./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a80d5d6260f748dd9867d7bcd6f4a93a5987d3d416867522c1bef6a78e755228 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:28:24,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:28:24,273 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-21 22:28:24,282 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:28:24,283 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:28:24,328 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:28:24,329 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:28:24,330 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:28:24,331 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:28:24,332 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:28:24,333 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:28:24,334 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:28:24,335 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:28:24,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:28:24,336 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:28:24,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:28:24,338 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:28:24,339 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:28:24,339 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:28:24,340 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:28:24,341 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:28:24,341 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:28:24,342 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:28:24,342 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:28:24,343 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:28:24,344 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:28:24,344 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:28:24,345 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:28:24,346 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:24,346 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:28:24,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:28:24,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:28:24,349 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:28:24,349 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:28:24,349 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:28:24,349 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:28:24,350 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:28:24,350 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:28:24,350 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:28:24,351 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a80d5d6260f748dd9867d7bcd6f4a93a5987d3d416867522c1bef6a78e755228 [2023-11-21 22:28:24,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:28:24,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:28:24,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:28:24,765 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:28:24,766 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:28:24,767 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i [2023-11-21 22:28:28,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:28:28,810 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:28:28,811 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i [2023-11-21 22:28:28,861 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/data/9c599d0b5/13a396a291834fbb966299da786689f5/FLAG2ebd7cead [2023-11-21 22:28:28,881 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/data/9c599d0b5/13a396a291834fbb966299da786689f5 [2023-11-21 22:28:28,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:28:28,891 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:28:28,894 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:28,895 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:28:28,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:28:28,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:28" (1/1) ... [2023-11-21 22:28:28,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ceb05fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:28, skipping insertion in model container [2023-11-21 22:28:28,903 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:28:28" (1/1) ... [2023-11-21 22:28:29,044 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:28:30,647 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_86e56ebf-adae-4408-af7e-e362c0de7aed/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i[191080,191093] [2023-11-21 22:28:30,708 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:30,777 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:28:30,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [4374-4375] [2023-11-21 22:28:30,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [4392] [2023-11-21 22:28:30,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4395] [2023-11-21 22:28:30,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4398] [2023-11-21 22:28:30,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [4401] [2023-11-21 22:28:31,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [4688] [2023-11-21 22:28:31,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgb %b0, %1\n": "+q" (__ret), "+m" (tmp___1->state): : "memory", "cc"); [5323-5324] [2023-11-21 22:28:31,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgw %w0, %1\n": "+r" (__ret), "+m" (tmp___2->state): : "memory", "cc"); [5328-5329] [2023-11-21 22:28:31,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgl %0, %1\n": "+r" (__ret), "+m" (tmp___3->state): : "memory", "cc"); [5333-5334] [2023-11-21 22:28:31,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("xchgq %q0, %1\n": "+r" (__ret), "+m" (tmp___4->state): : "memory", "cc"); [5338-5339] [2023-11-21 22:28:31,303 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_86e56ebf-adae-4408-af7e-e362c0de7aed/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i[191080,191093] [2023-11-21 22:28:31,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:28:31,403 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:31,403 WARN L675 CHandler]: The function __xchg_wrong_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:31,404 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 22:28:31,412 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:28:31,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31 WrapperNode [2023-11-21 22:28:31,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:28:31,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:31,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:28:31,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:28:31,422 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:31,511 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:31,637 INFO L138 Inliner]: procedures = 210, calls = 1476, calls flagged for inlining = 106, calls inlined = 106, statements flattened = 3630 [2023-11-21 22:28:31,637 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:28:31,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:28:31,638 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:28:31,638 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:28:31,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:31,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:31,678 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,365 WARN L106 HeapSplitter]: Omit memory slicing because it failed with the following exception: Unsupported: Procedure #Ultimate.C_memcpy is not part of the Ultimate memory model but has specification other that is not a ModifiesSpecification [2023-11-21 22:28:32,365 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,507 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,542 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,588 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,611 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:28:32,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:28:32,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:28:32,659 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:28:32,660 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (1/1) ... [2023-11-21 22:28:32,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:28:32,680 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:28:32,701 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:28:32,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_86e56ebf-adae-4408-af7e-e362c0de7aed/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:28:32,752 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_fe_init [2023-11-21 22:28:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_fe_init [2023-11-21 22:28:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_try_module_get [2023-11-21 22:28:32,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_try_module_get [2023-11-21 22:28:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-11-21 22:28:32,753 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2023-11-21 22:28:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-21 22:28:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-21 22:28:32,754 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-11-21 22:28:32,754 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-11-21 22:28:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-21 22:28:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-21 22:28:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-21 22:28:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-21 22:28:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure wait_i2c_result [2023-11-21 22:28:32,755 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_i2c_result [2023-11-21 22:28:32,755 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_unregister_adapter [2023-11-21 22:28:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_unregister_adapter [2023-11-21 22:28:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-11-21 22:28:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-11-21 22:28:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-21 22:28:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-21 22:28:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_stop_streaming [2023-11-21 22:28:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_stop_streaming [2023-11-21 22:28:32,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2023-11-21 22:28:32,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2023-11-21 22:28:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-11-21 22:28:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-11-21 22:28:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure usleep_range [2023-11-21 22:28:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure usleep_range [2023-11-21 22:28:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_mask [2023-11-21 22:28:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_mask [2023-11-21 22:28:32,757 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_lnb_ctrl [2023-11-21 22:28:32,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_lnb_ctrl [2023-11-21 22:28:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-11-21 22:28:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-11-21 22:28:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2023-11-21 22:28:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2023-11-21 22:28:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:28:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:28:32,758 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_release [2023-11-21 22:28:32,758 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_release [2023-11-21 22:28:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_free_dmabuf [2023-11-21 22:28:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_free_dmabuf [2023-11-21 22:28:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2023-11-21 22:28:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2023-11-21 22:28:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_alloc_dmabuf [2023-11-21 22:28:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_alloc_dmabuf [2023-11-21 22:28:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-21 22:28:32,759 INFO L130 BoogieDeclarations]: Found specification of procedure __request_module [2023-11-21 22:28:32,759 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_module [2023-11-21 22:28:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-21 22:28:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2023-11-21 22:28:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2023-11-21 22:28:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2023-11-21 22:28:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2023-11-21 22:28:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-21 22:28:32,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-21 22:28:32,760 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_new_device [2023-11-21 22:28:32,761 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_new_device [2023-11-21 22:28:32,761 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2023-11-21 22:28:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2023-11-21 22:28:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-21 22:28:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-21 22:28:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_unregister_device [2023-11-21 22:28:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_unregister_device [2023-11-21 22:28:32,762 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_base [2023-11-21 22:28:32,762 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_base [2023-11-21 22:28:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2023-11-21 22:28:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2023-11-21 22:28:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-11-21 22:28:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-11-21 22:28:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-11-21 22:28:32,763 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-11-21 22:28:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-21 22:28:32,763 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_resume [2023-11-21 22:28:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_resume [2023-11-21 22:28:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2023-11-21 22:28:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2023-11-21 22:28:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-21 22:28:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2023-11-21 22:28:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2023-11-21 22:28:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_demod_write [2023-11-21 22:28:32,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_demod_write [2023-11-21 22:28:32,764 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2023-11-21 22:28:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2023-11-21 22:28:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-21 22:28:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure send_i2c_cmd [2023-11-21 22:28:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure send_i2c_cmd [2023-11-21 22:28:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-21 22:28:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-21 22:28:32,765 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmx_swfilter_packets [2023-11-21 22:28:32,765 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmx_swfilter_packets [2023-11-21 22:28:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-11-21 22:28:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-11-21 22:28:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure cmdbuf_add [2023-11-21 22:28:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure cmdbuf_add [2023-11-21 22:28:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-21 22:28:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-21 22:28:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-21 22:28:32,766 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_stop_dma [2023-11-21 22:28:32,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_stop_dma [2023-11-21 22:28:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2023-11-21 22:28:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2023-11-21 22:28:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-21 22:28:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-21 22:28:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure put_byte_write [2023-11-21 22:28:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure put_byte_write [2023-11-21 22:28:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure dma_set_coherent_mask [2023-11-21 22:28:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_set_coherent_mask [2023-11-21 22:28:32,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2023-11-21 22:28:32,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_set_tuner_power [2023-11-21 22:28:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_set_tuner_power [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure pci_ioremap_bar [2023-11-21 22:28:32,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_ioremap_bar [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-21 22:28:32,768 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_suspend [2023-11-21 22:28:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_suspend [2023-11-21 22:28:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:28:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-21 22:28:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_start_dma [2023-11-21 22:28:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_start_dma [2023-11-21 22:28:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_find_adapter [2023-11-21 22:28:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_find_adapter [2023-11-21 22:28:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2023-11-21 22:28:32,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2023-11-21 22:28:32,769 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_init_dmabuf [2023-11-21 22:28:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_init_dmabuf [2023-11-21 22:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure dvb_dmxdev_release [2023-11-21 22:28:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dvb_dmxdev_release [2023-11-21 22:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure dma_alloc_attrs [2023-11-21 22:28:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_alloc_attrs [2023-11-21 22:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure i2c_del_adapter [2023-11-21 22:28:32,770 INFO L138 BoogieDeclarations]: Found implementation of procedure i2c_del_adapter [2023-11-21 22:28:32,770 INFO L130 BoogieDeclarations]: Found specification of procedure pt3_cleanup_adapter [2023-11-21 22:28:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pt3_cleanup_adapter [2023-11-21 22:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure dev_warn [2023-11-21 22:28:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_warn [2023-11-21 22:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-21 22:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:28:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:28:32,771 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-11-21 22:28:32,771 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-11-21 22:28:33,425 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:28:33,429 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:28:34,092 INFO L774 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-21 22:28:48,237 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:28:49,817 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:28:49,817 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:28:49,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:49 BoogieIcfgContainer [2023-11-21 22:28:49,820 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:28:49,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:28:49,824 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:28:49,828 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:28:49,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:28:28" (1/3) ... [2023-11-21 22:28:49,830 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c0a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:49, skipping insertion in model container [2023-11-21 22:28:49,831 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:28:31" (2/3) ... [2023-11-21 22:28:49,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63c0a172 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:28:49, skipping insertion in model container [2023-11-21 22:28:49,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:28:49" (3/3) ... [2023-11-21 22:28:49,834 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--media--pci--pt3--earth-pt3.ko-entry_point.cil.out.i [2023-11-21 22:28:49,858 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:28:49,858 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:28:49,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:28:49,963 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=PETRI_NET, 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;@446c4987, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:28:49,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:28:49,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 797 states, 508 states have (on average 1.3779527559055118) internal successors, (700), 528 states have internal predecessors, (700), 224 states have call successors, (224), 64 states have call predecessors, (224), 63 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) [2023-11-21 22:28:49,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-21 22:28:49,998 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:28:49,999 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:28:50,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:28:50,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:28:50,009 INFO L85 PathProgramCache]: Analyzing trace with hash -511300833, now seen corresponding path program 1 times [2023-11-21 22:28:50,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:28:50,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418402232] [2023-11-21 22:28:50,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:28:50,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:28:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:50,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:50,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:50,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:50,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:28:50,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:50,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-21 22:28:50,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:50,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-21 22:28:50,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:51,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-21 22:28:51,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:28:51,020 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-21 22:28:51,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-21 22:28:51,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418402232] [2023-11-21 22:28:51,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418402232] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:28:51,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:28:51,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-21 22:28:51,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736413827] [2023-11-21 22:28:51,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:28:51,029 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-21 22:28:51,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-21 22:28:51,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-21 22:28:51,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-21 22:28:51,066 INFO L87 Difference]: Start difference. First operand has 797 states, 508 states have (on average 1.3779527559055118) internal successors, (700), 528 states have internal predecessors, (700), 224 states have call successors, (224), 64 states have call predecessors, (224), 63 states have return successors, (219), 216 states have call predecessors, (219), 219 states have call successors, (219) Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (5), 4 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2023-11-21 22:28:58,501 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 [] [2023-11-21 22:29:00,511 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:03,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:05,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:07,179 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:09,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:11,797 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:13,807 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:16,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:18,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-21 22:29:20,248 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []