./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.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_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/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_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/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_a82c3bb1-788b-4c48-8abf-05c54a73794f/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 86380eb8807c8834472c3c5bc5f358e156df083f7e4b141cf7faa18b94c9fafb --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:34:47,323 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:34:47,418 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-23 22:34:47,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:34:47,430 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:34:47,476 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:34:47,477 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:34:47,478 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:34:47,478 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:34:47,479 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:34:47,480 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:34:47,480 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:34:47,480 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:34:47,481 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:34:47,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:34:47,481 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:34:47,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:34:47,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:34:47,482 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:34:47,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:34:47,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:34:47,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:34:47,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:34:47,483 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:34:47,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:34:47,483 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:34:47,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:47,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:47,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:47,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:47,484 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:34:47,484 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:34:47,484 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:34:47,485 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:34:47,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:47,486 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:34:47,486 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:34:47,486 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:34:47,486 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:34:47,486 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:34:47,486 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:34:47,487 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:34:47,487 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:34:47,487 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:34:47,487 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:34:47,487 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_a82c3bb1-788b-4c48-8abf-05c54a73794f/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 -> 86380eb8807c8834472c3c5bc5f358e156df083f7e4b141cf7faa18b94c9fafb [2024-11-23 22:34:47,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:34:47,850 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:34:47,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:34:47,854 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:34:47,855 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:34:47,859 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i [2024-11-23 22:34:53,065 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/data/bf8e15ecb/f4b0ec2264904c9dbf3952e30101bc67/FLAG6d2e707ae [2024-11-23 22:34:53,679 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:34:53,680 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i [2024-11-23 22:34:53,724 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/data/bf8e15ecb/f4b0ec2264904c9dbf3952e30101bc67/FLAG6d2e707ae [2024-11-23 22:34:53,747 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/data/bf8e15ecb/f4b0ec2264904c9dbf3952e30101bc67 [2024-11-23 22:34:53,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:34:53,751 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:34:53,753 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:53,753 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:34:53,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:34:53,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,761 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28b3f006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:53, skipping insertion in model container [2024-11-23 22:34:53,762 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:53" (1/1) ... [2024-11-23 22:34:53,863 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:34:54,365 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3070] [2024-11-23 22:34:54,366 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3071-3072] [2024-11-23 22:34:54,511 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_a82c3bb1-788b-4c48-8abf-05c54a73794f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i[91143,91156] [2024-11-23 22:34:54,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:55,025 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:34:55,113 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3070] [2024-11-23 22:34:55,114 WARN L1346 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3071-3072] [2024-11-23 22:34:55,121 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3152] [2024-11-23 22:34:55,123 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3160-3161] [2024-11-23 22:34:55,136 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_a82c3bb1-788b-4c48-8abf-05c54a73794f/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i[91143,91156] [2024-11-23 22:34:55,331 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:34:55,403 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:34:55,403 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55 WrapperNode [2024-11-23 22:34:55,404 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:34:55,405 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:55,405 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:34:55,405 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:34:55,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,471 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,605 INFO L138 Inliner]: procedures = 113, calls = 1214, calls flagged for inlining = 42, calls inlined = 40, statements flattened = 1963 [2024-11-23 22:34:55,605 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:34:55,606 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:34:55,606 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:34:55,607 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:34:55,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,663 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,792 INFO L175 MemorySlicer]: Split 956 memory accesses to 21 slices as follows [2, 5, 274, 32, 512, 6, 24, 1, 2, 30, 3, 14, 5, 6, 2, 6, 6, 13, 5, 5, 3]. 54 percent of accesses are in the largest equivalence class. The 780 initializations are split as follows [2, 5, 180, 24, 512, 4, 0, 1, 0, 0, 0, 14, 5, 0, 0, 6, 6, 13, 0, 5, 3]. The 106 writes are split as follows [0, 0, 40, 0, 0, 0, 24, 0, 1, 30, 2, 0, 0, 2, 2, 0, 0, 0, 5, 0, 0]. [2024-11-23 22:34:55,792 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,793 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,890 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,898 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,910 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,924 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,937 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,965 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:34:55,966 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:34:55,966 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:34:55,966 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:34:55,967 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (1/1) ... [2024-11-23 22:34:55,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:34:55,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:34:56,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:34:56,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:34:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure pi_release [2024-11-23 22:34:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_release [2024-11-23 22:34:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure write_reg [2024-11-23 22:34:56,104 INFO L138 BoogieDeclarations]: Found implementation of procedure write_reg [2024-11-23 22:34:56,104 INFO L130 BoogieDeclarations]: Found specification of procedure pi_disconnect [2024-11-23 22:34:56,105 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_disconnect [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure status_reg [2024-11-23 22:34:56,106 INFO L138 BoogieDeclarations]: Found implementation of procedure status_reg [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-23 22:34:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-23 22:34:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-23 22:34:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-23 22:34:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-23 22:34:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-23 22:34:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-23 22:34:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-23 22:34:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-23 22:34:56,110 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-23 22:34:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-11-23 22:34:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-23 22:34:56,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-23 22:34:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-23 22:34:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-23 22:34:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure read_reg [2024-11-23 22:34:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure read_reg [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-23 22:34:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure pg_sleep [2024-11-23 22:34:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_sleep [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure pg_completion [2024-11-23 22:34:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_completion [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-23 22:34:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-23 22:34:56,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-23 22:34:56,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-23 22:34:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-23 22:34:56,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-23 22:34:56,121 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2024-11-23 22:34:56,121 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2024-11-23 22:34:56,121 INFO L130 BoogieDeclarations]: Found specification of procedure pg_wait [2024-11-23 22:34:56,121 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_wait [2024-11-23 22:34:56,121 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-23 22:34:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-23 22:34:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-23 22:34:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-23 22:34:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-23 22:34:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-23 22:34:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:34:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:34:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-23 22:34:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2024-11-23 22:34:56,124 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-23 22:34:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-23 22:34:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure DRIVE [2024-11-23 22:34:56,126 INFO L138 BoogieDeclarations]: Found implementation of procedure DRIVE [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure pg_write [2024-11-23 22:34:56,127 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_write [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2024-11-23 22:34:56,127 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-23 22:34:56,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_20 [2024-11-23 22:34:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_20 [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure pg_reset [2024-11-23 22:34:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_reset [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure pg_identify [2024-11-23 22:34:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_identify [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure pi_write_block [2024-11-23 22:34:56,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_write_block [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-23 22:34:56,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-23 22:34:56,129 INFO L130 BoogieDeclarations]: Found specification of procedure pi_init [2024-11-23 22:34:56,129 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_init [2024-11-23 22:34:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure pi_read_regr [2024-11-23 22:34:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_read_regr [2024-11-23 22:34:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-23 22:34:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-23 22:34:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-23 22:34:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-23 22:34:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure pg_probe [2024-11-23 22:34:56,130 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_probe [2024-11-23 22:34:56,130 INFO L130 BoogieDeclarations]: Found specification of procedure pi_connect [2024-11-23 22:34:56,133 INFO L138 BoogieDeclarations]: Found implementation of procedure pi_connect [2024-11-23 22:34:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure pg_command [2024-11-23 22:34:56,134 INFO L138 BoogieDeclarations]: Found implementation of procedure pg_command [2024-11-23 22:34:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:34:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-23 22:34:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-23 22:34:56,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-23 22:34:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-23 22:34:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-23 22:34:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-23 22:34:56,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-23 22:34:56,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-23 22:34:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-23 22:34:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2024-11-23 22:34:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2024-11-23 22:34:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2024-11-23 22:34:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2024-11-23 22:34:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:34:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:34:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure xs [2024-11-23 22:34:56,137 INFO L138 BoogieDeclarations]: Found implementation of procedure xs [2024-11-23 22:34:56,137 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-23 22:34:56,138 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-23 22:34:56,769 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:34:56,774 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:34:56,854 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-23 22:35:04,187 INFO L? ?]: Removed 572 outVars from TransFormulas that were not future-live. [2024-11-23 22:35:04,187 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:35:04,216 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:35:04,217 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-23 22:35:04,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:04 BoogieIcfgContainer [2024-11-23 22:35:04,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:35:04,220 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:35:04,220 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:35:04,230 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:35:04,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:53" (1/3) ... [2024-11-23 22:35:04,231 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f71a480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:04, skipping insertion in model container [2024-11-23 22:35:04,231 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:55" (2/3) ... [2024-11-23 22:35:04,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f71a480 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:35:04, skipping insertion in model container [2024-11-23 22:35:04,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:04" (3/3) ... [2024-11-23 22:35:04,233 INFO L128 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i [2024-11-23 22:35:04,252 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:35:04,255 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--block--paride--pg.ko-entry_point.cil.out.i that has 35 procedures, 551 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-23 22:35:04,340 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:35:04,355 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;@6cbff207, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:35:04,355 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:35:04,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 550 states, 402 states have (on average 1.355721393034826) internal successors, (545), 410 states have internal predecessors, (545), 113 states have call successors, (113), 34 states have call predecessors, (113), 33 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) [2024-11-23 22:35:04,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-23 22:35:04,397 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:04,398 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:04,401 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:04,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:04,406 INFO L85 PathProgramCache]: Analyzing trace with hash -177280700, now seen corresponding path program 1 times [2024-11-23 22:35:04,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:04,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209084201] [2024-11-23 22:35:04,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:04,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:06,426 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-23 22:35:06,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:06,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209084201] [2024-11-23 22:35:06,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209084201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:06,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:06,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:06,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490039401] [2024-11-23 22:35:06,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:06,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:06,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:06,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:06,459 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:06,462 INFO L87 Difference]: Start difference. First operand has 550 states, 402 states have (on average 1.355721393034826) internal successors, (545), 410 states have internal predecessors, (545), 113 states have call successors, (113), 34 states have call predecessors, (113), 33 states have return successors, (110), 110 states have call predecessors, (110), 110 states have call successors, (110) Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 22:35:06,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:06,797 INFO L93 Difference]: Finished difference Result 1431 states and 2027 transitions. [2024-11-23 22:35:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:06,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 101 [2024-11-23 22:35:06,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:06,826 INFO L225 Difference]: With dead ends: 1431 [2024-11-23 22:35:06,826 INFO L226 Difference]: Without dead ends: 834 [2024-11-23 22:35:06,836 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 [2024-11-23 22:35:06,839 INFO L435 NwaCegarLoop]: 926 mSDtfsCounter, 476 mSDsluCounter, 712 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:06,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 1638 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:06,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states. [2024-11-23 22:35:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 832. [2024-11-23 22:35:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 832 states, 600 states have (on average 1.325) internal successors, (795), 605 states have internal predecessors, (795), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-23 22:35:06,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1144 transitions. [2024-11-23 22:35:06,983 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1144 transitions. Word has length 101 [2024-11-23 22:35:06,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:06,983 INFO L471 AbstractCegarLoop]: Abstraction has 832 states and 1144 transitions. [2024-11-23 22:35:06,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (14), 2 states have call predecessors, (14), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-23 22:35:06,989 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1144 transitions. [2024-11-23 22:35:06,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-11-23 22:35:06,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:06,997 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 22:35:06,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 22:35:06,998 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:06,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:06,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1644619041, now seen corresponding path program 1 times [2024-11-23 22:35:06,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:06,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170042807] [2024-11-23 22:35:06,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:06,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:07,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:08,540 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:08,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:08,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170042807] [2024-11-23 22:35:08,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170042807] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:08,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:35:08,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 22:35:08,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640730288] [2024-11-23 22:35:08,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:08,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:08,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:08,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:08,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 22:35:08,547 INFO L87 Difference]: Start difference. First operand 832 states and 1144 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 22:35:08,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:08,658 INFO L93 Difference]: Finished difference Result 1646 states and 2273 transitions. [2024-11-23 22:35:08,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:08,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 148 [2024-11-23 22:35:08,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:08,665 INFO L225 Difference]: With dead ends: 1646 [2024-11-23 22:35:08,666 INFO L226 Difference]: Without dead ends: 846 [2024-11-23 22:35:08,669 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 [2024-11-23 22:35:08,670 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 7 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 1437 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:08,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 1437 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:08,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2024-11-23 22:35:08,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 834. [2024-11-23 22:35:08,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 834 states, 602 states have (on average 1.323920265780731) internal successors, (797), 607 states have internal predecessors, (797), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-23 22:35:08,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 834 states to 834 states and 1146 transitions. [2024-11-23 22:35:08,730 INFO L78 Accepts]: Start accepts. Automaton has 834 states and 1146 transitions. Word has length 148 [2024-11-23 22:35:08,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:08,730 INFO L471 AbstractCegarLoop]: Abstraction has 834 states and 1146 transitions. [2024-11-23 22:35:08,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-23 22:35:08,731 INFO L276 IsEmpty]: Start isEmpty. Operand 834 states and 1146 transitions. [2024-11-23 22:35:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-23 22:35:08,744 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:08,745 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 22:35:08,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:35:08,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:08,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:08,746 INFO L85 PathProgramCache]: Analyzing trace with hash -983554104, now seen corresponding path program 1 times [2024-11-23 22:35:08,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:08,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411696801] [2024-11-23 22:35:08,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:08,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:09,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:10,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:10,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411696801] [2024-11-23 22:35:10,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411696801] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:10,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082219450] [2024-11-23 22:35:10,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:10,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:10,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:10,186 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:10,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:35:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:12,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 3467 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:35:12,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:12,167 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-23 22:35:12,170 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:12,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082219450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:12,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:12,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:35:12,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184776369] [2024-11-23 22:35:12,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:12,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:12,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:12,175 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:12,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:12,176 INFO L87 Difference]: Start difference. First operand 834 states and 1146 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:35:12,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:12,267 INFO L93 Difference]: Finished difference Result 1637 states and 2257 transitions. [2024-11-23 22:35:12,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:12,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 158 [2024-11-23 22:35:12,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:12,280 INFO L225 Difference]: With dead ends: 1637 [2024-11-23 22:35:12,284 INFO L226 Difference]: Without dead ends: 835 [2024-11-23 22:35:12,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:12,290 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 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 [2024-11-23 22:35:12,290 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:12,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-23 22:35:12,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 835. [2024-11-23 22:35:12,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 835 states, 603 states have (on average 1.3233830845771144) internal successors, (798), 608 states have internal predecessors, (798), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-23 22:35:12,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 835 states to 835 states and 1147 transitions. [2024-11-23 22:35:12,358 INFO L78 Accepts]: Start accepts. Automaton has 835 states and 1147 transitions. Word has length 158 [2024-11-23 22:35:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:12,359 INFO L471 AbstractCegarLoop]: Abstraction has 835 states and 1147 transitions. [2024-11-23 22:35:12,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:35:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 835 states and 1147 transitions. [2024-11-23 22:35:12,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-23 22:35:12,367 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:12,367 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 22:35:12,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 22:35:12,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:12,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:12,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash -1400950710, now seen corresponding path program 1 times [2024-11-23 22:35:12,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:12,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653103279] [2024-11-23 22:35:12,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:12,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:14,180 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:14,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:14,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653103279] [2024-11-23 22:35:14,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653103279] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:14,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1039310260] [2024-11-23 22:35:14,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:14,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:14,181 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:14,183 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:14,189 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 22:35:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:16,272 INFO L256 TraceCheckSpWp]: Trace formula consists of 3470 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:35:16,285 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-11-23 22:35:16,314 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:16,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1039310260] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:16,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:16,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:35:16,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499474999] [2024-11-23 22:35:16,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:16,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:16,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:16,316 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:16,316 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:16,316 INFO L87 Difference]: Start difference. First operand 835 states and 1147 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:35:16,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:16,371 INFO L93 Difference]: Finished difference Result 839 states and 1151 transitions. [2024-11-23 22:35:16,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:16,372 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 158 [2024-11-23 22:35:16,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:16,383 INFO L225 Difference]: With dead ends: 839 [2024-11-23 22:35:16,383 INFO L226 Difference]: Without dead ends: 836 [2024-11-23 22:35:16,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 158 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:16,386 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 0 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1438 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 [2024-11-23 22:35:16,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1438 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:16,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2024-11-23 22:35:16,433 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 836. [2024-11-23 22:35:16,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 604 states have (on average 1.3228476821192052) internal successors, (799), 609 states have internal predecessors, (799), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-23 22:35:16,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1148 transitions. [2024-11-23 22:35:16,444 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1148 transitions. Word has length 158 [2024-11-23 22:35:16,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:16,447 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1148 transitions. [2024-11-23 22:35:16,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 2 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-11-23 22:35:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1148 transitions. [2024-11-23 22:35:16,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-23 22:35:16,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:16,453 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 22:35:16,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:16,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-23 22:35:16,658 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:16,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:16,658 INFO L85 PathProgramCache]: Analyzing trace with hash -1961767970, now seen corresponding path program 1 times [2024-11-23 22:35:16,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:16,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956391482] [2024-11-23 22:35:16,658 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:16,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:17,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:17,946 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:17,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:17,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956391482] [2024-11-23 22:35:17,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956391482] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:17,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742339762] [2024-11-23 22:35:17,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:17,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:17,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:17,949 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:17,953 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 22:35:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:19,857 INFO L256 TraceCheckSpWp]: Trace formula consists of 3475 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:35:19,863 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:19,893 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-23 22:35:19,893 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742339762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:19,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:19,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:35:19,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471026110] [2024-11-23 22:35:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:19,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:19,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:19,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:19,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:19,896 INFO L87 Difference]: Start difference. First operand 836 states and 1148 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:35:19,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:19,965 INFO L93 Difference]: Finished difference Result 1664 states and 2297 transitions. [2024-11-23 22:35:19,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:19,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 160 [2024-11-23 22:35:19,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:19,973 INFO L225 Difference]: With dead ends: 1664 [2024-11-23 22:35:19,973 INFO L226 Difference]: Without dead ends: 860 [2024-11-23 22:35:19,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:19,977 INFO L435 NwaCegarLoop]: 725 mSDtfsCounter, 11 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:19,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 1442 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:19,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states. [2024-11-23 22:35:20,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 838. [2024-11-23 22:35:20,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 606 states have (on average 1.3217821782178218) internal successors, (801), 611 states have internal predecessors, (801), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-23 22:35:20,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1150 transitions. [2024-11-23 22:35:20,024 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1150 transitions. Word has length 160 [2024-11-23 22:35:20,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:20,025 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1150 transitions. [2024-11-23 22:35:20,025 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-23 22:35:20,025 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1150 transitions. [2024-11-23 22:35:20,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-11-23 22:35:20,030 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:20,031 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 22:35:20,049 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 22:35:20,231 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:20,232 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:20,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:20,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1797826935, now seen corresponding path program 1 times [2024-11-23 22:35:20,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:20,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731145460] [2024-11-23 22:35:20,233 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:20,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:20,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:21,344 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-23 22:35:21,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:21,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731145460] [2024-11-23 22:35:21,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731145460] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:21,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102102035] [2024-11-23 22:35:21,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:21,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:21,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:21,347 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:21,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 22:35:23,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:23,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 3546 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-23 22:35:23,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:23,640 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 22:35:23,640 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:23,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102102035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:23,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:23,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:35:23,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169203731] [2024-11-23 22:35:23,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:23,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:23,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:23,645 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:23,645 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:23,645 INFO L87 Difference]: Start difference. First operand 838 states and 1150 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:35:23,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:23,762 INFO L93 Difference]: Finished difference Result 1661 states and 2288 transitions. [2024-11-23 22:35:23,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:23,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 165 [2024-11-23 22:35:23,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:23,770 INFO L225 Difference]: With dead ends: 1661 [2024-11-23 22:35:23,770 INFO L226 Difference]: Without dead ends: 855 [2024-11-23 22:35:23,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:23,775 INFO L435 NwaCegarLoop]: 715 mSDtfsCounter, 17 mSDsluCounter, 706 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:23,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1421 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-23 22:35:23,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-23 22:35:23,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 840. [2024-11-23 22:35:23,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 840 states, 608 states have (on average 1.3207236842105263) internal successors, (803), 613 states have internal predecessors, (803), 175 states have call successors, (175), 57 states have call predecessors, (175), 56 states have return successors, (174), 174 states have call predecessors, (174), 174 states have call successors, (174) [2024-11-23 22:35:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 840 states to 840 states and 1152 transitions. [2024-11-23 22:35:23,874 INFO L78 Accepts]: Start accepts. Automaton has 840 states and 1152 transitions. Word has length 165 [2024-11-23 22:35:23,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:23,875 INFO L471 AbstractCegarLoop]: Abstraction has 840 states and 1152 transitions. [2024-11-23 22:35:23,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 2 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-11-23 22:35:23,875 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states and 1152 transitions. [2024-11-23 22:35:23,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-23 22:35:23,881 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:23,881 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-11-23 22:35:23,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:24,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:24,082 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:24,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:24,083 INFO L85 PathProgramCache]: Analyzing trace with hash -1564805278, now seen corresponding path program 1 times [2024-11-23 22:35:24,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:24,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718118161] [2024-11-23 22:35:24,083 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:24,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-23 22:35:24,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718118161] [2024-11-23 22:35:24,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718118161] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:24,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615061310] [2024-11-23 22:35:24,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:24,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:24,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:24,996 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:25,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 22:35:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:26,808 INFO L256 TraceCheckSpWp]: Trace formula consists of 3557 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-23 22:35:26,813 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:26,868 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-23 22:35:26,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:26,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615061310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:26,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:26,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-23 22:35:26,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687897716] [2024-11-23 22:35:26,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:26,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 22:35:26,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:26,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 22:35:26,872 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:26,872 INFO L87 Difference]: Start difference. First operand 840 states and 1152 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 22:35:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:26,942 INFO L93 Difference]: Finished difference Result 1674 states and 2309 transitions. [2024-11-23 22:35:26,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 22:35:26,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 169 [2024-11-23 22:35:26,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:26,949 INFO L225 Difference]: With dead ends: 1674 [2024-11-23 22:35:26,950 INFO L226 Difference]: Without dead ends: 866 [2024-11-23 22:35:26,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-23 22:35:26,954 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 17 mSDsluCounter, 705 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1425 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:26,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 1425 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:26,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2024-11-23 22:35:26,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2024-11-23 22:35:26,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 866 states, 628 states have (on average 1.3232484076433122) internal successors, (831), 633 states have internal predecessors, (831), 181 states have call successors, (181), 57 states have call predecessors, (181), 56 states have return successors, (180), 180 states have call predecessors, (180), 180 states have call successors, (180) [2024-11-23 22:35:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1192 transitions. [2024-11-23 22:35:26,998 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1192 transitions. Word has length 169 [2024-11-23 22:35:26,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:26,998 INFO L471 AbstractCegarLoop]: Abstraction has 866 states and 1192 transitions. [2024-11-23 22:35:26,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2024-11-23 22:35:26,999 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1192 transitions. [2024-11-23 22:35:27,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-23 22:35:27,004 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:35:27,004 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:27,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:35:27,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:27,205 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:35:27,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:35:27,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1881492816, now seen corresponding path program 1 times [2024-11-23 22:35:27,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:35:27,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574293658] [2024-11-23 22:35:27,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:27,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:35:27,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:28,112 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-23 22:35:28,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:35:28,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574293658] [2024-11-23 22:35:28,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1574293658] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:35:28,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614576089] [2024-11-23 22:35:28,115 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:35:28,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:28,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:35:28,117 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:35:28,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 22:35:29,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:35:29,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 3575 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-23 22:35:29,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:35:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-23 22:35:30,499 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:35:30,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614576089] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:35:30,499 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:35:30,499 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-23 22:35:30,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075146791] [2024-11-23 22:35:30,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:35:30,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 22:35:30,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:35:30,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 22:35:30,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-23 22:35:30,502 INFO L87 Difference]: Start difference. First operand 866 states and 1192 transitions. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-23 22:35:30,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:35:30,622 INFO L93 Difference]: Finished difference Result 1692 states and 2337 transitions. [2024-11-23 22:35:30,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 22:35:30,623 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) Word has length 174 [2024-11-23 22:35:30,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:35:30,627 INFO L225 Difference]: With dead ends: 1692 [2024-11-23 22:35:30,627 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 22:35:30,636 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:35:30,637 INFO L435 NwaCegarLoop]: 710 mSDtfsCounter, 567 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 567 SdHoareTripleChecker+Valid, 1419 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:35:30,637 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [567 Valid, 1419 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:35:30,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 22:35:30,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 22:35:30,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:35:30,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 22:35:30,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 174 [2024-11-23 22:35:30,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:35:30,641 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:35:30,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 1 states have call predecessors, (20), 1 states have call successors, (20) [2024-11-23 22:35:30,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 22:35:30,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 22:35:30,647 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:35:30,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 22:35:30,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:35:30,852 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:35:30,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 22:35:34,530 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:35:34,560 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:35:34 BoogieIcfgContainer [2024-11-23 22:35:34,560 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:35:34,561 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:35:34,561 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:35:34,562 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:35:34,563 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:35:04" (3/4) ... [2024-11-23 22:35:34,566 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 22:35:34,574 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_from_user [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_release [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_init [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure write_reg [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_sleep [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_read_regr [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure might_fault [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printk [2024-11-23 22:35:34,575 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_disconnect [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_probe [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure status_reg [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_completion [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure DRIVE [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure copy_to_user [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_wait [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_error [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_write [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_connect [2024-11-23 22:35:34,576 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_to_user [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_stop [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_command [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv__builtin_expect [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure clear_bit [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure read_reg [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_unregister_chrdev_20 [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_reset [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_malloc [2024-11-23 22:35:34,577 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ldv_zalloc [2024-11-23 22:35:34,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure _copy_from_user [2024-11-23 22:35:34,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure xs [2024-11-23 22:35:34,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pg_identify [2024-11-23 22:35:34,578 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure pi_write_block [2024-11-23 22:35:34,579 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure IS_ERR [2024-11-23 22:35:34,630 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 217 nodes and edges [2024-11-23 22:35:34,634 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 98 nodes and edges [2024-11-23 22:35:34,638 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-23 22:35:34,642 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-23 22:35:34,646 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 22:35:34,649 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-23 22:35:34,653 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 22:35:34,996 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 22:35:34,997 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 22:35:34,997 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:35:34,998 INFO L158 Benchmark]: Toolchain (without parser) took 41247.01ms. Allocated memory was 142.6MB in the beginning and 1.2GB in the end (delta: 1.0GB). Free memory was 99.9MB in the beginning and 727.5MB in the end (delta: -627.6MB). Peak memory consumption was 420.0MB. Max. memory is 16.1GB. [2024-11-23 22:35:34,999 INFO L158 Benchmark]: CDTParser took 0.53ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:35:34,999 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1651.06ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 80.7MB in the end (delta: 18.9MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. [2024-11-23 22:35:34,999 INFO L158 Benchmark]: Boogie Procedure Inliner took 200.47ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 67.3MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:35:35,000 INFO L158 Benchmark]: Boogie Preprocessor took 359.02ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 42.3MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:35:35,000 INFO L158 Benchmark]: RCFGBuilder took 8251.29ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 42.3MB in the beginning and 173.2MB in the end (delta: -130.9MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. [2024-11-23 22:35:35,001 INFO L158 Benchmark]: TraceAbstraction took 30340.36ms. Allocated memory was 427.8MB in the beginning and 1.2GB in the end (delta: 763.4MB). Free memory was 172.4MB in the beginning and 761.0MB in the end (delta: -588.5MB). Peak memory consumption was 175.4MB. Max. memory is 16.1GB. [2024-11-23 22:35:35,001 INFO L158 Benchmark]: Witness Printer took 436.53ms. Allocated memory is still 1.2GB. Free memory was 761.0MB in the beginning and 727.5MB in the end (delta: 33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 22:35:35,003 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53ms. Allocated memory is still 167.8MB. Free memory is still 104.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1651.06ms. Allocated memory is still 142.6MB. Free memory was 99.6MB in the beginning and 80.7MB in the end (delta: 18.9MB). Peak memory consumption was 83.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 200.47ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 67.3MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 359.02ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 42.3MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 8251.29ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 42.3MB in the beginning and 173.2MB in the end (delta: -130.9MB). Peak memory consumption was 163.5MB. Max. memory is 16.1GB. * TraceAbstraction took 30340.36ms. Allocated memory was 427.8MB in the beginning and 1.2GB in the end (delta: 763.4MB). Free memory was 172.4MB in the beginning and 761.0MB in the end (delta: -588.5MB). Peak memory consumption was 175.4MB. Max. memory is 16.1GB. * Witness Printer took 436.53ms. Allocated memory is still 1.2GB. Free memory was 761.0MB in the beginning and 727.5MB in the end (delta: 33.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 3152]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [3152] - GenericResultAtLocation [Line: 3160]: Unsoundness Warning Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [3160-3161] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 3271]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 551 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.5s, OverallIterations: 8, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1106 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1095 mSDsluCounter, 11658 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5698 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 5960 mSDtfsCounter, 91 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1009 GetRequests, 987 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=866occurred in iteration=7, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 51 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2217 NumberOfCodeBlocks, 2217 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 2203 ConstructedInterpolants, 0 QuantifiedInterpolants, 2655 SizeOfPredicates, 1 NumberOfNonLiveVariables, 21090 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 14 InterpolantComputations, 8 PerfectInterpolantSequences, 891/897 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3607]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3655]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 4162]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3634]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3806]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3655]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3506]: Location Invariant Derived location invariant: (ldv_spin == 0) - InvariantResult [Line: 3447]: Loop Invariant Derived loop invariant: (ldv_spin == 0) RESULT: Ultimate proved your program to be correct! [2024-11-23 22:35:35,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a82c3bb1-788b-4c48-8abf-05c54a73794f/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE