./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.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_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB --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 aa00a102435cd9be2574d2e777aad2e91126f080f8422a74b94328a4b8d020d8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:10,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:10,658 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-27 23:31:10,672 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:10,672 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:10,718 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:10,719 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:10,720 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:10,720 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:10,721 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:10,721 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:10,721 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:10,722 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:10,722 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:10,723 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:10,724 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:10,724 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:10,724 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:10,724 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:10,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:10,726 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:10,726 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:10,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:10,726 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:10,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:10,727 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:10,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:10,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:10,727 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:10,727 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:10,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:10,728 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:10,728 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:10,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:10,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:10,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:10,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:10,730 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:10,730 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:10,730 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:10,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:10,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:10,730 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:10,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:10,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:10,731 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_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB 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 -> aa00a102435cd9be2574d2e777aad2e91126f080f8422a74b94328a4b8d020d8 [2024-11-27 23:31:11,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:11,162 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:11,165 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:11,167 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:11,167 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:11,168 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-27 23:31:14,637 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/data/0d49ba285/2e5c146836f443cda62a845ea4ae18d2/FLAG465238914 [2024-11-27 23:31:15,268 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:15,268 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-27 23:31:15,315 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/data/0d49ba285/2e5c146836f443cda62a845ea4ae18d2/FLAG465238914 [2024-11-27 23:31:15,348 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/data/0d49ba285/2e5c146836f443cda62a845ea4ae18d2 [2024-11-27 23:31:15,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:15,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:15,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:15,356 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:15,362 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:15,365 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:15" (1/1) ... [2024-11-27 23:31:15,366 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69064c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:15, skipping insertion in model container [2024-11-27 23:31:15,367 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:15" (1/1) ... [2024-11-27 23:31:15,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:16,703 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_4154ebc6-7219-48c2-b25f-bdf34850ea19/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i[120657,120670] [2024-11-27 23:31:16,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:16,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:16,959 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [2762] [2024-11-27 23:31:16,962 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [2769] [2024-11-27 23:31:17,186 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_4154ebc6-7219-48c2-b25f-bdf34850ea19/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i[120657,120670] [2024-11-27 23:31:17,205 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:17,285 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:17,287 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17 WrapperNode [2024-11-27 23:31:17,287 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:17,289 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:17,289 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:17,289 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:17,297 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,468 INFO L138 Inliner]: procedures = 150, calls = 795, calls flagged for inlining = 63, calls inlined = 45, statements flattened = 1727 [2024-11-27 23:31:17,468 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:17,469 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:17,469 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:17,469 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:17,488 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,505 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,761 INFO L175 MemorySlicer]: Split 400 memory accesses to 11 slices as follows [2, 1, 54, 14, 4, 4, 27, 9, 267, 10, 8]. 67 percent of accesses are in the largest equivalence class. The 84 initializations are split as follows [2, 0, 9, 14, 4, 0, 8, 3, 26, 10, 8]. The 187 writes are split as follows [0, 0, 41, 0, 0, 2, 14, 0, 130, 0, 0]. [2024-11-27 23:31:17,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,762 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,844 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,847 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,864 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,886 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,897 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,924 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:17,928 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:17,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:17,933 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:17,934 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (1/1) ... [2024-11-27 23:31:17,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:17,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:17,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:17,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:18,021 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-27 23:31:18,023 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-27 23:31:18,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-27 23:31:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-27 23:31:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-27 23:31:18,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-27 23:31:18,025 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-27 23:31:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-27 23:31:18,026 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-27 23:31:18,026 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2024-11-27 23:31:18,027 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-27 23:31:18,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-27 23:31:18,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-27 23:31:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-27 23:31:18,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-27 23:31:18,031 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-27 23:31:18,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-27 23:31:18,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-27 23:31:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure aem_init_ipmi_data [2024-11-27 23:31:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_init_ipmi_data [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2024-11-27 23:31:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-27 23:31:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-27 23:31:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-27 23:31:18,033 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-27 23:31:18,033 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-27 23:31:18,034 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-27 23:31:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-27 23:31:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-27 23:31:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-27 23:31:18,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-27 23:31:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-27 23:31:18,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-27 23:31:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-27 23:31:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-27 23:31:18,039 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-27 23:31:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-27 23:31:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-27 23:31:18,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-27 23:31:18,040 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:31:18,041 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:31:18,041 INFO L130 BoogieDeclarations]: Found specification of procedure aem_delete [2024-11-27 23:31:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_delete [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-27 23:31:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file [2024-11-27 23:31:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_get [2024-11-27 23:31:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_get [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2024-11-27 23:31:18,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2024-11-27 23:31:18,042 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-27 23:31:18,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-27 23:31:18,043 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-27 23:31:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-27 23:31:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-27 23:31:18,046 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-27 23:31:18,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_6 [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_6 [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure aem_send_message [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_send_message [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure aem_register_sensors [2024-11-27 23:31:18,048 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_register_sensors [2024-11-27 23:31:18,048 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-27 23:31:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_put [2024-11-27 23:31:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_put [2024-11-27 23:31:18,049 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2024-11-27 23:31:18,049 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2024-11-27 23:31:18,050 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-27 23:31:18,050 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-27 23:31:18,052 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-27 23:31:18,052 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-27 23:31:18,052 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-27 23:31:18,053 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-27 23:31:18,053 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-27 23:31:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2024-11-27 23:31:18,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-27 23:31:18,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-27 23:31:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure aem_remove_sensors [2024-11-27 23:31:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_remove_sensors [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2024-11-27 23:31:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2024-11-27 23:31:18,055 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-27 23:31:18,055 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-27 23:31:18,795 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:18,798 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:18,875 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-27 23:31:27,356 INFO L? ?]: Removed 609 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:27,356 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:27,405 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:27,405 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:31:27,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:27 BoogieIcfgContainer [2024-11-27 23:31:27,406 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:27,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:27,410 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:27,420 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:27,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:15" (1/3) ... [2024-11-27 23:31:27,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418abf39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:27, skipping insertion in model container [2024-11-27 23:31:27,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:17" (2/3) ... [2024-11-27 23:31:27,422 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@418abf39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:27, skipping insertion in model container [2024-11-27 23:31:27,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:27" (3/3) ... [2024-11-27 23:31:27,423 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-27 23:31:27,443 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:27,445 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i that has 39 procedures, 500 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-11-27 23:31:27,556 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:27,575 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;@7276d4d3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:27,577 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:31:27,585 INFO L276 IsEmpty]: Start isEmpty. Operand has 499 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 360 states have internal predecessors, (441), 113 states have call successors, (113), 38 states have call predecessors, (113), 37 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) [2024-11-27 23:31:27,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-27 23:31:27,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:27,639 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:27,640 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:27,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:27,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1973896858, now seen corresponding path program 1 times [2024-11-27 23:31:27,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:27,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774881427] [2024-11-27 23:31:27,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:27,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:30,610 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-27 23:31:30,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:30,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774881427] [2024-11-27 23:31:30,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774881427] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:31:30,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514707894] [2024-11-27 23:31:30,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:30,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:31:30,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:30,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:31:30,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:31:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:33,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 3498 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:31:33,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:31:33,422 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-27 23:31:33,422 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:31:33,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514707894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:33,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:31:33,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:31:33,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552903645] [2024-11-27 23:31:33,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:33,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:31:33,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:33,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:31:33,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:33,472 INFO L87 Difference]: Start difference. First operand has 499 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 360 states have internal predecessors, (441), 113 states have call successors, (113), 38 states have call predecessors, (113), 37 states have return successors, (107), 107 states have call predecessors, (107), 107 states have call successors, (107) Second operand has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-27 23:31:33,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:33,618 INFO L93 Difference]: Finished difference Result 994 states and 1348 transitions. [2024-11-27 23:31:33,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:31:33,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 297 [2024-11-27 23:31:33,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:33,645 INFO L225 Difference]: With dead ends: 994 [2024-11-27 23:31:33,645 INFO L226 Difference]: Without dead ends: 479 [2024-11-27 23:31:33,657 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 298 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:31:33,664 INFO L435 NwaCegarLoop]: 658 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 658 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:33,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:33,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-27 23:31:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2024-11-27 23:31:33,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 336 states have (on average 1.2470238095238095) internal successors, (419), 342 states have internal predecessors, (419), 105 states have call successors, (105), 37 states have call predecessors, (105), 37 states have return successors, (105), 105 states have call predecessors, (105), 105 states have call successors, (105) [2024-11-27 23:31:33,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 629 transitions. [2024-11-27 23:31:33,770 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 629 transitions. Word has length 297 [2024-11-27 23:31:33,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:33,774 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 629 transitions. [2024-11-27 23:31:33,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 62.0) internal successors, (124), 2 states have internal predecessors, (124), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-27 23:31:33,775 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 629 transitions. [2024-11-27 23:31:33,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-27 23:31:33,794 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:33,794 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:33,813 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:31:33,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:31:33,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:33,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:33,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1602422449, now seen corresponding path program 1 times [2024-11-27 23:31:33,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:33,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563377597] [2024-11-27 23:31:34,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:34,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:35,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:36,012 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-27 23:31:36,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:36,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563377597] [2024-11-27 23:31:36,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563377597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:36,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:36,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:36,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144240561] [2024-11-27 23:31:36,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:36,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:36,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:36,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:36,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:36,020 INFO L87 Difference]: Start difference. First operand 479 states and 629 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-27 23:31:36,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:36,244 INFO L93 Difference]: Finished difference Result 996 states and 1306 transitions. [2024-11-27 23:31:36,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:36,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 296 [2024-11-27 23:31:36,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:36,255 INFO L225 Difference]: With dead ends: 996 [2024-11-27 23:31:36,257 INFO L226 Difference]: Without dead ends: 554 [2024-11-27 23:31:36,260 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 [2024-11-27 23:31:36,260 INFO L435 NwaCegarLoop]: 643 mSDtfsCounter, 138 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1211 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:36,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1211 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:36,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-27 23:31:36,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-27 23:31:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 396 states have (on average 1.2601010101010102) internal successors, (499), 402 states have internal predecessors, (499), 113 states have call successors, (113), 44 states have call predecessors, (113), 44 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:31:36,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 725 transitions. [2024-11-27 23:31:36,339 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 725 transitions. Word has length 296 [2024-11-27 23:31:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:36,340 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 725 transitions. [2024-11-27 23:31:36,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-27 23:31:36,341 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 725 transitions. [2024-11-27 23:31:36,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-27 23:31:36,356 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:36,356 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:36,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:31:36,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:36,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:36,358 INFO L85 PathProgramCache]: Analyzing trace with hash -542274140, now seen corresponding path program 1 times [2024-11-27 23:31:36,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:36,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116582089] [2024-11-27 23:31:36,359 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:36,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:38,399 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2024-11-27 23:31:38,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:38,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116582089] [2024-11-27 23:31:38,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116582089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:38,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:38,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:38,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317054103] [2024-11-27 23:31:38,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:38,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:38,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:38,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:38,404 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:38,405 INFO L87 Difference]: Start difference. First operand 554 states and 725 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-27 23:31:38,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:38,526 INFO L93 Difference]: Finished difference Result 1070 states and 1402 transitions. [2024-11-27 23:31:38,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:38,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 308 [2024-11-27 23:31:38,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:38,532 INFO L225 Difference]: With dead ends: 1070 [2024-11-27 23:31:38,532 INFO L226 Difference]: Without dead ends: 556 [2024-11-27 23:31:38,538 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 [2024-11-27 23:31:38,539 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:38,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:38,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-27 23:31:38,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2024-11-27 23:31:38,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 397 states have (on average 1.2594458438287153) internal successors, (500), 403 states have internal predecessors, (500), 113 states have call successors, (113), 44 states have call predecessors, (113), 44 states have return successors, (113), 113 states have call predecessors, (113), 113 states have call successors, (113) [2024-11-27 23:31:38,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 726 transitions. [2024-11-27 23:31:38,584 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 726 transitions. Word has length 308 [2024-11-27 23:31:38,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:38,587 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 726 transitions. [2024-11-27 23:31:38,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 2 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2024-11-27 23:31:38,587 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 726 transitions. [2024-11-27 23:31:38,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-27 23:31:38,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:38,596 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:38,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:31:38,597 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:38,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:38,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1280992752, now seen corresponding path program 1 times [2024-11-27 23:31:38,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:38,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83651497] [2024-11-27 23:31:38,600 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:38,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:41,879 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-27 23:31:41,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:41,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83651497] [2024-11-27 23:31:41,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83651497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:41,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:41,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:41,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137589597] [2024-11-27 23:31:41,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:41,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:41,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:41,882 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:41,882 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:41,883 INFO L87 Difference]: Start difference. First operand 555 states and 726 transitions. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-27 23:31:45,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:31:50,007 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:31:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:53,239 INFO L93 Difference]: Finished difference Result 1585 states and 2089 transitions. [2024-11-27 23:31:53,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:31:53,241 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 311 [2024-11-27 23:31:53,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:53,264 INFO L225 Difference]: With dead ends: 1585 [2024-11-27 23:31:53,264 INFO L226 Difference]: Without dead ends: 1583 [2024-11-27 23:31:53,266 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:53,266 INFO L435 NwaCegarLoop]: 688 mSDtfsCounter, 1119 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2127 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:53,269 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 2127 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 467 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-27 23:31:53,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-11-27 23:31:53,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2024-11-27 23:31:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1142 states have (on average 1.2670753064798599) internal successors, (1447), 1160 states have internal predecessors, (1447), 313 states have call successors, (313), 127 states have call predecessors, (313), 127 states have return successors, (327), 313 states have call predecessors, (327), 313 states have call successors, (327) [2024-11-27 23:31:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2087 transitions. [2024-11-27 23:31:53,445 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2087 transitions. Word has length 311 [2024-11-27 23:31:53,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:53,446 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2087 transitions. [2024-11-27 23:31:53,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 3 states have call successors, (32), 2 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-27 23:31:53,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2087 transitions. [2024-11-27 23:31:53,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-27 23:31:53,458 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:53,458 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:53,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:31:53,459 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:53,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:53,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1943521491, now seen corresponding path program 1 times [2024-11-27 23:31:53,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:53,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090597649] [2024-11-27 23:31:53,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:53,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:54,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:55,272 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2024-11-27 23:31:55,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:55,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090597649] [2024-11-27 23:31:55,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090597649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:55,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:55,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:31:55,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478299124] [2024-11-27 23:31:55,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:55,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:31:55,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:55,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:31:55,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:55,276 INFO L87 Difference]: Start difference. First operand 1583 states and 2087 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-27 23:31:55,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:55,460 INFO L93 Difference]: Finished difference Result 3134 states and 4138 transitions. [2024-11-27 23:31:55,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:31:55,461 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 329 [2024-11-27 23:31:55,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:55,474 INFO L225 Difference]: With dead ends: 3134 [2024-11-27 23:31:55,474 INFO L226 Difference]: Without dead ends: 1595 [2024-11-27 23:31:55,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:31:55,481 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:55,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2500 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:31:55,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2024-11-27 23:31:55,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1595. [2024-11-27 23:31:55,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1151 states have (on average 1.26498696785404) internal successors, (1456), 1169 states have internal predecessors, (1456), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:31:55,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2102 transitions. [2024-11-27 23:31:55,612 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2102 transitions. Word has length 329 [2024-11-27 23:31:55,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:55,615 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2102 transitions. [2024-11-27 23:31:55,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 4 states have internal predecessors, (141), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-27 23:31:55,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2102 transitions. [2024-11-27 23:31:55,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-27 23:31:55,624 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:55,624 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:55,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:31:55,625 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:55,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:55,626 INFO L85 PathProgramCache]: Analyzing trace with hash -222880935, now seen corresponding path program 1 times [2024-11-27 23:31:55,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:55,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796468740] [2024-11-27 23:31:55,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:55,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:31:57,451 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-27 23:31:57,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:31:57,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796468740] [2024-11-27 23:31:57,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796468740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:31:57,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:31:57,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:31:57,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380897906] [2024-11-27 23:31:57,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:31:57,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:31:57,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:31:57,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:31:57,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:31:57,455 INFO L87 Difference]: Start difference. First operand 1595 states and 2102 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-27 23:31:57,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:31:57,598 INFO L93 Difference]: Finished difference Result 3152 states and 4159 transitions. [2024-11-27 23:31:57,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:31:57,599 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 346 [2024-11-27 23:31:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:31:57,615 INFO L225 Difference]: With dead ends: 3152 [2024-11-27 23:31:57,616 INFO L226 Difference]: Without dead ends: 1601 [2024-11-27 23:31:57,622 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 [2024-11-27 23:31:57,623 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:31:57,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:31:57,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-27 23:31:57,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1598. [2024-11-27 23:31:57,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1598 states, 1154 states have (on average 1.2642980935875217) internal successors, (1459), 1172 states have internal predecessors, (1459), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:31:57,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2105 transitions. [2024-11-27 23:31:57,742 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2105 transitions. Word has length 346 [2024-11-27 23:31:57,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:31:57,743 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2105 transitions. [2024-11-27 23:31:57,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-27 23:31:57,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2105 transitions. [2024-11-27 23:31:57,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-27 23:31:57,752 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:57,753 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:31:57,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:31:57,753 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:57,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash 831068044, now seen corresponding path program 1 times [2024-11-27 23:31:57,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:57,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563191992] [2024-11-27 23:31:57,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:57,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:00,946 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:00,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:00,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563191992] [2024-11-27 23:32:00,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563191992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:00,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [275954099] [2024-11-27 23:32:00,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:00,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:00,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:00,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:00,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:32:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:03,423 INFO L256 TraceCheckSpWp]: Trace formula consists of 3760 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:32:03,441 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:03,663 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:03,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [275954099] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:03,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:03,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-27 23:32:03,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250016486] [2024-11-27 23:32:03,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:03,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:32:03,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:03,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:32:03,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:03,671 INFO L87 Difference]: Start difference. First operand 1598 states and 2105 transitions. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-27 23:32:05,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:05,129 INFO L93 Difference]: Finished difference Result 3158 states and 4165 transitions. [2024-11-27 23:32:05,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:05,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 353 [2024-11-27 23:32:05,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:05,146 INFO L225 Difference]: With dead ends: 3158 [2024-11-27 23:32:05,146 INFO L226 Difference]: Without dead ends: 1604 [2024-11-27 23:32:05,154 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:05,155 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:05,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-27 23:32:05,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-27 23:32:05,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2024-11-27 23:32:05,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1604 states, 1160 states have (on average 1.2629310344827587) internal successors, (1465), 1178 states have internal predecessors, (1465), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:05,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2111 transitions. [2024-11-27 23:32:05,300 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2111 transitions. Word has length 353 [2024-11-27 23:32:05,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:05,300 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2111 transitions. [2024-11-27 23:32:05,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-27 23:32:05,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2111 transitions. [2024-11-27 23:32:05,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-27 23:32:05,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:05,311 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:05,331 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 23:32:05,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 23:32:05,512 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:05,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:05,513 INFO L85 PathProgramCache]: Analyzing trace with hash 672402133, now seen corresponding path program 1 times [2024-11-27 23:32:05,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:05,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653401478] [2024-11-27 23:32:05,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:05,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:06,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:07,156 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:07,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:07,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653401478] [2024-11-27 23:32:07,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653401478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:07,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747715930] [2024-11-27 23:32:07,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:07,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:07,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:07,159 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:07,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:32:10,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:10,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 3901 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:32:10,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:10,203 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-27 23:32:10,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:10,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747715930] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:10,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:10,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 23:32:10,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657983092] [2024-11-27 23:32:10,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:10,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:32:10,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:10,206 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:32:10,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:10,207 INFO L87 Difference]: Start difference. First operand 1604 states and 2111 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-27 23:32:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:10,512 INFO L93 Difference]: Finished difference Result 3170 states and 4177 transitions. [2024-11-27 23:32:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:10,513 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 346 [2024-11-27 23:32:10,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:10,527 INFO L225 Difference]: With dead ends: 3170 [2024-11-27 23:32:10,527 INFO L226 Difference]: Without dead ends: 1610 [2024-11-27 23:32:10,533 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:10,534 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:10,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1872 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:32:10,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2024-11-27 23:32:10,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1610. [2024-11-27 23:32:10,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1166 states have (on average 1.2615780445969125) internal successors, (1471), 1184 states have internal predecessors, (1471), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:10,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2024-11-27 23:32:10,628 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 346 [2024-11-27 23:32:10,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:10,629 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2024-11-27 23:32:10,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-27 23:32:10,629 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2024-11-27 23:32:10,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-27 23:32:10,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:10,637 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:10,660 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:32:10,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 23:32:10,838 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:10,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:10,843 INFO L85 PathProgramCache]: Analyzing trace with hash 756519901, now seen corresponding path program 1 times [2024-11-27 23:32:10,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:10,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985187289] [2024-11-27 23:32:10,844 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:10,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:12,357 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:12,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:12,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985187289] [2024-11-27 23:32:12,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985187289] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:12,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [524212646] [2024-11-27 23:32:12,357 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:12,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:12,358 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:12,360 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:12,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-27 23:32:14,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:14,618 INFO L256 TraceCheckSpWp]: Trace formula consists of 3905 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:32:14,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-27 23:32:14,746 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:14,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [524212646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:14,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:14,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 23:32:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155443909] [2024-11-27 23:32:14,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:14,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:32:14,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:14,750 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:32:14,750 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:14,751 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-27 23:32:15,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:15,436 INFO L93 Difference]: Finished difference Result 3182 states and 4189 transitions. [2024-11-27 23:32:15,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:15,437 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 348 [2024-11-27 23:32:15,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:15,453 INFO L225 Difference]: With dead ends: 3182 [2024-11-27 23:32:15,453 INFO L226 Difference]: Without dead ends: 1616 [2024-11-27 23:32:15,460 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:15,462 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1872 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:15,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1872 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:15,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-27 23:32:15,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1610. [2024-11-27 23:32:15,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1166 states have (on average 1.2615780445969125) internal successors, (1471), 1184 states have internal predecessors, (1471), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:15,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2024-11-27 23:32:15,740 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 348 [2024-11-27 23:32:15,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:15,741 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2024-11-27 23:32:15,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-27 23:32:15,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2024-11-27 23:32:15,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-27 23:32:15,777 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:15,778 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:15,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-27 23:32:15,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:15,990 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:15,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:15,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1235233364, now seen corresponding path program 1 times [2024-11-27 23:32:15,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:15,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960739195] [2024-11-27 23:32:15,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:15,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:17,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:19,114 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:19,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:19,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960739195] [2024-11-27 23:32:19,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960739195] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:19,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235093293] [2024-11-27 23:32:19,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:19,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:19,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:19,118 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:19,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-27 23:32:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:21,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 3764 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-27 23:32:21,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:21,939 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:21,939 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:21,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235093293] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:21,939 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:21,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-27 23:32:21,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774167799] [2024-11-27 23:32:21,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:21,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:32:21,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:21,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:32:21,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:21,942 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-27 23:32:23,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:32:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:24,242 INFO L93 Difference]: Finished difference Result 3182 states and 4189 transitions. [2024-11-27 23:32:24,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:24,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 355 [2024-11-27 23:32:24,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:24,257 INFO L225 Difference]: With dead ends: 3182 [2024-11-27 23:32:24,257 INFO L226 Difference]: Without dead ends: 1616 [2024-11-27 23:32:24,263 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:32:24,264 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1871 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:24,264 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 23:32:24,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-27 23:32:24,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1610. [2024-11-27 23:32:24,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1166 states have (on average 1.2615780445969125) internal successors, (1471), 1184 states have internal predecessors, (1471), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:24,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2024-11-27 23:32:24,352 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 355 [2024-11-27 23:32:24,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:24,353 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2024-11-27 23:32:24,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.5) internal successors, (158), 4 states have internal predecessors, (158), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-27 23:32:24,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2024-11-27 23:32:24,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-27 23:32:24,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:24,358 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:24,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:24,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:24,559 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:24,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:24,559 INFO L85 PathProgramCache]: Analyzing trace with hash 327359364, now seen corresponding path program 1 times [2024-11-27 23:32:24,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:24,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080609124] [2024-11-27 23:32:24,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:24,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:25,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-27 23:32:25,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:25,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080609124] [2024-11-27 23:32:25,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1080609124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:25,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:25,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:25,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791827121] [2024-11-27 23:32:25,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:25,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:25,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:25,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:25,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:25,617 INFO L87 Difference]: Start difference. First operand 1610 states and 2117 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-27 23:32:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:25,959 INFO L93 Difference]: Finished difference Result 3179 states and 4186 transitions. [2024-11-27 23:32:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:25,960 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 350 [2024-11-27 23:32:25,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:25,973 INFO L225 Difference]: With dead ends: 3179 [2024-11-27 23:32:25,973 INFO L226 Difference]: Without dead ends: 1613 [2024-11-27 23:32:25,979 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 [2024-11-27 23:32:25,980 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 0 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:25,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:32:25,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2024-11-27 23:32:26,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1613. [2024-11-27 23:32:26,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1613 states, 1169 states have (on average 1.260906757912746) internal successors, (1474), 1187 states have internal predecessors, (1474), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2120 transitions. [2024-11-27 23:32:26,061 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2120 transitions. Word has length 350 [2024-11-27 23:32:26,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:26,062 INFO L471 AbstractCegarLoop]: Abstraction has 1613 states and 2120 transitions. [2024-11-27 23:32:26,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 2 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2024-11-27 23:32:26,063 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2120 transitions. [2024-11-27 23:32:26,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-27 23:32:26,067 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:26,067 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:26,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 23:32:26,067 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:26,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:26,068 INFO L85 PathProgramCache]: Analyzing trace with hash -685579314, now seen corresponding path program 1 times [2024-11-27 23:32:26,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:26,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021009458] [2024-11-27 23:32:26,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:26,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:27,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:27,967 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-27 23:32:27,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:27,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021009458] [2024-11-27 23:32:27,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021009458] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:27,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385195907] [2024-11-27 23:32:27,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:27,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:27,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:27,971 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:27,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-27 23:32:30,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:30,933 INFO L256 TraceCheckSpWp]: Trace formula consists of 3978 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:32:30,943 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:31,031 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:31,031 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-27 23:32:32,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385195907] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:32,404 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:32,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-27 23:32:32,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416182544] [2024-11-27 23:32:32,405 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:32,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:32:32,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:32,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:32:32,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:32,407 INFO L87 Difference]: Start difference. First operand 1613 states and 2120 transitions. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-27 23:32:32,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:32,511 INFO L93 Difference]: Finished difference Result 3188 states and 4195 transitions. [2024-11-27 23:32:32,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:32:32,512 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) Word has length 353 [2024-11-27 23:32:32,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:32,524 INFO L225 Difference]: With dead ends: 3188 [2024-11-27 23:32:32,525 INFO L226 Difference]: Without dead ends: 1619 [2024-11-27 23:32:32,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 708 GetRequests, 704 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:32,530 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 1 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:32,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1250 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:32:32,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-11-27 23:32:32,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2024-11-27 23:32:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1619 states, 1175 states have (on average 1.2595744680851064) internal successors, (1480), 1193 states have internal predecessors, (1480), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:32,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2126 transitions. [2024-11-27 23:32:32,607 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2126 transitions. Word has length 353 [2024-11-27 23:32:32,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:32,608 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2126 transitions. [2024-11-27 23:32:32,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (47), 2 states have call predecessors, (47), 2 states have call successors, (47) [2024-11-27 23:32:32,608 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2126 transitions. [2024-11-27 23:32:32,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-27 23:32:32,613 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:32,613 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:32,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-27 23:32:32,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:32,814 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:32,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:32,815 INFO L85 PathProgramCache]: Analyzing trace with hash -529602121, now seen corresponding path program 1 times [2024-11-27 23:32:32,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:32,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228756640] [2024-11-27 23:32:32,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:32,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:33,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:34,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:34,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228756640] [2024-11-27 23:32:34,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228756640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:34,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:34,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:34,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040922911] [2024-11-27 23:32:34,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:34,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:34,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:34,017 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:34,017 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:34,017 INFO L87 Difference]: Start difference. First operand 1619 states and 2126 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-27 23:32:35,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:32:35,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:35,122 INFO L93 Difference]: Finished difference Result 3197 states and 4204 transitions. [2024-11-27 23:32:35,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:35,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 353 [2024-11-27 23:32:35,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:35,135 INFO L225 Difference]: With dead ends: 3197 [2024-11-27 23:32:35,136 INFO L226 Difference]: Without dead ends: 1622 [2024-11-27 23:32:35,140 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 [2024-11-27 23:32:35,141 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 0 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1250 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:35,141 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:32:35,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-11-27 23:32:35,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1622. [2024-11-27 23:32:35,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1622 states, 1178 states have (on average 1.2589134125636672) internal successors, (1483), 1196 states have internal predecessors, (1483), 313 states have call successors, (313), 127 states have call predecessors, (313), 130 states have return successors, (333), 316 states have call predecessors, (333), 313 states have call successors, (333) [2024-11-27 23:32:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2129 transitions. [2024-11-27 23:32:35,215 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2129 transitions. Word has length 353 [2024-11-27 23:32:35,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:35,216 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2129 transitions. [2024-11-27 23:32:35,217 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2024-11-27 23:32:35,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2129 transitions. [2024-11-27 23:32:35,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-27 23:32:35,221 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:35,222 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:35,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 23:32:35,222 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:35,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:35,223 INFO L85 PathProgramCache]: Analyzing trace with hash 821074877, now seen corresponding path program 1 times [2024-11-27 23:32:35,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:35,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395168626] [2024-11-27 23:32:35,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:35,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:36,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:37,655 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:37,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395168626] [2024-11-27 23:32:37,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395168626] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:37,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1582112516] [2024-11-27 23:32:37,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:37,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:37,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:37,659 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:37,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-27 23:32:40,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:40,436 INFO L256 TraceCheckSpWp]: Trace formula consists of 3798 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-27 23:32:40,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:46,015 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-27 23:32:46,016 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:48,456 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-27 23:32:48,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1582112516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:48,456 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:48,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 18 [2024-11-27 23:32:48,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140360882] [2024-11-27 23:32:48,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:48,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:32:48,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:48,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:32:48,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:32:48,460 INFO L87 Difference]: Start difference. First operand 1622 states and 2129 transitions. Second operand has 18 states, 18 states have (on average 21.38888888888889) internal successors, (385), 18 states have internal predecessors, (385), 12 states have call successors, (102), 11 states have call predecessors, (102), 8 states have return successors, (97), 12 states have call predecessors, (97), 12 states have call successors, (97) [2024-11-27 23:32:52,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:32:56,562 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:00,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:04,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:08,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:12,663 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:16,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:20,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:24,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:28,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:32,902 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:33:50,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:33:50,199 INFO L93 Difference]: Finished difference Result 2281 states and 3031 transitions. [2024-11-27 23:33:50,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-27 23:33:50,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 21.38888888888889) internal successors, (385), 18 states have internal predecessors, (385), 12 states have call successors, (102), 11 states have call predecessors, (102), 8 states have return successors, (97), 12 states have call predecessors, (97), 12 states have call successors, (97) Word has length 355 [2024-11-27 23:33:50,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:33:50,215 INFO L225 Difference]: With dead ends: 2281 [2024-11-27 23:33:50,216 INFO L226 Difference]: Without dead ends: 2279 [2024-11-27 23:33:50,217 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 732 GetRequests, 703 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=215, Invalid=541, Unknown=0, NotChecked=0, Total=756 [2024-11-27 23:33:50,217 INFO L435 NwaCegarLoop]: 379 mSDtfsCounter, 6512 mSDsluCounter, 2799 mSDsCounter, 0 mSdLazyCounter, 2713 mSolverCounterSat, 3421 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 59.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 3178 SdHoareTripleChecker+Invalid, 6145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3421 IncrementalHoareTripleChecker+Valid, 2713 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.5s IncrementalHoareTripleChecker+Time [2024-11-27 23:33:50,218 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6657 Valid, 3178 Invalid, 6145 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3421 Valid, 2713 Invalid, 11 Unknown, 0 Unchecked, 60.5s Time] [2024-11-27 23:33:50,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-11-27 23:33:50,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2279. [2024-11-27 23:33:50,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2279 states, 1660 states have (on average 1.2596385542168675) internal successors, (2091), 1692 states have internal predecessors, (2091), 438 states have call successors, (438), 168 states have call predecessors, (438), 180 states have return successors, (500), 442 states have call predecessors, (500), 438 states have call successors, (500) [2024-11-27 23:33:50,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3029 transitions. [2024-11-27 23:33:50,369 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3029 transitions. Word has length 355 [2024-11-27 23:33:50,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:33:50,371 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 3029 transitions. [2024-11-27 23:33:50,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 21.38888888888889) internal successors, (385), 18 states have internal predecessors, (385), 12 states have call successors, (102), 11 states have call predecessors, (102), 8 states have return successors, (97), 12 states have call predecessors, (97), 12 states have call successors, (97) [2024-11-27 23:33:50,371 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3029 transitions. [2024-11-27 23:33:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-27 23:33:50,378 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:33:50,378 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:33:50,402 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-27 23:33:50,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:33:50,579 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:33:50,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:33:50,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1555601325, now seen corresponding path program 2 times [2024-11-27 23:33:50,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:33:50,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684857628] [2024-11-27 23:33:50,580 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-27 23:33:50,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:33:51,349 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-27 23:33:51,349 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-27 23:33:57,632 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-11-27 23:33:57,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:33:57,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684857628] [2024-11-27 23:33:57,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684857628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:33:57,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:33:57,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:33:57,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174783528] [2024-11-27 23:33:57,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:33:57,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:33:57,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:33:57,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:33:57,635 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:33:57,635 INFO L87 Difference]: Start difference. First operand 2279 states and 3029 transitions. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-27 23:34:01,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:34:05,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:34:08,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:08,366 INFO L93 Difference]: Finished difference Result 4808 states and 6455 transitions. [2024-11-27 23:34:08,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:08,367 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) Word has length 373 [2024-11-27 23:34:08,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:08,381 INFO L225 Difference]: With dead ends: 4808 [2024-11-27 23:34:08,381 INFO L226 Difference]: Without dead ends: 2573 [2024-11-27 23:34:08,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:34:08,388 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 574 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 2148 SdHoareTripleChecker+Invalid, 485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 474 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:08,388 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 2148 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-27 23:34:08,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2024-11-27 23:34:08,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2516. [2024-11-27 23:34:08,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2516 states, 1843 states have (on average 1.258274552360282) internal successors, (2319), 1880 states have internal predecessors, (2319), 483 states have call successors, (483), 172 states have call predecessors, (483), 189 states have return successors, (581), 487 states have call predecessors, (581), 483 states have call successors, (581) [2024-11-27 23:34:08,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3383 transitions. [2024-11-27 23:34:08,651 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3383 transitions. Word has length 373 [2024-11-27 23:34:08,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:08,652 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 3383 transitions. [2024-11-27 23:34:08,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 5 states have internal predecessors, (153), 3 states have call successors, (36), 3 states have call predecessors, (36), 1 states have return successors, (34), 3 states have call predecessors, (34), 3 states have call successors, (34) [2024-11-27 23:34:08,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3383 transitions. [2024-11-27 23:34:08,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-27 23:34:08,657 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:08,658 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:08,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 23:34:08,658 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:08,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:08,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1385794894, now seen corresponding path program 1 times [2024-11-27 23:34:08,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:08,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996198144] [2024-11-27 23:34:08,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:08,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:09,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:10,901 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-27 23:34:10,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:10,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996198144] [2024-11-27 23:34:10,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996198144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:10,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:10,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:34:10,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430046984] [2024-11-27 23:34:10,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:10,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:34:10,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:10,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:34:10,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:10,904 INFO L87 Difference]: Start difference. First operand 2516 states and 3383 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 23:34:11,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:11,306 INFO L93 Difference]: Finished difference Result 5008 states and 6740 transitions. [2024-11-27 23:34:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:11,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) Word has length 371 [2024-11-27 23:34:11,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:11,322 INFO L225 Difference]: With dead ends: 5008 [2024-11-27 23:34:11,322 INFO L226 Difference]: Without dead ends: 2536 [2024-11-27 23:34:11,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:11,330 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 0 mSDsluCounter, 2480 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3106 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:11,330 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3106 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:34:11,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2024-11-27 23:34:11,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2536. [2024-11-27 23:34:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2536 states, 1859 states have (on average 1.2560516406670252) internal successors, (2335), 1896 states have internal predecessors, (2335), 483 states have call successors, (483), 172 states have call predecessors, (483), 193 states have return successors, (589), 491 states have call predecessors, (589), 483 states have call successors, (589) [2024-11-27 23:34:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3407 transitions. [2024-11-27 23:34:11,514 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3407 transitions. Word has length 371 [2024-11-27 23:34:11,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:11,515 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 3407 transitions. [2024-11-27 23:34:11,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 2 states have call successors, (39), 2 states have call predecessors, (39), 2 states have return successors, (37), 3 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-27 23:34:11,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3407 transitions. [2024-11-27 23:34:11,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-27 23:34:11,520 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:11,520 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:11,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-27 23:34:11,521 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:11,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:11,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1313441603, now seen corresponding path program 1 times [2024-11-27 23:34:11,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:11,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185591547] [2024-11-27 23:34:11,522 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:11,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:13,448 INFO L134 CoverageAnalysis]: Checked inductivity of 566 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 556 trivial. 0 not checked. [2024-11-27 23:34:13,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:13,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185591547] [2024-11-27 23:34:13,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185591547] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:13,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:13,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-27 23:34:13,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955368225] [2024-11-27 23:34:13,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:13,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:13,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:13,451 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:13,452 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:13,452 INFO L87 Difference]: Start difference. First operand 2536 states and 3407 transitions. Second operand has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-27 23:34:13,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:13,707 INFO L93 Difference]: Finished difference Result 5036 states and 6772 transitions. [2024-11-27 23:34:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:13,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 370 [2024-11-27 23:34:13,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:13,734 INFO L225 Difference]: With dead ends: 5036 [2024-11-27 23:34:13,735 INFO L226 Difference]: Without dead ends: 2544 [2024-11-27 23:34:13,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:34:13,745 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2500 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:13,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2500 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:34:13,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-27 23:34:13,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2024-11-27 23:34:13,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 1867 states have (on average 1.25495447241564) internal successors, (2343), 1900 states have internal predecessors, (2343), 483 states have call successors, (483), 172 states have call predecessors, (483), 193 states have return successors, (589), 495 states have call predecessors, (589), 483 states have call successors, (589) [2024-11-27 23:34:13,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3415 transitions. [2024-11-27 23:34:13,969 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3415 transitions. Word has length 370 [2024-11-27 23:34:13,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:13,970 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 3415 transitions. [2024-11-27 23:34:13,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.2) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (35), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-27 23:34:13,970 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3415 transitions. [2024-11-27 23:34:13,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-27 23:34:13,976 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:13,977 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:13,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 23:34:13,977 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:13,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:13,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1514288946, now seen corresponding path program 1 times [2024-11-27 23:34:13,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:13,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459981015] [2024-11-27 23:34:13,978 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:13,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:18,163 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-11-27 23:34:18,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:18,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459981015] [2024-11-27 23:34:18,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459981015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:18,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:18,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:34:18,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6278006] [2024-11-27 23:34:18,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:18,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:34:18,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:18,165 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:34:18,165 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:18,166 INFO L87 Difference]: Start difference. First operand 2544 states and 3415 transitions. Second operand has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-11-27 23:34:22,212 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:34:26,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:34:28,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:28,778 INFO L93 Difference]: Finished difference Result 5109 states and 6881 transitions. [2024-11-27 23:34:28,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:28,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 400 [2024-11-27 23:34:28,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:28,804 INFO L225 Difference]: With dead ends: 5109 [2024-11-27 23:34:28,804 INFO L226 Difference]: Without dead ends: 2609 [2024-11-27 23:34:28,814 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:34:28,815 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 626 mSDsluCounter, 1445 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:28,815 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 2063 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 450 Invalid, 2 Unknown, 0 Unchecked, 10.2s Time] [2024-11-27 23:34:28,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2609 states. [2024-11-27 23:34:29,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2609 to 2552. [2024-11-27 23:34:29,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 1875 states have (on average 1.2538666666666667) internal successors, (2351), 1908 states have internal predecessors, (2351), 483 states have call successors, (483), 172 states have call predecessors, (483), 193 states have return successors, (589), 495 states have call predecessors, (589), 483 states have call successors, (589) [2024-11-27 23:34:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3423 transitions. [2024-11-27 23:34:29,162 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3423 transitions. Word has length 400 [2024-11-27 23:34:29,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:29,163 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3423 transitions. [2024-11-27 23:34:29,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.5) internal successors, (159), 5 states have internal predecessors, (159), 3 states have call successors, (42), 3 states have call predecessors, (42), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-11-27 23:34:29,163 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3423 transitions. [2024-11-27 23:34:29,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-27 23:34:29,171 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:29,171 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:29,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 23:34:29,172 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:29,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1491373457, now seen corresponding path program 1 times [2024-11-27 23:34:29,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:29,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493757484] [2024-11-27 23:34:29,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:29,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:30,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-27 23:34:31,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:31,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493757484] [2024-11-27 23:34:31,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493757484] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:31,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957172912] [2024-11-27 23:34:31,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:31,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:31,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:31,894 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:32,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-27 23:34:35,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:35,404 INFO L256 TraceCheckSpWp]: Trace formula consists of 4021 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:34:35,413 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:35,924 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 658 trivial. 0 not checked. [2024-11-27 23:34:35,924 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:35,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957172912] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:35,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:35,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-27 23:34:35,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770483181] [2024-11-27 23:34:35,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:35,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:34:35,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:35,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:34:35,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:34:35,926 INFO L87 Difference]: Start difference. First operand 2552 states and 3423 transitions. Second operand has 8 states, 8 states have (on average 21.625) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-27 23:34:36,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:36,382 INFO L93 Difference]: Finished difference Result 5076 states and 6816 transitions. [2024-11-27 23:34:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:34:36,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) Word has length 401 [2024-11-27 23:34:36,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:36,405 INFO L225 Difference]: With dead ends: 5076 [2024-11-27 23:34:36,405 INFO L226 Difference]: Without dead ends: 2568 [2024-11-27 23:34:36,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 396 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:34:36,415 INFO L435 NwaCegarLoop]: 621 mSDtfsCounter, 0 mSDsluCounter, 3711 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4332 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:36,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4332 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:34:36,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2024-11-27 23:34:36,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2560. [2024-11-27 23:34:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1879 states have (on average 1.253326237360298) internal successors, (2355), 1916 states have internal predecessors, (2355), 483 states have call successors, (483), 172 states have call predecessors, (483), 197 states have return successors, (597), 495 states have call predecessors, (597), 483 states have call successors, (597) [2024-11-27 23:34:36,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3435 transitions. [2024-11-27 23:34:36,655 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3435 transitions. Word has length 401 [2024-11-27 23:34:36,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:36,656 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 3435 transitions. [2024-11-27 23:34:36,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.625) internal successors, (173), 6 states have internal predecessors, (173), 2 states have call successors, (42), 2 states have call predecessors, (42), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-27 23:34:36,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3435 transitions. [2024-11-27 23:34:36,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-27 23:34:36,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:36,665 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:36,694 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-27 23:34:36,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:36,866 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:36,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:36,867 INFO L85 PathProgramCache]: Analyzing trace with hash 207462290, now seen corresponding path program 1 times [2024-11-27 23:34:36,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:36,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491410340] [2024-11-27 23:34:36,867 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:36,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:38,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-27 23:34:39,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:39,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491410340] [2024-11-27 23:34:39,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491410340] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:39,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826353871] [2024-11-27 23:34:39,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:39,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:39,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:39,200 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:39,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-27 23:34:42,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:42,730 INFO L256 TraceCheckSpWp]: Trace formula consists of 4034 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-27 23:34:42,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:34:42,888 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-11-27 23:34:42,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:34:42,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826353871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:42,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:34:42,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-27 23:34:42,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363709861] [2024-11-27 23:34:42,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:42,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-27 23:34:42,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:42,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-27 23:34:42,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:34:42,891 INFO L87 Difference]: Start difference. First operand 2560 states and 3435 transitions. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-27 23:34:46,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:34:47,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:47,246 INFO L93 Difference]: Finished difference Result 5096 states and 6844 transitions. [2024-11-27 23:34:47,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:34:47,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) Word has length 401 [2024-11-27 23:34:47,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:47,262 INFO L225 Difference]: With dead ends: 5096 [2024-11-27 23:34:47,263 INFO L226 Difference]: Without dead ends: 2508 [2024-11-27 23:34:47,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:34:47,271 INFO L435 NwaCegarLoop]: 625 mSDtfsCounter, 1 mSDsluCounter, 1862 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:47,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2487 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-27 23:34:47,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2508 states. [2024-11-27 23:34:47,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2508 to 2484. [2024-11-27 23:34:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1819 states have (on average 1.2484881803188566) internal successors, (2271), 1856 states have internal predecessors, (2271), 475 states have call successors, (475), 164 states have call predecessors, (475), 189 states have return successors, (589), 487 states have call predecessors, (589), 475 states have call successors, (589) [2024-11-27 23:34:47,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3335 transitions. [2024-11-27 23:34:47,601 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3335 transitions. Word has length 401 [2024-11-27 23:34:47,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:47,602 INFO L471 AbstractCegarLoop]: Abstraction has 2484 states and 3335 transitions. [2024-11-27 23:34:47,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (40), 2 states have call predecessors, (40), 2 states have call successors, (40) [2024-11-27 23:34:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3335 transitions. [2024-11-27 23:34:47,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2024-11-27 23:34:47,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:47,608 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:47,641 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-27 23:34:47,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:47,810 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:47,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:47,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1061137215, now seen corresponding path program 1 times [2024-11-27 23:34:47,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:47,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95506619] [2024-11-27 23:34:47,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:47,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:50,480 INFO L134 CoverageAnalysis]: Checked inductivity of 577 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2024-11-27 23:34:50,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:50,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95506619] [2024-11-27 23:34:50,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95506619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:34:50,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:34:50,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:34:50,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308986512] [2024-11-27 23:34:50,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:34:50,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:34:50,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:34:50,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:34:50,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:50,483 INFO L87 Difference]: Start difference. First operand 2484 states and 3335 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 23:34:51,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:34:51,017 INFO L93 Difference]: Finished difference Result 4932 states and 6628 transitions. [2024-11-27 23:34:51,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:34:51,018 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 398 [2024-11-27 23:34:51,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:34:51,036 INFO L225 Difference]: With dead ends: 4932 [2024-11-27 23:34:51,036 INFO L226 Difference]: Without dead ends: 2492 [2024-11-27 23:34:51,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:34:51,049 INFO L435 NwaCegarLoop]: 617 mSDtfsCounter, 0 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3061 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:34:51,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3061 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:34:51,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2492 states. [2024-11-27 23:34:51,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2492 to 2492. [2024-11-27 23:34:51,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 1827 states have (on average 1.247400109469075) internal successors, (2279), 1860 states have internal predecessors, (2279), 475 states have call successors, (475), 164 states have call predecessors, (475), 189 states have return successors, (589), 491 states have call predecessors, (589), 475 states have call successors, (589) [2024-11-27 23:34:51,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 3343 transitions. [2024-11-27 23:34:51,292 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 3343 transitions. Word has length 398 [2024-11-27 23:34:51,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:34:51,293 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 3343 transitions. [2024-11-27 23:34:51,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2024-11-27 23:34:51,293 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 3343 transitions. [2024-11-27 23:34:51,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-27 23:34:51,299 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:34:51,299 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:34:51,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-27 23:34:51,300 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:34:51,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:34:51,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1133065941, now seen corresponding path program 1 times [2024-11-27 23:34:51,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:34:51,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636370937] [2024-11-27 23:34:51,301 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:51,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:34:52,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:34:57,310 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-27 23:34:57,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:34:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636370937] [2024-11-27 23:34:57,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636370937] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:34:57,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [436368447] [2024-11-27 23:34:57,311 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:34:57,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:34:57,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:34:57,313 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:34:57,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-27 23:35:01,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:01,536 INFO L256 TraceCheckSpWp]: Trace formula consists of 4313 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-27 23:35:01,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2024-11-27 23:35:02,240 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:35:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [436368447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:35:02,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:35:02,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-27 23:35:02,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539857137] [2024-11-27 23:35:02,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:35:02,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-27 23:35:02,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:35:02,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-27 23:35:02,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:35:02,244 INFO L87 Difference]: Start difference. First operand 2492 states and 3343 transitions. Second operand has 8 states, 8 states have (on average 23.0) internal successors, (184), 6 states have internal predecessors, (184), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-27 23:35:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:35:02,815 INFO L93 Difference]: Finished difference Result 4948 states and 6644 transitions. [2024-11-27 23:35:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:35:02,816 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 6 states have internal predecessors, (184), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) Word has length 424 [2024-11-27 23:35:02,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:35:02,831 INFO L225 Difference]: With dead ends: 4948 [2024-11-27 23:35:02,831 INFO L226 Difference]: Without dead ends: 2500 [2024-11-27 23:35:02,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-27 23:35:02,839 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 0 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4269 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-27 23:35:02,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4269 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-27 23:35:02,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2024-11-27 23:35:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 2484. [2024-11-27 23:35:03,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1823 states have (on average 1.2479429511793747) internal successors, (2275), 1852 states have internal predecessors, (2275), 475 states have call successors, (475), 164 states have call predecessors, (475), 185 states have return successors, (581), 491 states have call predecessors, (581), 475 states have call successors, (581) [2024-11-27 23:35:03,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3331 transitions. [2024-11-27 23:35:03,090 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3331 transitions. Word has length 424 [2024-11-27 23:35:03,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:35:03,091 INFO L471 AbstractCegarLoop]: Abstraction has 2484 states and 3331 transitions. [2024-11-27 23:35:03,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 23.0) internal successors, (184), 6 states have internal predecessors, (184), 2 states have call successors, (45), 2 states have call predecessors, (45), 4 states have return successors, (43), 4 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-27 23:35:03,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3331 transitions. [2024-11-27 23:35:03,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-27 23:35:03,097 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:35:03,097 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:35:03,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-27 23:35:03,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-27 23:35:03,299 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:35:03,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:35:03,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1368744116, now seen corresponding path program 1 times [2024-11-27 23:35:03,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:35:03,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926859771] [2024-11-27 23:35:03,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:03,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:35:04,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-27 23:35:17,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:35:17,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926859771] [2024-11-27 23:35:17,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926859771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:35:17,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802143308] [2024-11-27 23:35:17,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:35:17,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:35:17,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:35:17,273 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:35:17,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-27 23:35:21,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:35:21,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 4326 conjuncts, 69 conjuncts are in the unsatisfiable core [2024-11-27 23:35:21,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:35:23,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,651 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:35:23,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,656 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:35:23,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,664 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:35:23,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:23,923 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 28 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 332 treesize of output 109 [2024-11-27 23:35:24,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:24,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:24,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:24,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:24,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:24,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:35:24,363 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 636 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 320 treesize of output 127 [2024-11-27 23:37:28,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 66 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 37 [2024-11-27 23:37:28,172 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-27 23:37:28,172 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 125 treesize of output 43 [2024-11-27 23:37:28,216 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2024-11-27 23:37:28,216 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:37:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-27 23:37:31,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802143308] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:37:31,575 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:37:31,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-27 23:37:31,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572176667] [2024-11-27 23:37:31,576 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:37:31,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-27 23:37:31,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:37:31,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-27 23:37:31,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=224, Unknown=1, NotChecked=0, Total=272 [2024-11-27 23:37:31,579 INFO L87 Difference]: Start difference. First operand 2484 states and 3331 transitions. Second operand has 17 states, 17 states have (on average 24.88235294117647) internal successors, (423), 14 states have internal predecessors, (423), 9 states have call successors, (116), 7 states have call predecessors, (116), 4 states have return successors, (112), 9 states have call predecessors, (112), 9 states have call successors, (112) [2024-11-27 23:37:35,603 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:37:39,624 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:37:43,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:37:47,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:37:51,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:37:55,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:37:59,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:38:03,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:38:07,887 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:38:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:23,722 INFO L93 Difference]: Finished difference Result 5072 states and 6834 transitions. [2024-11-27 23:38:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:38:23,723 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 24.88235294117647) internal successors, (423), 14 states have internal predecessors, (423), 9 states have call successors, (116), 7 states have call predecessors, (116), 4 states have return successors, (112), 9 states have call predecessors, (112), 9 states have call successors, (112) Word has length 424 [2024-11-27 23:38:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:23,742 INFO L225 Difference]: With dead ends: 5072 [2024-11-27 23:38:23,742 INFO L226 Difference]: Without dead ends: 2632 [2024-11-27 23:38:23,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 837 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=98, Invalid=321, Unknown=1, NotChecked=0, Total=420 [2024-11-27 23:38:23,751 INFO L435 NwaCegarLoop]: 650 mSDtfsCounter, 729 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 1407 mSolverCounterSat, 148 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 43.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 4447 SdHoareTripleChecker+Invalid, 1564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 1407 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:23,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 4447 Invalid, 1564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 1407 Invalid, 9 Unknown, 0 Unchecked, 44.7s Time] [2024-11-27 23:38:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2632 states. [2024-11-27 23:38:24,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2632 to 2538. [2024-11-27 23:38:24,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2538 states, 1869 states have (on average 1.2461209202782237) internal successors, (2329), 1897 states have internal predecessors, (2329), 482 states have call successors, (482), 164 states have call predecessors, (482), 186 states have return successors, (597), 500 states have call predecessors, (597), 482 states have call successors, (597) [2024-11-27 23:38:24,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2538 states to 2538 states and 3408 transitions. [2024-11-27 23:38:24,648 INFO L78 Accepts]: Start accepts. Automaton has 2538 states and 3408 transitions. Word has length 424 [2024-11-27 23:38:24,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:24,649 INFO L471 AbstractCegarLoop]: Abstraction has 2538 states and 3408 transitions. [2024-11-27 23:38:24,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 24.88235294117647) internal successors, (423), 14 states have internal predecessors, (423), 9 states have call successors, (116), 7 states have call predecessors, (116), 4 states have return successors, (112), 9 states have call predecessors, (112), 9 states have call successors, (112) [2024-11-27 23:38:24,649 INFO L276 IsEmpty]: Start isEmpty. Operand 2538 states and 3408 transitions. [2024-11-27 23:38:24,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-27 23:38:24,654 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:24,654 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:24,692 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-27 23:38:24,855 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:24,855 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:38:24,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:24,856 INFO L85 PathProgramCache]: Analyzing trace with hash -31629674, now seen corresponding path program 1 times [2024-11-27 23:38:24,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:24,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235695327] [2024-11-27 23:38:24,857 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:24,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:27,328 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-11-27 23:38:27,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:27,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235695327] [2024-11-27 23:38:27,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235695327] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:27,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457511247] [2024-11-27 23:38:27,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:27,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:27,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:27,332 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:27,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-27 23:38:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:32,075 INFO L256 TraceCheckSpWp]: Trace formula consists of 3990 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-27 23:38:32,085 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:32,619 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-27 23:38:32,619 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:32,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457511247] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:32,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:32,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-11-27 23:38:32,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880614551] [2024-11-27 23:38:32,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:32,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:38:32,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:32,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:38:32,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:38:32,623 INFO L87 Difference]: Start difference. First operand 2538 states and 3408 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-27 23:38:33,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:33,480 INFO L93 Difference]: Finished difference Result 5068 states and 6814 transitions. [2024-11-27 23:38:33,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:38:33,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) Word has length 401 [2024-11-27 23:38:33,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:33,497 INFO L225 Difference]: With dead ends: 5068 [2024-11-27 23:38:33,497 INFO L226 Difference]: Without dead ends: 2574 [2024-11-27 23:38:33,504 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:38:33,505 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 3083 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3701 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 [2024-11-27 23:38:33,506 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3701 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:38:33,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2574 states. [2024-11-27 23:38:34,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2574 to 2566. [2024-11-27 23:38:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2566 states, 1889 states have (on average 1.2435150873478031) internal successors, (2349), 1917 states have internal predecessors, (2349), 482 states have call successors, (482), 164 states have call predecessors, (482), 194 states have return successors, (617), 508 states have call predecessors, (617), 482 states have call successors, (617) [2024-11-27 23:38:34,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2566 states to 2566 states and 3448 transitions. [2024-11-27 23:38:34,279 INFO L78 Accepts]: Start accepts. Automaton has 2566 states and 3448 transitions. Word has length 401 [2024-11-27 23:38:34,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:34,280 INFO L471 AbstractCegarLoop]: Abstraction has 2566 states and 3448 transitions. [2024-11-27 23:38:34,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (41), 4 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-27 23:38:34,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2566 states and 3448 transitions. [2024-11-27 23:38:34,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-27 23:38:34,285 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:34,285 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:34,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-27 23:38:34,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:34,487 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:38:34,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:34,488 INFO L85 PathProgramCache]: Analyzing trace with hash -681758309, now seen corresponding path program 1 times [2024-11-27 23:38:34,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:34,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070193321] [2024-11-27 23:38:34,488 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:34,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:35,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:37,131 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-11-27 23:38:37,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:37,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070193321] [2024-11-27 23:38:37,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070193321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:37,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37978562] [2024-11-27 23:38:37,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:37,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:37,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:37,135 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:37,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-27 23:38:45,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:45,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 23:38:45,626 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:38:45,792 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2024-11-27 23:38:45,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:38:45,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37978562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:38:45,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:38:45,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-27 23:38:45,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497583045] [2024-11-27 23:38:45,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:38:45,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 23:38:45,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:38:45,793 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 23:38:45,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:38:45,794 INFO L87 Difference]: Start difference. First operand 2566 states and 3448 transitions. Second operand has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-27 23:38:46,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:38:46,539 INFO L93 Difference]: Finished difference Result 5100 states and 6857 transitions. [2024-11-27 23:38:46,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 23:38:46,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) Word has length 422 [2024-11-27 23:38:46,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:38:46,558 INFO L225 Difference]: With dead ends: 5100 [2024-11-27 23:38:46,558 INFO L226 Difference]: Without dead ends: 2567 [2024-11-27 23:38:46,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 425 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:38:46,568 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1848 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-27 23:38:46,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1848 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-27 23:38:46,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2024-11-27 23:38:47,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2567. [2024-11-27 23:38:47,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2567 states, 1890 states have (on average 1.2433862433862435) internal successors, (2350), 1918 states have internal predecessors, (2350), 482 states have call successors, (482), 164 states have call predecessors, (482), 194 states have return successors, (617), 508 states have call predecessors, (617), 482 states have call successors, (617) [2024-11-27 23:38:47,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2567 states to 2567 states and 3449 transitions. [2024-11-27 23:38:47,597 INFO L78 Accepts]: Start accepts. Automaton has 2567 states and 3449 transitions. Word has length 422 [2024-11-27 23:38:47,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:38:47,598 INFO L471 AbstractCegarLoop]: Abstraction has 2567 states and 3449 transitions. [2024-11-27 23:38:47,598 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.5) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (45), 2 states have call predecessors, (45), 3 states have return successors, (43), 2 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-27 23:38:47,599 INFO L276 IsEmpty]: Start isEmpty. Operand 2567 states and 3449 transitions. [2024-11-27 23:38:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-27 23:38:47,603 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:38:47,604 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:38:47,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-27 23:38:47,804 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-27 23:38:47,805 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:38:47,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:38:47,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1982487327, now seen corresponding path program 1 times [2024-11-27 23:38:47,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:38:47,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303558871] [2024-11-27 23:38:47,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:47,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:38:49,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:38:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-27 23:38:50,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:38:50,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303558871] [2024-11-27 23:38:50,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303558871] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:38:50,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1837404498] [2024-11-27 23:38:50,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:38:50,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:38:50,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:38:50,572 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:38:50,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-27 23:39:01,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:01,512 INFO L256 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-27 23:39:01,522 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:39:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 179 proven. 1 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-11-27 23:39:01,835 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:39:04,040 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-27 23:39:04,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1837404498] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:39:04,040 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:39:04,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-27 23:39:04,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049262114] [2024-11-27 23:39:04,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:39:04,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:39:04,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:39:04,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:39:04,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-27 23:39:04,042 INFO L87 Difference]: Start difference. First operand 2567 states and 3449 transitions. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-27 23:39:05,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:39:05,005 INFO L93 Difference]: Finished difference Result 5107 states and 6867 transitions. [2024-11-27 23:39:05,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:39:05,006 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) Word has length 424 [2024-11-27 23:39:05,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:39:05,023 INFO L225 Difference]: With dead ends: 5107 [2024-11-27 23:39:05,023 INFO L226 Difference]: Without dead ends: 2570 [2024-11-27 23:39:05,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-27 23:39:05,033 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 3075 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3693 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-27 23:39:05,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3693 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-27 23:39:05,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2570 states. [2024-11-27 23:39:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2570 to 2570. [2024-11-27 23:39:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2570 states, 1893 states have (on average 1.243000528262018) internal successors, (2353), 1921 states have internal predecessors, (2353), 482 states have call successors, (482), 164 states have call predecessors, (482), 194 states have return successors, (617), 508 states have call predecessors, (617), 482 states have call successors, (617) [2024-11-27 23:39:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 3452 transitions. [2024-11-27 23:39:06,229 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 3452 transitions. Word has length 424 [2024-11-27 23:39:06,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:39:06,229 INFO L471 AbstractCegarLoop]: Abstraction has 2570 states and 3452 transitions. [2024-11-27 23:39:06,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 10 states have internal predecessors, (261), 2 states have call successors, (77), 2 states have call predecessors, (77), 4 states have return successors, (76), 2 states have call predecessors, (76), 2 states have call successors, (76) [2024-11-27 23:39:06,230 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 3452 transitions. [2024-11-27 23:39:06,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-27 23:39:06,234 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:39:06,235 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:39:06,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-27 23:39:06,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-27 23:39:06,438 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:39:06,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:39:06,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1053544632, now seen corresponding path program 1 times [2024-11-27 23:39:06,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:39:06,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690065393] [2024-11-27 23:39:06,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:06,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:39:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:39:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-27 23:39:15,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:39:15,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690065393] [2024-11-27 23:39:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690065393] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:39:15,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124294571] [2024-11-27 23:39:15,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:39:15,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:39:15,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:39:15,481 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:39:15,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-27 23:41:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:41:09,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 4228 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-11-27 23:41:09,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:41:09,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:41:09,217 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 23:41:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:41:09,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 23:41:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2024-11-27 23:41:23,097 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:41:27,045 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 817 trivial. 0 not checked. [2024-11-27 23:41:27,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124294571] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:41:27,046 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:41:27,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-27 23:41:27,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860838979] [2024-11-27 23:41:27,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:41:27,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-27 23:41:27,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:41:27,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-27 23:41:27,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2024-11-27 23:41:27,050 INFO L87 Difference]: Start difference. First operand 2570 states and 3452 transitions. Second operand has 18 states, 18 states have (on average 22.38888888888889) internal successors, (403), 15 states have internal predecessors, (403), 10 states have call successors, (115), 7 states have call predecessors, (115), 4 states have return successors, (112), 10 states have call predecessors, (112), 10 states have call successors, (112) [2024-11-27 23:41:31,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:35,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:39,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:43,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:47,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:51,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:55,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:41:59,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:42:03,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:42:12,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:42:12,162 INFO L93 Difference]: Finished difference Result 5240 states and 7072 transitions. [2024-11-27 23:42:12,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:42:12,163 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 22.38888888888889) internal successors, (403), 15 states have internal predecessors, (403), 10 states have call successors, (115), 7 states have call predecessors, (115), 4 states have return successors, (112), 10 states have call predecessors, (112), 10 states have call successors, (112) Word has length 431 [2024-11-27 23:42:12,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:42:12,188 INFO L225 Difference]: With dead ends: 5240 [2024-11-27 23:42:12,188 INFO L226 Difference]: Without dead ends: 2718 [2024-11-27 23:42:12,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 874 GetRequests, 853 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2024-11-27 23:42:12,199 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 821 mSDsluCounter, 3655 mSDsCounter, 0 mSdLazyCounter, 1363 mSolverCounterSat, 383 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 42.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 4268 SdHoareTripleChecker+Invalid, 1755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 383 IncrementalHoareTripleChecker+Valid, 1363 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 43.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:42:12,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 4268 Invalid, 1755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [383 Valid, 1363 Invalid, 9 Unknown, 0 Unchecked, 43.6s Time] [2024-11-27 23:42:12,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2024-11-27 23:42:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 2624. [2024-11-27 23:42:13,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2624 states, 1939 states have (on average 1.2413615265600826) internal successors, (2407), 1966 states have internal predecessors, (2407), 489 states have call successors, (489), 164 states have call predecessors, (489), 195 states have return successors, (633), 517 states have call predecessors, (633), 489 states have call successors, (633) [2024-11-27 23:42:13,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2624 states to 2624 states and 3529 transitions. [2024-11-27 23:42:13,124 INFO L78 Accepts]: Start accepts. Automaton has 2624 states and 3529 transitions. Word has length 431 [2024-11-27 23:42:13,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:42:13,125 INFO L471 AbstractCegarLoop]: Abstraction has 2624 states and 3529 transitions. [2024-11-27 23:42:13,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 22.38888888888889) internal successors, (403), 15 states have internal predecessors, (403), 10 states have call successors, (115), 7 states have call predecessors, (115), 4 states have return successors, (112), 10 states have call predecessors, (112), 10 states have call successors, (112) [2024-11-27 23:42:13,126 INFO L276 IsEmpty]: Start isEmpty. Operand 2624 states and 3529 transitions. [2024-11-27 23:42:13,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-27 23:42:13,131 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:42:13,132 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:42:13,302 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-27 23:42:13,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-27 23:42:13,332 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:42:13,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:42:13,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1360894363, now seen corresponding path program 1 times [2024-11-27 23:42:13,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:42:13,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131924939] [2024-11-27 23:42:13,333 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:42:13,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:42:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:42:16,630 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 824 trivial. 0 not checked. [2024-11-27 23:42:16,630 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:42:16,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131924939] [2024-11-27 23:42:16,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131924939] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:42:16,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:42:16,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:42:16,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947118636] [2024-11-27 23:42:16,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:42:16,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-27 23:42:16,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:42:16,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-27 23:42:16,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:42:16,633 INFO L87 Difference]: Start difference. First operand 2624 states and 3529 transitions. Second operand has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 4 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2024-11-27 23:42:20,668 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:42:24,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:42:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:42:28,362 INFO L93 Difference]: Finished difference Result 5299 states and 7161 transitions. [2024-11-27 23:42:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-27 23:42:28,363 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 4 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) Word has length 430 [2024-11-27 23:42:28,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:42:28,382 INFO L225 Difference]: With dead ends: 5299 [2024-11-27 23:42:28,383 INFO L226 Difference]: Without dead ends: 2723 [2024-11-27 23:42:28,392 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-27 23:42:28,393 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 617 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 619 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 464 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:42:28,394 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2031 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 446 Invalid, 2 Unknown, 0 Unchecked, 10.6s Time] [2024-11-27 23:42:28,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2723 states. [2024-11-27 23:42:29,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2723 to 2642. [2024-11-27 23:42:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2642 states, 1957 states have (on average 1.2391415431783341) internal successors, (2425), 1984 states have internal predecessors, (2425), 489 states have call successors, (489), 164 states have call predecessors, (489), 195 states have return successors, (633), 517 states have call predecessors, (633), 489 states have call successors, (633) [2024-11-27 23:42:29,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2642 states to 2642 states and 3547 transitions. [2024-11-27 23:42:29,459 INFO L78 Accepts]: Start accepts. Automaton has 2642 states and 3547 transitions. Word has length 430 [2024-11-27 23:42:29,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:42:29,460 INFO L471 AbstractCegarLoop]: Abstraction has 2642 states and 3547 transitions. [2024-11-27 23:42:29,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.333333333333332) internal successors, (164), 5 states have internal predecessors, (164), 4 states have call successors, (45), 3 states have call predecessors, (45), 1 states have return successors, (43), 4 states have call predecessors, (43), 4 states have call successors, (43) [2024-11-27 23:42:29,460 INFO L276 IsEmpty]: Start isEmpty. Operand 2642 states and 3547 transitions. [2024-11-27 23:42:29,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-27 23:42:29,464 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:42:29,464 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 13, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:42:29,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-27 23:42:29,464 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:42:29,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:42:29,465 INFO L85 PathProgramCache]: Analyzing trace with hash -1820542755, now seen corresponding path program 1 times [2024-11-27 23:42:29,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:42:29,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463060750] [2024-11-27 23:42:29,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:42:29,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:42:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:42:38,125 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-27 23:42:38,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:42:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463060750] [2024-11-27 23:42:38,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463060750] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:42:38,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765913508] [2024-11-27 23:42:38,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:42:38,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:42:38,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:42:38,129 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:42:38,130 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-27 23:42:44,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:42:44,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 4206 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-27 23:42:44,178 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:42:44,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:42:44,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 23:42:44,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:42:44,232 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-27 23:43:01,368 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2024-11-27 23:43:01,368 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:43:05,812 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-27 23:43:05,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765913508] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:43:05,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:43:05,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2024-11-27 23:43:05,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159609318] [2024-11-27 23:43:05,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:43:05,813 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-27 23:43:05,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:43:05,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-27 23:43:05,815 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-27 23:43:05,815 INFO L87 Difference]: Start difference. First operand 2642 states and 3547 transitions. Second operand has 21 states, 21 states have (on average 19.666666666666668) internal successors, (413), 18 states have internal predecessors, (413), 13 states have call successors, (117), 7 states have call predecessors, (117), 4 states have return successors, (113), 13 states have call predecessors, (113), 13 states have call successors, (113) [2024-11-27 23:43:09,838 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:13,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:17,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:21,885 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:25,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:29,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:33,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:37,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:42,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:46,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:50,147 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:43:54,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-27 23:44:04,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:44:04,414 INFO L93 Difference]: Finished difference Result 5285 states and 7106 transitions. [2024-11-27 23:44:04,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-27 23:44:04,415 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 19.666666666666668) internal successors, (413), 18 states have internal predecessors, (413), 13 states have call successors, (117), 7 states have call predecessors, (117), 4 states have return successors, (113), 13 states have call predecessors, (113), 13 states have call successors, (113) Word has length 429 [2024-11-27 23:44:04,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:44:04,436 INFO L225 Difference]: With dead ends: 5285 [2024-11-27 23:44:04,436 INFO L226 Difference]: Without dead ends: 2691 [2024-11-27 23:44:04,444 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2024-11-27 23:44:04,445 INFO L435 NwaCegarLoop]: 613 mSDtfsCounter, 806 mSDsluCounter, 3644 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 377 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 1821 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:44:04,445 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 4257 Invalid, 1821 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1432 Invalid, 12 Unknown, 0 Unchecked, 56.7s Time] [2024-11-27 23:44:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2024-11-27 23:44:05,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2631. [2024-11-27 23:44:05,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2631 states, 1950 states have (on average 1.2348717948717949) internal successors, (2408), 1974 states have internal predecessors, (2408), 485 states have call successors, (485), 164 states have call predecessors, (485), 195 states have return successors, (625), 516 states have call predecessors, (625), 485 states have call successors, (625) [2024-11-27 23:44:05,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2631 states to 2631 states and 3518 transitions. [2024-11-27 23:44:05,335 INFO L78 Accepts]: Start accepts. Automaton has 2631 states and 3518 transitions. Word has length 429 [2024-11-27 23:44:05,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:44:05,335 INFO L471 AbstractCegarLoop]: Abstraction has 2631 states and 3518 transitions. [2024-11-27 23:44:05,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 19.666666666666668) internal successors, (413), 18 states have internal predecessors, (413), 13 states have call successors, (117), 7 states have call predecessors, (117), 4 states have return successors, (113), 13 states have call predecessors, (113), 13 states have call successors, (113) [2024-11-27 23:44:05,336 INFO L276 IsEmpty]: Start isEmpty. Operand 2631 states and 3518 transitions. [2024-11-27 23:44:05,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 434 [2024-11-27 23:44:05,338 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:44:05,339 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:44:05,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-27 23:44:05,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-27 23:44:05,539 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:44:05,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:44:05,540 INFO L85 PathProgramCache]: Analyzing trace with hash -847136817, now seen corresponding path program 1 times [2024-11-27 23:44:05,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:44:05,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244996771] [2024-11-27 23:44:05,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:44:05,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:44:07,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:44:19,954 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2024-11-27 23:44:19,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:44:19,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244996771] [2024-11-27 23:44:19,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244996771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:44:19,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269177292] [2024-11-27 23:44:19,955 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:44:19,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:44:19,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:44:19,958 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:44:19,959 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4154ebc6-7219-48c2-b25f-bdf34850ea19/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-27 23:44:26,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:44:26,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 4487 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-27 23:44:26,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:44:27,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,382 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,417 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 534 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 199 treesize of output 71 [2024-11-27 23:44:27,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,903 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:44:27,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,920 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-27 23:44:27,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-27 23:44:27,959 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 564 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 175 treesize of output 113