./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1 --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 3aefe7c24f7dbfd113682bd81b91ef3b049ad438c933de49acd0f78d1e093848 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:25:15,233 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:25:15,286 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:25:15,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:25:15,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:25:15,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:25:15,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:25:15,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:25:15,313 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:25:15,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:25:15,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:25:15,314 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:25:15,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:25:15,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:25:15,314 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:25:15,314 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:25:15,315 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:25:15,315 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:15,316 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:15,316 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:25:15,316 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:25:15,317 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1 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 -> 3aefe7c24f7dbfd113682bd81b91ef3b049ad438c933de49acd0f78d1e093848 [2024-12-02 11:25:15,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:25:15,559 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:25:15,561 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:25:15,562 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:25:15,562 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:25:15,563 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2024-12-02 11:25:18,238 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/data/3d9654aba/162adf9735ac4b5a806ce0994e45e5be/FLAGc2ba5aa35 [2024-12-02 11:25:18,609 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:25:18,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2024-12-02 11:25:18,632 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/data/3d9654aba/162adf9735ac4b5a806ce0994e45e5be/FLAGc2ba5aa35 [2024-12-02 11:25:18,821 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/data/3d9654aba/162adf9735ac4b5a806ce0994e45e5be [2024-12-02 11:25:18,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:25:18,824 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:25:18,825 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:25:18,826 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:25:18,830 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:25:18,830 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:18" (1/1) ... [2024-12-02 11:25:18,831 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d4a7893 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:18, skipping insertion in model container [2024-12-02 11:25:18,831 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:25:18" (1/1) ... [2024-12-02 11:25:18,891 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:25:19,797 WARN L250 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_d9304676-bbea-41b8-a5be-6148ed0dcb17/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2024-12-02 11:25:19,858 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:25:19,872 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:25:19,960 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3073] [2024-12-02 11:25:19,964 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)); [3087-3088] [2024-12-02 11:25:19,964 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3102] [2024-12-02 11:25:19,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3105] [2024-12-02 11:25:19,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3108] [2024-12-02 11:25:19,965 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3111] [2024-12-02 11:25:19,967 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [3173] [2024-12-02 11:25:19,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3176] [2024-12-02 11:25:19,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3179] [2024-12-02 11:25:19,968 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3182] [2024-12-02 11:25:20,085 WARN L250 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_d9304676-bbea-41b8-a5be-6148ed0dcb17/sv-benchmarks/c/ldv-consumption/linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i[133672,133685] [2024-12-02 11:25:20,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:25:20,149 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:25:20,150 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20 WrapperNode [2024-12-02 11:25:20,150 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:25:20,151 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:25:20,151 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:25:20,151 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:25:20,159 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,200 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,317 INFO L138 Inliner]: procedures = 191, calls = 833, calls flagged for inlining = 89, calls inlined = 75, statements flattened = 2334 [2024-12-02 11:25:20,317 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:25:20,318 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:25:20,318 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:25:20,318 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:25:20,328 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,346 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,537 INFO L175 MemorySlicer]: Split 435 memory accesses to 14 slices as follows [2, 3, 8, 7, 7, 113, 1, 7, 35, 9, 5, 2, 234, 2]. 54 percent of accesses are in the largest equivalence class. The 39 initializations are split as follows [2, 0, 0, 7, 7, 0, 0, 7, 7, 9, 0, 0, 0, 0]. The 171 writes are split as follows [0, 0, 1, 0, 0, 103, 0, 0, 28, 0, 5, 0, 34, 0]. [2024-12-02 11:25:20,537 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,537 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,599 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,604 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,615 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,659 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,687 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:25:20,688 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:25:20,688 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:25:20,688 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:25:20,689 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (1/1) ... [2024-12-02 11:25:20,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:25:20,709 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:20,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:25:20,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:25:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:25:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:25:20,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 11:25:20,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure input_event_size [2024-12-02 11:25:20,760 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event_size [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 11:25:20,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 11:25:20,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:25:20,762 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 11:25:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 11:25:20,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2024-12-02 11:25:20,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 11:25:20,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 11:25:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 11:25:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 11:25:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 11:25:20,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 11:25:20,765 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_done [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_done [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 11:25:20,766 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 11:25:20,766 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_flat [2024-12-02 11:25:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_flat [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 11:25:20,767 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-12-02 11:25:20,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure input_alloc_absinfo [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure input_alloc_absinfo [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_return_value [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_return_value [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_request_find [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_request_find [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mutex_of_uinput_device [2024-12-02 11:25:20,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mutex_of_uinput_device [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:25:20,768 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_allocate_device [2024-12-02 11:25:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_allocate_device [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-12-02 11:25:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ioctl_handler [2024-12-02 11:25:20,769 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ioctl_handler [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 11:25:20,769 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2024-12-02 11:25:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure __bad_percpu_size [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_ff_upload_from_user [2024-12-02 11:25:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_ff_upload_from_user [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure uinput_destroy_device [2024-12-02 11:25:20,770 INFO L138 BoogieDeclarations]: Found implementation of procedure uinput_destroy_device [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:25:20,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_max [2024-12-02 11:25:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_max [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-12-02 11:25:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-12-02 11:25:20,771 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2024-12-02 11:25:20,771 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-12-02 