./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 cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/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_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX --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-cf1a783 [2023-11-12 00:45:53,242 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 00:45:53,325 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-12 00:45:53,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 00:45:53,333 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 00:45:53,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 00:45:53,366 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 00:45:53,367 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 00:45:53,368 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 00:45:53,369 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 00:45:53,370 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-12 00:45:53,371 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-12 00:45:53,372 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-12 00:45:53,372 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-12 00:45:53,373 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-12 00:45:53,374 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-12 00:45:53,375 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-12 00:45:53,376 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-12 00:45:53,376 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-12 00:45:53,377 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-12 00:45:53,378 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-12 00:45:53,379 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-12 00:45:53,380 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 00:45:53,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 00:45:53,382 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 00:45:53,382 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 00:45:53,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 00:45:53,384 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 00:45:53,384 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 00:45:53,385 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 00:45:53,385 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 00:45:53,386 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 00:45:53,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 00:45:53,387 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:45:53,388 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 00:45:53,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 00:45:53,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 00:45:53,390 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-12 00:45:53,390 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 00:45:53,391 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 00:45:53,392 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-12 00:45:53,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 00:45:53,393 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_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a536358e61e0a2255e3ce0de609a7b791794491b46be2e56aac063bb1d719b1 [2023-11-12 00:45:53,689 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 00:45:53,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 00:45:53,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 00:45:53,725 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 00:45:53,726 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 00:45:53,728 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2023-11-12 00:45:57,076 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 00:45:57,780 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 00:45:57,782 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2023-11-12 00:45:57,856 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/data/50d32a386/a6268e0a41dd4b1e9f1edee9073147c0/FLAG44387eb56 [2023-11-12 00:45:58,179 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/data/50d32a386/a6268e0a41dd4b1e9f1edee9073147c0 [2023-11-12 00:45:58,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 00:45:58,185 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 00:45:58,187 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 00:45:58,187 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 00:45:58,193 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 00:45:58,194 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,195 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5349f86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:45:58, skipping insertion in model container [2023-11-12 00:45:58,195 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:45:58" (1/1) ... [2023-11-12 00:45:58,418 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 00:46:01,317 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_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2023-11-12 00:46:01,323 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_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2023-11-12 00:46:01,350 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:01,427 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 00:46:01,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3837] [2023-11-12 00:46:01,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3892] [2023-11-12 00:46:01,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3895] [2023-11-12 00:46:01,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3898] [2023-11-12 00:46:01,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3901] [2023-11-12 00:46:01,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4621] [2023-11-12 00:46:01,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [4627] [2023-11-12 00:46:01,677 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] [2023-11-12 00:46:01,677 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] [2023-11-12 00:46:01,678 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] [2023-11-12 00:46:01,678 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] [2023-11-12 00:46:01,724 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [5499] [2023-11-12 00:46:01,931 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_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293480,293493] [2023-11-12 00:46:01,932 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_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i[293625,293638] [2023-11-12 00:46:01,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 00:46:02,185 WARN L672 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:02,186 WARN L672 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 00:46:02,195 INFO L206 MainTranslator]: Completed translation [2023-11-12 00:46:02,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02 WrapperNode [2023-11-12 00:46:02,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 00:46:02,198 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:02,198 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 00:46:02,198 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 00:46:02,207 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,343 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,558 INFO L138 Inliner]: procedures = 363, calls = 3045, calls flagged for inlining = 178, calls inlined = 134, statements flattened = 5109 [2023-11-12 00:46:02,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 00:46:02,560 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 00:46:02,561 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 00:46:02,561 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 00:46:02,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,572 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,627 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,871 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,894 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:02,993 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 00:46:02,995 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 00:46:02,995 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 00:46:02,995 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 00:46:02,997 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (1/1) ... [2023-11-12 00:46:03,005 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 00:46:03,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/z3 [2023-11-12 00:46:03,039 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 00:46:03,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7cbef4dc-64ce-4a93-a98e-3cc486b8d3d9/bin/utaipan-verify-NcY6lQBIFX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 00:46:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 00:46:03,093 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 00:46:03,093 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2023-11-12 00:46:03,094 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2023-11-12 00:46:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-12 00:46:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 00:46:03,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 00:46:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-12 00:46:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-12 00:46:03,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-12 00:46:03,096 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-12 00:46:03,097 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2023-11-12 00:46:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2023-11-12 00:46:03,098 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-12 00:46:03,098 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-12 00:46:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2023-11-12 00:46:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2023-11-12 00:46:03,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-12 00:46:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-12 00:46:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2023-11-12 00:46:03,102 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2023-11-12 00:46:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2023-11-12 00:46:03,102 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2023-11-12 00:46:03,102 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-12 00:46:03,102 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-12 00:46:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2023-11-12 00:46:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2023-11-12 00:46:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2023-11-12 00:46:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2023-11-12 00:46:03,103 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2023-11-12 00:46:03,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2023-11-12 00:46:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2023-11-12 00:46:03,104 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2023-11-12 00:46:03,104 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 00:46:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2023-11-12 00:46:03,105 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2023-11-12 00:46:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 00:46:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-12 00:46:03,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-12 00:46:03,105 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-12 00:46:03,106 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-12 00:46:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2023-11-12 00:46:03,106 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2023-11-12 00:46:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 00:46:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-12 00:46:03,106 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2023-11-12 00:46:03,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2023-11-12 00:46:03,107 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-12 00:46:03,108 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-12 00:46:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-12 00:46:03,109 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-12 00:46:03,109 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2023-11-12 00:46:03,109 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2023-11-12 00:46:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-12 00:46:03,110 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-12 00:46:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-11-12 00:46:03,110 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-11-12 00:46:03,110 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2023-11-12 00:46:03,111 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2023-11-12 00:46:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-12 00:46:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-12 00:46:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2023-11-12 00:46:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2023-11-12 00:46:03,112 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2023-11-12 00:46:03,112 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2023-11-12 00:46:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 00:46:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-11-12 00:46:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-11-12 00:46:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-11-12 00:46:03,113 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-11-12 00:46:03,113 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2023-11-12 00:46:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2023-11-12 00:46:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 00:46:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-12 00:46:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-12 00:46:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-12 00:46:03,114 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-12 00:46:03,114 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2023-11-12 00:46:03,115 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2023-11-12 00:46:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2023-11-12 00:46:03,115 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2023-11-12 00:46:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 00:46:03,115 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2023-11-12 00:46:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2023-11-12 00:46:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-11-12 00:46:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-11-12 00:46:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-12 00:46:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-12 00:46:03,116 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2023-11-12 00:46:03,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2023-11-12 00:46:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-12 00:46:03,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-12 00:46:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-12 00:46:03,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-12 00:46:03,117 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2023-11-12 00:46:03,117 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2023-11-12 00:46:03,118 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-12 00:46:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-12 00:46:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2023-11-12 00:46:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2023-11-12 00:46:03,119 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-12 00:46:03,119 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-12 00:46:03,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 00:46:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2023-11-12 00:46:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2023-11-12 00:46:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-12 00:46:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-12 00:46:03,121 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2023-11-12 00:46:03,121 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2023-11-12 00:46:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2023-11-12 00:46:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2023-11-12 00:46:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-12 00:46:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-12 00:46:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 00:46:03,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-11-12 00:46:03,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-11-12 00:46:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2023-11-12 00:46:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2023-11-12 00:46:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2023-11-12 00:46:03,123 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2023-11-12 00:46:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 00:46:03,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-12 00:46:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-12 00:46:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 00:46:03,124 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2023-11-12 00:46:03,124 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2023-11-12 00:46:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-12 00:46:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2023-11-12 00:46:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2023-11-12 00:46:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2023-11-12 00:46:03,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2023-11-12 00:46:03,125 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:46:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-12 00:46:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-12 00:46:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-12 00:46:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-12 00:46:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-12 00:46:03,126 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2023-11-12 00:46:03,126 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2023-11-12 00:46:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2023-11-12 00:46:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2023-11-12 00:46:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-12 00:46:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-12 00:46:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2023-11-12 00:46:03,127 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2023-11-12 00:46:03,127 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2023-11-12 00:46:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2023-11-12 00:46:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2023-11-12 00:46:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2023-11-12 00:46:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 00:46:03,128 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2023-11-12 00:46:03,128 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2023-11-12 00:46:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-12 00:46:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-12 00:46:03,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 00:46:03,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 00:46:03,898 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 00:46:03,902 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 00:46:04,179 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-12 00:46:27,543 INFO L770 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-12 00:46:27,729 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 00:46:28,864 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 00:46:28,865 INFO L302 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-12 00:46:28,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:28 BoogieIcfgContainer [2023-11-12 00:46:28,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 00:46:28,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 00:46:28,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 00:46:28,877 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 00:46:28,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:45:58" (1/3) ... [2023-11-12 00:46:28,879 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f787fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:28, skipping insertion in model container [2023-11-12 00:46:28,879 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:46:02" (2/3) ... [2023-11-12 00:46:28,880 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f787fdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:46:28, skipping insertion in model container [2023-11-12 00:46:28,880 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:46:28" (3/3) ... [2023-11-12 00:46:28,881 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-media-rc-imon.cil.i [2023-11-12 00:46:28,906 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 00:46:28,907 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 00:46:29,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 00:46:29,022 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;@4cf23274, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-12 00:46:29,022 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 00:46:29,036 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) [2023-11-12 00:46:29,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2023-11-12 00:46:29,098 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:29,099 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] [2023-11-12 00:46:29,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:29,107 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:29,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1937986350, now seen corresponding path program 1 times [2023-11-12 00:46:29,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:29,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397258966] [2023-11-12 00:46:29,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:29,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:29,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:30,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2023-11-12 00:46:30,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:30,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397258966] [2023-11-12 00:46:30,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397258966] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:30,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:30,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:46:30,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997146947] [2023-11-12 00:46:30,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:30,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:30,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:30,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:30,918 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) [2023-11-12 00:46:34,239 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 [] [2023-11-12 00:46:38,132 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 [] [2023-11-12 00:46:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:39,767 INFO L93 Difference]: Finished difference Result 3070 states and 4568 transitions. [2023-11-12 00:46:39,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:39,771 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 [2023-11-12 00:46:39,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:39,820 INFO L225 Difference]: With dead ends: 3070 [2023-11-12 00:46:39,821 INFO L226 Difference]: Without dead ends: 1817 [2023-11-12 00:46:39,839 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 [2023-11-12 00:46:39,843 INFO L413 NwaCegarLoop]: 1613 mSDtfsCounter, 937 mSDsluCounter, 1568 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 937 SdHoareTripleChecker+Valid, 3181 SdHoareTripleChecker+Invalid, 465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.5s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:39,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [937 Valid, 3181 Invalid, 465 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [16 Valid, 447 Invalid, 2 Unknown, 0 Unchecked, 8.5s Time] [2023-11-12 00:46:39,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2023-11-12 00:46:40,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1813. [2023-11-12 00:46:40,103 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) [2023-11-12 00:46:40,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2646 transitions. [2023-11-12 00:46:40,129 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2646 transitions. Word has length 239 [2023-11-12 00:46:40,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 00:46:40,133 INFO L495 AbstractCegarLoop]: Abstraction has 1813 states and 2646 transitions. [2023-11-12 00:46:40,134 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) [2023-11-12 00:46:40,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2646 transitions. [2023-11-12 00:46:40,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2023-11-12 00:46:40,150 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 00:46:40,151 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] [2023-11-12 00:46:40,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 00:46:40,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 00:46:40,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 00:46:40,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1947062521, now seen corresponding path program 1 times [2023-11-12 00:46:40,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-12 00:46:40,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313485559] [2023-11-12 00:46:40,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 00:46:40,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 00:46:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 00:46:40,851 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2023-11-12 00:46:40,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-12 00:46:40,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313485559] [2023-11-12 00:46:40,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313485559] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 00:46:40,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 00:46:40,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 00:46:40,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051488062] [2023-11-12 00:46:40,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 00:46:40,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 00:46:40,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-12 00:46:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 00:46:40,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 00:46:40,862 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) [2023-11-12 00:46:43,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-12 00:46:46,282 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 [] [2023-11-12 00:46:48,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 00:46:48,740 INFO L93 Difference]: Finished difference Result 5247 states and 7653 transitions. [2023-11-12 00:46:48,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 00:46:48,741 INFO L78 Accepts]: Start accepts. Automaton has 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) Word has length 252 [2023-11-12 00:46:48,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 00:46:48,776 INFO L225 Difference]: With dead ends: 5247 [2023-11-12 00:46:48,777 INFO L226 Difference]: Without dead ends: 3473 [2023-11-12 00:46:48,788 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 [2023-11-12 00:46:48,789 INFO L413 NwaCegarLoop]: 1556 mSDtfsCounter, 1588 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1588 SdHoareTripleChecker+Valid, 3086 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.6s IncrementalHoareTripleChecker+Time [2023-11-12 00:46:48,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1588 Valid, 3086 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 424 Invalid, 1 Unknown, 0 Unchecked, 7.6s Time] [2023-11-12 00:46:48,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3473 states.