./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.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_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 739f3451e6066963c0b7569760000f821b0e10d41a2bb279dc204ee3e2cd1a3e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:17:44,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:17:44,827 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 07:17:44,832 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:17:44,832 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:17:44,854 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:17:44,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:17:44,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:17:44,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:17:44,855 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:17:44,855 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 07:17:44,855 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 07:17:44,855 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:17:44,856 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 07:17:44,856 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:17:44,857 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:17:44,857 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:17:44,857 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:17:44,858 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 07:17:44,858 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 07:17:44,859 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 07:17:44,859 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 07:17:44,859 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 07:17:44,859 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_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 739f3451e6066963c0b7569760000f821b0e10d41a2bb279dc204ee3e2cd1a3e [2024-12-02 07:17:45,066 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:17:45,073 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:17:45,076 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:17:45,076 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:17:45,077 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:17:45,078 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2024-12-02 07:17:47,681 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/data/6120fb6a5/30593e35b3ac46f6b185a0e61da3e41f/FLAG63485d4be [2024-12-02 07:17:48,101 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:17:48,102 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2024-12-02 07:17:48,128 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/data/6120fb6a5/30593e35b3ac46f6b185a0e61da3e41f/FLAG63485d4be [2024-12-02 07:17:48,141 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/data/6120fb6a5/30593e35b3ac46f6b185a0e61da3e41f [2024-12-02 07:17:48,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:17:48,144 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:17:48,145 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:17:48,145 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:17:48,148 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:17:48,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:17:48" (1/1) ... [2024-12-02 07:17:48,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec763fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:48, skipping insertion in model container [2024-12-02 07:17:48,150 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:17:48" (1/1) ... [2024-12-02 07:17:48,217 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:17:49,486 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_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i[284626,284639] [2024-12-02 07:17:49,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:17:49,560 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:17:49,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6149-6150] [2024-12-02 07:17:49,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [6158-6159] [2024-12-02 07:17:49,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6355] [2024-12-02 07:17:49,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6363] [2024-12-02 07:17:49,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsb": "+S" (addr), "+c" (count): "d" (port)); [6370] [2024-12-02 07:17:49,691 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insb": "+D" (addr), "+c" (count): "d" (port)); [6377] [2024-12-02 07:17:49,843 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_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i[284626,284639] [2024-12-02 07:17:49,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:17:49,910 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:17:49,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49 WrapperNode [2024-12-02 07:17:49,911 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:17:49,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:17:49,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:17:49,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:17:49,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:49,964 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,083 INFO L138 Inliner]: procedures = 228, calls = 2107, calls flagged for inlining = 106, calls inlined = 86, statements flattened = 3367 [2024-12-02 07:17:50,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:17:50,084 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:17:50,084 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:17:50,084 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:17:50,095 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,095 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,394 INFO L175 MemorySlicer]: Split 921 memory accesses to 32 slices as follows [192, 224, 14, 6, 6, 7, 254, 6, 16, 14, 7, 6, 2, 6, 2, 6, 7, 2, 14, 6, 7, 6, 6, 4, 13, 6, 14, 6, 8, 5, 43, 6]. 28 percent of accesses are in the largest equivalence class. The 362 initializations are split as follows [192, 0, 14, 6, 6, 0, 8, 6, 16, 14, 0, 6, 0, 6, 2, 6, 0, 0, 14, 6, 0, 6, 6, 4, 0, 6, 14, 6, 8, 4, 0, 6]. The 356 writes are split as follows [0, 192, 0, 0, 0, 6, 84, 0, 0, 0, 6, 0, 0, 0, 0, 0, 6, 0, 0, 0, 6, 0, 0, 0, 13, 0, 0, 0, 0, 0, 43, 0]. [2024-12-02 07:17:50,395 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,395 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,475 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,480 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,519 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,530 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,557 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:17:50,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:17:50,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:17:50,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:17:50,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (1/1) ... [2024-12-02 07:17:50,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 07:17:50,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:17:50,591 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 07:17:50,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 07:17:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure insb [2024-12-02 07:17:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure insb [2024-12-02 07:17:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure WriteW6692 [2024-12-02 07:17:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteW6692 [2024-12-02 07:17:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_clear_bchannel [2024-12-02 07:17:50,650 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_clear_bchannel [2024-12-02 07:17:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 07:17:50,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#16 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#17 [2024-12-02 07:17:50,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#18 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#19 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#20 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#21 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#22 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#23 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#24 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#25 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#26 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#27 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#28 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#29 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#30 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#31 [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 07:17:50,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 07:17:50,652 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 07:17:50,652 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 07:17:50,652 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_unregister_device [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_unregister_device [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure ReadW6692 [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadW6692 [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure W6692B_interrupt [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692B_interrupt [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure outsb [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure outsb [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_empty_Bfifo [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_empty_Bfifo [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-12-02 07:17:50,653 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-12-02 07:17:50,653 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_fill_Bfifo [2024-12-02 07:17:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_fill_Bfifo [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure ReadW6692B [2024-12-02 07:17:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ReadW6692B [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 07:17:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_empty_Dfifo [2024-12-02 07:17:50,654 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_empty_Dfifo [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 07:17:50,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 07:17:50,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-12-02 07:17:50,657 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#27 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#28 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#29 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#30 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#31 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-12-02 07:17:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 07:17:50,658 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 07:17:50,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-12-02 07:17:50,659 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#27 [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#28 [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#29 [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#30 [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#31 [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 07:17:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2024-12-02 07:17:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_led_handler [2024-12-02 07:17:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_led_handler [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure send_next [2024-12-02 07:17:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure send_next [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-12-02 07:17:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-12-02 07:17:50,660 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 07:17:50,660 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure WriteW6692B [2024-12-02 07:17:50,661 INFO L138 BoogieDeclarations]: Found implementation of procedure WriteW6692B [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freebchannel [2024-12-02 07:17:50,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freebchannel [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure mISDN_freedchannel [2024-12-02 07:17:50,661 INFO L138 BoogieDeclarations]: Found implementation of procedure mISDN_freedchannel [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 07:17:50,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#16 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#17 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#18 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#19 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#20 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#21 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#22 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#23 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#24 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#25 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#26 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#27 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#28 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#29 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#30 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#31 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 07:17:50,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-12-02 07:17:50,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#27 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#28 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#29 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#30 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#31 [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure ph_command [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ph_command [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure skb_trim [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_trim [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure _set_debug [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure _set_debug [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-12-02 07:17:50,664 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-12-02 07:17:50,664 INFO L130 BoogieDeclarations]: Found specification of procedure print_hex_dump [2024-12-02 07:17:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure print_hex_dump [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure disable_hwirq [2024-12-02 07:17:50,665 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_hwirq [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-12-02 07:17:50,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#27 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#28 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#29 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#30 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#31 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_probe [2024-12-02 07:17:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_probe [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-12-02 07:17:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_drvdata [2024-12-02 07:17:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_drvdata [2024-12-02 07:17:50,666 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2024-12-02 07:17:50,666 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_3 [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_3 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure __list_add [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_add [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure recv_Bchannel [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure recv_Bchannel [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_lock_irqsave [2024-12-02 07:17:50,667 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_lock_irqsave [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 07:17:50,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#27 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#28 [2024-12-02 07:17:50,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#29 [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#30 [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#31 [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_3 [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_3 [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_write_unlock_irqrestore [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_write_unlock_irqrestore [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure W6692_fill_Dfifo [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure W6692_fill_Dfifo [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure w6692_mode [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure w6692_mode [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_dframe [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_dframe [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure mI_alloc_skb [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure mI_alloc_skb [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure l1_event [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure l1_event [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-12-02 07:17:50,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:17:50,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-12-02 07:17:50,670 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#27 [2024-12-02 07:17:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#28 [2024-12-02 07:17:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#29 [2024-12-02 07:17:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#30 [2024-12-02 07:17:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#31 [2024-12-02 07:17:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_clear_bit [2024-12-02 07:17:50,671 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_clear_bit [2024-12-02 07:17:50,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:17:50,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:17:51,259 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:17:51,262 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:17:51,304 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 07:17:58,614 INFO L? ?]: Removed 1110 outVars from TransFormulas that were not future-live. [2024-12-02 07:17:58,614 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:17:58,644 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:17:58,644 INFO L312 CfgBuilder]: Removed 5 assume(true) statements. [2024-12-02 07:17:58,645 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:17:58 BoogieIcfgContainer [2024-12-02 07:17:58,645 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:17:58,647 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 07:17:58,648 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 07:17:58,653 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 07:17:58,653 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:17:48" (1/3) ... [2024-12-02 07:17:58,653 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2daba0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:17:58, skipping insertion in model container [2024-12-02 07:17:58,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:17:49" (2/3) ... [2024-12-02 07:17:58,654 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2daba0c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:17:58, skipping insertion in model container [2024-12-02 07:17:58,654 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:17:58" (3/3) ... [2024-12-02 07:17:58,655 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i [2024-12-02 07:17:58,671 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 07:17:58,674 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--isdn--hardware--mISDN--w6692.ko-entry_point.cil.out.i that has 64 procedures, 1295 locations, 1 initial locations, 5 loop locations, and 1 error locations. [2024-12-02 07:17:58,761 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 07:17:58,773 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;@557dac7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 07:17:58,773 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 07:17:58,781 INFO L276 IsEmpty]: Start isEmpty. Operand has 1294 states, 909 states have (on average 1.3828382838283828) internal successors, (1257), 965 states have internal predecessors, (1257), 321 states have call successors, (321), 63 states have call predecessors, (321), 62 states have return successors, (315), 309 states have call predecessors, (315), 315 states have call successors, (315) [2024-12-02 07:17:58,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 07:17:58,791 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:17:58,792 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:17:58,792 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:17:58,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:17:58,797 INFO L85 PathProgramCache]: Analyzing trace with hash 745809999, now seen corresponding path program 1 times [2024-12-02 07:17:58,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:17:58,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685568245] [2024-12-02 07:17:58,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:17:58,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:00,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:00,351 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-12-02 07:18:00,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:00,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685568245] [2024-12-02 07:18:00,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685568245] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:00,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252512736] [2024-12-02 07:18:00,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:00,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:00,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:00,354 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:00,357 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:18:01,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:01,845 INFO L256 TraceCheckSpWp]: Trace formula consists of 3101 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 07:18:01,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:01,863 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-12-02 07:18:01,863 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:18:01,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252512736] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:01,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:18:01,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 07:18:01,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232949047] [2024-12-02 07:18:01,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:01,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 07:18:01,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:01,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 07:18:01,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:18:01,889 INFO L87 Difference]: Start difference. First operand has 1294 states, 909 states have (on average 1.3828382838283828) internal successors, (1257), 965 states have internal predecessors, (1257), 321 states have call successors, (321), 63 states have call predecessors, (321), 62 states have return successors, (315), 309 states have call predecessors, (315), 315 states have call successors, (315) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 07:18:02,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:02,012 INFO L93 Difference]: Finished difference Result 2583 states and 3815 transitions. [2024-12-02 07:18:02,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 07:18:02,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 64 [2024-12-02 07:18:02,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:02,035 INFO L225 Difference]: With dead ends: 2583 [2024-12-02 07:18:02,035 INFO L226 Difference]: Without dead ends: 1277 [2024-12-02 07:18:02,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 07:18:02,050 INFO L435 NwaCegarLoop]: 1883 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, 1883 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 [2024-12-02 07:18:02,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:18:02,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-12-02 07:18:02,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 1277. [2024-12-02 07:18:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1277 states, 900 states have (on average 1.3688888888888888) internal successors, (1232), 948 states have internal predecessors, (1232), 315 states have call successors, (315), 62 states have call predecessors, (315), 61 states have return successors, (314), 308 states have call predecessors, (314), 314 states have call successors, (314) [2024-12-02 07:18:02,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1277 states to 1277 states and 1861 transitions. [2024-12-02 07:18:02,174 INFO L78 Accepts]: Start accepts. Automaton has 1277 states and 1861 transitions. Word has length 64 [2024-12-02 07:18:02,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:02,175 INFO L471 AbstractCegarLoop]: Abstraction has 1277 states and 1861 transitions. [2024-12-02 07:18:02,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-12-02 07:18:02,176 INFO L276 IsEmpty]: Start isEmpty. Operand 1277 states and 1861 transitions. [2024-12-02 07:18:02,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-12-02 07:18:02,178 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:02,178 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:02,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:18:02,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 07:18:02,380 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:02,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:02,380 INFO L85 PathProgramCache]: Analyzing trace with hash -2023023275, now seen corresponding path program 1 times [2024-12-02 07:18:02,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:02,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797459548] [2024-12-02 07:18:02,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:02,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:03,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-12-02 07:18:03,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:03,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797459548] [2024-12-02 07:18:03,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797459548] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:03,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:03,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:18:03,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501353725] [2024-12-02 07:18:03,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:03,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:18:03,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:03,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:18:03,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:03,475 INFO L87 Difference]: Start difference. First operand 1277 states and 1861 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 07:18:03,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:03,652 INFO L93 Difference]: Finished difference Result 3386 states and 4947 transitions. [2024-12-02 07:18:03,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:18:03,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) Word has length 64 [2024-12-02 07:18:03,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:03,664 INFO L225 Difference]: With dead ends: 3386 [2024-12-02 07:18:03,665 INFO L226 Difference]: Without dead ends: 2118 [2024-12-02 07:18:03,669 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:03,670 INFO L435 NwaCegarLoop]: 1886 mSDtfsCounter, 1243 mSDsluCounter, 1837 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1243 SdHoareTripleChecker+Valid, 3723 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:03,670 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1243 Valid, 3723 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:18:03,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2118 states. [2024-12-02 07:18:03,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2118 to 2113. [2024-12-02 07:18:03,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2113 states, 1502 states have (on average 1.3861517976031958) internal successors, (2082), 1596 states have internal predecessors, (2082), 506 states have call successors, (506), 105 states have call predecessors, (506), 104 states have return successors, (505), 492 states have call predecessors, (505), 505 states have call successors, (505) [2024-12-02 07:18:03,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2113 states to 2113 states and 3093 transitions. [2024-12-02 07:18:03,749 INFO L78 Accepts]: Start accepts. Automaton has 2113 states and 3093 transitions. Word has length 64 [2024-12-02 07:18:03,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:03,750 INFO L471 AbstractCegarLoop]: Abstraction has 2113 states and 3093 transitions. [2024-12-02 07:18:03,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 2 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (5), 1 states have call predecessors, (5), 1 states have call successors, (5) [2024-12-02 07:18:03,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states and 3093 transitions. [2024-12-02 07:18:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-12-02 07:18:03,754 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:03,754 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2024-12-02 07:18:03,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 07:18:03,754 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:03,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:03,755 INFO L85 PathProgramCache]: Analyzing trace with hash 190120773, now seen corresponding path program 1 times [2024-12-02 07:18:03,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:03,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507721822] [2024-12-02 07:18:03,755 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:03,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:04,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:04,588 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-12-02 07:18:04,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:04,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507721822] [2024-12-02 07:18:04,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507721822] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:04,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:04,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:18:04,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382436182] [2024-12-02 07:18:04,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:04,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:18:04,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:04,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:18:04,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:04,590 INFO L87 Difference]: Start difference. First operand 2113 states and 3093 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 07:18:08,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:18:08,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:08,755 INFO L93 Difference]: Finished difference Result 4208 states and 6165 transitions. [2024-12-02 07:18:08,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:18:08,756 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) Word has length 99 [2024-12-02 07:18:08,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:08,771 INFO L225 Difference]: With dead ends: 4208 [2024-12-02 07:18:08,771 INFO L226 Difference]: Without dead ends: 2113 [2024-12-02 07:18:08,781 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:08,782 INFO L435 NwaCegarLoop]: 1861 mSDtfsCounter, 0 mSDsluCounter, 1856 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3717 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:08,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3717 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2024-12-02 07:18:08,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2113 states. [2024-12-02 07:18:08,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2113 to 2113. [2024-12-02 07:18:08,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2113 states, 1502 states have (on average 1.385486018641811) internal successors, (2081), 1596 states have internal predecessors, (2081), 506 states have call successors, (506), 105 states have call predecessors, (506), 104 states have return successors, (505), 492 states have call predecessors, (505), 505 states have call successors, (505) [2024-12-02 07:18:08,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2113 states to 2113 states and 3092 transitions. [2024-12-02 07:18:08,878 INFO L78 Accepts]: Start accepts. Automaton has 2113 states and 3092 transitions. Word has length 99 [2024-12-02 07:18:08,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:08,879 INFO L471 AbstractCegarLoop]: Abstraction has 2113 states and 3092 transitions. [2024-12-02 07:18:08,879 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (7), 1 states have call predecessors, (7), 1 states have call successors, (7) [2024-12-02 07:18:08,879 INFO L276 IsEmpty]: Start isEmpty. Operand 2113 states and 3092 transitions. [2024-12-02 07:18:08,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-12-02 07:18:08,882 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:08,882 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2024-12-02 07:18:08,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 07:18:08,882 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:08,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:08,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1797528433, now seen corresponding path program 1 times [2024-12-02 07:18:08,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:08,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639032608] [2024-12-02 07:18:08,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:08,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:09,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:10,033 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 07:18:10,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:10,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639032608] [2024-12-02 07:18:10,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639032608] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:10,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:10,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:18:10,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578872964] [2024-12-02 07:18:10,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:10,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:18:10,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:10,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:18:10,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:10,035 INFO L87 Difference]: Start difference. First operand 2113 states and 3092 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 07:18:10,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:10,088 INFO L93 Difference]: Finished difference Result 2118 states and 3098 transitions. [2024-12-02 07:18:10,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:18:10,089 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), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 116 [2024-12-02 07:18:10,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:10,098 INFO L225 Difference]: With dead ends: 2118 [2024-12-02 07:18:10,098 INFO L226 Difference]: Without dead ends: 2115 [2024-12-02 07:18:10,100 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:18:10,100 INFO L435 NwaCegarLoop]: 1859 mSDtfsCounter, 0 mSDsluCounter, 1854 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3713 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:10,100 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3713 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:18:10,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-12-02 07:18:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 2115. [2024-12-02 07:18:10,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 1504 states have (on average 1.3849734042553192) internal successors, (2083), 1598 states have internal predecessors, (2083), 506 states have call successors, (506), 105 states have call predecessors, (506), 104 states have return successors, (505), 492 states have call predecessors, (505), 505 states have call successors, (505) [2024-12-02 07:18:10,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 3094 transitions. [2024-12-02 07:18:10,158 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 3094 transitions. Word has length 116 [2024-12-02 07:18:10,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:10,158 INFO L471 AbstractCegarLoop]: Abstraction has 2115 states and 3094 transitions. [2024-12-02 07:18:10,158 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), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-12-02 07:18:10,158 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 3094 transitions. [2024-12-02 07:18:10,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:18:10,160 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:10,161 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:10,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 07:18:10,161 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:10,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:10,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1355828748, now seen corresponding path program 1 times [2024-12-02 07:18:10,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:10,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925961234] [2024-12-02 07:18:10,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:10,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:10,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:11,361 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-12-02 07:18:11,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:11,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925961234] [2024-12-02 07:18:11,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925961234] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:11,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:11,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:18:11,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116814414] [2024-12-02 07:18:11,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:11,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:18:11,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:11,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:18:11,363 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:18:11,363 INFO L87 Difference]: Start difference. First operand 2115 states and 3094 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:18:11,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:11,550 INFO L93 Difference]: Finished difference Result 4252 states and 6204 transitions. [2024-12-02 07:18:11,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:18:11,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 118 [2024-12-02 07:18:11,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:11,565 INFO L225 Difference]: With dead ends: 4252 [2024-12-02 07:18:11,565 INFO L226 Difference]: Without dead ends: 2156 [2024-12-02 07:18:11,575 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:18:11,575 INFO L435 NwaCegarLoop]: 1881 mSDtfsCounter, 502 mSDsluCounter, 3223 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 502 SdHoareTripleChecker+Valid, 5104 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:11,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [502 Valid, 5104 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:18:11,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2156 states. [2024-12-02 07:18:11,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2156 to 2156. [2024-12-02 07:18:11,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2156 states, 1532 states have (on average 1.3785900783289817) internal successors, (2112), 1626 states have internal predecessors, (2112), 509 states have call successors, (509), 115 states have call predecessors, (509), 114 states have return successors, (508), 495 states have call predecessors, (508), 508 states have call successors, (508) [2024-12-02 07:18:11,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2156 states to 2156 states and 3129 transitions. [2024-12-02 07:18:11,670 INFO L78 Accepts]: Start accepts. Automaton has 2156 states and 3129 transitions. Word has length 118 [2024-12-02 07:18:11,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:11,671 INFO L471 AbstractCegarLoop]: Abstraction has 2156 states and 3129 transitions. [2024-12-02 07:18:11,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (11), 3 states have call predecessors, (11), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-12-02 07:18:11,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2156 states and 3129 transitions. [2024-12-02 07:18:11,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-12-02 07:18:11,674 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:11,674 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:11,675 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 07:18:11,675 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:11,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:11,675 INFO L85 PathProgramCache]: Analyzing trace with hash 636533339, now seen corresponding path program 1 times [2024-12-02 07:18:11,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:11,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841665818] [2024-12-02 07:18:11,676 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:11,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:12,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:12,820 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:12,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:12,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841665818] [2024-12-02 07:18:12,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841665818] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:12,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:12,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:18:12,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268566350] [2024-12-02 07:18:12,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:12,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:18:12,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:12,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:18:12,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:18:12,822 INFO L87 Difference]: Start difference. First operand 2156 states and 3129 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:13,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:13,215 INFO L93 Difference]: Finished difference Result 6434 states and 9359 transitions. [2024-12-02 07:18:13,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:18:13,216 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 118 [2024-12-02 07:18:13,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:13,245 INFO L225 Difference]: With dead ends: 6434 [2024-12-02 07:18:13,245 INFO L226 Difference]: Without dead ends: 4301 [2024-12-02 07:18:13,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:18:13,257 INFO L435 NwaCegarLoop]: 2019 mSDtfsCounter, 1844 mSDsluCounter, 5867 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 7886 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:13,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 7886 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:18:13,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4301 states. [2024-12-02 07:18:13,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4301 to 4294. [2024-12-02 07:18:13,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4294 states, 3054 states have (on average 1.3785199738048461) internal successors, (4210), 3242 states have internal predecessors, (4210), 1012 states have call successors, (1012), 228 states have call predecessors, (1012), 227 states have return successors, (1016), 985 states have call predecessors, (1016), 1011 states have call successors, (1016) [2024-12-02 07:18:13,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4294 states to 4294 states and 6238 transitions. [2024-12-02 07:18:13,561 INFO L78 Accepts]: Start accepts. Automaton has 4294 states and 6238 transitions. Word has length 118 [2024-12-02 07:18:13,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:13,562 INFO L471 AbstractCegarLoop]: Abstraction has 4294 states and 6238 transitions. [2024-12-02 07:18:13,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:13,562 INFO L276 IsEmpty]: Start isEmpty. Operand 4294 states and 6238 transitions. [2024-12-02 07:18:13,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-12-02 07:18:13,566 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:13,566 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 07:18:13,566 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 07:18:13,567 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:13,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:13,567 INFO L85 PathProgramCache]: Analyzing trace with hash 68406076, now seen corresponding path program 1 times [2024-12-02 07:18:13,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:13,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169387643] [2024-12-02 07:18:13,567 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:13,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:14,677 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:14,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:14,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169387643] [2024-12-02 07:18:14,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169387643] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:14,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:14,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:18:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482763276] [2024-12-02 07:18:14,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:14,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:18:14,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:14,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:18:14,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:18:14,679 INFO L87 Difference]: Start difference. First operand 4294 states and 6238 transitions. Second operand has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:15,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:15,042 INFO L93 Difference]: Finished difference Result 12858 states and 18712 transitions. [2024-12-02 07:18:15,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:18:15,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 117 [2024-12-02 07:18:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:15,080 INFO L225 Difference]: With dead ends: 12858 [2024-12-02 07:18:15,080 INFO L226 Difference]: Without dead ends: 8587 [2024-12-02 07:18:15,097 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:18:15,098 INFO L435 NwaCegarLoop]: 2008 mSDtfsCounter, 1844 mSDsluCounter, 5847 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1845 SdHoareTripleChecker+Valid, 7855 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:15,098 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1845 Valid, 7855 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:18:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8587 states. [2024-12-02 07:18:15,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8587 to 8548. [2024-12-02 07:18:15,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8548 states, 6078 states have (on average 1.3792365909838762) internal successors, (8383), 6468 states have internal predecessors, (8383), 2016 states have call successors, (2016), 454 states have call predecessors, (2016), 453 states have return successors, (2037), 1949 states have call predecessors, (2037), 2015 states have call successors, (2037) [2024-12-02 07:18:15,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8548 states to 8548 states and 12436 transitions. [2024-12-02 07:18:15,606 INFO L78 Accepts]: Start accepts. Automaton has 8548 states and 12436 transitions. Word has length 117 [2024-12-02 07:18:15,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:15,606 INFO L471 AbstractCegarLoop]: Abstraction has 8548 states and 12436 transitions. [2024-12-02 07:18:15,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.8) internal successors, (64), 4 states have internal predecessors, (64), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:15,607 INFO L276 IsEmpty]: Start isEmpty. Operand 8548 states and 12436 transitions. [2024-12-02 07:18:15,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-12-02 07:18:15,610 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:15,610 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 07:18:15,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 07:18:15,611 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:15,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:15,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1714086343, now seen corresponding path program 1 times [2024-12-02 07:18:15,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:15,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910988078] [2024-12-02 07:18:15,611 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:15,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:16,761 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:16,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:16,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910988078] [2024-12-02 07:18:16,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910988078] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:16,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:16,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:18:16,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868550182] [2024-12-02 07:18:16,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:16,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:18:16,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:16,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:18:16,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:18:16,763 INFO L87 Difference]: Start difference. First operand 8548 states and 12436 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:17,590 INFO L93 Difference]: Finished difference Result 25653 states and 37382 transitions. [2024-12-02 07:18:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:18:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 119 [2024-12-02 07:18:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:17,735 INFO L225 Difference]: With dead ends: 25653 [2024-12-02 07:18:17,735 INFO L226 Difference]: Without dead ends: 17128 [2024-12-02 07:18:17,790 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:18:17,790 INFO L435 NwaCegarLoop]: 1857 mSDtfsCounter, 1847 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1848 SdHoareTripleChecker+Valid, 7400 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:17,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1848 Valid, 7400 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:18:17,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17128 states. [2024-12-02 07:18:18,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17128 to 17085. [2024-12-02 07:18:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17085 states, 12155 states have (on average 1.378774167009461) internal successors, (16759), 12931 states have internal predecessors, (16759), 4022 states have call successors, (4022), 908 states have call predecessors, (4022), 907 states have return successors, (4094), 3893 states have call predecessors, (4094), 4021 states have call successors, (4094) [2024-12-02 07:18:18,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17085 states to 17085 states and 24875 transitions. [2024-12-02 07:18:18,698 INFO L78 Accepts]: Start accepts. Automaton has 17085 states and 24875 transitions. Word has length 119 [2024-12-02 07:18:18,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:18,698 INFO L471 AbstractCegarLoop]: Abstraction has 17085 states and 24875 transitions. [2024-12-02 07:18:18,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 4 states have internal predecessors, (66), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:18,699 INFO L276 IsEmpty]: Start isEmpty. Operand 17085 states and 24875 transitions. [2024-12-02 07:18:18,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-12-02 07:18:18,701 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:18,701 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:18,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 07:18:18,701 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:18,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:18,701 INFO L85 PathProgramCache]: Analyzing trace with hash -56580808, now seen corresponding path program 1 times [2024-12-02 07:18:18,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:18,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402903962] [2024-12-02 07:18:18,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:18,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:19,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:19,601 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:19,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:19,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402903962] [2024-12-02 07:18:19,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402903962] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:19,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:18:19,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:18:19,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488859412] [2024-12-02 07:18:19,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:19,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:18:19,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:19,603 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:18:19,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:18:19,603 INFO L87 Difference]: Start difference. First operand 17085 states and 24875 transitions. Second operand has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:20,414 INFO L93 Difference]: Finished difference Result 49853 states and 72645 transitions. [2024-12-02 07:18:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 07:18:20,415 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 120 [2024-12-02 07:18:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:20,564 INFO L225 Difference]: With dead ends: 49853 [2024-12-02 07:18:20,564 INFO L226 Difference]: Without dead ends: 32791 [2024-12-02 07:18:20,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:18:20,622 INFO L435 NwaCegarLoop]: 1857 mSDtfsCounter, 1848 mSDsluCounter, 5543 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1849 SdHoareTripleChecker+Valid, 7400 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:20,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1849 Valid, 7400 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:18:20,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32791 states. [2024-12-02 07:18:21,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32791 to 32710. [2024-12-02 07:18:21,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32710 states, 23280 states have (on average 1.3761168384879725) internal successors, (32036), 24735 states have internal predecessors, (32036), 7674 states have call successors, (7674), 1756 states have call predecessors, (7674), 1755 states have return successors, (7886), 7437 states have call predecessors, (7886), 7673 states have call successors, (7886) [2024-12-02 07:18:22,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32710 states to 32710 states and 47596 transitions. [2024-12-02 07:18:22,032 INFO L78 Accepts]: Start accepts. Automaton has 32710 states and 47596 transitions. Word has length 120 [2024-12-02 07:18:22,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:22,032 INFO L471 AbstractCegarLoop]: Abstraction has 32710 states and 47596 transitions. [2024-12-02 07:18:22,032 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.4) internal successors, (67), 4 states have internal predecessors, (67), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-12-02 07:18:22,033 INFO L276 IsEmpty]: Start isEmpty. Operand 32710 states and 47596 transitions. [2024-12-02 07:18:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-12-02 07:18:22,034 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:22,035 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 07:18:22,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 07:18:22,035 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:22,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:22,035 INFO L85 PathProgramCache]: Analyzing trace with hash -546921472, now seen corresponding path program 1 times [2024-12-02 07:18:22,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:22,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488379444] [2024-12-02 07:18:22,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:22,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 07:18:23,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:23,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488379444] [2024-12-02 07:18:23,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488379444] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:23,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665802512] [2024-12-02 07:18:23,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:23,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:23,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:23,421 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:23,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:18:25,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:25,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 3580 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:18:25,022 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:25,277 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:25,277 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:18:25,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665802512] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:25,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:18:25,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-12-02 07:18:25,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186337583] [2024-12-02 07:18:25,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:25,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:18:25,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:25,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:18:25,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 07:18:25,279 INFO L87 Difference]: Start difference. First operand 32710 states and 47596 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:26,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:26,794 INFO L93 Difference]: Finished difference Result 81372 states and 118380 transitions. [2024-12-02 07:18:26,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:18:26,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 130 [2024-12-02 07:18:26,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:27,048 INFO L225 Difference]: With dead ends: 81372 [2024-12-02 07:18:27,048 INFO L226 Difference]: Without dead ends: 48685 [2024-12-02 07:18:27,166 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 07:18:27,167 INFO L435 NwaCegarLoop]: 2955 mSDtfsCounter, 1876 mSDsluCounter, 13658 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1880 SdHoareTripleChecker+Valid, 16613 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:27,167 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1880 Valid, 16613 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 07:18:27,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48685 states. [2024-12-02 07:18:28,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48685 to 43058. [2024-12-02 07:18:28,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43058 states, 30680 states have (on average 1.3716427640156454) internal successors, (42082), 32511 states have internal predecessors, (42082), 10039 states have call successors, (10039), 2323 states have call predecessors, (10039), 2338 states have return successors, (10450), 9740 states have call predecessors, (10450), 10038 states have call successors, (10450) [2024-12-02 07:18:29,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43058 states to 43058 states and 62571 transitions. [2024-12-02 07:18:29,275 INFO L78 Accepts]: Start accepts. Automaton has 43058 states and 62571 transitions. Word has length 130 [2024-12-02 07:18:29,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:29,275 INFO L471 AbstractCegarLoop]: Abstraction has 43058 states and 62571 transitions. [2024-12-02 07:18:29,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 5 states have internal predecessors, (75), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:29,276 INFO L276 IsEmpty]: Start isEmpty. Operand 43058 states and 62571 transitions. [2024-12-02 07:18:29,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-12-02 07:18:29,279 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:29,279 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 07:18:29,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:18:29,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 07:18:29,480 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:29,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:29,480 INFO L85 PathProgramCache]: Analyzing trace with hash 902202588, now seen corresponding path program 1 times [2024-12-02 07:18:29,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:29,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685373859] [2024-12-02 07:18:29,480 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:29,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:30,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:30,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685373859] [2024-12-02 07:18:30,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685373859] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:30,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [641017793] [2024-12-02 07:18:30,631 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:30,631 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:30,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:30,633 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:30,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 07:18:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:32,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 3582 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:18:32,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:32,502 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:32,502 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:18:32,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [641017793] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:32,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:18:32,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 07:18:32,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844643464] [2024-12-02 07:18:32,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:32,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:18:32,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:32,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:18:32,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:18:32,504 INFO L87 Difference]: Start difference. First operand 43058 states and 62571 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:34,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:34,119 INFO L93 Difference]: Finished difference Result 107506 states and 156314 transitions. [2024-12-02 07:18:34,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:18:34,120 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 131 [2024-12-02 07:18:34,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:34,373 INFO L225 Difference]: With dead ends: 107506 [2024-12-02 07:18:34,373 INFO L226 Difference]: Without dead ends: 64471 [2024-12-02 07:18:34,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:18:34,525 INFO L435 NwaCegarLoop]: 3125 mSDtfsCounter, 1875 mSDsluCounter, 14325 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 17450 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:34,526 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 17450 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:18:34,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64471 states. [2024-12-02 07:18:36,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64471 to 53446. [2024-12-02 07:18:36,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53446 states, 38104 states have (on average 1.3686752047029183) internal successors, (52152), 40335 states have internal predecessors, (52152), 12404 states have call successors, (12404), 2890 states have call predecessors, (12404), 2937 states have return successors, (13022), 12035 states have call predecessors, (13022), 12403 states have call successors, (13022) [2024-12-02 07:18:36,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53446 states to 53446 states and 77578 transitions. [2024-12-02 07:18:36,427 INFO L78 Accepts]: Start accepts. Automaton has 53446 states and 77578 transitions. Word has length 131 [2024-12-02 07:18:36,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:36,427 INFO L471 AbstractCegarLoop]: Abstraction has 53446 states and 77578 transitions. [2024-12-02 07:18:36,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 5 states have internal predecessors, (76), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:36,427 INFO L276 IsEmpty]: Start isEmpty. Operand 53446 states and 77578 transitions. [2024-12-02 07:18:36,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-12-02 07:18:36,431 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:36,431 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 07:18:36,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 07:18:36,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-12-02 07:18:36,631 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:36,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:36,632 INFO L85 PathProgramCache]: Analyzing trace with hash 22339417, now seen corresponding path program 1 times [2024-12-02 07:18:36,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:36,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630830705] [2024-12-02 07:18:36,632 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:36,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:37,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:37,952 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:37,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:37,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630830705] [2024-12-02 07:18:37,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630830705] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:37,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305624197] [2024-12-02 07:18:37,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:37,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:37,953 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:37,955 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:37,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 07:18:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:39,756 INFO L256 TraceCheckSpWp]: Trace formula consists of 3584 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:18:39,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:40,026 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:18:40,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305624197] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:40,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:18:40,026 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 07:18:40,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534907255] [2024-12-02 07:18:40,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:40,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:18:40,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:40,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:18:40,028 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:18:40,028 INFO L87 Difference]: Start difference. First operand 53446 states and 77578 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:41,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:41,832 INFO L93 Difference]: Finished difference Result 128263 states and 186298 transitions. [2024-12-02 07:18:41,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:18:41,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 132 [2024-12-02 07:18:41,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:42,154 INFO L225 Difference]: With dead ends: 128263 [2024-12-02 07:18:42,154 INFO L226 Difference]: Without dead ends: 74840 [2024-12-02 07:18:42,503 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:18:42,504 INFO L435 NwaCegarLoop]: 3125 mSDtfsCounter, 1875 mSDsluCounter, 14326 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 17451 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:42,504 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 17451 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:18:42,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74840 states. [2024-12-02 07:18:43,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74840 to 53478. [2024-12-02 07:18:43,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53478 states, 38128 states have (on average 1.3684431389005456) internal successors, (52176), 40359 states have internal predecessors, (52176), 12404 states have call successors, (12404), 2890 states have call predecessors, (12404), 2945 states have return successors, (13034), 12043 states have call predecessors, (13034), 12403 states have call successors, (13034) [2024-12-02 07:18:44,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53478 states to 53478 states and 77614 transitions. [2024-12-02 07:18:44,167 INFO L78 Accepts]: Start accepts. Automaton has 53478 states and 77614 transitions. Word has length 132 [2024-12-02 07:18:44,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:44,168 INFO L471 AbstractCegarLoop]: Abstraction has 53478 states and 77614 transitions. [2024-12-02 07:18:44,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 5 states have internal predecessors, (77), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 53478 states and 77614 transitions. [2024-12-02 07:18:44,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-12-02 07:18:44,170 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:44,170 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 07:18:44,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 07:18:44,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 07:18:44,371 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:44,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:44,371 INFO L85 PathProgramCache]: Analyzing trace with hash -41683883, now seen corresponding path program 1 times [2024-12-02 07:18:44,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:44,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770542030] [2024-12-02 07:18:44,372 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:44,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:44,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:45,413 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:45,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:45,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770542030] [2024-12-02 07:18:45,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770542030] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:45,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [622442893] [2024-12-02 07:18:45,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:45,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:45,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:45,415 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:45,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 07:18:47,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:47,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 3586 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 07:18:47,332 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-12-02 07:18:47,601 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:18:47,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [622442893] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:18:47,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:18:47,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 07:18:47,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352180891] [2024-12-02 07:18:47,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:18:47,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 07:18:47,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:47,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:18:47,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 07:18:47,602 INFO L87 Difference]: Start difference. First operand 53478 states and 77614 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:50,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:18:50,001 INFO L93 Difference]: Finished difference Result 128311 states and 186350 transitions. [2024-12-02 07:18:50,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 07:18:50,002 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) Word has length 133 [2024-12-02 07:18:50,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:18:50,284 INFO L225 Difference]: With dead ends: 128311 [2024-12-02 07:18:50,284 INFO L226 Difference]: Without dead ends: 74856 [2024-12-02 07:18:50,431 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 07:18:50,432 INFO L435 NwaCegarLoop]: 3125 mSDtfsCounter, 1875 mSDsluCounter, 14326 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1879 SdHoareTripleChecker+Valid, 17451 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:18:50,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1879 Valid, 17451 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:18:50,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74856 states. [2024-12-02 07:18:52,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74856 to 53498. [2024-12-02 07:18:52,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53498 states, 38144 states have (on average 1.3682885906040267) internal successors, (52192), 40371 states have internal predecessors, (52192), 12404 states have call successors, (12404), 2890 states have call predecessors, (12404), 2949 states have return successors, (13038), 12051 states have call predecessors, (13038), 12403 states have call successors, (13038) [2024-12-02 07:18:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53498 states to 53498 states and 77634 transitions. [2024-12-02 07:18:52,776 INFO L78 Accepts]: Start accepts. Automaton has 53498 states and 77634 transitions. Word has length 133 [2024-12-02 07:18:52,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:18:52,776 INFO L471 AbstractCegarLoop]: Abstraction has 53498 states and 77634 transitions. [2024-12-02 07:18:52,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 5 states have internal predecessors, (78), 3 states have call successors, (16), 3 states have call predecessors, (16), 3 states have return successors, (11), 3 states have call predecessors, (11), 2 states have call successors, (11) [2024-12-02 07:18:52,776 INFO L276 IsEmpty]: Start isEmpty. Operand 53498 states and 77634 transitions. [2024-12-02 07:18:52,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-12-02 07:18:52,779 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:18:52,779 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:18:52,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 07:18:52,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 07:18:52,979 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:18:52,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:18:52,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1727543856, now seen corresponding path program 1 times [2024-12-02 07:18:52,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:18:52,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490140986] [2024-12-02 07:18:52,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:52,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:18:53,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:53,993 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-12-02 07:18:53,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:18:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490140986] [2024-12-02 07:18:53,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490140986] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:18:53,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006792600] [2024-12-02 07:18:53,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:18:53,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:18:53,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:18:53,996 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:18:53,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 07:18:55,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:18:55,623 INFO L256 TraceCheckSpWp]: Trace formula consists of 3691 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:18:55,627 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:18:56,106 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 07:18:56,107 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:18:57,045 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 07:18:57,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006792600] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:18:57,045 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:18:57,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 07:18:57,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995032822] [2024-12-02 07:18:57,046 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:18:57,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:18:57,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:18:57,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:18:57,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:18:57,047 INFO L87 Difference]: Start difference. First operand 53498 states and 77634 transitions. Second operand has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 07:19:01,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:19:05,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:19:09,135 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:19:13,154 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:19:45,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:19:45,919 INFO L93 Difference]: Finished difference Result 150046 states and 218021 transitions. [2024-12-02 07:19:45,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-12-02 07:19:45,919 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 146 [2024-12-02 07:19:45,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:19:46,426 INFO L225 Difference]: With dead ends: 150046 [2024-12-02 07:19:46,426 INFO L226 Difference]: Without dead ends: 96515 [2024-12-02 07:19:46,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 282 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1768 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=747, Invalid=5105, Unknown=0, NotChecked=0, Total=5852 [2024-12-02 07:19:46,546 INFO L435 NwaCegarLoop]: 5154 mSDtfsCounter, 10940 mSDsluCounter, 58693 mSDsCounter, 0 mSdLazyCounter, 10210 mSolverCounterSat, 2370 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10961 SdHoareTripleChecker+Valid, 63847 SdHoareTripleChecker+Invalid, 12584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 2370 IncrementalHoareTripleChecker+Valid, 10210 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.7s IncrementalHoareTripleChecker+Time [2024-12-02 07:19:46,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10961 Valid, 63847 Invalid, 12584 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [2370 Valid, 10210 Invalid, 4 Unknown, 0 Unchecked, 42.7s Time] [2024-12-02 07:19:46,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96515 states. [2024-12-02 07:19:48,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96515 to 85188. [2024-12-02 07:19:48,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85188 states, 60690 states have (on average 1.3668643928159498) internal successors, (82955), 64190 states have internal predecessors, (82955), 19832 states have call successors, (19832), 4558 states have call predecessors, (19832), 4665 states have return successors, (20940), 19261 states have call predecessors, (20940), 19831 states have call successors, (20940) [2024-12-02 07:19:49,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85188 states to 85188 states and 123727 transitions. [2024-12-02 07:19:49,086 INFO L78 Accepts]: Start accepts. Automaton has 85188 states and 123727 transitions. Word has length 146 [2024-12-02 07:19:49,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:19:49,087 INFO L471 AbstractCegarLoop]: Abstraction has 85188 states and 123727 transitions. [2024-12-02 07:19:49,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.611111111111111) internal successors, (137), 14 states have internal predecessors, (137), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 07:19:49,087 INFO L276 IsEmpty]: Start isEmpty. Operand 85188 states and 123727 transitions. [2024-12-02 07:19:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-12-02 07:19:49,090 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:19:49,090 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:19:49,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 07:19:49,290 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-12-02 07:19:49,291 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:19:49,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:19:49,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1176242669, now seen corresponding path program 1 times [2024-12-02 07:19:49,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:19:49,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824434381] [2024-12-02 07:19:49,291 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:49,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:19:49,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:50,361 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-12-02 07:19:50,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:19:50,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824434381] [2024-12-02 07:19:50,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824434381] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:19:50,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2103792917] [2024-12-02 07:19:50,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:19:50,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:19:50,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:19:50,363 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:19:50,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 07:19:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:19:52,049 INFO L256 TraceCheckSpWp]: Trace formula consists of 3693 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:19:52,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:19:52,581 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 07:19:52,581 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:19:53,489 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 07:19:53,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2103792917] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:19:53,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:19:53,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 07:19:53,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528000143] [2024-12-02 07:19:53,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:19:53,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:19:53,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:19:53,490 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:19:53,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:19:53,491 INFO L87 Difference]: Start difference. First operand 85188 states and 123727 transitions. Second operand has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 07:19:57,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:01,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:05,564 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:09,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:29,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:20:29,853 INFO L93 Difference]: Finished difference Result 212498 states and 308728 transitions. [2024-12-02 07:20:29,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-12-02 07:20:29,853 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 147 [2024-12-02 07:20:29,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:20:30,561 INFO L225 Difference]: With dead ends: 212498 [2024-12-02 07:20:30,561 INFO L226 Difference]: Without dead ends: 127277 [2024-12-02 07:20:30,761 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 367 GetRequests, 284 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1789 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=747, Invalid=5105, Unknown=0, NotChecked=0, Total=5852 [2024-12-02 07:20:30,762 INFO L435 NwaCegarLoop]: 3125 mSDtfsCounter, 13330 mSDsluCounter, 30231 mSDsCounter, 0 mSdLazyCounter, 4748 mSolverCounterSat, 3270 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13351 SdHoareTripleChecker+Valid, 33356 SdHoareTripleChecker+Invalid, 8022 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3270 IncrementalHoareTripleChecker+Valid, 4748 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.8s IncrementalHoareTripleChecker+Time [2024-12-02 07:20:30,762 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13351 Valid, 33356 Invalid, 8022 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3270 Valid, 4748 Invalid, 4 Unknown, 0 Unchecked, 29.8s Time] [2024-12-02 07:20:30,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127277 states. [2024-12-02 07:20:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127277 to 89891. [2024-12-02 07:20:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89891 states, 64042 states have (on average 1.3661347240873176) internal successors, (87490), 67701 states have internal predecessors, (87490), 20917 states have call successors, (20917), 4821 states have call predecessors, (20917), 4931 states have return successors, (22067), 20320 states have call predecessors, (22067), 20916 states have call successors, (22067) [2024-12-02 07:20:33,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89891 states to 89891 states and 130474 transitions. [2024-12-02 07:20:33,830 INFO L78 Accepts]: Start accepts. Automaton has 89891 states and 130474 transitions. Word has length 147 [2024-12-02 07:20:33,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:20:33,830 INFO L471 AbstractCegarLoop]: Abstraction has 89891 states and 130474 transitions. [2024-12-02 07:20:33,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.722222222222222) internal successors, (139), 14 states have internal predecessors, (139), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 07:20:33,831 INFO L276 IsEmpty]: Start isEmpty. Operand 89891 states and 130474 transitions. [2024-12-02 07:20:33,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2024-12-02 07:20:33,834 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:20:33,834 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:20:33,848 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 07:20:34,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-12-02 07:20:34,034 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:20:34,035 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:20:34,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1791019415, now seen corresponding path program 1 times [2024-12-02 07:20:34,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:20:34,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418427164] [2024-12-02 07:20:34,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:20:34,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:20:34,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:20:35,339 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 18 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-12-02 07:20:35,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:20:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418427164] [2024-12-02 07:20:35,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418427164] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:20:35,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104701744] [2024-12-02 07:20:35,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:20:35,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:20:35,340 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:20:35,341 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:20:35,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 07:20:37,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:20:37,460 INFO L256 TraceCheckSpWp]: Trace formula consists of 3695 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 07:20:37,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:20:37,988 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 14 proven. 7 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 07:20:37,989 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:20:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 07:20:38,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104701744] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:20:38,939 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:20:38,939 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 07:20:38,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952911292] [2024-12-02 07:20:38,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:20:38,940 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 07:20:38,940 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:20:38,941 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 07:20:38,941 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 07:20:38,941 INFO L87 Difference]: Start difference. First operand 89891 states and 130474 transitions. Second operand has 18 states, 18 states have (on average 7.833333333333333) internal successors, (141), 14 states have internal predecessors, (141), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 07:20:42,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:47,011 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:51,030 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:20:55,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 07:21:17,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:17,590 INFO L93 Difference]: Finished difference Result 211577 states and 307279 transitions. [2024-12-02 07:21:17,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2024-12-02 07:21:17,590 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 7.833333333333333) internal successors, (141), 14 states have internal predecessors, (141), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) Word has length 148 [2024-12-02 07:21:17,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:18,167 INFO L225 Difference]: With dead ends: 211577 [2024-12-02 07:21:18,167 INFO L226 Difference]: Without dead ends: 121653 [2024-12-02 07:21:18,471 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 286 SyntacticMatches, 8 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1791 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=747, Invalid=5105, Unknown=0, NotChecked=0, Total=5852 [2024-12-02 07:21:18,472 INFO L435 NwaCegarLoop]: 2094 mSDtfsCounter, 17447 mSDsluCounter, 22002 mSDsCounter, 0 mSdLazyCounter, 4543 mSolverCounterSat, 4755 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 29.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17468 SdHoareTripleChecker+Valid, 24096 SdHoareTripleChecker+Invalid, 9302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4755 IncrementalHoareTripleChecker+Valid, 4543 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:18,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17468 Valid, 24096 Invalid, 9302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4755 Valid, 4543 Invalid, 4 Unknown, 0 Unchecked, 31.3s Time] [2024-12-02 07:21:18,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121653 states. [2024-12-02 07:21:21,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121653 to 84241. [2024-12-02 07:21:21,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84241 states, 59996 states have (on average 1.3664410960730715) internal successors, (81981), 63415 states have internal predecessors, (81981), 19637 states have call successors, (19637), 4517 states have call predecessors, (19637), 4607 states have return successors, (20634), 19092 states have call predecessors, (20634), 19636 states have call successors, (20634) [2024-12-02 07:21:21,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84241 states to 84241 states and 122252 transitions. [2024-12-02 07:21:21,752 INFO L78 Accepts]: Start accepts. Automaton has 84241 states and 122252 transitions. Word has length 148 [2024-12-02 07:21:21,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:21,752 INFO L471 AbstractCegarLoop]: Abstraction has 84241 states and 122252 transitions. [2024-12-02 07:21:21,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 7.833333333333333) internal successors, (141), 14 states have internal predecessors, (141), 5 states have call successors, (29), 4 states have call predecessors, (29), 7 states have return successors, (23), 6 states have call predecessors, (23), 5 states have call successors, (23) [2024-12-02 07:21:21,753 INFO L276 IsEmpty]: Start isEmpty. Operand 84241 states and 122252 transitions. [2024-12-02 07:21:21,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-12-02 07:21:21,766 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:21,766 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:21,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-12-02 07:21:21,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-12-02 07:21:21,967 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:21,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:21,967 INFO L85 PathProgramCache]: Analyzing trace with hash -1314558699, now seen corresponding path program 1 times [2024-12-02 07:21:21,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:21,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959775373] [2024-12-02 07:21:21,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:21,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:22,812 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-12-02 07:21:22,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:22,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959775373] [2024-12-02 07:21:22,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959775373] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:22,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:22,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:21:22,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646976862] [2024-12-02 07:21:22,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:22,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:21:22,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:22,814 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:21:22,814 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:22,814 INFO L87 Difference]: Start difference. First operand 84241 states and 122252 transitions. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:21:25,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:25,270 INFO L93 Difference]: Finished difference Result 169135 states and 245999 transitions. [2024-12-02 07:21:25,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:21:25,270 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 307 [2024-12-02 07:21:25,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:25,642 INFO L225 Difference]: With dead ends: 169135 [2024-12-02 07:21:25,642 INFO L226 Difference]: Without dead ends: 84917 [2024-12-02 07:21:25,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:21:25,865 INFO L435 NwaCegarLoop]: 1855 mSDtfsCounter, 14 mSDsluCounter, 1851 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 3706 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:25,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 3706 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:21:25,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84917 states. [2024-12-02 07:21:28,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84917 to 84293. [2024-12-02 07:21:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84293 states, 60048 states have (on average 1.3661237676525446) internal successors, (82033), 63467 states have internal predecessors, (82033), 19637 states have call successors, (19637), 4517 states have call predecessors, (19637), 4607 states have return successors, (20634), 19092 states have call predecessors, (20634), 19636 states have call successors, (20634) [2024-12-02 07:21:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84293 states to 84293 states and 122304 transitions. [2024-12-02 07:21:28,718 INFO L78 Accepts]: Start accepts. Automaton has 84293 states and 122304 transitions. Word has length 307 [2024-12-02 07:21:28,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:28,718 INFO L471 AbstractCegarLoop]: Abstraction has 84293 states and 122304 transitions. [2024-12-02 07:21:28,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 2 states have call successors, (36), 2 states have call predecessors, (36), 2 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-12-02 07:21:28,718 INFO L276 IsEmpty]: Start isEmpty. Operand 84293 states and 122304 transitions. [2024-12-02 07:21:28,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2024-12-02 07:21:28,730 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:28,731 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:28,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 07:21:28,731 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:28,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:28,731 INFO L85 PathProgramCache]: Analyzing trace with hash -822847450, now seen corresponding path program 1 times [2024-12-02 07:21:28,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:28,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506252707] [2024-12-02 07:21:28,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:28,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:29,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 07:21:30,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:30,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506252707] [2024-12-02 07:21:30,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506252707] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:21:30,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735072674] [2024-12-02 07:21:30,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:30,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:21:30,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:21:30,258 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:21:30,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 07:21:32,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:32,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 5045 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 07:21:32,548 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:21:32,616 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2024-12-02 07:21:32,616 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:21:33,312 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2024-12-02 07:21:33,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735072674] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:21:33,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:21:33,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2024-12-02 07:21:33,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727189570] [2024-12-02 07:21:33,312 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:21:33,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:21:33,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:33,314 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:21:33,314 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:21:33,314 INFO L87 Difference]: Start difference. First operand 84293 states and 122304 transitions. Second operand has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2024-12-02 07:21:35,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:35,516 INFO L93 Difference]: Finished difference Result 169239 states and 246103 transitions. [2024-12-02 07:21:35,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:21:35,516 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) Word has length 320 [2024-12-02 07:21:35,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:35,919 INFO L225 Difference]: With dead ends: 169239 [2024-12-02 07:21:35,919 INFO L226 Difference]: Without dead ends: 84969 [2024-12-02 07:21:36,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 642 GetRequests, 638 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:21:36,175 INFO L435 NwaCegarLoop]: 1855 mSDtfsCounter, 26 mSDsluCounter, 3690 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5545 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:36,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5545 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:21:36,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84969 states. [2024-12-02 07:21:39,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84969 to 84969. [2024-12-02 07:21:39,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84969 states, 60672 states have (on average 1.3649294567510548) internal successors, (82813), 64091 states have internal predecessors, (82813), 19689 states have call successors, (19689), 4517 states have call predecessors, (19689), 4607 states have return successors, (20686), 19144 states have call predecessors, (20686), 19688 states have call successors, (20686) [2024-12-02 07:21:40,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84969 states to 84969 states and 123188 transitions. [2024-12-02 07:21:40,152 INFO L78 Accepts]: Start accepts. Automaton has 84969 states and 123188 transitions. Word has length 320 [2024-12-02 07:21:40,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:40,152 INFO L471 AbstractCegarLoop]: Abstraction has 84969 states and 123188 transitions. [2024-12-02 07:21:40,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.4) internal successors, (222), 5 states have internal predecessors, (222), 4 states have call successors, (53), 2 states have call predecessors, (53), 2 states have return successors, (48), 4 states have call predecessors, (48), 4 states have call successors, (48) [2024-12-02 07:21:40,152 INFO L276 IsEmpty]: Start isEmpty. Operand 84969 states and 123188 transitions. [2024-12-02 07:21:40,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2024-12-02 07:21:40,166 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:40,166 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:40,188 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-12-02 07:21:40,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 07:21:40,366 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:40,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash -667569995, now seen corresponding path program 2 times [2024-12-02 07:21:40,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:40,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77796332] [2024-12-02 07:21:40,367 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-12-02 07:21:40,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:41,161 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-12-02 07:21:41,162 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-12-02 07:21:41,636 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2024-12-02 07:21:41,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:41,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77796332] [2024-12-02 07:21:41,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77796332] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:41,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:41,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-02 07:21:41,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032257712] [2024-12-02 07:21:41,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:41,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-02 07:21:41,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:41,638 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-02 07:21:41,638 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:21:41,639 INFO L87 Difference]: Start difference. First operand 84969 states and 123188 transitions. Second operand has 6 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-12-02 07:21:44,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:44,257 INFO L93 Difference]: Finished difference Result 170049 states and 246877 transitions. [2024-12-02 07:21:44,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:21:44,258 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 333 [2024-12-02 07:21:44,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:44,675 INFO L225 Difference]: With dead ends: 170049 [2024-12-02 07:21:44,675 INFO L226 Difference]: Without dead ends: 85103 [2024-12-02 07:21:44,950 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:21:44,950 INFO L435 NwaCegarLoop]: 1855 mSDtfsCounter, 27 mSDsluCounter, 7394 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 9249 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:44,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 9249 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:21:45,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85103 states. [2024-12-02 07:21:47,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85103 to 84969. [2024-12-02 07:21:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84969 states, 60672 states have (on average 1.3627208597046414) internal successors, (82679), 64091 states have internal predecessors, (82679), 19689 states have call successors, (19689), 4517 states have call predecessors, (19689), 4607 states have return successors, (20686), 19144 states have call predecessors, (20686), 19688 states have call successors, (20686) [2024-12-02 07:21:47,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84969 states to 84969 states and 123054 transitions. [2024-12-02 07:21:47,855 INFO L78 Accepts]: Start accepts. Automaton has 84969 states and 123054 transitions. Word has length 333 [2024-12-02 07:21:47,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:47,856 INFO L471 AbstractCegarLoop]: Abstraction has 84969 states and 123054 transitions. [2024-12-02 07:21:47,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 36.4) internal successors, (182), 4 states have internal predecessors, (182), 3 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-12-02 07:21:47,856 INFO L276 IsEmpty]: Start isEmpty. Operand 84969 states and 123054 transitions. [2024-12-02 07:21:47,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2024-12-02 07:21:47,870 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:47,870 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:47,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 07:21:47,870 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:47,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:47,871 INFO L85 PathProgramCache]: Analyzing trace with hash 33449624, now seen corresponding path program 1 times [2024-12-02 07:21:47,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:47,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675319984] [2024-12-02 07:21:47,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:47,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:48,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:48,889 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-12-02 07:21:48,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:48,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675319984] [2024-12-02 07:21:48,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675319984] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:48,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:48,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:21:48,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967857954] [2024-12-02 07:21:48,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:48,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:21:48,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:48,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:21:48,891 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:21:48,891 INFO L87 Difference]: Start difference. First operand 84969 states and 123054 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 07:21:51,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:21:51,887 INFO L93 Difference]: Finished difference Result 170539 states and 247707 transitions. [2024-12-02 07:21:51,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:21:51,888 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 335 [2024-12-02 07:21:51,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:21:52,296 INFO L225 Difference]: With dead ends: 170539 [2024-12-02 07:21:52,296 INFO L226 Difference]: Without dead ends: 85593 [2024-12-02 07:21:52,528 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:21:52,529 INFO L435 NwaCegarLoop]: 1855 mSDtfsCounter, 3 mSDsluCounter, 3695 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 5550 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:21:52,529 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 5550 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:21:52,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85593 states. [2024-12-02 07:21:55,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85593 to 85073. [2024-12-02 07:21:55,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85073 states, 60776 states have (on average 1.362100171120179) internal successors, (82783), 64195 states have internal predecessors, (82783), 19689 states have call successors, (19689), 4517 states have call predecessors, (19689), 4607 states have return successors, (20686), 19144 states have call predecessors, (20686), 19688 states have call successors, (20686) [2024-12-02 07:21:56,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85073 states to 85073 states and 123158 transitions. [2024-12-02 07:21:56,144 INFO L78 Accepts]: Start accepts. Automaton has 85073 states and 123158 transitions. Word has length 335 [2024-12-02 07:21:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:21:56,144 INFO L471 AbstractCegarLoop]: Abstraction has 85073 states and 123158 transitions. [2024-12-02 07:21:56,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 4 states have internal predecessors, (186), 2 states have call successors, (37), 2 states have call predecessors, (37), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2024-12-02 07:21:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 85073 states and 123158 transitions. [2024-12-02 07:21:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-12-02 07:21:56,158 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:21:56,159 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:21:56,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 07:21:56,159 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:21:56,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:21:56,159 INFO L85 PathProgramCache]: Analyzing trace with hash -263775331, now seen corresponding path program 1 times [2024-12-02 07:21:56,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:21:56,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532088369] [2024-12-02 07:21:56,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:21:56,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:21:57,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:21:57,588 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 367 trivial. 0 not checked. [2024-12-02 07:21:57,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:21:57,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532088369] [2024-12-02 07:21:57,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532088369] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:21:57,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:21:57,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 07:21:57,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2973262] [2024-12-02 07:21:57,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:21:57,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:21:57,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:21:57,590 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:21:57,590 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:21:57,591 INFO L87 Difference]: Start difference. First operand 85073 states and 123158 transitions. Second operand has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-12-02 07:22:00,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:00,030 INFO L93 Difference]: Finished difference Result 170155 states and 246699 transitions. [2024-12-02 07:22:00,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:22:00,030 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 402 [2024-12-02 07:22:00,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:00,467 INFO L225 Difference]: With dead ends: 170155 [2024-12-02 07:22:00,467 INFO L226 Difference]: Without dead ends: 85105 [2024-12-02 07:22:00,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:22:00,733 INFO L435 NwaCegarLoop]: 1858 mSDtfsCounter, 7 mSDsluCounter, 5551 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7409 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:00,733 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7409 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:22:00,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85105 states. [2024-12-02 07:22:03,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85105 to 85105. [2024-12-02 07:22:03,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85105 states, 60816 states have (on average 1.3617304656669298) internal successors, (82815), 64235 states have internal predecessors, (82815), 19681 states have call successors, (19681), 4517 states have call predecessors, (19681), 4607 states have return successors, (20678), 19136 states have call predecessors, (20678), 19680 states have call successors, (20678) [2024-12-02 07:22:03,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85105 states to 85105 states and 123174 transitions. [2024-12-02 07:22:04,038 INFO L78 Accepts]: Start accepts. Automaton has 85105 states and 123174 transitions. Word has length 402 [2024-12-02 07:22:04,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:04,038 INFO L471 AbstractCegarLoop]: Abstraction has 85105 states and 123174 transitions. [2024-12-02 07:22:04,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 39.8) internal successors, (199), 5 states have internal predecessors, (199), 2 states have call successors, (43), 2 states have call predecessors, (43), 2 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2024-12-02 07:22:04,038 INFO L276 IsEmpty]: Start isEmpty. Operand 85105 states and 123174 transitions. [2024-12-02 07:22:04,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-12-02 07:22:04,056 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:04,056 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:04,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 07:22:04,056 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:04,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1273673803, now seen corresponding path program 1 times [2024-12-02 07:22:04,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:04,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482049454] [2024-12-02 07:22:04,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:04,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:05,482 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 355 trivial. 0 not checked. [2024-12-02 07:22:05,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:05,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482049454] [2024-12-02 07:22:05,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482049454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:05,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:05,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 07:22:05,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416284277] [2024-12-02 07:22:05,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:05,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 07:22:05,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:05,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 07:22:05,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:22:05,483 INFO L87 Difference]: Start difference. First operand 85105 states and 123174 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-12-02 07:22:07,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:07,546 INFO L93 Difference]: Finished difference Result 170359 states and 247087 transitions. [2024-12-02 07:22:07,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 07:22:07,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 412 [2024-12-02 07:22:07,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:08,052 INFO L225 Difference]: With dead ends: 170359 [2024-12-02 07:22:08,052 INFO L226 Difference]: Without dead ends: 85277 [2024-12-02 07:22:08,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 07:22:08,239 INFO L435 NwaCegarLoop]: 1856 mSDtfsCounter, 11 mSDsluCounter, 3681 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5537 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:08,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5537 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:22:08,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85277 states. [2024-12-02 07:22:10,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85277 to 85225. [2024-12-02 07:22:10,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85225 states, 60936 states have (on average 1.361018117369043) internal successors, (82935), 64355 states have internal predecessors, (82935), 19681 states have call successors, (19681), 4517 states have call predecessors, (19681), 4607 states have return successors, (20678), 19136 states have call predecessors, (20678), 19680 states have call successors, (20678) [2024-12-02 07:22:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85225 states to 85225 states and 123294 transitions. [2024-12-02 07:22:11,120 INFO L78 Accepts]: Start accepts. Automaton has 85225 states and 123294 transitions. Word has length 412 [2024-12-02 07:22:11,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:11,120 INFO L471 AbstractCegarLoop]: Abstraction has 85225 states and 123294 transitions. [2024-12-02 07:22:11,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 3 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-12-02 07:22:11,120 INFO L276 IsEmpty]: Start isEmpty. Operand 85225 states and 123294 transitions. [2024-12-02 07:22:11,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 648 [2024-12-02 07:22:11,134 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:11,134 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:11,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 07:22:11,135 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:11,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:11,135 INFO L85 PathProgramCache]: Analyzing trace with hash -1826159356, now seen corresponding path program 1 times [2024-12-02 07:22:11,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:11,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43753517] [2024-12-02 07:22:11,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:11,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:12,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 1070 trivial. 0 not checked. [2024-12-02 07:22:12,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43753517] [2024-12-02 07:22:12,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43753517] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:22:12,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343665270] [2024-12-02 07:22:12,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:12,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:12,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:12,111 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:22:12,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 07:22:15,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:15,089 INFO L256 TraceCheckSpWp]: Trace formula consists of 6819 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:22:15,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:15,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1088 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 871 trivial. 0 not checked. [2024-12-02 07:22:15,131 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343665270] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:15,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:22:15,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 3 [2024-12-02 07:22:15,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834561634] [2024-12-02 07:22:15,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:15,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:15,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:15,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:15,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:15,133 INFO L87 Difference]: Start difference. First operand 85225 states and 123294 transitions. Second operand has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2024-12-02 07:22:17,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:17,224 INFO L93 Difference]: Finished difference Result 170375 states and 247319 transitions. [2024-12-02 07:22:17,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:17,225 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) Word has length 647 [2024-12-02 07:22:17,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:17,690 INFO L225 Difference]: With dead ends: 170375 [2024-12-02 07:22:17,690 INFO L226 Difference]: Without dead ends: 85173 [2024-12-02 07:22:17,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 649 GetRequests, 648 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:17,955 INFO L435 NwaCegarLoop]: 1855 mSDtfsCounter, 0 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:17,956 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3703 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:22:18,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85173 states. [2024-12-02 07:22:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85173 to 85173. [2024-12-02 07:22:20,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85173 states, 60884 states have (on average 1.3604723736942381) internal successors, (82831), 64303 states have internal predecessors, (82831), 19681 states have call successors, (19681), 4517 states have call predecessors, (19681), 4607 states have return successors, (20678), 19136 states have call predecessors, (20678), 19680 states have call successors, (20678) [2024-12-02 07:22:20,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85173 states to 85173 states and 123190 transitions. [2024-12-02 07:22:20,936 INFO L78 Accepts]: Start accepts. Automaton has 85173 states and 123190 transitions. Word has length 647 [2024-12-02 07:22:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:20,936 INFO L471 AbstractCegarLoop]: Abstraction has 85173 states and 123190 transitions. [2024-12-02 07:22:20,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.0) internal successors, (291), 3 states have internal predecessors, (291), 2 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (67), 2 states have call predecessors, (67), 2 states have call successors, (67) [2024-12-02 07:22:20,936 INFO L276 IsEmpty]: Start isEmpty. Operand 85173 states and 123190 transitions. [2024-12-02 07:22:20,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2024-12-02 07:22:20,952 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:20,952 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:20,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-12-02 07:22:21,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-12-02 07:22:21,153 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:21,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:21,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1273409607, now seen corresponding path program 1 times [2024-12-02 07:22:21,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:21,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343434240] [2024-12-02 07:22:21,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:21,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:22,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:22,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 15 proven. 12 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2024-12-02 07:22:22,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:22,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343434240] [2024-12-02 07:22:22,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343434240] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:22:22,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017436532] [2024-12-02 07:22:22,786 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:22,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:22,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:22,788 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:22:22,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 07:22:25,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:25,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 6823 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:22:25,375 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:25,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1105 backedges. 210 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2024-12-02 07:22:25,413 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:25,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017436532] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:25,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:22:25,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-12-02 07:22:25,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198144163] [2024-12-02 07:22:25,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:25,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:25,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:25,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:25,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:25,415 INFO L87 Difference]: Start difference. First operand 85173 states and 123190 transitions. Second operand has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 07:22:27,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:27,483 INFO L93 Difference]: Finished difference Result 170383 states and 247059 transitions. [2024-12-02 07:22:27,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:27,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 650 [2024-12-02 07:22:27,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:27,910 INFO L225 Difference]: With dead ends: 170383 [2024-12-02 07:22:27,910 INFO L226 Difference]: Without dead ends: 85233 [2024-12-02 07:22:28,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:28,126 INFO L435 NwaCegarLoop]: 1855 mSDtfsCounter, 0 mSDsluCounter, 1848 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:28,126 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3703 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 07:22:28,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85233 states. [2024-12-02 07:22:30,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85233 to 85233. [2024-12-02 07:22:30,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85233 states, 60944 states have (on average 1.3601174849041744) internal successors, (82891), 64363 states have internal predecessors, (82891), 19681 states have call successors, (19681), 4517 states have call predecessors, (19681), 4607 states have return successors, (20678), 19136 states have call predecessors, (20678), 19680 states have call successors, (20678) [2024-12-02 07:22:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85233 states to 85233 states and 123250 transitions. [2024-12-02 07:22:31,316 INFO L78 Accepts]: Start accepts. Automaton has 85233 states and 123250 transitions. Word has length 650 [2024-12-02 07:22:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:31,316 INFO L471 AbstractCegarLoop]: Abstraction has 85233 states and 123250 transitions. [2024-12-02 07:22:31,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.0) internal successors, (279), 3 states have internal predecessors, (279), 2 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 07:22:31,317 INFO L276 IsEmpty]: Start isEmpty. Operand 85233 states and 123250 transitions. [2024-12-02 07:22:31,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 639 [2024-12-02 07:22:31,339 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:31,340 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:31,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-12-02 07:22:31,540 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:31,540 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:31,541 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:31,541 INFO L85 PathProgramCache]: Analyzing trace with hash -677188211, now seen corresponding path program 1 times [2024-12-02 07:22:31,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:31,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519720999] [2024-12-02 07:22:31,541 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:31,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:32,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:33,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 8 proven. 12 refuted. 0 times theorem prover too weak. 1073 trivial. 0 not checked. [2024-12-02 07:22:33,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:33,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519720999] [2024-12-02 07:22:33,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519720999] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:22:33,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849484470] [2024-12-02 07:22:33,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:33,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:33,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:22:33,098 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:22:33,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-12-02 07:22:35,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:35,906 INFO L256 TraceCheckSpWp]: Trace formula consists of 6722 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 07:22:35,914 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:22:36,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1093 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 873 trivial. 0 not checked. [2024-12-02 07:22:36,047 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 07:22:36,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849484470] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:36,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 07:22:36,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 6 [2024-12-02 07:22:36,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103278348] [2024-12-02 07:22:36,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:36,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 07:22:36,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:36,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:22:36,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 07:22:36,048 INFO L87 Difference]: Start difference. First operand 85233 states and 123250 transitions. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 4 states have call successors, (72), 2 states have call predecessors, (72), 3 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) [2024-12-02 07:22:38,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:38,528 INFO L93 Difference]: Finished difference Result 170703 states and 247663 transitions. [2024-12-02 07:22:38,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:22:38,529 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 4 states have call successors, (72), 2 states have call predecessors, (72), 3 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) Word has length 638 [2024-12-02 07:22:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:38,961 INFO L225 Difference]: With dead ends: 170703 [2024-12-02 07:22:38,961 INFO L226 Difference]: Without dead ends: 84328 [2024-12-02 07:22:39,182 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 644 GetRequests, 638 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-12-02 07:22:39,183 INFO L435 NwaCegarLoop]: 1851 mSDtfsCounter, 55 mSDsluCounter, 5421 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 7272 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:39,183 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 7272 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:22:39,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84328 states. [2024-12-02 07:22:41,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84328 to 84328. [2024-12-02 07:22:41,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84328 states, 60618 states have (on average 1.3594806823055858) internal successors, (82409), 64037 states have internal predecessors, (82409), 19109 states have call successors, (19109), 4510 states have call predecessors, (19109), 4600 states have return successors, (20106), 18564 states have call predecessors, (20106), 19108 states have call successors, (20106) [2024-12-02 07:22:42,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84328 states to 84328 states and 121624 transitions. [2024-12-02 07:22:42,363 INFO L78 Accepts]: Start accepts. Automaton has 84328 states and 121624 transitions. Word has length 638 [2024-12-02 07:22:42,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:42,364 INFO L471 AbstractCegarLoop]: Abstraction has 84328 states and 121624 transitions. [2024-12-02 07:22:42,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 4 states have call successors, (72), 2 states have call predecessors, (72), 3 states have return successors, (67), 4 states have call predecessors, (67), 4 states have call successors, (67) [2024-12-02 07:22:42,364 INFO L276 IsEmpty]: Start isEmpty. Operand 84328 states and 121624 transitions. [2024-12-02 07:22:42,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-12-02 07:22:42,385 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:42,386 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:42,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-12-02 07:22:42,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ff01b1-cf80-4754-a5c7-f66f5c2164b7/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:22:42,586 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:42,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:42,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1372590695, now seen corresponding path program 1 times [2024-12-02 07:22:42,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:42,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282458465] [2024-12-02 07:22:42,587 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:42,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:43,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:44,459 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1401 trivial. 0 not checked. [2024-12-02 07:22:44,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:44,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282458465] [2024-12-02 07:22:44,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282458465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:44,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:44,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:22:44,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484447722] [2024-12-02 07:22:44,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:44,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:44,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:44,460 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:44,460 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:44,461 INFO L87 Difference]: Start difference. First operand 84328 states and 121624 transitions. Second operand has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 07:22:47,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:47,284 INFO L93 Difference]: Finished difference Result 182837 states and 266864 transitions. [2024-12-02 07:22:47,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:47,284 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) Word has length 700 [2024-12-02 07:22:47,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:47,979 INFO L225 Difference]: With dead ends: 182837 [2024-12-02 07:22:47,979 INFO L226 Difference]: Without dead ends: 98532 [2024-12-02 07:22:48,175 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:48,175 INFO L435 NwaCegarLoop]: 1954 mSDtfsCounter, 213 mSDsluCounter, 1805 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 3759 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:48,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 3759 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 07:22:48,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98532 states. [2024-12-02 07:22:51,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98532 to 98331. [2024-12-02 07:22:51,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98331 states, 70534 states have (on average 1.3754359599625712) internal successors, (97015), 75561 states have internal predecessors, (97015), 23196 states have call successors, (23196), 4510 states have call predecessors, (23196), 4600 states have return successors, (24193), 22383 states have call predecessors, (24193), 23195 states have call successors, (24193) [2024-12-02 07:22:51,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98331 states to 98331 states and 144404 transitions. [2024-12-02 07:22:51,601 INFO L78 Accepts]: Start accepts. Automaton has 98331 states and 144404 transitions. Word has length 700 [2024-12-02 07:22:51,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 07:22:51,602 INFO L471 AbstractCegarLoop]: Abstraction has 98331 states and 144404 transitions. [2024-12-02 07:22:51,602 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.0) internal successors, (255), 3 states have internal predecessors, (255), 2 states have call successors, (70), 2 states have call predecessors, (70), 1 states have return successors, (65), 2 states have call predecessors, (65), 2 states have call successors, (65) [2024-12-02 07:22:51,602 INFO L276 IsEmpty]: Start isEmpty. Operand 98331 states and 144404 transitions. [2024-12-02 07:22:51,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 719 [2024-12-02 07:22:51,615 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 07:22:51,615 INFO L218 NwaCegarLoop]: trace histogram [19, 19, 11, 11, 11, 11, 11, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:22:51,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-12-02 07:22:51,615 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 07:22:51,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:22:51,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1659029158, now seen corresponding path program 1 times [2024-12-02 07:22:51,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 07:22:51,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036408170] [2024-12-02 07:22:51,616 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:22:51,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:22:52,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:22:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1413 trivial. 0 not checked. [2024-12-02 07:22:53,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 07:22:53,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036408170] [2024-12-02 07:22:53,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036408170] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 07:22:53,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 07:22:53,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 07:22:53,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331070713] [2024-12-02 07:22:53,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 07:22:53,041 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 07:22:53,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 07:22:53,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 07:22:53,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:53,042 INFO L87 Difference]: Start difference. First operand 98331 states and 144404 transitions. Second operand has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) [2024-12-02 07:22:56,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:22:56,735 INFO L93 Difference]: Finished difference Result 210910 states and 312491 transitions. [2024-12-02 07:22:56,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 07:22:56,736 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.66666666666667) internal successors, (266), 3 states have internal predecessors, (266), 2 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (66), 2 states have call predecessors, (66), 2 states have call successors, (66) Word has length 718 [2024-12-02 07:22:56,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 07:22:57,327 INFO L225 Difference]: With dead ends: 210910 [2024-12-02 07:22:57,327 INFO L226 Difference]: Without dead ends: 112602 [2024-12-02 07:22:57,834 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 07:22:57,834 INFO L435 NwaCegarLoop]: 1958 mSDtfsCounter, 226 mSDsluCounter, 1807 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 3765 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 07:22:57,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 3765 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 07:22:57,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112602 states.