11:25:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible [2024-12-02 11:25:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure input_abs_get_min [2024-12-02 11:25:20,772 INFO L138 BoogieDeclarations]: Found implementation of procedure input_abs_get_min [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 11:25:20,772 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure is_compat_task [2024-12-02 11:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure is_compat_task [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-12-02 11:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2024-12-02 11:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 11:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2024-12-02 11:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-12-02 11:25:20,773 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-12-02 11:25:20,773 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-12-02 11:25:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-12-02 11:25:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 11:25:20,774 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 11:25:20,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_handler_precall [2024-12-02 11:25:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_handler_precall [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-12-02 11:25:20,775 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 11:25:20,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-12-02 11:25:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2024-12-02 11:25:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:25:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:25:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-12-02 11:25:20,776 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-12-02 11:25:21,320 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:25:21,323 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:25:34,400 INFO L? ?]: Removed 1200 outVars from TransFormulas that were not future-live. [2024-12-02 11:25:34,400 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:25:34,430 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:25:34,430 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:25:34,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:34 BoogieIcfgContainer [2024-12-02 11:25:34,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:25:34,434 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:25:34,434 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:25:34,439 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:25:34,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:25:18" (1/3) ... [2024-12-02 11:25:34,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c278b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:25:34, skipping insertion in model container [2024-12-02 11:25:34,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:25:20" (2/3) ... [2024-12-02 11:25:34,441 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c278b90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:25:34, skipping insertion in model container [2024-12-02 11:25:34,441 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:34" (3/3) ... [2024-12-02 11:25:34,442 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i [2024-12-02 11:25:34,457 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:25:34,459 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.8-rc1-32_7a-drivers--input--misc--uinput.ko-ldv_main0.cil.out.i that has 58 procedures, 780 locations, 1 initial locations, 29 loop locations, and 1 error locations. [2024-12-02 11:25:34,532 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:25:34,545 INFO L333 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, 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;@7daab1d6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:25:34,545 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:25:34,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 715 states, 527 states have (on average 1.3586337760910816) internal successors, (716), 541 states have internal predecessors, (716), 142 states have call successors, (142), 44 states have call predecessors, (142), 44 states have return successors, (142), 140 states have call predecessors, (142), 142 states have call successors, (142) [2024-12-02 11:25:34,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-02 11:25:34,557 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:34,558 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:34,558 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:34,563 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:34,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1531329268, now seen corresponding path program 1 times [2024-12-02 11:25:34,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:34,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681276346] [2024-12-02 11:25:34,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:35,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:25:35,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:35,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681276346] [2024-12-02 11:25:35,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681276346] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:35,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:35,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:25:35,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024748320] [2024-12-02 11:25:35,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:35,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:25:35,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:35,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:25:35,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:35,102 INFO L87 Difference]: Start difference. First operand has 715 states, 527 states have (on average 1.3586337760910816) internal successors, (716), 541 states have internal predecessors, (716), 142 states have call successors, (142), 44 states have call predecessors, (142), 44 states have return successors, (142), 140 states have call predecessors, (142), 142 states have call successors, (142) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:25:36,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:25:36,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:36,267 INFO L93 Difference]: Finished difference Result 1419 states and 2003 transitions. [2024-12-02 11:25:36,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:25:36,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2024-12-02 11:25:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:36,285 INFO L225 Difference]: With dead ends: 1419 [2024-12-02 11:25:36,285 INFO L226 Difference]: Without dead ends: 708 [2024-12-02 11:25:36,292 INFO L434 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 [2024-12-02 11:25:36,295 INFO L435 NwaCegarLoop]: 988 mSDtfsCounter, 980 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 988 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:36,296 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [980 Valid, 988 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-12-02 11:25:36,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-12-02 11:25:36,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 708. [2024-12-02 11:25:36,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 523 states have (on average 1.3518164435946463) internal successors, (707), 534 states have internal predecessors, (707), 141 states have call successors, (141), 44 states have call predecessors, (141), 43 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2024-12-02 11:25:36,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 985 transitions. [2024-12-02 11:25:36,400 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 985 transitions. Word has length 14 [2024-12-02 11:25:36,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:36,401 INFO L471 AbstractCegarLoop]: Abstraction has 708 states and 985 transitions. [2024-12-02 11:25:36,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:25:36,402 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 985 transitions. [2024-12-02 11:25:36,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-02 11:25:36,403 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:36,403 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:36,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:25:36,403 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:36,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:36,404 INFO L85 PathProgramCache]: Analyzing trace with hash 226283447, now seen corresponding path program 1 times [2024-12-02 11:25:36,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:36,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160048779] [2024-12-02 11:25:36,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:36,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:36,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:25:36,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:36,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160048779] [2024-12-02 11:25:36,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160048779] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:36,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:36,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:25:36,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955535906] [2024-12-02 11:25:36,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:36,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:25:36,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:36,716 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:25:36,716 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:36,717 INFO L87 Difference]: Start difference. First operand 708 states and 985 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:25:37,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:25:37,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:37,974 INFO L93 Difference]: Finished difference Result 710 states and 986 transitions. [2024-12-02 11:25:37,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:25:37,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-12-02 11:25:37,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:37,981 INFO L225 Difference]: With dead ends: 710 [2024-12-02 11:25:37,981 INFO L226 Difference]: Without dead ends: 707 [2024-12-02 11:25:37,982 INFO L434 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 [2024-12-02 11:25:37,982 INFO L435 NwaCegarLoop]: 982 mSDtfsCounter, 973 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 973 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:37,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [973 Valid, 982 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-02 