./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 37b391ae58c5e6c2e62d05a454cd149d807feea3462a4157cf615889ce62b744 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:23:45,820 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:23:45,943 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 05:23:45,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:23:45,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:23:45,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:23:45,993 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:23:45,994 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:23:45,995 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:23:45,995 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:23:45,997 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:23:45,997 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:23:45,997 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:23:45,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:23:45,998 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:23:45,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:23:45,999 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:23:45,999 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:23:46,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:23:46,001 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:23:46,001 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:23:46,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:23:46,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:23:46,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:23:46,001 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:23:46,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:23:46,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:23:46,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:23:46,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:23:46,003 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:23:46,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:23:46,004 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:23:46,004 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:23:46,004 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:23:46,004 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:23:46,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:23:46,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:23:46,005 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:23:46,005 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:23:46,005 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_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37b391ae58c5e6c2e62d05a454cd149d807feea3462a4157cf615889ce62b744 [2024-11-28 05:23:46,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:23:46,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:23:46,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:23:46,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:23:46,444 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:23:46,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-28 05:23:50,337 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/data/acdcc64cf/92ed8a4e500c482fa70c6666731202a8/FLAG57469901c [2024-11-28 05:23:51,015 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:23:51,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-28 05:23:51,061 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/data/acdcc64cf/92ed8a4e500c482fa70c6666731202a8/FLAG57469901c [2024-11-28 05:23:51,436 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/data/acdcc64cf/92ed8a4e500c482fa70c6666731202a8 [2024-11-28 05:23:51,439 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:23:51,441 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:23:51,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:23:51,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:23:51,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:23:51,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:23:51" (1/1) ... [2024-11-28 05:23:51,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55814b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:51, skipping insertion in model container [2024-11-28 05:23:51,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:23:51" (1/1) ... [2024-11-28 05:23:51,623 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:23:53,442 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_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2024-11-28 05:23:53,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:23:53,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:23:53,753 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("bt %2,%1\n\tsbb %0,%0": "=r" (oldbit): "m" (*((unsigned long *)addr)), "Ir" (nr)); [2769-2770] [2024-11-28 05:23:53,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [2796] [2024-11-28 05:23:53,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2799] [2024-11-28 05:23:53,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2802] [2024-11-28 05:23:53,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [2805] [2024-11-28 05:23:53,862 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3649] [2024-11-28 05:23:53,865 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)ep->ep_list.next) [3671] [2024-11-28 05:23:54,062 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_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/sv-benchmarks/c/ldv-validator-v0.8/linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i[158797,158810] [2024-11-28 05:23:54,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:23:54,224 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:23:54,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54 WrapperNode [2024-11-28 05:23:54,228 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:23:54,230 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:23:54,230 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:23:54,230 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:23:54,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:54,345 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:54,643 INFO L138 Inliner]: procedures = 189, calls = 2554, calls flagged for inlining = 78, calls inlined = 78, statements flattened = 4799 [2024-11-28 05:23:54,644 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:23:54,644 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:23:54,644 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:23:54,645 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:23:54,657 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:54,658 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:54,728 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,650 INFO L175 MemorySlicer]: Split 1878 memory accesses to 13 slices as follows [2, 5, 26, 19, 6, 12, 0, 13, 23, 25, 8, 2, 1737]. 92 percent of accesses are in the largest equivalence class. The 1387 initializations are split as follows [2, 2, 0, 8, 1, 12, 0, 8, 0, 22, 0, 0, 1332]. The 231 writes are split as follows [0, 0, 26, 1, 0, 0, 0, 0, 23, 0, 1, 0, 180]. [2024-11-28 05:23:55,650 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,651 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,827 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,838 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,858 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,890 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,910 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,973 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:23:55,975 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:23:55,975 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:23:55,975 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:23:55,978 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (1/1) ... [2024-11-28 05:23:55,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:23:56,007 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:23:56,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:23:56,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:23:56,073 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_free [2024-11-28 05:23:56,073 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_free [2024-11-28 05:23:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-28 05:23:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~TO~int [2024-11-28 05:23:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int_nonpositive [2024-11-28 05:23:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int_nonpositive [2024-11-28 05:23:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2024-11-28 05:23:56,074 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2024-11-28 05:23:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-28 05:23:56,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-11-28 05:23:56,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-11-28 05:23:56,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-11-28 05:23:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-11-28 05:23:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-11-28 05:23:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-28 05:23:56,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-28 05:23:56,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 05:23:56,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 05:23:56,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 05:23:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 05:23:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 05:23:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 05:23:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 05:23:56,082 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 05:23:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 05:23:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 05:23:56,083 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 05:23:56,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 05:23:56,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 05:23:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-28 05:23:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-28 05:23:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure get_gadget_data [2024-11-28 05:23:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure get_gadget_data [2024-11-28 05:23:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure printer_poll [2024-11-28 05:23:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_poll [2024-11-28 05:23:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-11-28 05:23:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-11-28 05:23:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-11-28 05:23:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-11-28 05:23:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-11-28 05:23:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-11-28 05:23:56,089 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-11-28 05:23:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-11-28 05:23:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-11-28 05:23:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-11-28 05:23:56,089 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-11-28 05:23:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_free_request [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_free_request [2024-11-28 05:23:56,090 INFO L130 BoogieDeclarations]: Found specification of procedure printer_reset_interface [2024-11-28 05:23:56,090 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_reset_interface [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2024-11-28 05:23:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-28 05:23:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure printer_soft_reset [2024-11-28 05:23:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_soft_reset [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_class [2024-11-28 05:23:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_class [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2024-11-28 05:23:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure set_printer_interface [2024-11-28 05:23:56,091 INFO L138 BoogieDeclarations]: Found implementation of procedure set_printer_interface [2024-11-28 05:23:56,091 INFO L130 BoogieDeclarations]: Found specification of procedure setup_rx_reqs [2024-11-28 05:23:56,092 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_rx_reqs [2024-11-28 05:23:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure class_destroy [2024-11-28 05:23:56,092 INFO L138 BoogieDeclarations]: Found implementation of procedure class_destroy [2024-11-28 05:23:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 05:23:56,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 05:23:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 05:23:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2024-11-28 05:23:56,097 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2024-11-28 05:23:56,097 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-28 05:23:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_queue [2024-11-28 05:23:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_queue [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure set_interface [2024-11-28 05:23:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure set_interface [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup_complete [2024-11-28 05:23:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup_complete [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-28 05:23:56,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-28 05:23:56,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-11-28 05:23:56,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-11-28 05:23:56,099 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-11-28 05:23:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure usb_gadget_vbus_draw [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_gadget_vbus_draw [2024-11-28 05:23:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-28 05:23:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:23:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure printer_write [2024-11-28 05:23:56,100 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_write [2024-11-28 05:23:56,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 05:23:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure printer_unbind [2024-11-28 05:23:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_unbind [2024-11-28 05:23:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-28 05:23:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-28 05:23:56,101 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2024-11-28 05:23:56,101 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2024-11-28 05:23:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure printer_close [2024-11-28 05:23:56,106 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_close [2024-11-28 05:23:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-11-28 05:23:56,106 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-11-28 05:23:56,106 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure poll_wait [2024-11-28 05:23:56,107 INFO L138 BoogieDeclarations]: Found implementation of procedure poll_wait [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure printer_fsync [2024-11-28 05:23:56,107 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_fsync [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-28 05:23:56,107 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-28 05:23:56,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2024-11-28 05:23:56,108 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure init_utsname [2024-11-28 05:23:56,108 INFO L138 BoogieDeclarations]: Found implementation of procedure init_utsname [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_enable [2024-11-28 05:23:56,108 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_enable [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-28 05:23:56,108 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-28 05:23:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-28 05:23:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-28 05:23:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-28 05:23:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-28 05:23:56,109 INFO L130 BoogieDeclarations]: Found specification of procedure printer_open [2024-11-28 05:23:56,109 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_open [2024-11-28 05:23:56,111 INFO L130 BoogieDeclarations]: Found specification of procedure printer_bind [2024-11-28 05:23:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_bind [2024-11-28 05:23:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2024-11-28 05:23:56,112 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2024-11-28 05:23:56,112 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-28 05:23:56,113 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-28 05:23:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-28 05:23:56,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-28 05:23:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure signal_pending [2024-11-28 05:23:56,113 INFO L138 BoogieDeclarations]: Found implementation of procedure signal_pending [2024-11-28 05:23:56,113 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-28 05:23:56,114 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-28 05:23:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2024-11-28 05:23:56,114 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2024-11-28 05:23:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_autoconfig [2024-11-28 05:23:56,114 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_autoconfig [2024-11-28 05:23:56,114 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-28 05:23:56,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2024-11-28 05:23:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure prepare_to_wait [2024-11-28 05:23:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure prepare_to_wait [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-28 05:23:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-28 05:23:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-28 05:23:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-28 05:23:56,116 INFO L130 BoogieDeclarations]: Found specification of procedure printer_setup [2024-11-28 05:23:56,116 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_setup [2024-11-28 05:23:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-11-28 05:23:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-11-28 05:23:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_chrdev_region [2024-11-28 05:23:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_chrdev_region [2024-11-28 05:23:56,117 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2024-11-28 05:23:56,117 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2024-11-28 05:23:56,119 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_spin_lock_irqsave [2024-11-28 05:23:56,120 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_spin_lock_irqsave [2024-11-28 05:23:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure set_gadget_data [2024-11-28 05:23:56,120 INFO L138 BoogieDeclarations]: Found implementation of procedure set_gadget_data [2024-11-28 05:23:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure printer_req_alloc [2024-11-28 05:23:56,122 INFO L138 BoogieDeclarations]: Found implementation of procedure printer_req_alloc [2024-11-28 05:23:56,122 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 05:23:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2024-11-28 05:23:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure usb_ep_disable [2024-11-28 05:23:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_ep_disable [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2024-11-28 05:23:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_chrdev_region [2024-11-28 05:23:56,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_chrdev_region [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 05:23:56,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2024-11-28 05:23:56,124 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-11-28 05:23:56,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-11-28 05:23:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure finish_wait [2024-11-28 05:23:56,125 INFO L138 BoogieDeclarations]: Found implementation of procedure finish_wait [2024-11-28 05:23:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:23:56,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:23:56,125 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2024-11-28 05:23:56,125 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2024-11-28 05:23:57,196 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:23:57,199 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:23:57,729 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-28 05:24:10,968 INFO L? ?]: Removed 1655 outVars from TransFormulas that were not future-live. [2024-11-28 05:24:10,969 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:24:11,048 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:24:11,048 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 05:24:11,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:24:11 BoogieIcfgContainer [2024-11-28 05:24:11,052 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:24:11,055 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:24:11,055 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:24:11,063 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:24:11,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:23:51" (1/3) ... [2024-11-28 05:24:11,067 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b60d6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:24:11, skipping insertion in model container [2024-11-28 05:24:11,067 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:23:54" (2/3) ... [2024-11-28 05:24:11,068 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b60d6f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:24:11, skipping insertion in model container [2024-11-28 05:24:11,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:24:11" (3/3) ... [2024-11-28 05:24:11,069 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i [2024-11-28 05:24:11,092 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:24:11,096 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-stable-2b9ec6c-1-106_1a-drivers--usb--gadget--g_printer.ko-entry_point_ldv-val-v0.8.cil.out.i that has 95 procedures, 1500 locations, 1 initial locations, 40 loop locations, and 1 error locations. [2024-11-28 05:24:11,279 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:24:11,294 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;@7e84ad21, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:24:11,294 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:24:11,305 INFO L276 IsEmpty]: Start isEmpty. Operand has 1395 states, 959 states have (on average 1.3618352450469238) internal successors, (1306), 1002 states have internal predecessors, (1306), 364 states have call successors, (364), 71 states have call predecessors, (364), 70 states have return successors, (359), 356 states have call predecessors, (359), 359 states have call successors, (359) [2024-11-28 05:24:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 05:24:11,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:11,333 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:11,334 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:11,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:11,343 INFO L85 PathProgramCache]: Analyzing trace with hash -675088219, now seen corresponding path program 1 times [2024-11-28 05:24:11,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:11,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013960519] [2024-11-28 05:24:11,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:11,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:15,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:15,940 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-28 05:24:15,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:15,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013960519] [2024-11-28 05:24:15,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013960519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:24:15,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [265691207] [2024-11-28 05:24:15,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:15,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:24:15,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:24:15,947 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:24:15,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:24:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:20,635 INFO L256 TraceCheckSpWp]: Trace formula consists of 5287 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 05:24:20,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:24:20,681 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-28 05:24:20,682 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:24:20,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [265691207] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:20,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:24:20,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 05:24:20,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728561731] [2024-11-28 05:24:20,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:20,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:24:20,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:20,720 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:24:20,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:24:20,727 INFO L87 Difference]: Start difference. First operand has 1395 states, 959 states have (on average 1.3618352450469238) internal successors, (1306), 1002 states have internal predecessors, (1306), 364 states have call successors, (364), 71 states have call predecessors, (364), 70 states have return successors, (359), 356 states have call predecessors, (359), 359 states have call successors, (359) Second operand has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 05:24:20,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:20,976 INFO L93 Difference]: Finished difference Result 2785 states and 4109 transitions. [2024-11-28 05:24:20,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:24:20,983 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 171 [2024-11-28 05:24:20,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:21,038 INFO L225 Difference]: With dead ends: 2785 [2024-11-28 05:24:21,038 INFO L226 Difference]: Without dead ends: 1383 [2024-11-28 05:24:21,053 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:24:21,058 INFO L435 NwaCegarLoop]: 2006 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:21,060 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2006 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:24:21,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2024-11-28 05:24:21,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2024-11-28 05:24:21,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 954 states have (on average 1.3480083857442349) internal successors, (1286), 990 states have internal predecessors, (1286), 359 states have call successors, (359), 70 states have call predecessors, (359), 69 states have return successors, (346), 343 states have call predecessors, (346), 346 states have call successors, (346) [2024-11-28 05:24:21,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1991 transitions. [2024-11-28 05:24:21,332 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1991 transitions. Word has length 171 [2024-11-28 05:24:21,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:21,335 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 1991 transitions. [2024-11-28 05:24:21,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.5) internal successors, (49), 2 states have internal predecessors, (49), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-28 05:24:21,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1991 transitions. [2024-11-28 05:24:21,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-28 05:24:21,350 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:21,350 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:21,370 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:24:21,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 05:24:21,552 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:21,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:21,552 INFO L85 PathProgramCache]: Analyzing trace with hash 859519769, now seen corresponding path program 1 times [2024-11-28 05:24:21,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:21,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101297120] [2024-11-28 05:24:21,553 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:21,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:24,896 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 05:24:24,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:24,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101297120] [2024-11-28 05:24:24,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101297120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:24,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:24,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:24:24,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90082953] [2024-11-28 05:24:24,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:24,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:24:24,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:24,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:24:24,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:24:24,904 INFO L87 Difference]: Start difference. First operand 1383 states and 1991 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 05:24:25,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:25,303 INFO L93 Difference]: Finished difference Result 2702 states and 3895 transitions. [2024-11-28 05:24:25,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:24:25,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 171 [2024-11-28 05:24:25,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:25,342 INFO L225 Difference]: With dead ends: 2702 [2024-11-28 05:24:25,342 INFO L226 Difference]: Without dead ends: 2673 [2024-11-28 05:24:25,346 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 [2024-11-28 05:24:25,347 INFO L435 NwaCegarLoop]: 1977 mSDtfsCounter, 1933 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 3856 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:25,348 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 3856 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:24:25,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2024-11-28 05:24:25,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 2669. [2024-11-28 05:24:25,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2669 states, 1852 states have (on average 1.349892008639309) internal successors, (2500), 1913 states have internal predecessors, (2500), 683 states have call successors, (683), 135 states have call predecessors, (683), 133 states have return successors, (671), 662 states have call predecessors, (671), 671 states have call successors, (671) [2024-11-28 05:24:25,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2669 states to 2669 states and 3854 transitions. [2024-11-28 05:24:25,626 INFO L78 Accepts]: Start accepts. Automaton has 2669 states and 3854 transitions. Word has length 171 [2024-11-28 05:24:25,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:25,627 INFO L471 AbstractCegarLoop]: Abstraction has 2669 states and 3854 transitions. [2024-11-28 05:24:25,627 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 05:24:25,628 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states and 3854 transitions. [2024-11-28 05:24:25,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-28 05:24:25,632 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:25,633 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:25,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:24:25,633 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:25,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:25,634 INFO L85 PathProgramCache]: Analyzing trace with hash 874437281, now seen corresponding path program 1 times [2024-11-28 05:24:25,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:25,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [540537851] [2024-11-28 05:24:25,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:25,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:28,499 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 05:24:28,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:28,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [540537851] [2024-11-28 05:24:28,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [540537851] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:28,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:28,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:24:28,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180587027] [2024-11-28 05:24:28,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:28,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:24:28,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:28,503 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:24:28,503 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:24:28,503 INFO L87 Difference]: Start difference. First operand 2669 states and 3854 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 05:24:28,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:28,897 INFO L93 Difference]: Finished difference Result 7905 states and 11434 transitions. [2024-11-28 05:24:28,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:24:28,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 172 [2024-11-28 05:24:28,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:28,963 INFO L225 Difference]: With dead ends: 7905 [2024-11-28 05:24:28,963 INFO L226 Difference]: Without dead ends: 5270 [2024-11-28 05:24:28,981 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 [2024-11-28 05:24:28,982 INFO L435 NwaCegarLoop]: 1991 mSDtfsCounter, 1933 mSDsluCounter, 1888 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1933 SdHoareTripleChecker+Valid, 3879 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:28,984 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1933 Valid, 3879 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:24:28,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5270 states. [2024-11-28 05:24:29,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5270 to 5262. [2024-11-28 05:24:29,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5262 states, 3663 states have (on average 1.3518973518973518) internal successors, (4952), 3776 states have internal predecessors, (4952), 1337 states have call successors, (1337), 265 states have call predecessors, (1337), 261 states have return successors, (1319), 1304 states have call predecessors, (1319), 1319 states have call successors, (1319) [2024-11-28 05:24:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5262 states to 5262 states and 7608 transitions. [2024-11-28 05:24:29,396 INFO L78 Accepts]: Start accepts. Automaton has 5262 states and 7608 transitions. Word has length 172 [2024-11-28 05:24:29,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:29,398 INFO L471 AbstractCegarLoop]: Abstraction has 5262 states and 7608 transitions. [2024-11-28 05:24:29,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-28 05:24:29,398 INFO L276 IsEmpty]: Start isEmpty. Operand 5262 states and 7608 transitions. [2024-11-28 05:24:29,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-28 05:24:29,403 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:29,403 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:29,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:24:29,404 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:29,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:29,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1882245724, now seen corresponding path program 1 times [2024-11-28 05:24:29,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:29,405 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958875561] [2024-11-28 05:24:29,405 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:29,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:32,592 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 05:24:32,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:32,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958875561] [2024-11-28 05:24:32,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958875561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:32,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:32,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:24:32,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728421435] [2024-11-28 05:24:32,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:32,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:24:32,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:32,595 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:24:32,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:24:32,596 INFO L87 Difference]: Start difference. First operand 5262 states and 7608 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:24:36,733 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:24:37,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:37,356 INFO L93 Difference]: Finished difference Result 15444 states and 22365 transitions. [2024-11-28 05:24:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:24:37,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 174 [2024-11-28 05:24:37,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:37,473 INFO L225 Difference]: With dead ends: 15444 [2024-11-28 05:24:37,473 INFO L226 Difference]: Without dead ends: 10216 [2024-11-28 05:24:37,509 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 [2024-11-28 05:24:37,512 INFO L435 NwaCegarLoop]: 2462 mSDtfsCounter, 1893 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 4338 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:37,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 4338 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 1 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 05:24:37,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10216 states. [2024-11-28 05:24:38,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10216 to 10208. [2024-11-28 05:24:38,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10208 states, 7110 states have (on average 1.3544303797468353) internal successors, (9630), 7318 states have internal predecessors, (9630), 2585 states have call successors, (2585), 517 states have call predecessors, (2585), 512 states have return successors, (2567), 2540 states have call predecessors, (2567), 2567 states have call successors, (2567) [2024-11-28 05:24:38,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10208 states to 10208 states and 14782 transitions. [2024-11-28 05:24:38,306 INFO L78 Accepts]: Start accepts. Automaton has 10208 states and 14782 transitions. Word has length 174 [2024-11-28 05:24:38,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:38,308 INFO L471 AbstractCegarLoop]: Abstraction has 10208 states and 14782 transitions. [2024-11-28 05:24:38,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 05:24:38,309 INFO L276 IsEmpty]: Start isEmpty. Operand 10208 states and 14782 transitions. [2024-11-28 05:24:38,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-28 05:24:38,317 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:38,317 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:38,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:24:38,318 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:38,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1300233002, now seen corresponding path program 1 times [2024-11-28 05:24:38,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:38,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247374914] [2024-11-28 05:24:38,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:38,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:41,785 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-28 05:24:41,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:41,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247374914] [2024-11-28 05:24:41,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247374914] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:41,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:24:41,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:24:41,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14208669] [2024-11-28 05:24:41,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:41,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:24:41,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:41,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:24:41,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:24:41,788 INFO L87 Difference]: Start difference. First operand 10208 states and 14782 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:24:42,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:42,927 INFO L93 Difference]: Finished difference Result 30537 states and 44238 transitions. [2024-11-28 05:24:42,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:24:42,928 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 195 [2024-11-28 05:24:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:43,159 INFO L225 Difference]: With dead ends: 30537 [2024-11-28 05:24:43,160 INFO L226 Difference]: Without dead ends: 20360 [2024-11-28 05:24:43,228 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 [2024-11-28 05:24:43,230 INFO L435 NwaCegarLoop]: 2040 mSDtfsCounter, 1921 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1921 SdHoareTripleChecker+Valid, 3951 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:43,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1921 Valid, 3951 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:24:43,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20360 states. [2024-11-28 05:24:44,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20360 to 20317. [2024-11-28 05:24:44,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20317 states, 14167 states have (on average 1.3551210559751534) internal successors, (19198), 14573 states have internal predecessors, (19198), 5133 states have call successors, (5133), 1024 states have call predecessors, (5133), 1016 states have return successors, (5113), 5055 states have call predecessors, (5113), 5113 states have call successors, (5113) [2024-11-28 05:24:44,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20317 states to 20317 states and 29444 transitions. [2024-11-28 05:24:44,812 INFO L78 Accepts]: Start accepts. Automaton has 20317 states and 29444 transitions. Word has length 195 [2024-11-28 05:24:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:24:44,813 INFO L471 AbstractCegarLoop]: Abstraction has 20317 states and 29444 transitions. [2024-11-28 05:24:44,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 3 states have call successors, (19), 2 states have call predecessors, (19), 1 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-11-28 05:24:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 20317 states and 29444 transitions. [2024-11-28 05:24:44,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-28 05:24:44,825 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:24:44,826 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:24:44,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 05:24:44,826 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:24:44,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:24:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1261890980, now seen corresponding path program 1 times [2024-11-28 05:24:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:24:44,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078755098] [2024-11-28 05:24:44,827 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:44,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:24:46,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:48,780 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-28 05:24:48,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:24:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078755098] [2024-11-28 05:24:48,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078755098] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:24:48,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318594321] [2024-11-28 05:24:48,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:24:48,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:24:48,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:24:48,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:24:48,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:24:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:24:57,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 5399 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 05:24:57,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:24:57,650 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-28 05:24:57,651 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:24:57,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318594321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:24:57,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:24:57,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-28 05:24:57,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329614599] [2024-11-28 05:24:57,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:24:57,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:24:57,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:24:57,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:24:57,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:24:57,654 INFO L87 Difference]: Start difference. First operand 20317 states and 29444 transitions. Second operand has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-28 05:24:59,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:24:59,178 INFO L93 Difference]: Finished difference Result 40624 states and 58876 transitions. [2024-11-28 05:24:59,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:24:59,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 197 [2024-11-28 05:24:59,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:24:59,324 INFO L225 Difference]: With dead ends: 40624 [2024-11-28 05:24:59,324 INFO L226 Difference]: Without dead ends: 20318 [2024-11-28 05:24:59,403 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:24:59,403 INFO L435 NwaCegarLoop]: 1969 mSDtfsCounter, 4 mSDsluCounter, 7860 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 9829 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:24:59,405 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 9829 Invalid, 55 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 05:24:59,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20318 states. [2024-11-28 05:25:00,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20318 to 20318. [2024-11-28 05:25:00,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20318 states, 14168 states have (on average 1.3550959909655562) internal successors, (19199), 14574 states have internal predecessors, (19199), 5133 states have call successors, (5133), 1024 states have call predecessors, (5133), 1016 states have return successors, (5113), 5055 states have call predecessors, (5113), 5113 states have call successors, (5113) [2024-11-28 05:25:00,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20318 states to 20318 states and 29445 transitions. [2024-11-28 05:25:00,847 INFO L78 Accepts]: Start accepts. Automaton has 20318 states and 29445 transitions. Word has length 197 [2024-11-28 05:25:00,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:00,848 INFO L471 AbstractCegarLoop]: Abstraction has 20318 states and 29445 transitions. [2024-11-28 05:25:00,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.0) internal successors, (75), 6 states have internal predecessors, (75), 3 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2024-11-28 05:25:00,850 INFO L276 IsEmpty]: Start isEmpty. Operand 20318 states and 29445 transitions. [2024-11-28 05:25:00,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-11-28 05:25:00,856 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:00,857 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:00,919 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 05:25:01,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:01,058 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:01,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:01,059 INFO L85 PathProgramCache]: Analyzing trace with hash 385929700, now seen corresponding path program 1 times [2024-11-28 05:25:01,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:01,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331122573] [2024-11-28 05:25:01,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:01,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:05,598 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-28 05:25:05,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:05,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331122573] [2024-11-28 05:25:05,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331122573] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:25:05,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621479322] [2024-11-28 05:25:05,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:05,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:05,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:05,602 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:25:05,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:25:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:10,219 INFO L256 TraceCheckSpWp]: Trace formula consists of 5474 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-28 05:25:10,232 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:10,532 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2024-11-28 05:25:10,533 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:25:12,348 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2024-11-28 05:25:12,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621479322] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:25:12,349 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:25:12,349 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-28 05:25:12,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561308673] [2024-11-28 05:25:12,350 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:25:12,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:25:12,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:12,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:25:12,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:25:12,353 INFO L87 Difference]: Start difference. First operand 20318 states and 29445 transitions. Second operand has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-28 05:25:14,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:14,442 INFO L93 Difference]: Finished difference Result 40637 states and 58891 transitions. [2024-11-28 05:25:14,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 05:25:14,443 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 202 [2024-11-28 05:25:14,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:14,669 INFO L225 Difference]: With dead ends: 40637 [2024-11-28 05:25:14,670 INFO L226 Difference]: Without dead ends: 20330 [2024-11-28 05:25:14,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 397 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=210, Unknown=0, NotChecked=0, Total=272 [2024-11-28 05:25:14,792 INFO L435 NwaCegarLoop]: 1971 mSDtfsCounter, 11 mSDsluCounter, 11809 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13780 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:14,792 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13780 Invalid, 124 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [10 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 05:25:14,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20330 states. [2024-11-28 05:25:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20330 to 20330. [2024-11-28 05:25:16,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20330 states, 14177 states have (on average 1.3549411017845807) internal successors, (19209), 14583 states have internal predecessors, (19209), 5134 states have call successors, (5134), 1026 states have call predecessors, (5134), 1018 states have return successors, (5114), 5056 states have call predecessors, (5114), 5114 states have call successors, (5114) [2024-11-28 05:25:16,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20330 states to 20330 states and 29457 transitions. [2024-11-28 05:25:16,792 INFO L78 Accepts]: Start accepts. Automaton has 20330 states and 29457 transitions. Word has length 202 [2024-11-28 05:25:16,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:16,793 INFO L471 AbstractCegarLoop]: Abstraction has 20330 states and 29457 transitions. [2024-11-28 05:25:16,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 8.818181818181818) internal successors, (97), 13 states have internal predecessors, (97), 4 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2024-11-28 05:25:16,793 INFO L276 IsEmpty]: Start isEmpty. Operand 20330 states and 29457 transitions. [2024-11-28 05:25:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-28 05:25:16,798 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:16,799 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:16,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:25:16,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:17,000 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:17,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:17,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2031076260, now seen corresponding path program 2 times [2024-11-28 05:25:17,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:17,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412429345] [2024-11-28 05:25:17,002 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 05:25:17,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:20,214 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-28 05:25:20,216 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 05:25:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-11-28 05:25:26,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:26,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412429345] [2024-11-28 05:25:26,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412429345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:25:26,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:25:26,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-28 05:25:26,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405894135] [2024-11-28 05:25:26,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:25:26,048 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-28 05:25:26,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:26,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-28 05:25:26,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-11-28 05:25:26,050 INFO L87 Difference]: Start difference. First operand 20330 states and 29457 transitions. Second operand has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 05:25:29,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:29,636 INFO L93 Difference]: Finished difference Result 55813 states and 80944 transitions. [2024-11-28 05:25:29,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 05:25:29,637 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) Word has length 207 [2024-11-28 05:25:29,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:29,924 INFO L225 Difference]: With dead ends: 55813 [2024-11-28 05:25:29,925 INFO L226 Difference]: Without dead ends: 35530 [2024-11-28 05:25:30,230 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2024-11-28 05:25:30,231 INFO L435 NwaCegarLoop]: 1961 mSDtfsCounter, 1977 mSDsluCounter, 21491 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1985 SdHoareTripleChecker+Valid, 23452 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:30,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1985 Valid, 23452 Invalid, 225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 05:25:30,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35530 states. [2024-11-28 05:25:32,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35530 to 35336. [2024-11-28 05:25:32,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35336 states, 24638 states have (on average 1.3558324539329492) internal successors, (33405), 25351 states have internal predecessors, (33405), 8921 states have call successors, (8921), 1772 states have call predecessors, (8921), 1776 states have return successors, (8957), 8800 states have call predecessors, (8957), 8901 states have call successors, (8957) [2024-11-28 05:25:32,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35336 states to 35336 states and 51283 transitions. [2024-11-28 05:25:32,302 INFO L78 Accepts]: Start accepts. Automaton has 35336 states and 51283 transitions. Word has length 207 [2024-11-28 05:25:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:32,302 INFO L471 AbstractCegarLoop]: Abstraction has 35336 states and 51283 transitions. [2024-11-28 05:25:32,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 5.818181818181818) internal successors, (64), 10 states have internal predecessors, (64), 4 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 5 states have call predecessors, (18), 4 states have call successors, (18) [2024-11-28 05:25:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 35336 states and 51283 transitions. [2024-11-28 05:25:32,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-28 05:25:32,311 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:32,311 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:32,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:25:32,312 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:32,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:32,312 INFO L85 PathProgramCache]: Analyzing trace with hash -158525136, now seen corresponding path program 1 times [2024-11-28 05:25:32,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:32,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806917292] [2024-11-28 05:25:32,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:32,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:35,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-11-28 05:25:35,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:35,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806917292] [2024-11-28 05:25:35,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806917292] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:25:35,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:25:35,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:25:35,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617372466] [2024-11-28 05:25:35,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:25:35,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:25:35,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:35,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:25:35,725 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:25:35,725 INFO L87 Difference]: Start difference. First operand 35336 states and 51283 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 05:25:39,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:25:40,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:25:40,898 INFO L93 Difference]: Finished difference Result 70632 states and 102514 transitions. [2024-11-28 05:25:40,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:25:40,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 226 [2024-11-28 05:25:40,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:25:41,272 INFO L225 Difference]: With dead ends: 70632 [2024-11-28 05:25:41,273 INFO L226 Difference]: Without dead ends: 35343 [2024-11-28 05:25:41,387 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:25:41,389 INFO L435 NwaCegarLoop]: 3770 mSDtfsCounter, 1872 mSDsluCounter, 1966 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1872 SdHoareTripleChecker+Valid, 5736 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:25:41,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1872 Valid, 5736 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.2s Time] [2024-11-28 05:25:41,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35343 states. [2024-11-28 05:25:43,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35343 to 35317. [2024-11-28 05:25:43,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35317 states, 24619 states have (on average 1.3554571672285634) internal successors, (33370), 25334 states have internal predecessors, (33370), 8921 states have call successors, (8921), 1772 states have call predecessors, (8921), 1776 states have return successors, (8957), 8798 states have call predecessors, (8957), 8901 states have call successors, (8957) [2024-11-28 05:25:43,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35317 states to 35317 states and 51248 transitions. [2024-11-28 05:25:43,415 INFO L78 Accepts]: Start accepts. Automaton has 35317 states and 51248 transitions. Word has length 226 [2024-11-28 05:25:43,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:25:43,416 INFO L471 AbstractCegarLoop]: Abstraction has 35317 states and 51248 transitions. [2024-11-28 05:25:43,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 05:25:43,416 INFO L276 IsEmpty]: Start isEmpty. Operand 35317 states and 51248 transitions. [2024-11-28 05:25:43,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2024-11-28 05:25:43,423 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:25:43,423 INFO L218 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:25:43,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 05:25:43,424 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:25:43,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:25:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash -619222875, now seen corresponding path program 1 times [2024-11-28 05:25:43,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:25:43,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989172222] [2024-11-28 05:25:43,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:43,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:25:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:47,977 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 0 proven. 63 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-28 05:25:47,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:25:47,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989172222] [2024-11-28 05:25:47,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989172222] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:25:47,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796118435] [2024-11-28 05:25:47,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:25:47,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:25:47,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:25:47,979 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:25:48,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:25:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:25:51,586 INFO L256 TraceCheckSpWp]: Trace formula consists of 5618 conjuncts, 89 conjuncts are in the unsatisfiable core [2024-11-28 05:25:51,597 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:25:55,451 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-28 05:25:55,451 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 05:25:55,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796118435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:25:55,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:25:55,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [8] total 28 [2024-11-28 05:25:55,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94060524] [2024-11-28 05:25:55,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:25:55,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-28 05:25:55,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:25:55,453 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-28 05:25:55,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2024-11-28 05:25:55,454 INFO L87 Difference]: Start difference. First operand 35317 states and 51248 transitions. Second operand has 22 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 17 states have internal predecessors, (74), 7 states have call successors, (23), 3 states have call predecessors, (23), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 05:25:59,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-28 05:26:07,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:26:07,702 INFO L93 Difference]: Finished difference Result 65360 states and 94880 transitions. [2024-11-28 05:26:07,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-28 05:26:07,703 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 17 states have internal predecessors, (74), 7 states have call successors, (23), 3 states have call predecessors, (23), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) Word has length 228 [2024-11-28 05:26:07,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:26:07,916 INFO L225 Difference]: With dead ends: 65360 [2024-11-28 05:26:07,916 INFO L226 Difference]: Without dead ends: 30090 [2024-11-28 05:26:08,043 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 238 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=131, Invalid=1509, Unknown=0, NotChecked=0, Total=1640 [2024-11-28 05:26:08,047 INFO L435 NwaCegarLoop]: 1941 mSDtfsCounter, 1942 mSDsluCounter, 28368 mSDsCounter, 0 mSdLazyCounter, 1064 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 30309 SdHoareTripleChecker+Invalid, 1077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1064 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:26:08,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 30309 Invalid, 1077 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [12 Valid, 1064 Invalid, 1 Unknown, 0 Unchecked, 9.1s Time] [2024-11-28 05:26:08,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30090 states. [2024-11-28 05:26:09,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30090 to 21426. [2024-11-28 05:26:09,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21426 states, 14928 states have (on average 1.354769560557342) internal successors, (20224), 15356 states have internal predecessors, (20224), 5418 states have call successors, (5418), 1085 states have call predecessors, (5418), 1079 states have return successors, (5418), 5341 states have call predecessors, (5418), 5406 states have call successors, (5418) [2024-11-28 05:26:09,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21426 states to 21426 states and 31060 transitions. [2024-11-28 05:26:09,737 INFO L78 Accepts]: Start accepts. Automaton has 21426 states and 31060 transitions. Word has length 228 [2024-11-28 05:26:09,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:26:09,738 INFO L471 AbstractCegarLoop]: Abstraction has 21426 states and 31060 transitions. [2024-11-28 05:26:09,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 17 states have internal predecessors, (74), 7 states have call successors, (23), 3 states have call predecessors, (23), 8 states have return successors, (22), 9 states have call predecessors, (22), 7 states have call successors, (22) [2024-11-28 05:26:09,738 INFO L276 IsEmpty]: Start isEmpty. Operand 21426 states and 31060 transitions. [2024-11-28 05:26:09,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-28 05:26:09,747 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:26:09,747 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:26:09,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 05:26:09,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b9b23d9-18da-4b92-aed0-3ac9c59f9767/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:26:09,948 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:26:09,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:26:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1582911619, now seen corresponding path program 1 times [2024-11-28 05:26:09,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:26:09,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303605430] [2024-11-28 05:26:09,949 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:26:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:26:11,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:26:12,848 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-28 05:26:12,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:26:12,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303605430] [2024-11-28 05:26:12,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303605430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:26:12,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:26:12,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:26:12,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276659650] [2024-11-28 05:26:12,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:26:12,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:26:12,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:26:12,850 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:26:12,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:26:12,851 INFO L87 Difference]: Start difference. First operand 21426 states and 31060 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-11-28 05:26:14,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:26:14,056 INFO L93 Difference]: Finished difference Result 34356 states and 49702 transitions. [2024-11-28 05:26:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:26:14,056 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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 237 [2024-11-28 05:26:14,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:26:14,170 INFO L225 Difference]: With dead ends: 34356 [2024-11-28 05:26:14,171 INFO L226 Difference]: Without dead ends: 12977 [2024-11-28 05:26:14,255 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:26:14,256 INFO L435 NwaCegarLoop]: 1959 mSDtfsCounter, 1953 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 5870 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:26:14,256 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 5870 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 05:26:14,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12977 states. [2024-11-28 05:26:15,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12977 to 12975. [2024-11-28 05:26:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12975 states, 9028 states have (on average 1.34769605671245) internal successors, (12167), 9287 states have internal predecessors, (12167), 3261 states have call successors, (3261), 691 states have call predecessors, (3261), 685 states have return successors, (3256), 3206 states have call predecessors, (3256), 3250 states have call successors, (3256) [2024-11-28 05:26:15,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12975 states to 12975 states and 18684 transitions. [2024-11-28 05:26:15,461 INFO L78 Accepts]: Start accepts. Automaton has 12975 states and 18684 transitions. Word has length 237 [2024-11-28 05:26:15,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:26:15,461 INFO L471 AbstractCegarLoop]: Abstraction has 12975 states and 18684 transitions. [2024-11-28 05:26:15,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 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) [2024-11-28 05:26:15,461 INFO L276 IsEmpty]: Start isEmpty. Operand 12975 states and 18684 transitions. [2024-11-28 05:26:15,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-28 05:26:15,468 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:26:15,468 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:26:15,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 05:26:15,468 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:26:15,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:26:15,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1870109542, now seen corresponding path program 1 times [2024-11-28 05:26:15,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:26:15,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284070945] [2024-11-28 05:26:15,469 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:26:15,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:26:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:26:18,185 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 405 trivial. 0 not checked. [2024-11-28 05:26:18,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:26:18,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284070945] [2024-11-28 05:26:18,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284070945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:26:18,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:26:18,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 05:26:18,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798022462] [2024-11-28 05:26:18,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:26:18,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 05:26:18,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:26:18,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 05:26:18,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:26:18,187 INFO L87 Difference]: Start difference. First operand 12975 states and 18684 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 05:26:18,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:26:18,844 INFO L93 Difference]: Finished difference Result 24673 states and 35511 transitions. [2024-11-28 05:26:18,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:26:18,845 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 240 [2024-11-28 05:26:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:26:18,938 INFO L225 Difference]: With dead ends: 24673 [2024-11-28 05:26:18,938 INFO L226 Difference]: Without dead ends: 12951 [2024-11-28 05:26:18,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:26:18,988 INFO L435 NwaCegarLoop]: 1959 mSDtfsCounter, 0 mSDsluCounter, 7813 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9772 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:26:18,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9772 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:26:19,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12951 states. [2024-11-28 05:26:19,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12951 to 12939. [2024-11-28 05:26:19,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12939 states, 9004 states have (on average 1.347734340293203) internal successors, (12135), 9263 states have internal predecessors, (12135), 3253 states have call successors, (3253), 683 states have call predecessors, (3253), 681 states have return successors, (3248), 3202 states have call predecessors, (3248), 3242 states have call successors, (3248) [2024-11-28 05:26:19,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12939 states to 12939 states and 18636 transitions. [2024-11-28 05:26:19,905 INFO L78 Accepts]: Start accepts. Automaton has 12939 states and 18636 transitions. Word has length 240 [2024-11-28 05:26:19,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:26:19,906 INFO L471 AbstractCegarLoop]: Abstraction has 12939 states and 18636 transitions. [2024-11-28 05:26:19,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-28 05:26:19,906 INFO L276 IsEmpty]: Start isEmpty. Operand 12939 states and 18636 transitions. [2024-11-28 05:26:19,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2024-11-28 05:26:19,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:26:19,913 INFO L218 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:26:19,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 05:26:19,913 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:26:19,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:26:19,914 INFO L85 PathProgramCache]: Analyzing trace with hash -2036757020, now seen corresponding path program 1 times [2024-11-28 05:26:19,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:26:19,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986149212] [2024-11-28 05:26:19,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:26:19,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms