./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 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/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_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC --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-6497de0 [2024-11-24 01:21:01,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:21:01,127 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:21:01,134 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:21:01,134 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:21:01,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:21:01,162 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:21:01,163 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:21:01,163 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:21:01,163 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:21:01,163 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:21:01,164 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:21:01,164 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:21:01,164 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:21:01,164 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:21:01,165 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:21:01,165 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:21:01,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:21:01,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:21:01,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:21:01,165 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:21:01,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:21:01,166 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:21:01,166 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:21:01,168 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:21:01,168 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:01,169 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:21:01,169 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:01,170 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:21:01,170 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:21:01,171 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:21:01,171 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:21:01,171 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:21:01,171 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_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC 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 [2024-11-24 01:21:01,531 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:21:01,540 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:21:01,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:21:01,543 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:21:01,544 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:21:01,545 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-24 01:21:04,851 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/data/4fd22c463/b383bc4ded77433dbdcfe79df35ee8a0/FLAG115b289c6 [2024-11-24 01:21:05,425 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:21:05,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-24 01:21:05,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/data/4fd22c463/b383bc4ded77433dbdcfe79df35ee8a0/FLAG115b289c6 [2024-11-24 01:21:05,504 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/data/4fd22c463/b383bc4ded77433dbdcfe79df35ee8a0 [2024-11-24 01:21:05,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:21:05,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:21:05,513 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:21:05,514 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:21:05,524 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:21:05,525 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:05" (1/1) ... [2024-11-24 01:21:05,528 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@620dc9c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:05, skipping insertion in model container [2024-11-24 01:21:05,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:21:05" (1/1) ... [2024-11-24 01:21:05,655 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:21:06,760 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_a1308486-3459-4577-9d45-4ea3d0ef9cf3/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] [2024-11-24 01:21:06,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:21:06,847 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:21:06,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapl %0": "=r" (val): "0" (val)); [2762] [2024-11-24 01:21:07,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("bswapq %0": "=r" (val): "0" (val)); [2769] [2024-11-24 01:21:07,254 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_a1308486-3459-4577-9d45-4ea3d0ef9cf3/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] [2024-11-24 01:21:07,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:21:07,345 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:21:07,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07 WrapperNode [2024-11-24 01:21:07,347 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:21:07,348 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:21:07,348 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:21:07,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:21:07,360 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,429 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,553 INFO L138 Inliner]: procedures = 150, calls = 795, calls flagged for inlining = 63, calls inlined = 45, statements flattened = 1727 [2024-11-24 01:21:07,553 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:21:07,554 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:21:07,554 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:21:07,554 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:21:07,571 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,571 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,591 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,847 INFO L175 MemorySlicer]: Split 400 memory accesses to 11 slices as follows [1, 2, 14, 54, 4, 4, 10, 27, 9, 267, 8]. 67 percent of accesses are in the largest equivalence class. The 84 initializations are split as follows [0, 2, 14, 9, 4, 0, 10, 8, 3, 26, 8]. The 187 writes are split as follows [0, 0, 0, 41, 0, 2, 0, 14, 0, 130, 0]. [2024-11-24 01:21:07,848 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,848 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,916 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,927 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,937 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,944 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,960 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:21:07,965 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:21:07,965 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:21:07,965 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:21:07,966 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (1/1) ... [2024-11-24 01:21:07,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:21:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:08,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:21:08,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:21:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2024-11-24 01:21:08,052 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2024-11-24 01:21:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-24 01:21:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-24 01:21:08,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-24 01:21:08,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-24 01:21:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-24 01:21:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure _dev_info [2024-11-24 01:21:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure _dev_info [2024-11-24 01:21:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_add [2024-11-24 01:21:08,054 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_add [2024-11-24 01:21:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-24 01:21:08,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-24 01:21:08,055 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-24 01:21:08,056 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-24 01:21:08,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-24 01:21:08,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-24 01:21:08,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-24 01:21:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-24 01:21:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-24 01:21:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-24 01:21:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-24 01:21:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure aem_init_ipmi_data [2024-11-24 01:21:08,059 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_init_ipmi_data [2024-11-24 01:21:08,059 INFO L130 BoogieDeclarations]: Found specification of procedure wait_for_completion_timeout [2024-11-24 01:21:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure wait_for_completion_timeout [2024-11-24 01:21:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-24 01:21:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-24 01:21:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-24 01:21:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-24 01:21:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure list_add_tail [2024-11-24 01:21:08,060 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add_tail [2024-11-24 01:21:08,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-24 01:21:08,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-24 01:21:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-24 01:21:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-24 01:21:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure aem_delete [2024-11-24 01:21:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_delete [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-24 01:21:08,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-24 01:21:08,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_device_create_file [2024-11-24 01:21:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_device_create_file [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_get [2024-11-24 01:21:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_get [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_destroy_user [2024-11-24 01:21:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_destroy_user [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-24 01:21:08,063 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 01:21:08,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 01:21:08,064 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_register [2024-11-24 01:21:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_register [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-24 01:21:08,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-24 01:21:08,065 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_unregister [2024-11-24 01:21:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_unregister [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kzalloc_6 [2024-11-24 01:21:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kzalloc_6 [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure aem_send_message [2024-11-24 01:21:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_send_message [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure driver_unregister [2024-11-24 01:21:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure driver_unregister [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure aem_register_sensors [2024-11-24 01:21:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_register_sensors [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure dev_set_drvdata [2024-11-24 01:21:08,066 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_set_drvdata [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 01:21:08,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure aem_idr_put [2024-11-24 01:21:08,067 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_idr_put [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure hwmon_device_unregister [2024-11-24 01:21:08,067 INFO L138 BoogieDeclarations]: Found implementation of procedure hwmon_device_unregister [2024-11-24 01:21:08,067 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-24 01:21:08,067 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure __mutex_init [2024-11-24 01:21:08,068 INFO L138 BoogieDeclarations]: Found implementation of procedure __mutex_init [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-24 01:21:08,068 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-24 01:21:08,068 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-24 01:21:08,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure ipmi_free_recv_msg [2024-11-24 01:21:08,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ipmi_free_recv_msg [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-24 01:21:08,069 INFO L130 BoogieDeclarations]: Found specification of procedure device_remove_file [2024-11-24 01:21:08,069 INFO L138 BoogieDeclarations]: Found implementation of procedure device_remove_file [2024-11-24 01:21:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:21:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:21:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure aem_remove_sensors [2024-11-24 01:21:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure aem_remove_sensors [2024-11-24 01:21:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure platform_device_alloc [2024-11-24 01:21:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure platform_device_alloc [2024-11-24 01:21:08,070 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-24 01:21:08,070 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-24 01:21:08,707 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:21:08,711 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:21:08,786 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-24 01:21:16,369 INFO L? ?]: Removed 609 outVars from TransFormulas that were not future-live. [2024-11-24 01:21:16,369 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:21:16,401 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:21:16,401 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-24 01:21:16,401 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:16 BoogieIcfgContainer [2024-11-24 01:21:16,402 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:21:16,409 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:21:16,409 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:21:16,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:21:16,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:21:05" (1/3) ... [2024-11-24 01:21:16,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460e144d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:16, skipping insertion in model container [2024-11-24 01:21:16,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:21:07" (2/3) ... [2024-11-24 01:21:16,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460e144d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:21:16, skipping insertion in model container [2024-11-24 01:21:16,425 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:21:16" (3/3) ... [2024-11-24 01:21:16,426 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-stable-4ee267b-1-130_7a-drivers--hwmon--ibmaem.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-24 01:21:16,448 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:21:16,453 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. [2024-11-24 01:21:16,565 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:21:16,587 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;@4fa3d4f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:21:16,587 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:21:16,593 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) [2024-11-24 01:21:16,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 298 [2024-11-24 01:21:16,642 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:16,643 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] [2024-11-24 01:21:16,646 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:16,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:16,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1973896858, now seen corresponding path program 1 times [2024-11-24 01:21:16,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:16,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733389925] [2024-11-24 01:21:16,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:16,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:19,090 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-24 01:21:19,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:19,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733389925] [2024-11-24 01:21:19,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733389925] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:19,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [187137172] [2024-11-24 01:21:19,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:19,094 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:19,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:19,099 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:19,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 01:21:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:21,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 3498 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-24 01:21:21,729 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:21,806 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 448 trivial. 0 not checked. [2024-11-24 01:21:21,806 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:21,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [187137172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:21,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:21,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-24 01:21:21,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631049402] [2024-11-24 01:21:21,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:21,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-24 01:21:21,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:21,843 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-24 01:21:21,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-24 01:21:21,847 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) [2024-11-24 01:21:21,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:21,973 INFO L93 Difference]: Finished difference Result 994 states and 1348 transitions. [2024-11-24 01:21:21,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-24 01:21:21,975 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 [2024-11-24 01:21:21,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:21,989 INFO L225 Difference]: With dead ends: 994 [2024-11-24 01:21:21,989 INFO L226 Difference]: Without dead ends: 479 [2024-11-24 01:21:21,997 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 [2024-11-24 01:21:22,001 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 [2024-11-24 01:21:22,002 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] [2024-11-24 01:21:22,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-24 01:21:22,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 479. [2024-11-24 01:21:22,098 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) [2024-11-24 01:21:22,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 629 transitions. [2024-11-24 01:21:22,114 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 629 transitions. Word has length 297 [2024-11-24 01:21:22,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:22,116 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 629 transitions. [2024-11-24 01:21:22,116 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) [2024-11-24 01:21:22,117 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 629 transitions. [2024-11-24 01:21:22,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-11-24 01:21:22,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:22,125 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] [2024-11-24 01:21:22,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-24 01:21:22,326 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:22,326 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:22,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:22,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1602422449, now seen corresponding path program 1 times [2024-11-24 01:21:22,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:22,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334339568] [2024-11-24 01:21:22,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:22,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:23,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:24,228 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 520 trivial. 0 not checked. [2024-11-24 01:21:24,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:24,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334339568] [2024-11-24 01:21:24,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334339568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:24,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:24,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:24,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094218085] [2024-11-24 01:21:24,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:24,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:24,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:24,234 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:24,234 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:24,235 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) [2024-11-24 01:21:24,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:24,424 INFO L93 Difference]: Finished difference Result 996 states and 1306 transitions. [2024-11-24 01:21:24,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:24,425 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 [2024-11-24 01:21:24,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:24,434 INFO L225 Difference]: With dead ends: 996 [2024-11-24 01:21:24,434 INFO L226 Difference]: Without dead ends: 554 [2024-11-24 01:21:24,439 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 [2024-11-24 01:21:24,440 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 [2024-11-24 01:21:24,440 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] [2024-11-24 01:21:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554 states. [2024-11-24 01:21:24,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554 to 554. [2024-11-24 01:21:24,497 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) [2024-11-24 01:21:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 725 transitions. [2024-11-24 01:21:24,506 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 725 transitions. Word has length 296 [2024-11-24 01:21:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:24,507 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 725 transitions. [2024-11-24 01:21:24,507 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) [2024-11-24 01:21:24,507 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 725 transitions. [2024-11-24 01:21:24,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-24 01:21:24,518 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:24,521 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] [2024-11-24 01:21:24,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:21:24,522 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:24,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:24,524 INFO L85 PathProgramCache]: Analyzing trace with hash -542274140, now seen corresponding path program 1 times [2024-11-24 01:21:24,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:24,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299826659] [2024-11-24 01:21:24,524 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:24,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:26,522 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2024-11-24 01:21:26,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:26,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299826659] [2024-11-24 01:21:26,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299826659] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:26,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:26,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:26,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273551] [2024-11-24 01:21:26,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:26,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:26,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:26,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:26,526 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:26,526 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) [2024-11-24 01:21:26,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:26,614 INFO L93 Difference]: Finished difference Result 1070 states and 1402 transitions. [2024-11-24 01:21:26,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:26,615 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 [2024-11-24 01:21:26,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:26,621 INFO L225 Difference]: With dead ends: 1070 [2024-11-24 01:21:26,621 INFO L226 Difference]: Without dead ends: 556 [2024-11-24 01:21:26,623 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 [2024-11-24 01:21:26,627 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 [2024-11-24 01:21:26,627 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] [2024-11-24 01:21:26,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2024-11-24 01:21:26,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 555. [2024-11-24 01:21:26,666 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) [2024-11-24 01:21:26,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 726 transitions. [2024-11-24 01:21:26,673 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 726 transitions. Word has length 308 [2024-11-24 01:21:26,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:26,676 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 726 transitions. [2024-11-24 01:21:26,676 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) [2024-11-24 01:21:26,676 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 726 transitions. [2024-11-24 01:21:26,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-24 01:21:26,686 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:26,687 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] [2024-11-24 01:21:26,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:21:26,688 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:26,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:26,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1280992752, now seen corresponding path program 1 times [2024-11-24 01:21:26,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:26,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737416672] [2024-11-24 01:21:26,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:26,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:28,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:30,330 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-24 01:21:30,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:30,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737416672] [2024-11-24 01:21:30,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737416672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:30,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:30,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:21:30,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881709950] [2024-11-24 01:21:30,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:30,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:21:30,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:30,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:21:30,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:21:30,334 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) [2024-11-24 01:21:34,409 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 [] [2024-11-24 01:21:38,435 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 [] [2024-11-24 01:21:41,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:41,442 INFO L93 Difference]: Finished difference Result 1585 states and 2089 transitions. [2024-11-24 01:21:41,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:21:41,444 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 [2024-11-24 01:21:41,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:41,467 INFO L225 Difference]: With dead ends: 1585 [2024-11-24 01:21:41,467 INFO L226 Difference]: Without dead ends: 1583 [2024-11-24 01:21:41,469 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 [2024-11-24 01:21:41,472 INFO L435 NwaCegarLoop]: 675 mSDtfsCounter, 1119 mSDsluCounter, 1432 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:41,474 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 2107 Invalid, 461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 459 Invalid, 2 Unknown, 0 Unchecked, 10.9s Time] [2024-11-24 01:21:41,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-11-24 01:21:41,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1583. [2024-11-24 01:21:41,644 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) [2024-11-24 01:21:41,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2087 transitions. [2024-11-24 01:21:41,658 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2087 transitions. Word has length 311 [2024-11-24 01:21:41,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:41,659 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2087 transitions. [2024-11-24 01:21:41,659 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) [2024-11-24 01:21:41,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2087 transitions. [2024-11-24 01:21:41,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-24 01:21:41,665 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:41,666 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] [2024-11-24 01:21:41,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:21:41,666 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:41,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:41,667 INFO L85 PathProgramCache]: Analyzing trace with hash 1943521491, now seen corresponding path program 1 times [2024-11-24 01:21:41,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:41,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366621598] [2024-11-24 01:21:41,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:41,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:42,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:43,559 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 529 trivial. 0 not checked. [2024-11-24 01:21:43,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:43,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366621598] [2024-11-24 01:21:43,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366621598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:43,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:43,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:21:43,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857340326] [2024-11-24 01:21:43,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:43,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:21:43,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:43,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:21:43,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:21:43,564 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) [2024-11-24 01:21:43,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:43,757 INFO L93 Difference]: Finished difference Result 3134 states and 4138 transitions. [2024-11-24 01:21:43,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:21:43,758 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 [2024-11-24 01:21:43,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:43,775 INFO L225 Difference]: With dead ends: 3134 [2024-11-24 01:21:43,776 INFO L226 Difference]: Without dead ends: 1595 [2024-11-24 01:21:43,781 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 [2024-11-24 01:21:43,783 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 [2024-11-24 01:21:43,784 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] [2024-11-24 01:21:43,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1595 states. [2024-11-24 01:21:43,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1595 to 1595. [2024-11-24 01:21:43,976 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) [2024-11-24 01:21:43,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2102 transitions. [2024-11-24 01:21:43,993 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2102 transitions. Word has length 329 [2024-11-24 01:21:43,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:43,995 INFO L471 AbstractCegarLoop]: Abstraction has 1595 states and 2102 transitions. [2024-11-24 01:21:43,996 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) [2024-11-24 01:21:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2102 transitions. [2024-11-24 01:21:44,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-24 01:21:44,005 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:44,005 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] [2024-11-24 01:21:44,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:21:44,006 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:44,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:44,007 INFO L85 PathProgramCache]: Analyzing trace with hash -222880935, now seen corresponding path program 1 times [2024-11-24 01:21:44,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:44,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132912102] [2024-11-24 01:21:44,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:44,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:45,814 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-24 01:21:45,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:45,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132912102] [2024-11-24 01:21:45,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132912102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:45,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:21:45,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:21:45,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415256730] [2024-11-24 01:21:45,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:45,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:21:45,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:45,817 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:21:45,818 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:21:45,818 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) [2024-11-24 01:21:45,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:45,949 INFO L93 Difference]: Finished difference Result 3152 states and 4159 transitions. [2024-11-24 01:21:45,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:21:45,949 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 [2024-11-24 01:21:45,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:45,963 INFO L225 Difference]: With dead ends: 3152 [2024-11-24 01:21:45,964 INFO L226 Difference]: Without dead ends: 1601 [2024-11-24 01:21:45,969 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 [2024-11-24 01:21:45,970 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 [2024-11-24 01:21:45,971 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] [2024-11-24 01:21:45,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2024-11-24 01:21:46,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1598. [2024-11-24 01:21:46,067 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) [2024-11-24 01:21:46,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1598 states to 1598 states and 2105 transitions. [2024-11-24 01:21:46,082 INFO L78 Accepts]: Start accepts. Automaton has 1598 states and 2105 transitions. Word has length 346 [2024-11-24 01:21:46,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:46,083 INFO L471 AbstractCegarLoop]: Abstraction has 1598 states and 2105 transitions. [2024-11-24 01:21:46,083 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) [2024-11-24 01:21:46,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1598 states and 2105 transitions. [2024-11-24 01:21:46,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-24 01:21:46,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:46,093 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] [2024-11-24 01:21:46,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:21:46,094 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:46,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:46,094 INFO L85 PathProgramCache]: Analyzing trace with hash 831068044, now seen corresponding path program 1 times [2024-11-24 01:21:46,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:46,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455479346] [2024-11-24 01:21:46,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:46,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:47,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:49,534 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:21:49,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:49,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455479346] [2024-11-24 01:21:49,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455479346] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:49,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102482416] [2024-11-24 01:21:49,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:49,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:49,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:49,540 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:49,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 01:21:52,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:52,038 INFO L256 TraceCheckSpWp]: Trace formula consists of 3760 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:52,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:52,264 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:21:52,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:52,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102482416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:52,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:52,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-24 01:21:52,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865644442] [2024-11-24 01:21:52,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:52,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:52,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:52,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:52,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:21:52,267 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) [2024-11-24 01:21:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:53,308 INFO L93 Difference]: Finished difference Result 3158 states and 4165 transitions. [2024-11-24 01:21:53,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:53,309 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 [2024-11-24 01:21:53,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:53,324 INFO L225 Difference]: With dead ends: 3158 [2024-11-24 01:21:53,324 INFO L226 Difference]: Without dead ends: 1604 [2024-11-24 01:21:53,331 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 [2024-11-24 01:21:53,332 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 0.9s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:53,334 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-24 01:21:53,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2024-11-24 01:21:53,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2024-11-24 01:21:53,419 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) [2024-11-24 01:21:53,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2111 transitions. [2024-11-24 01:21:53,436 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2111 transitions. Word has length 353 [2024-11-24 01:21:53,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:53,440 INFO L471 AbstractCegarLoop]: Abstraction has 1604 states and 2111 transitions. [2024-11-24 01:21:53,440 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) [2024-11-24 01:21:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2111 transitions. [2024-11-24 01:21:53,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 347 [2024-11-24 01:21:53,447 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:53,447 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] [2024-11-24 01:21:53,468 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-24 01:21:53,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:53,648 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:53,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:53,649 INFO L85 PathProgramCache]: Analyzing trace with hash 672402133, now seen corresponding path program 1 times [2024-11-24 01:21:53,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:53,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196805237] [2024-11-24 01:21:53,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:53,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:21:54,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:55,349 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:21:55,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:21:55,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196805237] [2024-11-24 01:21:55,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196805237] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:21:55,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162047661] [2024-11-24 01:21:55,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:55,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:55,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:21:55,352 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:21:55,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 01:21:58,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:21:58,025 INFO L256 TraceCheckSpWp]: Trace formula consists of 3901 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:21:58,044 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:21:58,171 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-24 01:21:58,171 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:21:58,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162047661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:21:58,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:21:58,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:21:58,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371335985] [2024-11-24 01:21:58,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:21:58,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:21:58,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:21:58,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:21:58,177 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:21:58,177 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) [2024-11-24 01:21:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:21:59,045 INFO L93 Difference]: Finished difference Result 3170 states and 4177 transitions. [2024-11-24 01:21:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:21:59,046 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 [2024-11-24 01:21:59,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:21:59,061 INFO L225 Difference]: With dead ends: 3170 [2024-11-24 01:21:59,061 INFO L226 Difference]: Without dead ends: 1610 [2024-11-24 01:21:59,069 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 [2024-11-24 01:21:59,069 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:21:59,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1872 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:21:59,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1610 states. [2024-11-24 01:21:59,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1610 to 1610. [2024-11-24 01:21:59,181 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) [2024-11-24 01:21:59,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2024-11-24 01:21:59,197 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 346 [2024-11-24 01:21:59,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:21:59,198 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2024-11-24 01:21:59,198 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) [2024-11-24 01:21:59,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2024-11-24 01:21:59,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-24 01:21:59,210 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:21:59,211 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] [2024-11-24 01:21:59,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 01:21:59,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:21:59,412 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:21:59,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:21:59,413 INFO L85 PathProgramCache]: Analyzing trace with hash 756519901, now seen corresponding path program 1 times [2024-11-24 01:21:59,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:21:59,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742282472] [2024-11-24 01:21:59,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:21:59,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:00,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:01,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:01,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742282472] [2024-11-24 01:22:01,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742282472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:01,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323452288] [2024-11-24 01:22:01,147 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:01,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:01,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:01,150 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:01,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 01:22:03,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:03,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 3905 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:22:03,545 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:03,646 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 535 trivial. 0 not checked. [2024-11-24 01:22:03,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:03,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323452288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:03,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:03,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:22:03,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719435539] [2024-11-24 01:22:03,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:03,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:22:03,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:03,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:22:03,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:22:03,648 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) [2024-11-24 01:22:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:04,105 INFO L93 Difference]: Finished difference Result 3182 states and 4189 transitions. [2024-11-24 01:22:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:22:04,106 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 [2024-11-24 01:22:04,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:04,118 INFO L225 Difference]: With dead ends: 3182 [2024-11-24 01:22:04,119 INFO L226 Difference]: Without dead ends: 1616 [2024-11-24 01:22:04,124 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 [2024-11-24 01:22:04,125 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:04,125 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1872 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:22:04,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-24 01:22:04,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1610. [2024-11-24 01:22:04,272 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) [2024-11-24 01:22:04,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2024-11-24 01:22:04,282 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 348 [2024-11-24 01:22:04,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:04,284 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2024-11-24 01:22:04,284 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) [2024-11-24 01:22:04,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2024-11-24 01:22:04,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-24 01:22:04,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:04,290 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] [2024-11-24 01:22:04,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:04,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:04,491 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:04,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:04,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1235233364, now seen corresponding path program 1 times [2024-11-24 01:22:04,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:04,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882472883] [2024-11-24 01:22:04,491 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:04,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:06,778 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:06,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:06,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882472883] [2024-11-24 01:22:06,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882472883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:06,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399634036] [2024-11-24 01:22:06,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:06,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:06,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:06,784 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:06,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 01:22:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:09,197 INFO L256 TraceCheckSpWp]: Trace formula consists of 3764 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 01:22:09,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:09,416 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:09,416 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:22:09,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399634036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:09,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:22:09,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2024-11-24 01:22:09,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553614570] [2024-11-24 01:22:09,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:09,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:22:09,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:09,419 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:22:09,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:09,421 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) [2024-11-24 01:22:10,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:10,250 INFO L93 Difference]: Finished difference Result 3182 states and 4189 transitions. [2024-11-24 01:22:10,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:22:10,251 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 [2024-11-24 01:22:10,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:10,265 INFO L225 Difference]: With dead ends: 3182 [2024-11-24 01:22:10,266 INFO L226 Difference]: Without dead ends: 1616 [2024-11-24 01:22:10,272 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:22:10,273 INFO L435 NwaCegarLoop]: 627 mSDtfsCounter, 0 mSDsluCounter, 1244 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:10,274 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1871 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-24 01:22:10,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-24 01:22:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1610. [2024-11-24 01:22:10,374 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) [2024-11-24 01:22:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2117 transitions. [2024-11-24 01:22:10,390 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2117 transitions. Word has length 355 [2024-11-24 01:22:10,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:10,391 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2117 transitions. [2024-11-24 01:22:10,391 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) [2024-11-24 01:22:10,391 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2117 transitions. [2024-11-24 01:22:10,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-24 01:22:10,398 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:10,398 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] [2024-11-24 01:22:10,421 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-24 01:22:10,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:10,599 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:10,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash 327359364, now seen corresponding path program 1 times [2024-11-24 01:22:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:10,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341478169] [2024-11-24 01:22:10,602 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:11,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:12,053 INFO L134 CoverageAnalysis]: Checked inductivity of 542 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 537 trivial. 0 not checked. [2024-11-24 01:22:12,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:12,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341478169] [2024-11-24 01:22:12,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341478169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:12,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:12,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:22:12,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004819509] [2024-11-24 01:22:12,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:12,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:22:12,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:12,055 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:22:12,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:22:12,056 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) [2024-11-24 01:22:12,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:12,765 INFO L93 Difference]: Finished difference Result 3179 states and 4186 transitions. [2024-11-24 01:22:12,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:22:12,766 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 [2024-11-24 01:22:12,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:12,784 INFO L225 Difference]: With dead ends: 3179 [2024-11-24 01:22:12,784 INFO L226 Difference]: Without dead ends: 1613 [2024-11-24 01:22:12,789 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 [2024-11-24 01:22:12,790 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 0 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s 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, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:12,790 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:22:12,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2024-11-24 01:22:12,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1613. [2024-11-24 01:22:12,912 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) [2024-11-24 01:22:12,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1613 states to 1613 states and 2120 transitions. [2024-11-24 01:22:12,922 INFO L78 Accepts]: Start accepts. Automaton has 1613 states and 2120 transitions. Word has length 350 [2024-11-24 01:22:12,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:12,923 INFO L471 AbstractCegarLoop]: Abstraction has 1613 states and 2120 transitions. [2024-11-24 01:22:12,923 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) [2024-11-24 01:22:12,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1613 states and 2120 transitions. [2024-11-24 01:22:12,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-24 01:22:12,927 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:12,928 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] [2024-11-24 01:22:12,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:22:12,928 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:12,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:12,929 INFO L85 PathProgramCache]: Analyzing trace with hash -685579314, now seen corresponding path program 1 times [2024-11-24 01:22:12,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:12,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901633047] [2024-11-24 01:22:12,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:14,402 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-24 01:22:14,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:14,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901633047] [2024-11-24 01:22:14,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [901633047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:14,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [358901681] [2024-11-24 01:22:14,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:14,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:14,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:14,407 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:14,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 01:22:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:17,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 3978 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 01:22:17,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:17,330 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:17,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 538 trivial. 0 not checked. [2024-11-24 01:22:18,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [358901681] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:22:18,687 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:22:18,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-11-24 01:22:18,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543643217] [2024-11-24 01:22:18,687 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:18,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:22:18,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:18,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:22:18,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:22:18,691 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) [2024-11-24 01:22:18,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:18,793 INFO L93 Difference]: Finished difference Result 3188 states and 4195 transitions. [2024-11-24 01:22:18,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:22:18,794 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 [2024-11-24 01:22:18,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:18,805 INFO L225 Difference]: With dead ends: 3188 [2024-11-24 01:22:18,805 INFO L226 Difference]: Without dead ends: 1619 [2024-11-24 01:22:18,810 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 [2024-11-24 01:22:18,812 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 [2024-11-24 01:22:18,813 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] [2024-11-24 01:22:18,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2024-11-24 01:22:18,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1619. [2024-11-24 01:22:18,883 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) [2024-11-24 01:22:18,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1619 states to 1619 states and 2126 transitions. [2024-11-24 01:22:18,903 INFO L78 Accepts]: Start accepts. Automaton has 1619 states and 2126 transitions. Word has length 353 [2024-11-24 01:22:18,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:18,904 INFO L471 AbstractCegarLoop]: Abstraction has 1619 states and 2126 transitions. [2024-11-24 01:22:18,905 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) [2024-11-24 01:22:18,905 INFO L276 IsEmpty]: Start isEmpty. Operand 1619 states and 2126 transitions. [2024-11-24 01:22:18,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-24 01:22:18,909 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:18,909 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] [2024-11-24 01:22:18,933 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-24 01:22:19,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-24 01:22:19,110 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:19,111 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:19,111 INFO L85 PathProgramCache]: Analyzing trace with hash -529602121, now seen corresponding path program 1 times [2024-11-24 01:22:19,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:19,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938872786] [2024-11-24 01:22:19,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:19,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:19,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:20,172 INFO L134 CoverageAnalysis]: Checked inductivity of 541 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:20,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:20,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938872786] [2024-11-24 01:22:20,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938872786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:22:20,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:22:20,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:22:20,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34589692] [2024-11-24 01:22:20,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:22:20,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:22:20,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:20,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:22:20,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:22:20,174 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) [2024-11-24 01:22:20,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:22:20,593 INFO L93 Difference]: Finished difference Result 3197 states and 4204 transitions. [2024-11-24 01:22:20,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:22:20,594 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 [2024-11-24 01:22:20,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:22:20,605 INFO L225 Difference]: With dead ends: 3197 [2024-11-24 01:22:20,605 INFO L226 Difference]: Without dead ends: 1622 [2024-11-24 01:22:20,610 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 [2024-11-24 01:22:20,610 INFO L435 NwaCegarLoop]: 628 mSDtfsCounter, 0 mSDsluCounter, 622 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:22:20,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1250 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-24 01:22:20,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1622 states. [2024-11-24 01:22:20,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1622 to 1622. [2024-11-24 01:22:20,670 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) [2024-11-24 01:22:20,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1622 states to 1622 states and 2129 transitions. [2024-11-24 01:22:20,681 INFO L78 Accepts]: Start accepts. Automaton has 1622 states and 2129 transitions. Word has length 353 [2024-11-24 01:22:20,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:22:20,682 INFO L471 AbstractCegarLoop]: Abstraction has 1622 states and 2129 transitions. [2024-11-24 01:22:20,682 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) [2024-11-24 01:22:20,683 INFO L276 IsEmpty]: Start isEmpty. Operand 1622 states and 2129 transitions. [2024-11-24 01:22:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-24 01:22:20,687 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:22:20,687 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] [2024-11-24 01:22:20,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:22:20,688 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:22:20,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:22:20,688 INFO L85 PathProgramCache]: Analyzing trace with hash 821074877, now seen corresponding path program 1 times [2024-11-24 01:22:20,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:22:20,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036914111] [2024-11-24 01:22:20,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:20,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:22:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:23,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:22:23,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036914111] [2024-11-24 01:22:23,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036914111] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:22:23,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37524123] [2024-11-24 01:22:23,165 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:22:23,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:22:23,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:22:23,168 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:22:23,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-24 01:22:25,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:22:25,923 INFO L256 TraceCheckSpWp]: Trace formula consists of 3798 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-24 01:22:25,932 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:22:31,335 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 533 trivial. 0 not checked. [2024-11-24 01:22:31,335 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:22:33,796 INFO L134 CoverageAnalysis]: Checked inductivity of 545 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 536 trivial. 0 not checked. [2024-11-24 01:22:33,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37524123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:22:33,796 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:22:33,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 18 [2024-11-24 01:22:33,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783873896] [2024-11-24 01:22:33,797 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:22:33,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:22:33,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:22:33,800 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:22:33,800 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2024-11-24 01:22:33,802 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) [2024-11-24 01:22:37,826 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 [] [2024-11-24 01:22:41,905 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:22:45,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:22:50,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:22:54,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:22:58,101 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:02,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:06,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:10,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:14,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:18,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:34,880 INFO L93 Difference]: Finished difference Result 2281 states and 3031 transitions. [2024-11-24 01:23:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-24 01:23:34,881 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 [2024-11-24 01:23:34,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:34,898 INFO L225 Difference]: With dead ends: 2281 [2024-11-24 01:23:34,898 INFO L226 Difference]: Without dead ends: 2279 [2024-11-24 01:23:34,900 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 [2024-11-24 01:23:34,902 INFO L435 NwaCegarLoop]: 389 mSDtfsCounter, 6512 mSDsluCounter, 2806 mSDsCounter, 0 mSdLazyCounter, 2721 mSolverCounterSat, 3415 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 58.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6657 SdHoareTripleChecker+Valid, 3195 SdHoareTripleChecker+Invalid, 6147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3415 IncrementalHoareTripleChecker+Valid, 2721 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 60.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:34,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6657 Valid, 3195 Invalid, 6147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3415 Valid, 2721 Invalid, 11 Unknown, 0 Unchecked, 60.0s Time] [2024-11-24 01:23:34,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2279 states. [2024-11-24 01:23:35,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2279 to 2279. [2024-11-24 01:23:35,045 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) [2024-11-24 01:23:35,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2279 states to 2279 states and 3029 transitions. [2024-11-24 01:23:35,058 INFO L78 Accepts]: Start accepts. Automaton has 2279 states and 3029 transitions. Word has length 355 [2024-11-24 01:23:35,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:35,059 INFO L471 AbstractCegarLoop]: Abstraction has 2279 states and 3029 transitions. [2024-11-24 01:23:35,060 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) [2024-11-24 01:23:35,060 INFO L276 IsEmpty]: Start isEmpty. Operand 2279 states and 3029 transitions. [2024-11-24 01:23:35,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-24 01:23:35,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:35,066 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] [2024-11-24 01:23:35,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-24 01:23:35,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:23:35,268 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:35,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1555601325, now seen corresponding path program 2 times [2024-11-24 01:23:35,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:35,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709392180] [2024-11-24 01:23:35,269 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:23:35,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:36,116 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 01:23:36,116 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:23:42,103 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-11-24 01:23:42,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:42,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709392180] [2024-11-24 01:23:42,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709392180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:42,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:42,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:42,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845237574] [2024-11-24 01:23:42,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:42,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:42,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:42,106 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:42,106 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:42,107 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) [2024-11-24 01:23:46,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:50,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:23:52,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:52,993 INFO L93 Difference]: Finished difference Result 4808 states and 6455 transitions. [2024-11-24 01:23:52,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:52,994 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 [2024-11-24 01:23:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:53,011 INFO L225 Difference]: With dead ends: 4808 [2024-11-24 01:23:53,011 INFO L226 Difference]: Without dead ends: 2573 [2024-11-24 01:23:53,020 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 [2024-11-24 01:23:53,022 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 574 mSDsluCounter, 1497 mSDsCounter, 0 mSdLazyCounter, 474 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.3s 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, 10.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:23:53,022 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 2148 Invalid, 485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 474 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-24 01:23:53,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2573 states. [2024-11-24 01:23:53,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2573 to 2516. [2024-11-24 01:23:53,284 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) [2024-11-24 01:23:53,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 3383 transitions. [2024-11-24 01:23:53,298 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 3383 transitions. Word has length 373 [2024-11-24 01:23:53,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:53,298 INFO L471 AbstractCegarLoop]: Abstraction has 2516 states and 3383 transitions. [2024-11-24 01:23:53,299 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) [2024-11-24 01:23:53,299 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 3383 transitions. [2024-11-24 01:23:53,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-24 01:23:53,303 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:53,304 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] [2024-11-24 01:23:53,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-24 01:23:53,305 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:53,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:53,306 INFO L85 PathProgramCache]: Analyzing trace with hash -1385794894, now seen corresponding path program 1 times [2024-11-24 01:23:53,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:53,307 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124942528] [2024-11-24 01:23:53,307 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:55,525 INFO L134 CoverageAnalysis]: Checked inductivity of 562 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2024-11-24 01:23:55,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:55,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124942528] [2024-11-24 01:23:55,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124942528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:55,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:55,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:23:55,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142243278] [2024-11-24 01:23:55,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:55,527 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:23:55,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:55,528 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:23:55,528 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:23:55,529 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) [2024-11-24 01:23:55,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:55,979 INFO L93 Difference]: Finished difference Result 5008 states and 6740 transitions. [2024-11-24 01:23:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:23:55,980 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 [2024-11-24 01:23:55,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:55,995 INFO L225 Difference]: With dead ends: 5008 [2024-11-24 01:23:55,995 INFO L226 Difference]: Without dead ends: 2536 [2024-11-24 01:23:56,003 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 [2024-11-24 01:23:56,004 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 [2024-11-24 01:23:56,004 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] [2024-11-24 01:23:56,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2536 states. [2024-11-24 01:23:56,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2536 to 2536. [2024-11-24 01:23:56,187 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) [2024-11-24 01:23:56,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2536 states to 2536 states and 3407 transitions. [2024-11-24 01:23:56,202 INFO L78 Accepts]: Start accepts. Automaton has 2536 states and 3407 transitions. Word has length 371 [2024-11-24 01:23:56,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:56,203 INFO L471 AbstractCegarLoop]: Abstraction has 2536 states and 3407 transitions. [2024-11-24 01:23:56,203 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) [2024-11-24 01:23:56,203 INFO L276 IsEmpty]: Start isEmpty. Operand 2536 states and 3407 transitions. [2024-11-24 01:23:56,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2024-11-24 01:23:56,209 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:56,209 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, 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] [2024-11-24 01:23:56,209 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-24 01:23:56,210 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:56,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:56,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1451396307, now seen corresponding path program 1 times [2024-11-24 01:23:56,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:56,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783243585] [2024-11-24 01:23:56,211 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:56,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:57,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:23:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 568 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 558 trivial. 0 not checked. [2024-11-24 01:23:57,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:23:57,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783243585] [2024-11-24 01:23:57,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783243585] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:23:57,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:23:57,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:23:57,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123073777] [2024-11-24 01:23:57,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:23:57,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:23:57,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:23:57,597 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:23:57,598 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:23:57,598 INFO L87 Difference]: Start difference. First operand 2536 states and 3407 transitions. Second operand has 5 states, 5 states have (on average 31.6) 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), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-24 01:23:57,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:23:57,818 INFO L93 Difference]: Finished difference Result 5036 states and 6772 transitions. [2024-11-24 01:23:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:23:57,819 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.6) 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), 3 states have call predecessors, (35), 2 states have call successors, (35) Word has length 373 [2024-11-24 01:23:57,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:23:57,840 INFO L225 Difference]: With dead ends: 5036 [2024-11-24 01:23:57,842 INFO L226 Difference]: Without dead ends: 2544 [2024-11-24 01:23:57,850 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 [2024-11-24 01:23:57,852 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 [2024-11-24 01:23:57,852 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] [2024-11-24 01:23:57,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2544 states. [2024-11-24 01:23:58,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2544 to 2544. [2024-11-24 01:23:58,025 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) [2024-11-24 01:23:58,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3415 transitions. [2024-11-24 01:23:58,041 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3415 transitions. Word has length 373 [2024-11-24 01:23:58,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:23:58,042 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 3415 transitions. [2024-11-24 01:23:58,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.6) 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), 3 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-24 01:23:58,042 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3415 transitions. [2024-11-24 01:23:58,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2024-11-24 01:23:58,047 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:23:58,048 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:23:58,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-24 01:23:58,048 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:23:58,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:23:58,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1301355414, now seen corresponding path program 1 times [2024-11-24 01:23:58,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:23:58,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392791435] [2024-11-24 01:23:58,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:23:58,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:23:59,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:01,092 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2024-11-24 01:24:01,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:01,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392791435] [2024-11-24 01:24:01,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392791435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:01,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:01,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:01,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654086219] [2024-11-24 01:24:01,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:01,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:01,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:01,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:01,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:01,094 INFO L87 Difference]: Start difference. First operand 2544 states and 3415 transitions. Second operand has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-24 01:24:01,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:01,386 INFO L93 Difference]: Finished difference Result 5052 states and 6788 transitions. [2024-11-24 01:24:01,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:01,387 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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 394 [2024-11-24 01:24:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:01,405 INFO L225 Difference]: With dead ends: 5052 [2024-11-24 01:24:01,405 INFO L226 Difference]: Without dead ends: 2552 [2024-11-24 01:24:01,413 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 [2024-11-24 01:24:01,414 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 [2024-11-24 01:24:01,414 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] [2024-11-24 01:24:01,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2024-11-24 01:24:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2552. [2024-11-24 01:24:01,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2552 states, 1875 states have (on average 1.2538666666666667) internal successors, (2351), 1904 states have internal predecessors, (2351), 483 states have call successors, (483), 172 states have call predecessors, (483), 193 states have return successors, (589), 499 states have call predecessors, (589), 483 states have call successors, (589) [2024-11-24 01:24:01,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2552 states to 2552 states and 3423 transitions. [2024-11-24 01:24:01,603 INFO L78 Accepts]: Start accepts. Automaton has 2552 states and 3423 transitions. Word has length 394 [2024-11-24 01:24:01,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:01,604 INFO L471 AbstractCegarLoop]: Abstraction has 2552 states and 3423 transitions. [2024-11-24 01:24:01,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.0) internal successors, (168), 5 states have internal predecessors, (168), 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) [2024-11-24 01:24:01,604 INFO L276 IsEmpty]: Start isEmpty. Operand 2552 states and 3423 transitions. [2024-11-24 01:24:01,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-24 01:24:01,609 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:01,610 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] [2024-11-24 01:24:01,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-24 01:24:01,610 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:01,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:01,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1514288946, now seen corresponding path program 1 times [2024-11-24 01:24:01,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:01,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419161147] [2024-11-24 01:24:01,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:05,721 INFO L134 CoverageAnalysis]: Checked inductivity of 682 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 672 trivial. 0 not checked. [2024-11-24 01:24:05,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:05,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419161147] [2024-11-24 01:24:05,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419161147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:05,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:05,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:05,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146809640] [2024-11-24 01:24:05,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:05,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:05,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:05,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:05,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:05,725 INFO L87 Difference]: Start difference. First operand 2552 states and 3423 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) [2024-11-24 01:24:09,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:24:13,799 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:24:16,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:16,254 INFO L93 Difference]: Finished difference Result 5125 states and 6897 transitions. [2024-11-24 01:24:16,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:16,255 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 [2024-11-24 01:24:16,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:16,273 INFO L225 Difference]: With dead ends: 5125 [2024-11-24 01:24:16,274 INFO L226 Difference]: Without dead ends: 2617 [2024-11-24 01:24:16,282 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 [2024-11-24 01:24:16,283 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 [2024-11-24 01:24:16,283 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] [2024-11-24 01:24:16,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2024-11-24 01:24:16,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2560. [2024-11-24 01:24:16,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2560 states, 1883 states have (on average 1.2527881040892193) internal successors, (2359), 1912 states have internal predecessors, (2359), 483 states have call successors, (483), 172 states have call predecessors, (483), 193 states have return successors, (589), 499 states have call predecessors, (589), 483 states have call successors, (589) [2024-11-24 01:24:16,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2560 states to 2560 states and 3431 transitions. [2024-11-24 01:24:16,515 INFO L78 Accepts]: Start accepts. Automaton has 2560 states and 3431 transitions. Word has length 400 [2024-11-24 01:24:16,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:16,517 INFO L471 AbstractCegarLoop]: Abstraction has 2560 states and 3431 transitions. [2024-11-24 01:24:16,517 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) [2024-11-24 01:24:16,517 INFO L276 IsEmpty]: Start isEmpty. Operand 2560 states and 3431 transitions. [2024-11-24 01:24:16,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2024-11-24 01:24:16,525 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:16,525 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:16,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-24 01:24:16,526 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:16,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:16,526 INFO L85 PathProgramCache]: Analyzing trace with hash 370325270, now seen corresponding path program 1 times [2024-11-24 01:24:16,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:16,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781309943] [2024-11-24 01:24:16,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:16,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:17,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-24 01:24:20,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:20,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781309943] [2024-11-24 01:24:20,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781309943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:20,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:24:20,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:24:20,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078646181] [2024-11-24 01:24:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:20,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:24:20,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:20,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:24:20,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:24:20,918 INFO L87 Difference]: Start difference. First operand 2560 states and 3431 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 5 states have internal predecessors, (171), 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) [2024-11-24 01:24:24,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:24:28,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:24:31,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:31,749 INFO L93 Difference]: Finished difference Result 5175 states and 6969 transitions. [2024-11-24 01:24:31,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:24:31,749 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), 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 420 [2024-11-24 01:24:31,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:31,764 INFO L225 Difference]: With dead ends: 5175 [2024-11-24 01:24:31,764 INFO L226 Difference]: Without dead ends: 2659 [2024-11-24 01:24:31,770 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 [2024-11-24 01:24:31,771 INFO L435 NwaCegarLoop]: 651 mSDtfsCounter, 575 mSDsluCounter, 1489 mSDsCounter, 0 mSdLazyCounter, 473 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 473 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:31,771 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [577 Valid, 2140 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 473 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-24 01:24:31,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2659 states. [2024-11-24 01:24:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2659 to 2578. [2024-11-24 01:24:32,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2578 states, 1901 states have (on average 1.2503945291951604) internal successors, (2377), 1930 states have internal predecessors, (2377), 483 states have call successors, (483), 172 states have call predecessors, (483), 193 states have return successors, (589), 499 states have call predecessors, (589), 483 states have call successors, (589) [2024-11-24 01:24:32,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3449 transitions. [2024-11-24 01:24:32,035 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3449 transitions. Word has length 420 [2024-11-24 01:24:32,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:32,036 INFO L471 AbstractCegarLoop]: Abstraction has 2578 states and 3449 transitions. [2024-11-24 01:24:32,036 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), 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) [2024-11-24 01:24:32,036 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3449 transitions. [2024-11-24 01:24:32,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2024-11-24 01:24:32,041 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:32,042 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] [2024-11-24 01:24:32,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-24 01:24:32,042 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:32,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1492708686, now seen corresponding path program 1 times [2024-11-24 01:24:32,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:32,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800506087] [2024-11-24 01:24:32,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:32,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:34,457 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-11-24 01:24:34,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:34,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800506087] [2024-11-24 01:24:34,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800506087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:34,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [488028520] [2024-11-24 01:24:34,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:34,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:34,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:34,461 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:34,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-24 01:24:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:37,911 INFO L256 TraceCheckSpWp]: Trace formula consists of 3972 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:24:37,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-24 01:24:38,388 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:24:38,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [488028520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:38,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:38,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-24 01:24:38,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114356260] [2024-11-24 01:24:38,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:38,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:24:38,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:38,390 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:24:38,390 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:38,390 INFO L87 Difference]: Start difference. First operand 2578 states and 3449 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 6 states have internal predecessors, (174), 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) [2024-11-24 01:24:38,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:38,856 INFO L93 Difference]: Finished difference Result 5128 states and 6868 transitions. [2024-11-24 01:24:38,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:24:38,857 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 6 states have internal predecessors, (174), 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 400 [2024-11-24 01:24:38,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:38,875 INFO L225 Difference]: With dead ends: 5128 [2024-11-24 01:24:38,876 INFO L226 Difference]: Without dead ends: 2594 [2024-11-24 01:24:38,886 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:38,886 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, 0.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:38,888 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4332 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-24 01:24:38,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2024-11-24 01:24:39,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 2586. [2024-11-24 01:24:39,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2586 states, 1905 states have (on average 1.2498687664041994) internal successors, (2381), 1938 states have internal predecessors, (2381), 483 states have call successors, (483), 172 states have call predecessors, (483), 197 states have return successors, (597), 499 states have call predecessors, (597), 483 states have call successors, (597) [2024-11-24 01:24:39,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2586 states to 2586 states and 3461 transitions. [2024-11-24 01:24:39,084 INFO L78 Accepts]: Start accepts. Automaton has 2586 states and 3461 transitions. Word has length 400 [2024-11-24 01:24:39,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:39,084 INFO L471 AbstractCegarLoop]: Abstraction has 2586 states and 3461 transitions. [2024-11-24 01:24:39,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 6 states have internal predecessors, (174), 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) [2024-11-24 01:24:39,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2586 states and 3461 transitions. [2024-11-24 01:24:39,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-24 01:24:39,089 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:39,089 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] [2024-11-24 01:24:39,116 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-24 01:24:39,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:39,290 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:39,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:39,291 INFO L85 PathProgramCache]: Analyzing trace with hash 207462290, now seen corresponding path program 1 times [2024-11-24 01:24:39,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:39,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868172256] [2024-11-24 01:24:39,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:39,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:41,537 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 663 trivial. 0 not checked. [2024-11-24 01:24:41,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:41,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868172256] [2024-11-24 01:24:41,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868172256] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:41,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [563129894] [2024-11-24 01:24:41,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:41,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:41,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:41,540 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:41,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-24 01:24:45,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:45,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 4034 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-24 01:24:45,072 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:45,210 INFO L134 CoverageAnalysis]: Checked inductivity of 677 backedges. 102 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-11-24 01:24:45,211 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:24:45,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [563129894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:45,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:45,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 7 [2024-11-24 01:24:45,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903108959] [2024-11-24 01:24:45,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:45,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:24:45,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:45,213 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:24:45,213 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:24:45,214 INFO L87 Difference]: Start difference. First operand 2586 states and 3461 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) [2024-11-24 01:24:49,237 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 [] [2024-11-24 01:24:49,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:49,587 INFO L93 Difference]: Finished difference Result 5148 states and 6896 transitions. [2024-11-24 01:24:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:24:49,588 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 [2024-11-24 01:24:49,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:49,603 INFO L225 Difference]: With dead ends: 5148 [2024-11-24 01:24:49,603 INFO L226 Difference]: Without dead ends: 2534 [2024-11-24 01:24:49,610 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 [2024-11-24 01:24:49,612 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 [2024-11-24 01:24:49,612 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] [2024-11-24 01:24:49,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2534 states. [2024-11-24 01:24:49,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2534 to 2510. [2024-11-24 01:24:49,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2510 states, 1845 states have (on average 1.2449864498644987) internal successors, (2297), 1878 states have internal predecessors, (2297), 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) [2024-11-24 01:24:49,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2510 states to 2510 states and 3361 transitions. [2024-11-24 01:24:49,813 INFO L78 Accepts]: Start accepts. Automaton has 2510 states and 3361 transitions. Word has length 401 [2024-11-24 01:24:49,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:49,814 INFO L471 AbstractCegarLoop]: Abstraction has 2510 states and 3361 transitions. [2024-11-24 01:24:49,814 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) [2024-11-24 01:24:49,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2510 states and 3361 transitions. [2024-11-24 01:24:49,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-24 01:24:49,819 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:49,819 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:24:49,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-24 01:24:50,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-24 01:24:50,020 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:50,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:50,021 INFO L85 PathProgramCache]: Analyzing trace with hash 729374947, now seen corresponding path program 1 times [2024-11-24 01:24:50,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:50,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287359880] [2024-11-24 01:24:50,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:50,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:51,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:52,454 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-24 01:24:52,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:52,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287359880] [2024-11-24 01:24:52,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287359880] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:52,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722782354] [2024-11-24 01:24:52,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:52,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:52,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:52,457 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:52,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-24 01:24:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:56,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 4340 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-24 01:24:56,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:24:56,796 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-24 01:24:56,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:24:56,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722782354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:24:56,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:24:56,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [4] total 10 [2024-11-24 01:24:56,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790199388] [2024-11-24 01:24:56,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:24:56,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-24 01:24:56,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:24:56,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-24 01:24:56,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:56,799 INFO L87 Difference]: Start difference. First operand 2510 states and 3361 transitions. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:24:57,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:24:57,274 INFO L93 Difference]: Finished difference Result 4984 states and 6680 transitions. [2024-11-24 01:24:57,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:24:57,275 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 423 [2024-11-24 01:24:57,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:24:57,292 INFO L225 Difference]: With dead ends: 4984 [2024-11-24 01:24:57,293 INFO L226 Difference]: Without dead ends: 2518 [2024-11-24 01:24:57,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 418 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:24:57,301 INFO L435 NwaCegarLoop]: 612 mSDtfsCounter, 0 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:24:57,301 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4269 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:24:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2024-11-24 01:24:57,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2502. [2024-11-24 01:24:57,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2502 states, 1841 states have (on average 1.2455187398153178) internal successors, (2293), 1870 states have internal predecessors, (2293), 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) [2024-11-24 01:24:57,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2502 states to 2502 states and 3349 transitions. [2024-11-24 01:24:57,488 INFO L78 Accepts]: Start accepts. Automaton has 2502 states and 3349 transitions. Word has length 423 [2024-11-24 01:24:57,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:24:57,488 INFO L471 AbstractCegarLoop]: Abstraction has 2502 states and 3349 transitions. [2024-11-24 01:24:57,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 6 states have internal predecessors, (176), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:24:57,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2502 states and 3349 transitions. [2024-11-24 01:24:57,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-24 01:24:57,492 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:24:57,492 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] [2024-11-24 01:24:57,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-24 01:24:57,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-24 01:24:57,693 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:24:57,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:24:57,694 INFO L85 PathProgramCache]: Analyzing trace with hash -31629674, now seen corresponding path program 1 times [2024-11-24 01:24:57,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:24:57,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977472917] [2024-11-24 01:24:57,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:57,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:24:58,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:24:59,510 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 661 trivial. 0 not checked. [2024-11-24 01:24:59,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:24:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977472917] [2024-11-24 01:24:59,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977472917] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:24:59,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390013272] [2024-11-24 01:24:59,511 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:24:59,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:24:59,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:24:59,513 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:24:59,515 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-24 01:25:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:03,592 INFO L256 TraceCheckSpWp]: Trace formula consists of 3990 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-24 01:25:03,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:03,987 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-24 01:25:03,987 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:25:03,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390013272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:25:03,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:25:03,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-11-24 01:25:03,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363617860] [2024-11-24 01:25:03,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:25:03,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:25:03,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:25:03,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:25:03,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:25:03,993 INFO L87 Difference]: Start difference. First operand 2502 states and 3349 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) [2024-11-24 01:25:04,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:25:04,293 INFO L93 Difference]: Finished difference Result 4996 states and 6696 transitions. [2024-11-24 01:25:04,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:25:04,293 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 [2024-11-24 01:25:04,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:25:04,308 INFO L225 Difference]: With dead ends: 4996 [2024-11-24 01:25:04,308 INFO L226 Difference]: Without dead ends: 2538 [2024-11-24 01:25:04,315 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 397 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:25:04,316 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 [2024-11-24 01:25:04,316 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] [2024-11-24 01:25:04,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2024-11-24 01:25:04,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2530. [2024-11-24 01:25:04,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 1861 states have (on average 1.2428801719505642) internal successors, (2313), 1890 states have internal predecessors, (2313), 475 states have call successors, (475), 164 states have call predecessors, (475), 193 states have return successors, (601), 499 states have call predecessors, (601), 475 states have call successors, (601) [2024-11-24 01:25:04,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 3389 transitions. [2024-11-24 01:25:04,575 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 3389 transitions. Word has length 401 [2024-11-24 01:25:04,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:25:04,576 INFO L471 AbstractCegarLoop]: Abstraction has 2530 states and 3389 transitions. [2024-11-24 01:25:04,576 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) [2024-11-24 01:25:04,576 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 3389 transitions. [2024-11-24 01:25:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-24 01:25:04,581 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:25:04,581 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] [2024-11-24 01:25:04,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-24 01:25:04,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-24 01:25:04,782 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:25:04,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:25:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1368744116, now seen corresponding path program 1 times [2024-11-24 01:25:04,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:25:04,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608667897] [2024-11-24 01:25:04,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:04,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:25:05,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:10,069 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-24 01:25:10,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:25:10,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608667897] [2024-11-24 01:25:10,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608667897] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:25:10,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930814212] [2024-11-24 01:25:10,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:25:10,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:25:10,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:25:10,072 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:25:10,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-24 01:25:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:25:14,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 4326 conjuncts, 67 conjuncts are in the unsatisfiable core [2024-11-24 01:25:14,434 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:25:15,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,198 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,204 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:25:15,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,212 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:25:15,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,218 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-24 01:25:15,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:15,445 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 154 [2024-11-24 01:25:16,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:25:16,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 640 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 302 treesize of output 154 [2024-11-24 01:28:00,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 136 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 0 case distinctions, treesize of input 152 treesize of output 52 [2024-11-24 01:28:00,661 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-24 01:28:00,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 17 select indices, 17 select index equivalence classes, 0 disjoint index pairs (out of 136 index pairs), introduced 17 new quantified variables, introduced 136 case distinctions, treesize of input 152 treesize of output 52 [2024-11-24 01:28:00,821 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 667 trivial. 0 not checked. [2024-11-24 01:28:00,822 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:28:04,886 INFO L134 CoverageAnalysis]: Checked inductivity of 688 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 676 trivial. 0 not checked. [2024-11-24 01:28:04,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930814212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:28:04,886 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:28:04,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-24 01:28:04,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781276690] [2024-11-24 01:28:04,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:28:04,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 01:28:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:28:04,890 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 01:28:04,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=263, Unknown=1, NotChecked=0, Total=306 [2024-11-24 01:28:04,891 INFO L87 Difference]: Start difference. First operand 2530 states and 3389 transitions. Second operand has 18 states, 18 states have (on average 23.944444444444443) internal successors, (431), 15 states have internal predecessors, (431), 9 states have call successors, (117), 7 states have call predecessors, (117), 4 states have return successors, (113), 9 states have call predecessors, (113), 9 states have call successors, (113) [2024-11-24 01:28:08,931 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 [] [2024-11-24 01:28:12,938 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:16,975 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:21,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:25,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:29,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:33,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:37,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:28:41,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:29:10,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:10,846 INFO L93 Difference]: Finished difference Result 5443 states and 7367 transitions. [2024-11-24 01:29:10,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-24 01:29:10,847 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 23.944444444444443) internal successors, (431), 15 states have internal predecessors, (431), 9 states have call successors, (117), 7 states have call predecessors, (117), 4 states have return successors, (113), 9 states have call predecessors, (113), 9 states have call successors, (113) Word has length 424 [2024-11-24 01:29:10,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:10,862 INFO L225 Difference]: With dead ends: 5443 [2024-11-24 01:29:10,862 INFO L226 Difference]: Without dead ends: 2957 [2024-11-24 01:29:10,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 837 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=179, Invalid=576, Unknown=1, NotChecked=0, Total=756 [2024-11-24 01:29:10,870 INFO L435 NwaCegarLoop]: 652 mSDtfsCounter, 867 mSDsluCounter, 4233 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 382 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 44.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 867 SdHoareTripleChecker+Valid, 4885 SdHoareTripleChecker+Invalid, 2146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 382 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 45.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:10,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [867 Valid, 4885 Invalid, 2146 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [382 Valid, 1755 Invalid, 9 Unknown, 0 Unchecked, 45.7s Time] [2024-11-24 01:29:10,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2957 states. [2024-11-24 01:29:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2957 to 2699. [2024-11-24 01:29:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2699 states, 2008 states have (on average 1.2375498007968126) internal successors, (2485), 2033 states have internal predecessors, (2485), 496 states have call successors, (496), 164 states have call predecessors, (496), 194 states have return successors, (645), 525 states have call predecessors, (645), 496 states have call successors, (645) [2024-11-24 01:29:11,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2699 states to 2699 states and 3626 transitions. [2024-11-24 01:29:11,797 INFO L78 Accepts]: Start accepts. Automaton has 2699 states and 3626 transitions. Word has length 424 [2024-11-24 01:29:11,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:11,798 INFO L471 AbstractCegarLoop]: Abstraction has 2699 states and 3626 transitions. [2024-11-24 01:29:11,798 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 23.944444444444443) internal successors, (431), 15 states have internal predecessors, (431), 9 states have call successors, (117), 7 states have call predecessors, (117), 4 states have return successors, (113), 9 states have call predecessors, (113), 9 states have call successors, (113) [2024-11-24 01:29:11,798 INFO L276 IsEmpty]: Start isEmpty. Operand 2699 states and 3626 transitions. [2024-11-24 01:29:11,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2024-11-24 01:29:11,800 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:11,801 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:29:11,832 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-24 01:29:12,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-24 01:29:12,001 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:12,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:12,002 INFO L85 PathProgramCache]: Analyzing trace with hash -94306524, now seen corresponding path program 1 times [2024-11-24 01:29:12,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:12,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292427671] [2024-11-24 01:29:12,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:12,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:13,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-24 01:29:14,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:14,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292427671] [2024-11-24 01:29:14,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292427671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:14,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192043159] [2024-11-24 01:29:14,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:14,349 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:14,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:14,351 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:14,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-24 01:29:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:20,667 INFO L256 TraceCheckSpWp]: Trace formula consists of 4353 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-24 01:29:20,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 699 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-24 01:29:21,145 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:29:21,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192043159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:21,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:29:21,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2024-11-24 01:29:21,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892134641] [2024-11-24 01:29:21,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:21,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-24 01:29:21,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:21,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-24 01:29:21,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:29:21,147 INFO L87 Difference]: Start difference. First operand 2699 states and 3626 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:29:21,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:21,994 INFO L93 Difference]: Finished difference Result 5370 states and 7218 transitions. [2024-11-24 01:29:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 01:29:21,995 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) Word has length 423 [2024-11-24 01:29:21,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:22,009 INFO L225 Difference]: With dead ends: 5370 [2024-11-24 01:29:22,010 INFO L226 Difference]: Without dead ends: 2715 [2024-11-24 01:29:22,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-24 01:29:22,018 INFO L435 NwaCegarLoop]: 620 mSDtfsCounter, 0 mSDsluCounter, 3089 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3709 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:22,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3709 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:22,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2024-11-24 01:29:23,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2707. [2024-11-24 01:29:23,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2707 states, 2016 states have (on average 1.2366071428571428) internal successors, (2493), 2037 states have internal predecessors, (2493), 496 states have call successors, (496), 164 states have call predecessors, (496), 194 states have return successors, (645), 529 states have call predecessors, (645), 496 states have call successors, (645) [2024-11-24 01:29:23,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3634 transitions. [2024-11-24 01:29:23,145 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3634 transitions. Word has length 423 [2024-11-24 01:29:23,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:23,145 INFO L471 AbstractCegarLoop]: Abstraction has 2707 states and 3634 transitions. [2024-11-24 01:29:23,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (43), 2 states have call predecessors, (43), 4 states have return successors, (42), 4 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-24 01:29:23,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3634 transitions. [2024-11-24 01:29:23,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 423 [2024-11-24 01:29:23,148 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:23,148 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] [2024-11-24 01:29:23,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-24 01:29:23,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-24 01:29:23,349 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:23,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:23,349 INFO L85 PathProgramCache]: Analyzing trace with hash -681758309, now seen corresponding path program 1 times [2024-11-24 01:29:23,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:23,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061528026] [2024-11-24 01:29:23,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:23,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:24,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:25,337 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-11-24 01:29:25,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061528026] [2024-11-24 01:29:25,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061528026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:25,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [652473199] [2024-11-24 01:29:25,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:25,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:25,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:25,343 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:25,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-24 01:29:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:33,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 4059 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-24 01:29:33,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:33,405 INFO L134 CoverageAnalysis]: Checked inductivity of 783 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 607 trivial. 0 not checked. [2024-11-24 01:29:33,405 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 01:29:33,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [652473199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:29:33,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 01:29:33,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-24 01:29:33,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162779254] [2024-11-24 01:29:33,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:29:33,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:29:33,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:33,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:29:33,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:29:33,407 INFO L87 Difference]: Start difference. First operand 2707 states and 3634 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) [2024-11-24 01:29:34,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:34,263 INFO L93 Difference]: Finished difference Result 5382 states and 7229 transitions. [2024-11-24 01:29:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:29:34,264 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 [2024-11-24 01:29:34,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:34,284 INFO L225 Difference]: With dead ends: 5382 [2024-11-24 01:29:34,285 INFO L226 Difference]: Without dead ends: 2708 [2024-11-24 01:29:34,292 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 [2024-11-24 01:29:34,293 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:34,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1848 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:29:34,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2024-11-24 01:29:35,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2708. [2024-11-24 01:29:35,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2708 states, 2017 states have (on average 1.2364898363906793) internal successors, (2494), 2038 states have internal predecessors, (2494), 496 states have call successors, (496), 164 states have call predecessors, (496), 194 states have return successors, (645), 529 states have call predecessors, (645), 496 states have call successors, (645) [2024-11-24 01:29:35,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2708 states to 2708 states and 3635 transitions. [2024-11-24 01:29:35,593 INFO L78 Accepts]: Start accepts. Automaton has 2708 states and 3635 transitions. Word has length 422 [2024-11-24 01:29:35,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:35,594 INFO L471 AbstractCegarLoop]: Abstraction has 2708 states and 3635 transitions. [2024-11-24 01:29:35,594 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) [2024-11-24 01:29:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2708 states and 3635 transitions. [2024-11-24 01:29:35,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-24 01:29:35,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:35,599 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] [2024-11-24 01:29:35,669 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-24 01:29:35,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-24 01:29:35,800 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:35,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:35,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1982487327, now seen corresponding path program 1 times [2024-11-24 01:29:35,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:35,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682889460] [2024-11-24 01:29:35,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:35,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:37,914 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-24 01:29:37,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:37,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682889460] [2024-11-24 01:29:37,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682889460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:37,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [57427191] [2024-11-24 01:29:37,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:37,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:37,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:37,920 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:37,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-24 01:29:44,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:44,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 4089 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-24 01:29:44,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:29:44,747 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 179 proven. 1 refuted. 0 times theorem prover too weak. 608 trivial. 0 not checked. [2024-11-24 01:29:44,747 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:29:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 788 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 770 trivial. 0 not checked. [2024-11-24 01:29:46,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [57427191] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:29:46,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:29:46,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-24 01:29:46,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463393615] [2024-11-24 01:29:46,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:29:46,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 01:29:46,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:29:46,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 01:29:46,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-24 01:29:46,719 INFO L87 Difference]: Start difference. First operand 2708 states and 3635 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) [2024-11-24 01:29:47,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:29:47,593 INFO L93 Difference]: Finished difference Result 5389 states and 7239 transitions. [2024-11-24 01:29:47,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:29:47,593 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 [2024-11-24 01:29:47,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:29:47,605 INFO L225 Difference]: With dead ends: 5389 [2024-11-24 01:29:47,605 INFO L226 Difference]: Without dead ends: 2711 [2024-11-24 01:29:47,611 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 852 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-24 01:29:47,612 INFO L435 NwaCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 3074 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:29:47,612 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3692 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:29:47,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2711 states. [2024-11-24 01:29:48,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2711 to 2711. [2024-11-24 01:29:48,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2020 states have (on average 1.2361386138613861) internal successors, (2497), 2041 states have internal predecessors, (2497), 496 states have call successors, (496), 164 states have call predecessors, (496), 194 states have return successors, (645), 529 states have call predecessors, (645), 496 states have call successors, (645) [2024-11-24 01:29:48,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3638 transitions. [2024-11-24 01:29:48,450 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3638 transitions. Word has length 424 [2024-11-24 01:29:48,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:29:48,450 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3638 transitions. [2024-11-24 01:29:48,450 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) [2024-11-24 01:29:48,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3638 transitions. [2024-11-24 01:29:48,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-24 01:29:48,452 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:29:48,452 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] [2024-11-24 01:29:48,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-24 01:29:48,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-24 01:29:48,653 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:29:48,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:29:48,653 INFO L85 PathProgramCache]: Analyzing trace with hash -1820542755, now seen corresponding path program 1 times [2024-11-24 01:29:48,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:29:48,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782738227] [2024-11-24 01:29:48,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:48,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:29:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:29:55,851 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-24 01:29:55,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:29:55,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782738227] [2024-11-24 01:29:55,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782738227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:29:55,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061893687] [2024-11-24 01:29:55,851 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:29:55,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:29:55,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:29:55,854 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:29:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-24 01:30:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:30:08,456 INFO L256 TraceCheckSpWp]: Trace formula consists of 4206 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-24 01:30:08,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 01:30:08,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:30:08,511 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 [2024-11-24 01:30:08,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-24 01:30:08,535 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 [2024-11-24 01:30:22,147 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 20 proven. 11 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2024-11-24 01:30:22,147 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 01:30:25,750 INFO L134 CoverageAnalysis]: Checked inductivity of 838 backedges. 14 proven. 11 refuted. 0 times theorem prover too weak. 813 trivial. 0 not checked. [2024-11-24 01:30:25,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061893687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 01:30:25,750 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 01:30:25,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2024-11-24 01:30:25,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291201414] [2024-11-24 01:30:25,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 01:30:25,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-24 01:30:25,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:30:25,753 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-24 01:30:25,753 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-24 01:30:25,753 INFO L87 Difference]: Start difference. First operand 2711 states and 3638 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) [2024-11-24 01:30:29,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:33,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:37,860 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:41,910 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:45,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:49,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:53,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:30:58,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:02,041 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:06,072 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:10,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:14,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:23,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:23,812 INFO L93 Difference]: Finished difference Result 5603 states and 7580 transitions. [2024-11-24 01:31:23,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-24 01:31:23,813 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 [2024-11-24 01:31:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:23,826 INFO L225 Difference]: With dead ends: 5603 [2024-11-24 01:31:23,826 INFO L226 Difference]: Without dead ends: 2940 [2024-11-24 01:31:23,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 847 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=143, Invalid=559, Unknown=0, NotChecked=0, Total=702 [2024-11-24 01:31:23,834 INFO L435 NwaCegarLoop]: 631 mSDtfsCounter, 960 mSDsluCounter, 3909 mSDsCounter, 0 mSdLazyCounter, 1899 mSolverCounterSat, 414 mSolverCounterUnsat, 12 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 55.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 4540 SdHoareTripleChecker+Invalid, 2325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1899 IncrementalHoareTripleChecker+Invalid, 12 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 56.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:23,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [960 Valid, 4540 Invalid, 2325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1899 Invalid, 12 Unknown, 0 Unchecked, 56.3s Time] [2024-11-24 01:31:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2940 states. [2024-11-24 01:31:24,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2940 to 2750. [2024-11-24 01:31:24,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2750 states, 2057 states have (on average 1.2343218279047157) internal successors, (2539), 2073 states have internal predecessors, (2539), 498 states have call successors, (498), 164 states have call predecessors, (498), 194 states have return successors, (649), 536 states have call predecessors, (649), 498 states have call successors, (649) [2024-11-24 01:31:24,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2750 states to 2750 states and 3686 transitions. [2024-11-24 01:31:24,736 INFO L78 Accepts]: Start accepts. Automaton has 2750 states and 3686 transitions. Word has length 429 [2024-11-24 01:31:24,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:24,737 INFO L471 AbstractCegarLoop]: Abstraction has 2750 states and 3686 transitions. [2024-11-24 01:31:24,737 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) [2024-11-24 01:31:24,737 INFO L276 IsEmpty]: Start isEmpty. Operand 2750 states and 3686 transitions. [2024-11-24 01:31:24,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 428 [2024-11-24 01:31:24,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:24,740 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:24,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-24 01:31:24,940 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-24 01:31:24,940 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:24,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:24,941 INFO L85 PathProgramCache]: Analyzing trace with hash -54414571, now seen corresponding path program 1 times [2024-11-24 01:31:24,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:24,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317998440] [2024-11-24 01:31:24,941 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:31:24,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:25,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:31:27,590 INFO L134 CoverageAnalysis]: Checked inductivity of 825 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2024-11-24 01:31:27,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:27,590 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317998440] [2024-11-24 01:31:27,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317998440] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:31:27,591 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:31:27,591 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-24 01:31:27,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093531930] [2024-11-24 01:31:27,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:31:27,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-24 01:31:27,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:31:27,592 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-24 01:31:27,592 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:31:27,592 INFO L87 Difference]: Start difference. First operand 2750 states and 3686 transitions. Second operand has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2024-11-24 01:31:31,617 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:35,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-24 01:31:38,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:31:38,684 INFO L93 Difference]: Finished difference Result 5551 states and 7475 transitions. [2024-11-24 01:31:38,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-24 01:31:38,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) Word has length 427 [2024-11-24 01:31:38,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:31:38,697 INFO L225 Difference]: With dead ends: 5551 [2024-11-24 01:31:38,697 INFO L226 Difference]: Without dead ends: 2849 [2024-11-24 01:31:38,706 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 [2024-11-24 01:31:38,707 INFO L435 NwaCegarLoop]: 609 mSDtfsCounter, 617 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s 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, 10.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:31:38,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [619 Valid, 2031 Invalid, 464 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 446 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2024-11-24 01:31:38,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2849 states. [2024-11-24 01:31:39,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2849 to 2768. [2024-11-24 01:31:39,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2768 states, 2075 states have (on average 1.232289156626506) internal successors, (2557), 2091 states have internal predecessors, (2557), 498 states have call successors, (498), 164 states have call predecessors, (498), 194 states have return successors, (649), 536 states have call predecessors, (649), 498 states have call successors, (649) [2024-11-24 01:31:39,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2768 states to 2768 states and 3704 transitions. [2024-11-24 01:31:39,399 INFO L78 Accepts]: Start accepts. Automaton has 2768 states and 3704 transitions. Word has length 427 [2024-11-24 01:31:39,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:31:39,400 INFO L471 AbstractCegarLoop]: Abstraction has 2768 states and 3704 transitions. [2024-11-24 01:31:39,400 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.833333333333332) internal successors, (167), 5 states have internal predecessors, (167), 4 states have call successors, (46), 3 states have call predecessors, (46), 1 states have return successors, (44), 4 states have call predecessors, (44), 4 states have call successors, (44) [2024-11-24 01:31:39,400 INFO L276 IsEmpty]: Start isEmpty. Operand 2768 states and 3704 transitions. [2024-11-24 01:31:39,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2024-11-24 01:31:39,402 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:31:39,403 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:31:39,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-24 01:31:39,403 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_device_create_fileErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:31:39,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:31:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash -604971493, now seen corresponding path program 2 times [2024-11-24 01:31:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:31:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903250775] [2024-11-24 01:31:39,404 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:31:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:31:41,772 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 01:31:41,772 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 01:31:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2024-11-24 01:31:46,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:31:46,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903250775] [2024-11-24 01:31:46,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [903250775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 01:31:46,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901783791] [2024-11-24 01:31:46,206 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 01:31:46,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 01:31:46,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:31:46,208 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 01:31:46,210 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1308486-3459-4577-9d45-4ea3d0ef9cf3/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process