11:25:37,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-12-02 11:25:38,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 707. [2024-12-02 11:25:38,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 707 states, 523 states have (on average 1.349904397705545) internal successors, (706), 533 states have internal predecessors, (706), 140 states have call successors, (140), 44 states have call predecessors, (140), 43 states have return successors, (137), 135 states have call predecessors, (137), 137 states have call successors, (137) [2024-12-02 11:25:38,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 707 states to 707 states and 983 transitions. [2024-12-02 11:25:38,033 INFO L78 Accepts]: Start accepts. Automaton has 707 states and 983 transitions. Word has length 15 [2024-12-02 11:25:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:38,033 INFO L471 AbstractCegarLoop]: Abstraction has 707 states and 983 transitions. [2024-12-02 11:25:38,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:25:38,033 INFO L276 IsEmpty]: Start isEmpty. Operand 707 states and 983 transitions. [2024-12-02 11:25:38,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-02 11:25:38,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:38,034 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:38,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:25:38,034 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:38,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:38,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1575426473, now seen corresponding path program 1 times [2024-12-02 11:25:38,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:38,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337613471] [2024-12-02 11:25:38,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:38,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:38,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 11:25:38,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:38,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337613471] [2024-12-02 11:25:38,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337613471] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:38,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:38,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:25:38,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330812389] [2024-12-02 11:25:38,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:38,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:25:38,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:38,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:25:38,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:38,282 INFO L87 Difference]: Start difference. First operand 707 states and 983 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:25:39,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:39,319 INFO L93 Difference]: Finished difference Result 2049 states and 2871 transitions. [2024-12-02 11:25:39,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:25:39,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-12-02 11:25:39,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:39,330 INFO L225 Difference]: With dead ends: 2049 [2024-12-02 11:25:39,330 INFO L226 Difference]: Without dead ends: 1342 [2024-12-02 11:25:39,333 INFO L434 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 [2024-12-02 11:25:39,334 INFO L435 NwaCegarLoop]: 1513 mSDtfsCounter, 970 mSDsluCounter, 895 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 970 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:39,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [970 Valid, 2408 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-12-02 11:25:39,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2024-12-02 11:25:39,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1339. [2024-12-02 11:25:39,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 994 states have (on average 1.3490945674044266) internal successors, (1341), 1012 states have internal predecessors, (1341), 264 states have call successors, (264), 82 states have call predecessors, (264), 80 states have return successors, (268), 254 states have call predecessors, (268), 258 states have call successors, (268) [2024-12-02 11:25:39,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 1873 transitions. [2024-12-02 11:25:39,430 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 1873 transitions. Word has length 16 [2024-12-02 11:25:39,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:39,430 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 1873 transitions. [2024-12-02 11:25:39,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-12-02 11:25:39,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 1873 transitions. [2024-12-02 11:25:39,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 11:25:39,434 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:39,434 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:25:39,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:25:39,434 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:39,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:39,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1565403306, now seen corresponding path program 1 times [2024-12-02 11:25:39,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:39,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733167745] [2024-12-02 11:25:39,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:39,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:39,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 11:25:39,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:39,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733167745] [2024-12-02 11:25:39,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733167745] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:39,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:39,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:25:39,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587951767] [2024-12-02 11:25:39,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:39,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:25:39,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:39,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:25:39,759 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:39,760 INFO L87 Difference]: Start difference. First operand 1339 states and 1873 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 11:25:39,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:39,922 INFO L93 Difference]: Finished difference Result 2749 states and 3862 transitions. [2024-12-02 11:25:39,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:25:39,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-12-02 11:25:39,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:39,933 INFO L225 Difference]: With dead ends: 2749 [2024-12-02 11:25:39,933 INFO L226 Difference]: Without dead ends: 1418 [2024-12-02 11:25:39,956 INFO L434 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 [2024-12-02 11:25:39,957 INFO L435 NwaCegarLoop]: 985 mSDtfsCounter, 54 mSDsluCounter, 947 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 1932 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:39,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 1932 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:39,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2024-12-02 11:25:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1409. [2024-12-02 11:25:40,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1054 states have (on average 1.3510436432637571) internal successors, (1424), 1072 states have internal predecessors, (1424), 274 states have call successors, (274), 82 states have call predecessors, (274), 80 states have return successors, (282), 264 states have call predecessors, (282), 268 states have call successors, (282) [2024-12-02 11:25:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 1980 transitions. [2024-12-02 11:25:40,046 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 1980 transitions. Word has length 44 [2024-12-02 11:25:40,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:40,047 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 1980 transitions. [2024-12-02 11:25:40,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-12-02 11:25:40,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 1980 transitions. [2024-12-02 11:25:40,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-12-02 11:25:40,050 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:40,050 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:25:40,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:25:40,050 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:40,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:40,051 INFO L85 PathProgramCache]: Analyzing trace with hash 620108975, now seen corresponding path program 1 times [2024-12-02 11:25:40,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:40,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702834404] [2024-12-02 11:25:40,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:40,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:40,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 11:25:40,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:40,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702834404] [2024-12-02 11:25:40,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702834404] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:40,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:40,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:25:40,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326951096] [2024-12-02 11:25:40,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:40,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:25:40,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:40,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:25:40,429 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:40,430 INFO L87 Difference]: Start difference. First operand 1409 states and 1980 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 11:25:41,676 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:25:41,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:41,785 INFO L93 Difference]: Finished difference Result 2812 states and 3952 transitions. [2024-12-02 11:25:41,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:25:41,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 55 [2024-12-02 11:25:41,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:41,792 INFO L225 Difference]: With dead ends: 2812 [2024-12-02 11:25:41,792 INFO L226 Difference]: Without dead ends: 1411 [2024-12-02 11:25:41,797 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:41,797 INFO L435 NwaCegarLoop]: 1174 mSDtfsCounter, 882 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 2133 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:41,798 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 2133 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-02 11:25:41,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2024-12-02 11:25:41,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1402. [2024-12-02 11:25:41,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1402 states, 1051 states have (on average 1.3501427212178878) internal successors, (1419), 1067 states have internal predecessors, (1419), 270 states have call successors, (270), 82 states have call predecessors, (270), 80 states have return successors, (266), 262 states have call predecessors, (266), 259 states have call successors, (266) [2024-12-02 11:25:41,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1402 states to 1402 states and 1955 transitions. [2024-12-02 11:25:41,863 INFO L78 Accepts]: Start accepts. Automaton has 1402 states and 1955 transitions. Word has length 55 [2024-12-02 11:25:41,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:41,863 INFO L471 AbstractCegarLoop]: Abstraction has 1402 states and 1955 transitions. [2024-12-02 11:25:41,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 11:25:41,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1402 states and 1955 transitions. [2024-12-02 11:25:41,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-12-02 11:25:41,865 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:41,866 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-12-02 11:25:41,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 11:25:41,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:41,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:41,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1055784839, now seen corresponding path program 1 times [2024-12-02 11:25:41,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:41,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832113018] [2024-12-02 11:25:41,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:41,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:41,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-02 11:25:42,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:42,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832113018] [2024-12-02 11:25:42,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832113018] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:42,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:42,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:42,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39423948] [2024-12-02 11:25:42,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:42,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:42,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:42,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:42,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:42,288 INFO L87 Difference]: Start difference. First operand 1402 states and 1955 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 11:25:42,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:42,523 INFO L93 Difference]: Finished difference Result 1532 states and 2107 transitions. [2024-12-02 11:25:42,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:42,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 53 [2024-12-02 11:25:42,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:42,532 INFO L225 Difference]: With dead ends: 1532 [2024-12-02 11:25:42,532 INFO L226 Difference]: Without dead ends: 1174 [2024-12-02 11:25:42,535 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:42,536 INFO L435 NwaCegarLoop]: 992 mSDtfsCounter, 2 mSDsluCounter, 3918 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 4910 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:42,536 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 4910 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:42,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1174 states. [2024-12-02 11:25:42,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1174 to 1169. [2024-12-02 11:25:42,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1169 states, 878 states have (on average 1.328018223234624) internal successors, (1166), 890 states have internal predecessors, (1166), 218 states have call successors, (218), 74 states have call predecessors, (218), 72 states have return successors, (215), 213 states have call predecessors, (215), 208 states have call successors, (215) [2024-12-02 11:25:42,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1599 transitions. [2024-12-02 11:25:42,606 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1599 transitions. Word has length 53 [2024-12-02 11:25:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:42,607 INFO L471 AbstractCegarLoop]: Abstraction has 1169 states and 1599 transitions. [2024-12-02 11:25:42,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-12-02 11:25:42,607 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1599 transitions. [2024-12-02 11:25:42,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-12-02 11:25:42,609 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:42,610 INFO L218 NwaCegarLoop]: trace histogram [3, 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] [2024-12-02 11:25:42,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 11:25:42,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:42,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:42,610 INFO L85 PathProgramCache]: Analyzing trace with hash 657213630, now seen corresponding path program 1 times [2024-12-02 11:25:42,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:42,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792907080] [2024-12-02 11:25:42,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:42,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:43,080 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 11:25:43,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:43,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792907080] [2024-12-02 11:25:43,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792907080] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:43,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:43,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:43,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324840962] [2024-12-02 11:25:43,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:43,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:43,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:43,081 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:43,081 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:43,082 INFO L87 Difference]: Start difference. First operand 1169 states and 1599 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:43,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:43,357 INFO L93 Difference]: Finished difference Result 1411 states and 1922 transitions. [2024-12-02 11:25:43,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:43,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 58 [2024-12-02 11:25:43,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:43,368 INFO L225 Difference]: With dead ends: 1411 [2024-12-02 11:25:43,368 INFO L226 Difference]: Without dead ends: 1164 [2024-12-02 11:25:43,370 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:43,370 INFO L435 NwaCegarLoop]: 984 mSDtfsCounter, 134 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 4720 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:43,371 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 4720 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:43,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1164 states. [2024-12-02 11:25:43,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1164 to 1159. [2024-12-02 11:25:43,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1159 states, 869 states have (on average 1.3302646720368239) internal successors, (1156), 884 states have internal predecessors, (1156), 218 states have call successors, (218), 74 states have call predecessors, (218), 71 states have return successors, (211), 209 states have call predecessors, (211), 208 states have call successors, (211) [2024-12-02 11:25:43,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1159 states to 1159 states and 1585 transitions. [2024-12-02 11:25:43,478 INFO L78 Accepts]: Start accepts. Automaton has 1159 states and 1585 transitions. Word has length 58 [2024-12-02 11:25:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:43,478 INFO L471 AbstractCegarLoop]: Abstraction has 1159 states and 1585 transitions. [2024-12-02 11:25:43,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 11:25:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 1159 states and 1585 transitions. [2024-12-02 11:25:43,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-02 11:25:43,483 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:43,483 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 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] [2024-12-02 11:25:43,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 11:25:43,484 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:43,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:43,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1326064945, now seen corresponding path program 1 times [2024-12-02 11:25:43,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:43,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120010337] [2024-12-02 11:25:43,485 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:43,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:43,912 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-12-02 11:25:43,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:43,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120010337] [2024-12-02 11:25:43,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120010337] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:43,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:43,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:25:43,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800999031] [2024-12-02 11:25:43,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:43,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:25:43,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:43,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:25:43,914 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:43,915 INFO L87 Difference]: Start difference. First operand 1159 states and 1585 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 11:25:44,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:44,022 INFO L93 Difference]: Finished difference Result 2316 states and 3170 transitions. [2024-12-02 11:25:44,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:25:44,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2024-12-02 11:25:44,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:44,032 INFO L225 Difference]: With dead ends: 2316 [2024-12-02 11:25:44,032 INFO L226 Difference]: Without dead ends: 1162 [2024-12-02 11:25:44,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:25:44,038 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 0 mSDsluCounter, 1955 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2935 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:44,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2935 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:44,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162 states. [2024-12-02 11:25:44,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162 to 1162. [2024-12-02 11:25:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 871 states have (on average 1.328358208955224) internal successors, (1157), 886 states have internal predecessors, (1157), 219 states have call successors, (219), 74 states have call predecessors, (219), 71 states have return successors, (212), 210 states have call predecessors, (212), 209 states have call successors, (212) [2024-12-02 11:25:44,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1588 transitions. [2024-12-02 11:25:44,135 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1588 transitions. Word has length 75 [2024-12-02 11:25:44,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:44,135 INFO L471 AbstractCegarLoop]: Abstraction has 1162 states and 1588 transitions. [2024-12-02 11:25:44,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 3 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-12-02 11:25:44,135 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1588 transitions. [2024-12-02 11:25:44,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-12-02 11:25:44,139 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:44,139 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2024-12-02 11:25:44,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 11:25:44,139 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:44,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:44,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1839172203, now seen corresponding path program 1 times [2024-12-02 11:25:44,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:44,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176359081] [2024-12-02 11:25:44,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:44,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:44,685 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-12-02 11:25:44,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:44,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176359081] [2024-12-02 11:25:44,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176359081] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:44,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:44,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:44,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4834160] [2024-12-02 11:25:44,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:44,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:44,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:44,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:44,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:44,687 INFO L87 Difference]: Start difference. First operand 1162 states and 1588 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-12-02 11:25:44,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:44,881 INFO L93 Difference]: Finished difference Result 2295 states and 3138 transitions. [2024-12-02 11:25:44,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:44,881 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 88 [2024-12-02 11:25:44,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:44,890 INFO L225 Difference]: With dead ends: 2295 [2024-12-02 11:25:44,891 INFO L226 Difference]: Without dead ends: 1141 [2024-12-02 11:25:44,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:44,896 INFO L435 NwaCegarLoop]: 984 mSDtfsCounter, 3 mSDsluCounter, 3914 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 4898 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:44,896 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 4898 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1141 states. [2024-12-02 11:25:44,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1141 to 1140. [2024-12-02 11:25:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1140 states, 850 states have (on average 1.3247058823529412) internal successors, (1126), 864 states have internal predecessors, (1126), 218 states have call successors, (218), 74 states have call predecessors, (218), 71 states have return successors, (212), 210 states have call predecessors, (212), 209 states have call successors, (212) [2024-12-02 11:25:44,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1140 states to 1140 states and 1556 transitions. [2024-12-02 11:25:44,976 INFO L78 Accepts]: Start accepts. Automaton has 1140 states and 1556 transitions. Word has length 88 [2024-12-02 11:25:44,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:44,977 INFO L471 AbstractCegarLoop]: Abstraction has 1140 states and 1556 transitions. [2024-12-02 11:25:44,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 5 states have internal predecessors, (59), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-12-02 11:25:44,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1140 states and 1556 transitions. [2024-12-02 11:25:44,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-12-02 11:25:44,980 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:44,980 INFO L218 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 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] [2024-12-02 11:25:44,980 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 11:25:44,980 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:44,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:44,981 INFO L85 PathProgramCache]: Analyzing trace with hash -703471364, now seen corresponding path program 1 times [2024-12-02 11:25:44,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:44,981 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537463498] [2024-12-02 11:25:44,981 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:44,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:45,331 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:25:45,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:45,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537463498] [2024-12-02 11:25:45,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537463498] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:25:45,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533663061] [2024-12-02 11:25:45,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:45,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:25:45,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:45,335 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:25:45,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:25:46,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:46,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 969 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:25:46,150 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:25:46,344 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-12-02 11:25:46,344 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:25:46,659 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-12-02 11:25:46,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533663061] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:25:46,660 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:25:46,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-12-02 11:25:46,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722364178] [2024-12-02 11:25:46,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:25:46,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:25:46,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:46,662 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:25:46,662 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:25:46,662 INFO L87 Difference]: Start difference. First operand 1140 states and 1556 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 11:25:46,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:46,965 INFO L93 Difference]: Finished difference Result 2429 states and 3342 transitions. [2024-12-02 11:25:46,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:25:46,966 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) Word has length 90 [2024-12-02 11:25:46,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:46,977 INFO L225 Difference]: With dead ends: 2429 [2024-12-02 11:25:46,977 INFO L226 Difference]: Without dead ends: 1297 [2024-12-02 11:25:46,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 177 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:25:46,982 INFO L435 NwaCegarLoop]: 983 mSDtfsCounter, 295 mSDsluCounter, 1011 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 1994 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:46,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [327 Valid, 1994 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:25:46,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1297 states. [2024-12-02 11:25:47,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1297 to 1258. [2024-12-02 11:25:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1258 states, 956 states have (on average 1.3430962343096233) internal successors, (1284), 970 states have internal predecessors, (1284), 230 states have call successors, (230), 74 states have call predecessors, (230), 71 states have return successors, (224), 222 states have call predecessors, (224), 221 states have call successors, (224) [2024-12-02 11:25:47,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1258 states to 1258 states and 1738 transitions. [2024-12-02 11:25:47,059 INFO L78 Accepts]: Start accepts. Automaton has 1258 states and 1738 transitions. Word has length 90 [2024-12-02 11:25:47,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:47,059 INFO L471 AbstractCegarLoop]: Abstraction has 1258 states and 1738 transitions. [2024-12-02 11:25:47,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 4 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (19), 4 states have call predecessors, (19), 4 states have call successors, (19) [2024-12-02 11:25:47,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1258 states and 1738 transitions. [2024-12-02 11:25:47,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 11:25:47,064 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:47,065 INFO L218 NwaCegarLoop]: trace histogram [4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:47,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:25:47,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 11:25:47,266 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:47,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:47,266 INFO L85 PathProgramCache]: Analyzing trace with hash 821600570, now seen corresponding path program 1 times [2024-12-02 11:25:47,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:47,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884598846] [2024-12-02 11:25:47,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:47,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:47,724 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-12-02 11:25:47,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:47,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884598846] [2024-12-02 11:25:47,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884598846] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:47,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:47,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:47,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614529850] [2024-12-02 11:25:47,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:47,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:47,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:47,726 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:47,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:47,726 INFO L87 Difference]: Start difference. First operand 1258 states and 1738 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:25:47,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:47,931 INFO L93 Difference]: Finished difference Result 2509 states and 3469 transitions. [2024-12-02 11:25:47,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:47,932 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 99 [2024-12-02 11:25:47,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:47,944 INFO L225 Difference]: With dead ends: 2509 [2024-12-02 11:25:47,944 INFO L226 Difference]: Without dead ends: 1259 [2024-12-02 11:25:47,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:47,951 INFO L435 NwaCegarLoop]: 978 mSDtfsCounter, 21 mSDsluCounter, 3870 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4848 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:47,951 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4848 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:47,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1259 states. [2024-12-02 11:25:48,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1259 to 1259. [2024-12-02 11:25:48,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1259 states, 957 states have (on average 1.341692789968652) internal successors, (1284), 971 states have internal predecessors, (1284), 230 states have call successors, (230), 74 states have call predecessors, (230), 71 states have return successors, (224), 222 states have call predecessors, (224), 221 states have call successors, (224) [2024-12-02 11:25:48,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1259 states to 1259 states and 1738 transitions. [2024-12-02 11:25:48,049 INFO L78 Accepts]: Start accepts. Automaton has 1259 states and 1738 transitions. Word has length 99 [2024-12-02 11:25:48,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:48,050 INFO L471 AbstractCegarLoop]: Abstraction has 1259 states and 1738 transitions. [2024-12-02 11:25:48,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 5 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2024-12-02 11:25:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1259 states and 1738 transitions. [2024-12-02 11:25:48,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-12-02 11:25:48,058 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:48,058 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:48,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 11:25:48,058 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:48,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:48,059 INFO L85 PathProgramCache]: Analyzing trace with hash 1722017856, now seen corresponding path program 1 times [2024-12-02 11:25:48,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:48,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240465768] [2024-12-02 11:25:48,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:48,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:48,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:48,731 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-12-02 11:25:48,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:48,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240465768] [2024-12-02 11:25:48,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240465768] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:25:48,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1138071797] [2024-12-02 11:25:48,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:48,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:25:48,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:25:48,734 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:25:48,737 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:25:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:49,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 1122 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 11:25:49,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:25:49,688 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-12-02 11:25:49,688 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:25:49,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1138071797] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:49,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:25:49,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 8 [2024-12-02 11:25:49,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398978678] [2024-12-02 11:25:49,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:49,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 11:25:49,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:49,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 11:25:49,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:25:49,690 INFO L87 Difference]: Start difference. First operand 1259 states and 1738 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 11:25:49,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:49,939 INFO L93 Difference]: Finished difference Result 2514 states and 3472 transitions. [2024-12-02 11:25:49,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 11:25:49,940 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-12-02 11:25:49,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:49,950 INFO L225 Difference]: With dead ends: 2514 [2024-12-02 11:25:49,950 INFO L226 Difference]: Without dead ends: 1251 [2024-12-02 11:25:49,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:25:49,956 INFO L435 NwaCegarLoop]: 981 mSDtfsCounter, 3 mSDsluCounter, 5862 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 6843 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:49,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 6843 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:49,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-12-02 11:25:50,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1251. [2024-12-02 11:25:50,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 951 states have (on average 1.3396424815983177) internal successors, (1274), 966 states have internal predecessors, (1274), 228 states have call successors, (228), 74 states have call predecessors, (228), 71 states have return successors, (221), 219 states have call predecessors, (221), 219 states have call successors, (221) [2024-12-02 11:25:50,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1723 transitions. [2024-12-02 11:25:50,020 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1723 transitions. Word has length 123 [2024-12-02 11:25:50,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:50,021 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1723 transitions. [2024-12-02 11:25:50,021 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 7 states have internal predecessors, (84), 3 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (14), 4 states have call predecessors, (14), 3 states have call successors, (14) [2024-12-02 11:25:50,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1723 transitions. [2024-12-02 11:25:50,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-12-02 11:25:50,028 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:50,028 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:50,041 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:25:50,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 11:25:50,229 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:50,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:50,229 INFO L85 PathProgramCache]: Analyzing trace with hash -374873949, now seen corresponding path program 1 times [2024-12-02 11:25:50,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:50,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376699369] [2024-12-02 11:25:50,230 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:50,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:50,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:50,483 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-12-02 11:25:50,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:50,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376699369] [2024-12-02 11:25:50,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376699369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:50,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:50,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:25:50,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680911719] [2024-12-02 11:25:50,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:50,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:25:50,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:50,485 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:25:50,485 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:25:50,485 INFO L87 Difference]: Start difference. First operand 1251 states and 1723 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:25:50,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:50,600 INFO L93 Difference]: Finished difference Result 2494 states and 3459 transitions. [2024-12-02 11:25:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:25:50,601 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 163 [2024-12-02 11:25:50,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:50,610 INFO L225 Difference]: With dead ends: 2494 [2024-12-02 11:25:50,610 INFO L226 Difference]: Without dead ends: 1251 [2024-12-02 11:25:50,615 INFO L434 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 [2024-12-02 11:25:50,615 INFO L435 NwaCegarLoop]: 973 mSDtfsCounter, 0 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:50,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1939 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:25:50,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1251 states. [2024-12-02 11:25:50,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1251 to 1251. [2024-12-02 11:25:50,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1251 states, 951 states have (on average 1.3333333333333333) internal successors, (1268), 966 states have internal predecessors, (1268), 228 states have call successors, (228), 74 states have call predecessors, (228), 71 states have return successors, (221), 219 states have call predecessors, (221), 219 states have call successors, (221) [2024-12-02 11:25:50,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1251 states to 1251 states and 1717 transitions. [2024-12-02 11:25:50,684 INFO L78 Accepts]: Start accepts. Automaton has 1251 states and 1717 transitions. Word has length 163 [2024-12-02 11:25:50,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:50,684 INFO L471 AbstractCegarLoop]: Abstraction has 1251 states and 1717 transitions. [2024-12-02 11:25:50,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:25:50,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1251 states and 1717 transitions. [2024-12-02 11:25:50,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-12-02 11:25:50,692 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:50,692 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:50,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 11:25:50,692 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:50,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:50,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1981904212, now seen corresponding path program 1 times [2024-12-02 11:25:50,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:50,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998049233] [2024-12-02 11:25:50,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:50,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:51,237 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-12-02 11:25:51,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:51,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998049233] [2024-12-02 11:25:51,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998049233] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:51,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:51,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:51,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988887039] [2024-12-02 11:25:51,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:51,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:51,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:51,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:51,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:51,239 INFO L87 Difference]: Start difference. First operand 1251 states and 1717 transitions. Second operand has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:25:51,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:51,366 INFO L93 Difference]: Finished difference Result 1333 states and 1816 transitions. [2024-12-02 11:25:51,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) Word has length 166 [2024-12-02 11:25:51,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:51,376 INFO L225 Difference]: With dead ends: 1333 [2024-12-02 11:25:51,376 INFO L226 Difference]: Without dead ends: 1102 [2024-12-02 11:25:51,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:51,378 INFO L435 NwaCegarLoop]: 977 mSDtfsCounter, 0 mSDsluCounter, 3890 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4867 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:51,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4867 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:51,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-12-02 11:25:51,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 1102. [2024-12-02 11:25:51,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 845 states have (on average 1.3420118343195266) internal successors, (1134), 859 states have internal predecessors, (1134), 194 states have call successors, (194), 64 states have call predecessors, (194), 62 states have return successors, (189), 187 states have call predecessors, (189), 187 states have call successors, (189) [2024-12-02 11:25:51,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1517 transitions. [2024-12-02 11:25:51,438 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1517 transitions. Word has length 166 [2024-12-02 11:25:51,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:51,439 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1517 transitions. [2024-12-02 11:25:51,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.166666666666668) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (18), 2 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:25:51,439 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1517 transitions. [2024-12-02 11:25:51,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 11:25:51,447 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:25:51,447 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:51,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 11:25:51,447 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:25:51,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:25:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1192004827, now seen corresponding path program 1 times [2024-12-02 11:25:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:25:51,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628792129] [2024-12-02 11:25:51,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:25:51,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:25:51,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:25:51,959 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 11:25:51,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:25:51,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628792129] [2024-12-02 11:25:51,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628792129] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:25:51,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:25:51,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 11:25:51,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651980169] [2024-12-02 11:25:51,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:25:51,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 11:25:51,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:25:51,961 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 11:25:51,961 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:51,962 INFO L87 Difference]: Start difference. First operand 1102 states and 1517 transitions. Second operand has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 11:25:52,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:25:52,125 INFO L93 Difference]: Finished difference Result 1212 states and 1652 transitions. [2024-12-02 11:25:52,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 11:25:52,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) Word has length 175 [2024-12-02 11:25:52,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:25:52,128 INFO L225 Difference]: With dead ends: 1212 [2024-12-02 11:25:52,128 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 11:25:52,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 11:25:52,132 INFO L435 NwaCegarLoop]: 952 mSDtfsCounter, 0 mSDsluCounter, 3798 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4750 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:25:52,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4750 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:25:52,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 11:25:52,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 11:25:52,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 11:25:52,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 11:25:52,134 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 175 [2024-12-02 11:25:52,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:25:52,135 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 11:25:52,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.666666666666668) internal successors, (112), 5 states have internal predecessors, (112), 2 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (20), 3 states have call predecessors, (20), 2 states have call successors, (20) [2024-12-02 11:25:52,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 11:25:52,135 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 11:25:52,138 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 11:25:52,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:25:52,142 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:25:52,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 11:26:01,971 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 11:26:01,984 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~retval~5 [2024-12-02 11:26:01,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_uinput_fops_file_operations~0 [2024-12-02 11:26:01,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_uinput_fops_file_operations~0 [2024-12-02 11:26:01,985 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~ldv_s_uinput_fops_file_operations~0 [2024-12-02 11:26:01,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 11:26:01 BoogieIcfgContainer [2024-12-02 11:26:01,986 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 11:26:01,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 11:26:01,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 11:26:01,987 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 11:26:01,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:25:34" (3/4) ... [2024-12-02 11:26:01,990 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#12 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#11 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#10 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uinput_ioctl_handler [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#7 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#6 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#9 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#8 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#13 [2024-12-02 11:26:01,995 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __bad_percpu_size [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_event_size [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_lock_interruptible_mutex_of_uinput_device [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uinput_ff_upload_from_user [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uinput_destroy_device [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_abs_get_max [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __wake_up [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure variable_test_bit [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure get_current [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uinput_request_done [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure PTR_ERR [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure signal_pending [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_lock_interruptible [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure constant_test_bit [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_abs_get_min [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure is_compat_task [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kfree [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure prepare_to_wait [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_abs_get_flat [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure mutex_unlock [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure input_alloc_absinfo [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure kzalloc [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_lock [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_check_return_value [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uinput_request_find [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __init_waitqueue_head [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure set_bit [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure spin_unlock [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_handler_precall [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_mutex_unlock_mutex_of_uinput_device [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure schedule [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#1 [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#0 [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#3 [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#2 [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#5 [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure #Ultimate.C_memcpy#4 [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-12-02 11:26:01,996 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure finish_wait [2024-12-02 11:26:01,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure uinput_allocate_device [2024-12-02 11:26:01,997 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure IS_ERR [2024-12-02 11:26:02,021 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 227 nodes and edges [2024-12-02 11:26:02,023 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 93 nodes and edges [2024-12-02 11:26:02,025 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-12-02 11:26:02,027 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-02 11:26:02,029 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 11:26:02,031 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 11:26:02,067 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(ldv_mutex_mutex_of_uinput_device) == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_mutex_of_uinput_device == 2)) && (ldv_mutex_lock == 1)) [2024-12-02 11:26:02,157 WARN L141 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(ldv_mutex_mutex_of_uinput_device) == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_mutex_of_uinput_device == 2)) && (ldv_mutex_lock == 1)) [2024-12-02 11:26:02,206 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 11:26:02,206 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 11:26:02,206 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 11:26:02,208 INFO L158 Benchmark]: Toolchain (without parser) took 43382.91ms. Allocated memory was 142.6MB in the beginning and 335.5MB in the end (delta: 192.9MB). Free memory was 111.2MB in the beginning and 217.6MB in the end (delta: -106.4MB). Peak memory consumption was 70.8MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,208 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 11:26:02,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1325.03ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 62.8MB in the end (delta: 48.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 165.95ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 96.7MB in the end (delta: -33.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,209 INFO L158 Benchmark]: Boogie Preprocessor took 369.57ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 96.7MB in the beginning and 259.5MB in the end (delta: -162.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,209 INFO L158 Benchmark]: RCFGBuilder took 13742.67ms. Allocated memory is still 310.4MB. Free memory was 259.5MB in the beginning and 125.8MB in the end (delta: 133.7MB). Peak memory consumption was 135.5MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,209 INFO L158 Benchmark]: TraceAbstraction took 27552.25ms. Allocated memory was 310.4MB in the beginning and 335.5MB in the end (delta: 25.2MB). Free memory was 125.8MB in the beginning and 251.8MB in the end (delta: -126.1MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,209 INFO L158 Benchmark]: Witness Printer took 219.94ms. Allocated memory is still 335.5MB. Free memory was 251.8MB in the beginning and 217.6MB in the end (delta: 34.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 11:26:02,211 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1325.03ms. Allocated memory is still 142.6MB. Free memory was 111.2MB in the beginning and 62.8MB in the end (delta: 48.5MB). Peak memory consumption was 73.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 165.95ms. Allocated memory is still 142.6MB. Free memory was 62.8MB in the beginning and 96.7MB in the end (delta: -33.9MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 369.57ms. Allocated memory was 142.6MB in the beginning and 310.4MB in the end (delta: 167.8MB). Free memory was 96.7MB in the beginning and 259.5MB in the end (delta: -162.8MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * RCFGBuilder took 13742.67ms. Allocated memory is still 310.4MB. Free memory was 259.5MB in the beginning and 125.8MB in the end (delta: 133.7MB). Peak memory consumption was 135.5MB. Max. memory is 16.1GB. * TraceAbstraction took 27552.25ms. Allocated memory was 310.4MB in the beginning and 335.5MB in the end (delta: 25.2MB). Free memory was 125.8MB in the beginning and 251.8MB in the end (delta: -126.1MB). Peak memory consumption was 98.8MB. Max. memory is 16.1GB. * Witness Printer took 219.94ms. Allocated memory is still 335.5MB. Free memory was 251.8MB in the beginning and 217.6MB in the end (delta: 34.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3073]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [3073] - GenericResultAtLocation [Line: 3087]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [3087-3088] - GenericResultAtLocation [Line: 3102]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [3102] - GenericResultAtLocation [Line: 3105]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3105] - GenericResultAtLocation [Line: 3108]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3108] - GenericResultAtLocation [Line: 3111]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [3111] - GenericResultAtLocation [Line: 3173]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [3173] - GenericResultAtLocation [Line: 3176]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3176] - GenericResultAtLocation [Line: 3179]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3179] - GenericResultAtLocation [Line: 3182]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [3182] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~retval~5 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_uinput_fops_file_operations~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_uinput_fops_file_operations~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~ldv_s_uinput_fops_file_operations~0 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 4914]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 58 procedures, 780 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.6s, OverallIterations: 15, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4402 SdHoareTripleChecker+Valid, 5.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4317 mSDsluCounter, 51147 SdHoareTripleChecker+Invalid, 5.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 35721 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 413 IncrementalHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 15426 mSDtfsCounter, 413 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 328 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1409occurred in iteration=4, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 71 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1447 NumberOfCodeBlocks, 1447 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1519 ConstructedInterpolants, 0 QuantifiedInterpolants, 1991 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2091 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 302/316 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4052]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_mutex_of_uinput_device == 2)) && (ldv_mutex_lock == 1)) - InvariantResult [Line: 3902]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_mutex_of_uinput_device == 2)) && (ldv_mutex_lock == 1)) - InvariantResult [Line: 4773]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_mutex_of_uinput_device == 1)) - InvariantResult [Line: 3855]: Location Invariant Derived location invariant: ((((\old(ldv_mutex_mutex_of_uinput_device) == 1) && (1 == ldv_mutex_mutex_of_device)) && (ldv_mutex_mutex_of_uinput_device == 2)) && (ldv_mutex_lock == 1)) - InvariantResult [Line: 4225]: Location Invariant Derived location invariant: ((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_mutex_of_uinput_device == 1)) && (retval == 0)) - InvariantResult [Line: 4201]: Location Invariant Derived location invariant: ((((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_lock == 1)) && (ldv_mutex_mutex_of_uinput_device == 1)) && (retval == 0)) - InvariantResult [Line: 4143]: Location Invariant Derived location invariant: (((1 == ldv_mutex_mutex_of_device) && (ldv_mutex_mutex_of_uinput_device == 2)) && (ldv_mutex_lock == 1)) RESULT: Ultimate proved your program to be correct! [2024-12-02 11:26:02,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d9304676-bbea-41b8-a5be-6148ed0dcb17/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE