38,290 INFO L276 IsEmpty]: Start isEmpty. Operand has 1234 states, 743 states have (on average 1.3189771197846567) internal successors, (980), 752 states have internal predecessors, (980), 423 states have call successors, (423), 69 states have call predecessors, (423), 68 states have return successors, (417), 416 states have call predecessors, (417), 417 states have call successors, (417) [2023-11-23 20:36:38,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-23 20:36:38,347 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:38,348 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:38,349 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:38,356 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:38,356 INFO L85 PathProgramCache]: Analyzing trace with hash -999432671, now seen corresponding path program 1 times [2023-11-23 20:36:38,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:38,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998572830] [2023-11-23 20:36:38,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:38,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-11-23 20:36:39,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:39,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998572830] [2023-11-23 20:36:39,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998572830] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:39,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:39,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:36:39,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518699872] [2023-11-23 20:36:39,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:39,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:39,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:39,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:39,881 INFO L87 Difference]: Start difference. First operand has 1234 states, 743 states have (on average 1.3189771197846567) internal successors, (980), 752 states have internal predecessors, (980), 423 states have call successors, (423), 69 states have call predecessors, (423), 68 states have return successors, (417), 416 states have call predecessors, (417), 417 states have call successors, (417) Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 20:36:43,125 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:45,143 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:48,687 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:49,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 20:36:49,511 INFO L93 Difference]: Finished difference Result 3070 states and 4568 transitions. [2023-11-23 20:36:49,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 20:36:49,514 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 239 [2023-11-23 20:36:49,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 20:36:49,543 INFO L225 Difference]: With dead ends: 3070 [2023-11-23 20:36:49,544 INFO L226 Difference]: Without dead ends: 1817 [2023-11-23 20:36:49,555 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:49,558 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 937 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 448 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 448 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2023-11-23 20:36:49,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 3181 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 448 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2023-11-23 20:36:49,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2023-11-23 20:36:49,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1813. [2023-11-23 20:36:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1813 states, 1122 states have (on average 1.3119429590017826) internal successors, (1472), 1134 states have internal predecessors, (1472), 587 states have call successors, (587), 103 states have call predecessors, (587), 103 states have return successors, (587), 584 states have call predecessors, (587), 587 states have call successors, (587) [2023-11-23 20:36:49,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2646 transitions. [2023-11-23 20:36:49,835 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2646 transitions. Word has length 239 [2023-11-23 20:36:49,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 20:36:49,840 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 2646 transitions. [2023-11-23 20:36:49,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 3 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2023-11-23 20:36:49,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2646 transitions. [2023-11-23 20:36:49,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-23 20:36:49,851 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 20:36:49,852 INFO L195 NwaCegarLoop]: trace histogram [20, 19, 19, 19, 19, 19, 19, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 20:36:49,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 20:36:49,853 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 20:36:49,853 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:36:49,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1957699120, now seen corresponding path program 1 times [2023-11-23 20:36:49,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-23 20:36:49,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565224372] [2023-11-23 20:36:49,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 20:36:49,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:36:50,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:36:50,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-11-23 20:36:50,518 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-23 20:36:50,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565224372] [2023-11-23 20:36:50,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565224372] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 20:36:50,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 20:36:50,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 20:36:50,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618520236] [2023-11-23 20:36:50,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 20:36:50,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 20:36:50,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-23 20:36:50,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 20:36:50,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 20:36:50,525 INFO L87 Difference]: Start difference. First operand 1813 states and 2646 transitions. Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 3 states have internal predecessors, (63), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2023-11-23 20:36:54,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.81s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:57,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 20:36:58,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []