./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--net--fddi--defxx.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_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/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_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/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--net--fddi--defxx.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/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_e3024e10-cc6c-4af1-99f4-6561d8a482fb/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 e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 11:37:55,175 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 11:37:55,232 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 11:37:55,236 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 11:37:55,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 11:37:55,258 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 11:37:55,259 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 11:37:55,259 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 11:37:55,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 11:37:55,259 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 11:37:55,259 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 11:37:55,259 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 11:37:55,260 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 11:37:55,260 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 11:37:55,260 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 11:37:55,261 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:55,261 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 11:37:55,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:37:55,262 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 11:37:55,262 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 11:37:55,262 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_e3024e10-cc6c-4af1-99f4-6561d8a482fb/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 -> e8e67529e4f1862dffb4b20b34b9723f96164119a4ebff5a58d56eaf6134a8d1 [2024-12-02 11:37:55,488 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 11:37:55,496 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 11:37:55,498 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 11:37:55,499 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 11:37:55,500 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 11:37:55,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2024-12-02 11:37:58,217 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/data/d75b4ade6/66898efcbdf042a5a8fb6e236e83ab76/FLAGfa977caf8 [2024-12-02 11:37:58,609 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 11:37:58,610 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2024-12-02 11:37:58,638 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/data/d75b4ade6/66898efcbdf042a5a8fb6e236e83ab76/FLAGfa977caf8 [2024-12-02 11:37:58,650 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/data/d75b4ade6/66898efcbdf042a5a8fb6e236e83ab76 [2024-12-02 11:37:58,652 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 11:37:58,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 11:37:58,654 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 11:37:58,654 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 11:37:58,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 11:37:58,658 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:58" (1/1) ... [2024-12-02 11:37:58,659 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@eb13ebc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:37:58, skipping insertion in model container [2024-12-02 11:37:58,659 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 11:37:58" (1/1) ... [2024-12-02 11:37:58,729 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 11:37:59,866 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_e3024e10-cc6c-4af1-99f4-6561d8a482fb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2024-12-02 11:37:59,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:37:59,935 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 11:38:00,049 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 %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr): "memory"); [6250] [2024-12-02 11:38:00,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; btr %1,%0": "+m" (*((long volatile *)addr)): "Ir" (nr)); [6257] [2024-12-02 11:38:00,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [6402] [2024-12-02 11:38:00,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [6409] [2024-12-02 11:38:00,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [6418] [2024-12-02 11:38:00,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [6426] [2024-12-02 11:38:00,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [6433] [2024-12-02 11:38:00,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [6441] [2024-12-02 11:38:00,063 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (19), "i" (12UL)); [6556-6557] [2024-12-02 11:38:00,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (36), "i" (12UL)); [6585-6586] [2024-12-02 11:38:00,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6615-6616] [2024-12-02 11:38:00,081 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6897] [2024-12-02 11:38:00,083 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("mfence": : : "memory"); [6928] [2024-12-02 11:38:00,200 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_e3024e10-cc6c-4af1-99f4-6561d8a482fb/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i[283284,283297] [2024-12-02 11:38:00,208 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 11:38:00,303 INFO L204 MainTranslator]: Completed translation [2024-12-02 11:38:00,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00 WrapperNode [2024-12-02 11:38:00,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 11:38:00,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 11:38:00,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 11:38:00,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 11:38:00,310 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:00,353 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:00,449 INFO L138 Inliner]: procedures = 215, calls = 1747, calls flagged for inlining = 108, calls inlined = 105, statements flattened = 3426 [2024-12-02 11:38:00,450 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 11:38:00,451 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 11:38:00,451 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 11:38:00,451 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 11:38:00,460 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:00,461 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:00,482 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,024 INFO L175 MemorySlicer]: Split 1153 memory accesses to 16 slices as follows [2, 43, 843, 36, 5, 4, 58, 18, 5, 4, 45, 20, 6, 28, 17, 19]. 73 percent of accesses are in the largest equivalence class. The 100 initializations are split as follows [2, 0, 20, 0, 5, 4, 0, 18, 5, 4, 0, 0, 6, 0, 17, 19]. The 477 writes are split as follows [0, 43, 329, 10, 0, 0, 58, 0, 0, 0, 22, 3, 0, 12, 0, 0]. [2024-12-02 11:38:01,025 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,025 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,123 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,130 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,149 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,182 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,210 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 11:38:01,211 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 11:38:01,211 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 11:38:01,211 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 11:38:01,212 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (1/1) ... [2024-12-02 11:38:01,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 11:38:01,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:38:01,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 11:38:01,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 11:38:01,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#14 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#15 [2024-12-02 11:38:01,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#14 [2024-12-02 11:38:01,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#15 [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-02 11:38:01,263 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-12-02 11:38:01,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#5 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#6 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#7 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#8 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#9 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#10 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#11 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#12 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#13 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#14 [2024-12-02 11:38:01,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#15 [2024-12-02 11:38:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-12-02 11:38:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-12-02 11:38:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-12-02 11:38:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-12-02 11:38:01,265 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#5 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#6 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#7 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#8 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#9 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#10 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#11 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#12 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#13 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#14 [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#15 [2024-12-02 11:38:01,266 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 11:38:01,266 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 11:38:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2024-12-02 11:38:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 11:38:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_read_long [2024-12-02 11:38:01,267 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_read_long [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 11:38:01,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-12-02 11:38:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-12-02 11:38:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-12-02 11:38:01,268 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-12-02 11:38:01,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_adap_init [2024-12-02 11:38:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_adap_init [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 11:38:01,269 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 11:38:01,269 INFO L130 BoogieDeclarations]: Found specification of procedure dma_mapping_error [2024-12-02 11:38:01,270 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_mapping_error [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#0 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#1 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#2 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#3 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#4 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#5 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#6 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#7 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#8 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#9 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#10 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#11 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#12 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#13 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#14 [2024-12-02 11:38:01,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memmove#15 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#0 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#1 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#2 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#3 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#4 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#5 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#6 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#7 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#8 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#9 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#10 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#11 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#12 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#13 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#14 [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memmove#15 [2024-12-02 11:38:01,271 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_int_common [2024-12-02 11:38:01,271 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_int_common [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 11:38:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-12-02 11:38:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 11:38:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_rcv_flush [2024-12-02 11:38:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_rcv_flush [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_get_stats [2024-12-02 11:38:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_get_stats [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-12-02 11:38:01,272 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-12-02 11:38:01,272 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_cam [2024-12-02 11:38:01,273 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_cam [2024-12-02 11:38:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 11:38:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 11:38:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 11:38:01,273 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#14 [2024-12-02 11:38:01,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#15 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_cmd_req [2024-12-02 11:38:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_cmd_req [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_dma_uninit [2024-12-02 11:38:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_dma_uninit [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 11:38:01,275 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 11:38:01,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#14 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#15 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-12-02 11:38:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure dma_sync_single_for_cpu [2024-12-02 11:38:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_sync_single_for_cpu [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2024-12-02 11:38:01,276 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 11:38:01,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure my_skb_align [2024-12-02 11:38:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure my_skb_align [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 11:38:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-02 11:38:01,277 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 11:38:01,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 11:38:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 11:38:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 11:38:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 11:38:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 11:38:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#14 [2024-12-02 11:38:01,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#15 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 11:38:01,278 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 11:38:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#14 [2024-12-02 11:38:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#15 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_port_write_long [2024-12-02 11:38:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_port_write_long [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 11:38:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-12-02 11:38:01,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 11:38:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-12-02 11:38:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-12-02 11:38:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure skb_pull [2024-12-02 11:38:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_pull [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 11:38:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-12-02 11:38:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 11:38:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2024-12-02 11:38:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2024-12-02 11:38:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_port_ctrl_req [2024-12-02 11:38:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_port_ctrl_req [2024-12-02 11:38:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 11:38:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_xmt_flush [2024-12-02 11:38:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_xmt_flush [2024-12-02 11:38:01,281 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 11:38:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_update_filters [2024-12-02 11:38:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_update_filters [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-12-02 11:38:01,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-12-02 11:38:01,282 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_mac_address [2024-12-02 11:38:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_mac_address [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_ctl_set_multicast_list [2024-12-02 11:38:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_ctl_set_multicast_list [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_hw_adap_state_rd [2024-12-02 11:38:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_hw_adap_state_rd [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-12-02 11:38:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-12-02 11:38:01,283 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 11:38:01,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure dfx_get_bars [2024-12-02 11:38:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure dfx_get_bars [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2024-12-02 11:38:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2024-12-02 11:38:01,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 11:38:01,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 11:38:01,993 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 11:38:01,996 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 11:38:02,438 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 11:38:28,853 INFO L? ?]: Removed 2225 outVars from TransFormulas that were not future-live. [2024-12-02 11:38:28,853 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 11:38:28,883 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 11:38:28,883 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 11:38:28,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:28 BoogieIcfgContainer [2024-12-02 11:38:28,884 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 11:38:28,886 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 11:38:28,886 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 11:38:28,891 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 11:38:28,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 11:37:58" (1/3) ... [2024-12-02 11:38:28,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467c022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:38:28, skipping insertion in model container [2024-12-02 11:38:28,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 11:38:00" (2/3) ... [2024-12-02 11:38:28,892 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467c022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 11:38:28, skipping insertion in model container [2024-12-02 11:38:28,892 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 11:38:28" (3/3) ... [2024-12-02 11:38:28,893 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i [2024-12-02 11:38:28,908 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 11:38:28,911 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--fddi--defxx.ko-entry_point.cil.out.i that has 107 procedures, 1518 locations, 1 initial locations, 80 loop locations, and 1 error locations. [2024-12-02 11:38:28,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 11:38:28,999 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;@4c083c2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 11:38:28,999 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 11:38:29,007 INFO L276 IsEmpty]: Start isEmpty. Operand has 1307 states, 923 states have (on average 1.3282773564463706) internal successors, (1226), 944 states have internal predecessors, (1226), 322 states have call successors, (322), 61 states have call predecessors, (322), 60 states have return successors, (316), 316 states have call predecessors, (316), 316 states have call successors, (316) [2024-12-02 11:38:29,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-12-02 11:38:29,036 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:29,037 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 11:38:29,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:29,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:29,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1613709739, now seen corresponding path program 1 times [2024-12-02 11:38:29,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:29,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129051430] [2024-12-02 11:38:29,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:29,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:32,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:33,682 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:38:33,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:33,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129051430] [2024-12-02 11:38:33,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129051430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:33,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:33,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:38:33,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410247945] [2024-12-02 11:38:33,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:33,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:38:33,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:33,705 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:38:33,705 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:38:33,709 INFO L87 Difference]: Start difference. First operand has 1307 states, 923 states have (on average 1.3282773564463706) internal successors, (1226), 944 states have internal predecessors, (1226), 322 states have call successors, (322), 61 states have call predecessors, (322), 60 states have return successors, (316), 316 states have call predecessors, (316), 316 states have call successors, (316) Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:38:34,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:34,274 INFO L93 Difference]: Finished difference Result 3908 states and 5661 transitions. [2024-12-02 11:38:34,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:38:34,276 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 153 [2024-12-02 11:38:34,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:34,302 INFO L225 Difference]: With dead ends: 3908 [2024-12-02 11:38:34,302 INFO L226 Difference]: Without dead ends: 2564 [2024-12-02 11:38:34,312 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:38:34,314 INFO L435 NwaCegarLoop]: 1868 mSDtfsCounter, 1838 mSDsluCounter, 5561 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 7429 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:34,314 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 7429 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:38:34,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2564 states. [2024-12-02 11:38:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2564 to 2555. [2024-12-02 11:38:34,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2555 states, 1807 states have (on average 1.3126729385722191) internal successors, (2372), 1837 states have internal predecessors, (2372), 628 states have call successors, (628), 120 states have call predecessors, (628), 119 states have return successors, (629), 623 states have call predecessors, (629), 627 states have call successors, (629) [2024-12-02 11:38:34,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2555 states to 2555 states and 3629 transitions. [2024-12-02 11:38:34,485 INFO L78 Accepts]: Start accepts. Automaton has 2555 states and 3629 transitions. Word has length 153 [2024-12-02 11:38:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:34,486 INFO L471 AbstractCegarLoop]: Abstraction has 2555 states and 3629 transitions. [2024-12-02 11:38:34,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2024-12-02 11:38:34,487 INFO L276 IsEmpty]: Start isEmpty. Operand 2555 states and 3629 transitions. [2024-12-02 11:38:34,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2024-12-02 11:38:34,500 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:34,500 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 11:38:34,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 11:38:34,500 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:34,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:34,501 INFO L85 PathProgramCache]: Analyzing trace with hash -729617572, now seen corresponding path program 1 times [2024-12-02 11:38:34,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:34,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550809497] [2024-12-02 11:38:34,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:34,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:37,978 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:38:37,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:37,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550809497] [2024-12-02 11:38:37,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550809497] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:37,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:37,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:38:37,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531761017] [2024-12-02 11:38:37,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:37,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:38:37,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:37,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:38:37,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:38:37,981 INFO L87 Difference]: Start difference. First operand 2555 states and 3629 transitions. Second operand has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:38:38,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:38,486 INFO L93 Difference]: Finished difference Result 7660 states and 10885 transitions. [2024-12-02 11:38:38,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:38:38,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 161 [2024-12-02 11:38:38,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:38,510 INFO L225 Difference]: With dead ends: 7660 [2024-12-02 11:38:38,510 INFO L226 Difference]: Without dead ends: 5114 [2024-12-02 11:38:38,521 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:38:38,521 INFO L435 NwaCegarLoop]: 2014 mSDtfsCounter, 1810 mSDsluCounter, 5822 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1811 SdHoareTripleChecker+Valid, 7836 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:38,521 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1811 Valid, 7836 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:38:38,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2024-12-02 11:38:38,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 5101. [2024-12-02 11:38:38,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5101 states, 3610 states have (on average 1.3119113573407202) internal successors, (4736), 3669 states have internal predecessors, (4736), 1251 states have call successors, (1251), 240 states have call predecessors, (1251), 239 states have return successors, (1258), 1243 states have call predecessors, (1258), 1250 states have call successors, (1258) [2024-12-02 11:38:38,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5101 states to 5101 states and 7245 transitions. [2024-12-02 11:38:38,691 INFO L78 Accepts]: Start accepts. Automaton has 5101 states and 7245 transitions. Word has length 161 [2024-12-02 11:38:38,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:38,691 INFO L471 AbstractCegarLoop]: Abstraction has 5101 states and 7245 transitions. [2024-12-02 11:38:38,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.4) internal successors, (92), 4 states have internal predecessors, (92), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:38:38,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5101 states and 7245 transitions. [2024-12-02 11:38:38,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-12-02 11:38:38,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:38,700 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 11:38:38,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 11:38:38,701 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:38,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:38,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1841864482, now seen corresponding path program 1 times [2024-12-02 11:38:38,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:38,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853022507] [2024-12-02 11:38:38,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:38,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:41,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:42,242 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:38:42,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:42,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853022507] [2024-12-02 11:38:42,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853022507] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:42,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:42,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:38:42,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345749471] [2024-12-02 11:38:42,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:42,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:38:42,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:42,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:38:42,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:38:42,244 INFO L87 Difference]: Start difference. First operand 5101 states and 7245 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:38:43,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:43,012 INFO L93 Difference]: Finished difference Result 15310 states and 21754 transitions. [2024-12-02 11:38:43,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:38:43,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 160 [2024-12-02 11:38:43,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:43,078 INFO L225 Difference]: With dead ends: 15310 [2024-12-02 11:38:43,078 INFO L226 Difference]: Without dead ends: 10218 [2024-12-02 11:38:43,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:38:43,106 INFO L435 NwaCegarLoop]: 2014 mSDtfsCounter, 1809 mSDsluCounter, 5822 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 7836 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:43,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 7836 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:38:43,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10218 states. [2024-12-02 11:38:43,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10218 to 10195. [2024-12-02 11:38:43,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10195 states, 7218 states have (on average 1.3108894430590192) internal successors, (9462), 7334 states have internal predecessors, (9462), 2496 states have call successors, (2496), 481 states have call predecessors, (2496), 480 states have return successors, (2519), 2483 states have call predecessors, (2519), 2495 states have call successors, (2519) [2024-12-02 11:38:43,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10195 states to 10195 states and 14477 transitions. [2024-12-02 11:38:43,651 INFO L78 Accepts]: Start accepts. Automaton has 10195 states and 14477 transitions. Word has length 160 [2024-12-02 11:38:43,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:43,652 INFO L471 AbstractCegarLoop]: Abstraction has 10195 states and 14477 transitions. [2024-12-02 11:38:43,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:38:43,652 INFO L276 IsEmpty]: Start isEmpty. Operand 10195 states and 14477 transitions. [2024-12-02 11:38:43,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-12-02 11:38:43,666 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:43,666 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 11:38:43,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 11:38:43,666 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:43,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:43,667 INFO L85 PathProgramCache]: Analyzing trace with hash 111912073, now seen corresponding path program 1 times [2024-12-02 11:38:43,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:43,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743118144] [2024-12-02 11:38:43,667 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:43,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:47,350 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:38:47,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:47,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743118144] [2024-12-02 11:38:47,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743118144] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:47,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:38:47,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:38:47,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144753934] [2024-12-02 11:38:47,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:47,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:38:47,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:47,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:38:47,352 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:38:47,352 INFO L87 Difference]: Start difference. First operand 10195 states and 14477 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:38:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:48,094 INFO L93 Difference]: Finished difference Result 30355 states and 43102 transitions. [2024-12-02 11:38:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 11:38:48,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) Word has length 158 [2024-12-02 11:38:48,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:48,189 INFO L225 Difference]: With dead ends: 30355 [2024-12-02 11:38:48,189 INFO L226 Difference]: Without dead ends: 20169 [2024-12-02 11:38:48,225 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-12-02 11:38:48,226 INFO L435 NwaCegarLoop]: 1822 mSDtfsCounter, 1812 mSDsluCounter, 5438 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 7260 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 11:38:48,226 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 7260 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 11:38:48,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20169 states. [2024-12-02 11:38:48,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20169 to 20127. [2024-12-02 11:38:48,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20127 states, 14259 states have (on average 1.309629006241672) internal successors, (18674), 14483 states have internal predecessors, (18674), 4909 states have call successors, (4909), 959 states have call predecessors, (4909), 958 states have return successors, (4972), 4888 states have call predecessors, (4972), 4908 states have call successors, (4972) [2024-12-02 11:38:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20127 states to 20127 states and 28555 transitions. [2024-12-02 11:38:48,903 INFO L78 Accepts]: Start accepts. Automaton has 20127 states and 28555 transitions. Word has length 158 [2024-12-02 11:38:48,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:48,903 INFO L471 AbstractCegarLoop]: Abstraction has 20127 states and 28555 transitions. [2024-12-02 11:38:48,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (17), 3 states have call predecessors, (17), 3 states have call successors, (17) [2024-12-02 11:38:48,904 INFO L276 IsEmpty]: Start isEmpty. Operand 20127 states and 28555 transitions. [2024-12-02 11:38:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-12-02 11:38:48,913 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:48,913 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, 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] [2024-12-02 11:38:48,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 11:38:48,913 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:48,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:48,914 INFO L85 PathProgramCache]: Analyzing trace with hash -625590872, now seen corresponding path program 1 times [2024-12-02 11:38:48,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:48,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566732354] [2024-12-02 11:38:48,914 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:48,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:38:51,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:52,683 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 11:38:52,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:38:52,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566732354] [2024-12-02 11:38:52,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566732354] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:38:52,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378879616] [2024-12-02 11:38:52,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:52,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:38:52,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:38:52,686 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:38:52,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 11:38:56,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:38:56,488 INFO L256 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:38:56,496 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:38:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 11:38:56,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:38:56,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378879616] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:38:56,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:38:56,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 11:38:56,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776591706] [2024-12-02 11:38:56,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:38:56,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:38:56,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:38:56,606 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:38:56,606 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:38:56,606 INFO L87 Difference]: Start difference. First operand 20127 states and 28555 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:38:56,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:38:56,906 INFO L93 Difference]: Finished difference Result 20146 states and 28589 transitions. [2024-12-02 11:38:56,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:38:56,906 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) Word has length 171 [2024-12-02 11:38:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:38:56,981 INFO L225 Difference]: With dead ends: 20146 [2024-12-02 11:38:56,981 INFO L226 Difference]: Without dead ends: 20143 [2024-12-02 11:38:56,991 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:38:56,992 INFO L435 NwaCegarLoop]: 1824 mSDtfsCounter, 0 mSDsluCounter, 1819 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3643 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 11:38:56,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3643 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:38:57,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20143 states. [2024-12-02 11:38:57,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20143 to 20143. [2024-12-02 11:38:57,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20143 states, 14275 states have (on average 1.3092819614711033) internal successors, (18690), 14499 states have internal predecessors, (18690), 4909 states have call successors, (4909), 959 states have call predecessors, (4909), 958 states have return successors, (4972), 4888 states have call predecessors, (4972), 4908 states have call successors, (4972) [2024-12-02 11:38:57,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20143 states to 20143 states and 28571 transitions. [2024-12-02 11:38:57,634 INFO L78 Accepts]: Start accepts. Automaton has 20143 states and 28571 transitions. Word has length 171 [2024-12-02 11:38:57,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:38:57,634 INFO L471 AbstractCegarLoop]: Abstraction has 20143 states and 28571 transitions. [2024-12-02 11:38:57,635 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (18), 1 states have call predecessors, (18), 1 states have call successors, (18) [2024-12-02 11:38:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 20143 states and 28571 transitions. [2024-12-02 11:38:57,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 11:38:57,648 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:38:57,649 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, 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] [2024-12-02 11:38:57,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 11:38:57,849 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:38:57,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:38:57,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:38:57,850 INFO L85 PathProgramCache]: Analyzing trace with hash -401985139, now seen corresponding path program 1 times [2024-12-02 11:38:57,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:38:57,850 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439611440] [2024-12-02 11:38:57,850 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:38:57,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:00,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:01,809 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 11:39:01,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:01,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439611440] [2024-12-02 11:39:01,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439611440] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:01,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [459425828] [2024-12-02 11:39:01,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:01,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:01,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:01,811 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:01,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 11:39:05,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:05,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 3093 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:39:05,705 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:05,811 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-12-02 11:39:05,811 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:39:05,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [459425828] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:05,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:39:05,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-12-02 11:39:05,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861705477] [2024-12-02 11:39:05,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:05,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:05,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:05,813 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:05,813 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:39:05,813 INFO L87 Difference]: Start difference. First operand 20143 states and 28571 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:06,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:06,382 INFO L93 Difference]: Finished difference Result 40245 states and 58141 transitions. [2024-12-02 11:39:06,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:06,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-12-02 11:39:06,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:06,455 INFO L225 Difference]: With dead ends: 40245 [2024-12-02 11:39:06,455 INFO L226 Difference]: Without dead ends: 20111 [2024-12-02 11:39:06,548 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-12-02 11:39:06,549 INFO L435 NwaCegarLoop]: 1821 mSDtfsCounter, 0 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:06,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3641 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20111 states. [2024-12-02 11:39:07,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20111 to 20111. [2024-12-02 11:39:07,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20111 states, 14243 states have (on average 1.308853471880924) internal successors, (18642), 14467 states have internal predecessors, (18642), 4909 states have call successors, (4909), 959 states have call predecessors, (4909), 958 states have return successors, (4972), 4888 states have call predecessors, (4972), 4908 states have call successors, (4972) [2024-12-02 11:39:07,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20111 states to 20111 states and 28523 transitions. [2024-12-02 11:39:07,329 INFO L78 Accepts]: Start accepts. Automaton has 20111 states and 28523 transitions. Word has length 173 [2024-12-02 11:39:07,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:07,330 INFO L471 AbstractCegarLoop]: Abstraction has 20111 states and 28523 transitions. [2024-12-02 11:39:07,330 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (18), 2 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:07,330 INFO L276 IsEmpty]: Start isEmpty. Operand 20111 states and 28523 transitions. [2024-12-02 11:39:07,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-12-02 11:39:07,341 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:07,341 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, 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] [2024-12-02 11:39:07,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 11:39:07,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:07,541 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:07,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:07,542 INFO L85 PathProgramCache]: Analyzing trace with hash 838958355, now seen corresponding path program 1 times [2024-12-02 11:39:07,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:07,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013574472] [2024-12-02 11:39:07,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:07,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-12-02 11:39:11,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:11,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013574472] [2024-12-02 11:39:11,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013574472] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:11,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238181614] [2024-12-02 11:39:11,079 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:11,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:11,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:11,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:11,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 11:39:15,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:15,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 3098 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:39:15,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:15,854 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:15,854 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:39:15,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238181614] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:15,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:39:15,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 13 [2024-12-02 11:39:15,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992817187] [2024-12-02 11:39:15,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:15,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:39:15,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:15,856 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:39:15,857 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-12-02 11:39:15,857 INFO L87 Difference]: Start difference. First operand 20111 states and 28523 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:17,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:17,394 INFO L93 Difference]: Finished difference Result 50317 states and 71345 transitions. [2024-12-02 11:39:17,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:39:17,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 173 [2024-12-02 11:39:17,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:17,513 INFO L225 Difference]: With dead ends: 50317 [2024-12-02 11:39:17,513 INFO L226 Difference]: Without dead ends: 30215 [2024-12-02 11:39:17,573 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2024-12-02 11:39:17,574 INFO L435 NwaCegarLoop]: 2262 mSDtfsCounter, 1837 mSDsluCounter, 10847 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1841 SdHoareTripleChecker+Valid, 13109 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:17,574 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1841 Valid, 13109 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:39:17,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30215 states. [2024-12-02 11:39:18,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30215 to 30066. [2024-12-02 11:39:18,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30066 states, 21307 states have (on average 1.3094757591401887) internal successors, (27901), 21651 states have internal predecessors, (27901), 7318 states have call successors, (7318), 1433 states have call predecessors, (7318), 1440 states have return successors, (7441), 7285 states have call predecessors, (7441), 7317 states have call successors, (7441) [2024-12-02 11:39:18,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30066 states to 30066 states and 42660 transitions. [2024-12-02 11:39:18,536 INFO L78 Accepts]: Start accepts. Automaton has 30066 states and 42660 transitions. Word has length 173 [2024-12-02 11:39:18,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:18,536 INFO L471 AbstractCegarLoop]: Abstraction has 30066 states and 42660 transitions. [2024-12-02 11:39:18,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:18,537 INFO L276 IsEmpty]: Start isEmpty. Operand 30066 states and 42660 transitions. [2024-12-02 11:39:18,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-12-02 11:39:18,553 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:18,553 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:18,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 11:39:18,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-12-02 11:39:18,754 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:18,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:18,754 INFO L85 PathProgramCache]: Analyzing trace with hash -485066945, now seen corresponding path program 1 times [2024-12-02 11:39:18,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:18,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736171481] [2024-12-02 11:39:18,754 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:18,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:22,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:22,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736171481] [2024-12-02 11:39:22,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736171481] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:22,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735431026] [2024-12-02 11:39:22,813 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:22,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:22,814 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:22,815 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:22,816 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 11:39:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:26,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 3037 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 11:39:26,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:26,793 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2024-12-02 11:39:26,793 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:39:26,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735431026] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:26,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:39:26,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-12-02 11:39:26,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133604362] [2024-12-02 11:39:26,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:26,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:39:26,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:26,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:39:26,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:39:26,794 INFO L87 Difference]: Start difference. First operand 30066 states and 42660 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:39:27,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:27,416 INFO L93 Difference]: Finished difference Result 60013 states and 85132 transitions. [2024-12-02 11:39:27,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:39:27,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 168 [2024-12-02 11:39:27,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:27,556 INFO L225 Difference]: With dead ends: 60013 [2024-12-02 11:39:27,557 INFO L226 Difference]: Without dead ends: 29956 [2024-12-02 11:39:27,654 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-12-02 11:39:27,654 INFO L435 NwaCegarLoop]: 1810 mSDtfsCounter, 25 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3575 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:27,655 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3575 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:39:27,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29956 states. [2024-12-02 11:39:28,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29956 to 29934. [2024-12-02 11:39:28,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29934 states, 21263 states have (on average 1.3080468419319946) internal successors, (27813), 21585 states have internal predecessors, (27813), 7230 states have call successors, (7230), 1433 states have call predecessors, (7230), 1440 states have return successors, (7353), 7197 states have call predecessors, (7353), 7229 states have call successors, (7353) [2024-12-02 11:39:28,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29934 states to 29934 states and 42396 transitions. [2024-12-02 11:39:28,606 INFO L78 Accepts]: Start accepts. Automaton has 29934 states and 42396 transitions. Word has length 168 [2024-12-02 11:39:28,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:28,607 INFO L471 AbstractCegarLoop]: Abstraction has 29934 states and 42396 transitions. [2024-12-02 11:39:28,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-12-02 11:39:28,607 INFO L276 IsEmpty]: Start isEmpty. Operand 29934 states and 42396 transitions. [2024-12-02 11:39:28,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-12-02 11:39:28,617 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:28,617 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:28,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 11:39:28,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-12-02 11:39:28,818 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:28,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:28,818 INFO L85 PathProgramCache]: Analyzing trace with hash -1108917165, now seen corresponding path program 1 times [2024-12-02 11:39:28,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:28,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082275011] [2024-12-02 11:39:28,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:28,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:32,309 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:32,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:32,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082275011] [2024-12-02 11:39:32,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082275011] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:32,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733429998] [2024-12-02 11:39:32,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:32,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:32,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:32,311 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:32,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 11:39:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:36,314 INFO L256 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:39:36,317 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:37,000 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:39:37,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733429998] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:37,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:39:37,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 11:39:37,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377434452] [2024-12-02 11:39:37,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:37,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:39:37,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:37,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:39:37,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:39:37,001 INFO L87 Difference]: Start difference. First operand 29934 states and 42396 transitions. Second operand has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:38,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:38,680 INFO L93 Difference]: Finished difference Result 69974 states and 99053 transitions. [2024-12-02 11:39:38,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:39:38,681 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 174 [2024-12-02 11:39:38,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:38,829 INFO L225 Difference]: With dead ends: 69974 [2024-12-02 11:39:38,829 INFO L226 Difference]: Without dead ends: 40049 [2024-12-02 11:39:38,912 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:39:38,913 INFO L435 NwaCegarLoop]: 2458 mSDtfsCounter, 1824 mSDsluCounter, 11607 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 14065 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:38,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 14065 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:39:38,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40049 states. [2024-12-02 11:39:39,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40049 to 39879. [2024-12-02 11:39:39,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39879 states, 28333 states have (on average 1.3081565665478418) internal successors, (37064), 28784 states have internal predecessors, (37064), 9611 states have call successors, (9611), 1907 states have call predecessors, (9611), 1934 states have return successors, (9806), 9562 states have call predecessors, (9806), 9610 states have call successors, (9806) [2024-12-02 11:39:40,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39879 states to 39879 states and 56481 transitions. [2024-12-02 11:39:40,150 INFO L78 Accepts]: Start accepts. Automaton has 39879 states and 56481 transitions. Word has length 174 [2024-12-02 11:39:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:40,150 INFO L471 AbstractCegarLoop]: Abstraction has 39879 states and 56481 transitions. [2024-12-02 11:39:40,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.714285714285714) internal successors, (103), 5 states have internal predecessors, (103), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:40,150 INFO L276 IsEmpty]: Start isEmpty. Operand 39879 states and 56481 transitions. [2024-12-02 11:39:40,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-12-02 11:39:40,168 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:40,168 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:40,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 11:39:40,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-12-02 11:39:40,369 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:40,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:40,369 INFO L85 PathProgramCache]: Analyzing trace with hash -344005780, now seen corresponding path program 1 times [2024-12-02 11:39:40,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:40,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769383276] [2024-12-02 11:39:40,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:40,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:44,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:44,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769383276] [2024-12-02 11:39:44,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769383276] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:44,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918087569] [2024-12-02 11:39:44,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:44,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:44,003 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:44,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 11:39:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:47,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 3102 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:39:47,946 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:39:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:48,613 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:39:48,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918087569] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:39:48,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:39:48,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 11:39:48,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981038931] [2024-12-02 11:39:48,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:39:48,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:39:48,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:39:48,615 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:39:48,615 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:39:48,615 INFO L87 Difference]: Start difference. First operand 39879 states and 56481 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:50,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:39:50,526 INFO L93 Difference]: Finished difference Result 89853 states and 127205 transitions. [2024-12-02 11:39:50,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:39:50,527 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 175 [2024-12-02 11:39:50,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:39:50,725 INFO L225 Difference]: With dead ends: 89853 [2024-12-02 11:39:50,725 INFO L226 Difference]: Without dead ends: 49983 [2024-12-02 11:39:50,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:39:50,865 INFO L435 NwaCegarLoop]: 2458 mSDtfsCounter, 1824 mSDsluCounter, 11607 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 14065 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 11:39:50,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 14065 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 11:39:50,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49983 states. [2024-12-02 11:39:51,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49983 to 39901. [2024-12-02 11:39:51,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39901 states, 28349 states have (on average 1.3079826448904723) internal successors, (37080), 28802 states have internal predecessors, (37080), 9611 states have call successors, (9611), 1907 states have call predecessors, (9611), 1940 states have return successors, (9815), 9566 states have call predecessors, (9815), 9610 states have call successors, (9815) [2024-12-02 11:39:51,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39901 states to 39901 states and 56506 transitions. [2024-12-02 11:39:51,941 INFO L78 Accepts]: Start accepts. Automaton has 39901 states and 56506 transitions. Word has length 175 [2024-12-02 11:39:51,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:39:51,942 INFO L471 AbstractCegarLoop]: Abstraction has 39901 states and 56506 transitions. [2024-12-02 11:39:51,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:39:51,942 INFO L276 IsEmpty]: Start isEmpty. Operand 39901 states and 56506 transitions. [2024-12-02 11:39:51,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-12-02 11:39:51,954 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:39:51,954 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:39:51,966 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 11:39:52,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:52,154 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:39:52,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:39:52,155 INFO L85 PathProgramCache]: Analyzing trace with hash -1382046260, now seen corresponding path program 1 times [2024-12-02 11:39:52,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:39:52,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086658353] [2024-12-02 11:39:52,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:52,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:39:54,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:55,660 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:39:55,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:39:55,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086658353] [2024-12-02 11:39:55,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086658353] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:39:55,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [686581179] [2024-12-02 11:39:55,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:39:55,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:39:55,661 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:39:55,663 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:39:55,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-12-02 11:39:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:39:59,823 INFO L256 TraceCheckSpWp]: Trace formula consists of 3104 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 11:39:59,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:00,513 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2024-12-02 11:40:00,513 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:40:00,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [686581179] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:40:00,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:40:00,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-12-02 11:40:00,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144906196] [2024-12-02 11:40:00,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:40:00,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 11:40:00,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:00,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 11:40:00,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-12-02 11:40:00,515 INFO L87 Difference]: Start difference. First operand 39901 states and 56506 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:40:02,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:40:02,426 INFO L93 Difference]: Finished difference Result 89883 states and 127238 transitions. [2024-12-02 11:40:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-02 11:40:02,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) Word has length 176 [2024-12-02 11:40:02,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:40:02,613 INFO L225 Difference]: With dead ends: 89883 [2024-12-02 11:40:02,613 INFO L226 Difference]: Without dead ends: 49991 [2024-12-02 11:40:02,728 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-12-02 11:40:02,728 INFO L435 NwaCegarLoop]: 2458 mSDtfsCounter, 1824 mSDsluCounter, 11607 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1828 SdHoareTripleChecker+Valid, 14065 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-02 11:40:02,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1828 Valid, 14065 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-02 11:40:02,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49991 states. [2024-12-02 11:40:03,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49991 to 39914. [2024-12-02 11:40:03,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39914 states, 28359 states have (on average 1.307874043513523) internal successors, (37090), 28811 states have internal predecessors, (37090), 9611 states have call successors, (9611), 1907 states have call predecessors, (9611), 1943 states have return successors, (9818), 9570 states have call predecessors, (9818), 9610 states have call successors, (9818) [2024-12-02 11:40:03,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39914 states to 39914 states and 56519 transitions. [2024-12-02 11:40:03,746 INFO L78 Accepts]: Start accepts. Automaton has 39914 states and 56519 transitions. Word has length 176 [2024-12-02 11:40:03,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:40:03,746 INFO L471 AbstractCegarLoop]: Abstraction has 39914 states and 56519 transitions. [2024-12-02 11:40:03,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 5 states have internal predecessors, (105), 3 states have call successors, (23), 3 states have call predecessors, (23), 3 states have return successors, (18), 3 states have call predecessors, (18), 2 states have call successors, (18) [2024-12-02 11:40:03,747 INFO L276 IsEmpty]: Start isEmpty. Operand 39914 states and 56519 transitions. [2024-12-02 11:40:03,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-12-02 11:40:03,760 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:40:03,760 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:40:03,775 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-12-02 11:40:03,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:03,960 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:40:03,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:40:03,961 INFO L85 PathProgramCache]: Analyzing trace with hash -278156814, now seen corresponding path program 1 times [2024-12-02 11:40:03,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:40:03,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584211215] [2024-12-02 11:40:03,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:03,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:40:07,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:07,829 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 11:40:07,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:40:07,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584211215] [2024-12-02 11:40:07,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584211215] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:40:07,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1366157023] [2024-12-02 11:40:07,829 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:40:07,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:40:07,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:40:07,831 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:40:07,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-12-02 11:40:12,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:40:12,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 3171 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:40:12,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:40:13,626 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 11:40:13,626 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:40:16,192 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 11:40:16,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1366157023] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:40:16,193 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:40:16,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 11:40:16,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143381168] [2024-12-02 11:40:16,193 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:40:16,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:40:16,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:40:16,195 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:40:16,195 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:40:16,195 INFO L87 Difference]: Start difference. First operand 39914 states and 56519 transitions. Second operand has 18 states, 18 states have (on average 10.722222222222221) internal successors, (193), 14 states have internal predecessors, (193), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2024-12-02 11:40:20,229 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 11:40:24,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:40:28,328 WARN L539 Checker$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 11:40:32,367 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 11:41:35,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:41:35,793 INFO L93 Difference]: Finished difference Result 108459 states and 153999 transitions. [2024-12-02 11:41:35,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 11:41:35,794 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.722222222222221) internal successors, (193), 14 states have internal predecessors, (193), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 188 [2024-12-02 11:41:35,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:41:36,012 INFO L225 Difference]: With dead ends: 108459 [2024-12-02 11:41:36,012 INFO L226 Difference]: Without dead ends: 68526 [2024-12-02 11:41:36,114 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 455 GetRequests, 368 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1988 ImplicationChecksByTransitivity, 11.9s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:41:36,115 INFO L435 NwaCegarLoop]: 4471 mSDtfsCounter, 11294 mSDsluCounter, 42043 mSDsCounter, 0 mSdLazyCounter, 6291 mSolverCounterSat, 2658 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 65.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11315 SdHoareTripleChecker+Valid, 46514 SdHoareTripleChecker+Invalid, 8953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2658 IncrementalHoareTripleChecker+Valid, 6291 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.7s IncrementalHoareTripleChecker+Time [2024-12-02 11:41:36,115 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11315 Valid, 46514 Invalid, 8953 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2658 Valid, 6291 Invalid, 4 Unknown, 0 Unchecked, 67.7s Time] [2024-12-02 11:41:36,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68526 states. [2024-12-02 11:41:37,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68526 to 64504. [2024-12-02 11:41:37,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64504 states, 45837 states have (on average 1.3082444313545825) internal successors, (59966), 46580 states have internal predecessors, (59966), 15521 states have call successors, (15521), 3084 states have call predecessors, (15521), 3145 states have return successors, (15859), 15445 states have call predecessors, (15859), 15520 states have call successors, (15859) [2024-12-02 11:41:38,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64504 states to 64504 states and 91346 transitions. [2024-12-02 11:41:38,215 INFO L78 Accepts]: Start accepts. Automaton has 64504 states and 91346 transitions. Word has length 188 [2024-12-02 11:41:38,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:41:38,216 INFO L471 AbstractCegarLoop]: Abstraction has 64504 states and 91346 transitions. [2024-12-02 11:41:38,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.722222222222221) internal successors, (193), 14 states have internal predecessors, (193), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2024-12-02 11:41:38,216 INFO L276 IsEmpty]: Start isEmpty. Operand 64504 states and 91346 transitions. [2024-12-02 11:41:38,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 11:41:38,235 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:41:38,235 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:41:38,255 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-12-02 11:41:38,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-12-02 11:41:38,436 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:41:38,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:41:38,436 INFO L85 PathProgramCache]: Analyzing trace with hash 372140363, now seen corresponding path program 1 times [2024-12-02 11:41:38,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:41:38,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931050168] [2024-12-02 11:41:38,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:38,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:41:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:41,967 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 11:41:41,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:41:41,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931050168] [2024-12-02 11:41:41,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931050168] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:41:41,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798194839] [2024-12-02 11:41:41,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:41:41,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:41:41,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:41:41,969 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:41:41,970 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-12-02 11:41:46,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:41:46,299 INFO L256 TraceCheckSpWp]: Trace formula consists of 3173 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:41:46,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:41:48,037 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 11:41:48,037 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:41:51,489 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 11:41:51,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798194839] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:41:51,489 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:41:51,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 11:41:51,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783505086] [2024-12-02 11:41:51,490 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:41:51,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:41:51,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:41:51,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:41:51,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:41:51,492 INFO L87 Difference]: Start difference. First operand 64504 states and 91346 transitions. Second operand has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 14 states have internal predecessors, (195), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2024-12-02 11:41:55,523 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 11:41:59,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:03,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:42:07,646 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 11:43:13,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:43:13,748 INFO L93 Difference]: Finished difference Result 157667 states and 223681 transitions. [2024-12-02 11:43:13,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 11:43:13,748 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 14 states have internal predecessors, (195), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 189 [2024-12-02 11:43:13,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:43:14,041 INFO L225 Difference]: With dead ends: 157667 [2024-12-02 11:43:14,041 INFO L226 Difference]: Without dead ends: 93144 [2024-12-02 11:43:14,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 370 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2019 ImplicationChecksByTransitivity, 13.3s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:43:14,187 INFO L435 NwaCegarLoop]: 3636 mSDtfsCounter, 11906 mSDsluCounter, 31458 mSDsCounter, 0 mSdLazyCounter, 6040 mSolverCounterSat, 3073 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 67.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11927 SdHoareTripleChecker+Valid, 35094 SdHoareTripleChecker+Invalid, 9117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 3073 IncrementalHoareTripleChecker+Valid, 6040 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:43:14,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11927 Valid, 35094 Invalid, 9117 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [3073 Valid, 6040 Invalid, 4 Unknown, 0 Unchecked, 69.1s Time] [2024-12-02 11:43:14,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93144 states. [2024-12-02 11:43:16,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93144 to 69268. [2024-12-02 11:43:16,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69268 states, 49219 states have (on average 1.308153355411528) internal successors, (64386), 50014 states have internal predecessors, (64386), 16670 states have call successors, (16670), 3314 states have call predecessors, (16670), 3378 states have return successors, (17020), 16590 states have call predecessors, (17020), 16669 states have call successors, (17020) [2024-12-02 11:43:16,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69268 states to 69268 states and 98076 transitions. [2024-12-02 11:43:16,353 INFO L78 Accepts]: Start accepts. Automaton has 69268 states and 98076 transitions. Word has length 189 [2024-12-02 11:43:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:43:16,353 INFO L471 AbstractCegarLoop]: Abstraction has 69268 states and 98076 transitions. [2024-12-02 11:43:16,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.833333333333334) internal successors, (195), 14 states have internal predecessors, (195), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2024-12-02 11:43:16,353 INFO L276 IsEmpty]: Start isEmpty. Operand 69268 states and 98076 transitions. [2024-12-02 11:43:16,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-12-02 11:43:16,377 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:43:16,378 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:43:16,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-12-02 11:43:16,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-12-02 11:43:16,578 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:43:16,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:43:16,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1726250069, now seen corresponding path program 1 times [2024-12-02 11:43:16,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:43:16,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524771453] [2024-12-02 11:43:16,579 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:16,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:43:19,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:20,478 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 16 proven. 7 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 11:43:20,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:43:20,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524771453] [2024-12-02 11:43:20,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524771453] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:43:20,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202029134] [2024-12-02 11:43:20,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:43:20,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:43:20,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:43:20,481 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:43:20,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-12-02 11:43:26,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:43:26,248 INFO L256 TraceCheckSpWp]: Trace formula consists of 3175 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 11:43:26,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:43:28,138 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 11:43:28,138 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 11:43:31,893 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2024-12-02 11:43:31,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202029134] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 11:43:31,893 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 11:43:31,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 18 [2024-12-02 11:43:31,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834229387] [2024-12-02 11:43:31,894 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 11:43:31,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-12-02 11:43:31,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:43:31,895 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-12-02 11:43:31,895 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2024-12-02 11:43:31,895 INFO L87 Difference]: Start difference. First operand 69268 states and 98076 transitions. Second operand has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 14 states have internal predecessors, (197), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2024-12-02 11:43:35,929 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 11:43:40,142 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 11:43:44,174 WARN L539 Checker$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 11:43:48,203 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 11:45:07,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:07,604 INFO L93 Difference]: Finished difference Result 157283 states and 223096 transitions. [2024-12-02 11:45:07,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2024-12-02 11:45:07,604 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 14 states have internal predecessors, (197), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) Word has length 190 [2024-12-02 11:45:07,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:07,903 INFO L225 Difference]: With dead ends: 157283 [2024-12-02 11:45:07,903 INFO L226 Difference]: Without dead ends: 87996 [2024-12-02 11:45:08,071 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 459 GetRequests, 372 SyntacticMatches, 8 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2021 ImplicationChecksByTransitivity, 13.7s TimeCoverageRelationStatistics Valid=785, Invalid=5695, Unknown=0, NotChecked=0, Total=6480 [2024-12-02 11:45:08,072 INFO L435 NwaCegarLoop]: 3543 mSDtfsCounter, 11481 mSDsluCounter, 40077 mSDsCounter, 0 mSdLazyCounter, 7552 mSolverCounterSat, 2827 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11502 SdHoareTripleChecker+Valid, 43620 SdHoareTripleChecker+Invalid, 10383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 2827 IncrementalHoareTripleChecker+Valid, 7552 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 82.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:08,072 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [11502 Valid, 43620 Invalid, 10383 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [2827 Valid, 7552 Invalid, 4 Unknown, 0 Unchecked, 82.4s Time] [2024-12-02 11:45:08,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87996 states. [2024-12-02 11:45:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87996 to 64106. [2024-12-02 11:45:09,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64106 states, 45545 states have (on average 1.3079152486551762) internal successors, (59569), 46264 states have internal predecessors, (59569), 15438 states have call successors, (15438), 3070 states have call predecessors, (15438), 3122 states have return successors, (15740), 15374 states have call predecessors, (15740), 15437 states have call successors, (15740) [2024-12-02 11:45:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64106 states to 64106 states and 90747 transitions. [2024-12-02 11:45:10,130 INFO L78 Accepts]: Start accepts. Automaton has 64106 states and 90747 transitions. Word has length 190 [2024-12-02 11:45:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:10,131 INFO L471 AbstractCegarLoop]: Abstraction has 64106 states and 90747 transitions. [2024-12-02 11:45:10,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 10.944444444444445) internal successors, (197), 14 states have internal predecessors, (197), 5 states have call successors, (43), 4 states have call predecessors, (43), 7 states have return successors, (37), 6 states have call predecessors, (37), 5 states have call successors, (37) [2024-12-02 11:45:10,131 INFO L276 IsEmpty]: Start isEmpty. Operand 64106 states and 90747 transitions. [2024-12-02 11:45:10,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-12-02 11:45:10,154 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:10,154 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-12-02 11:45:10,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-12-02 11:45:10,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:45:10,355 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:10,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:10,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1441670219, now seen corresponding path program 1 times [2024-12-02 11:45:10,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:10,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610465982] [2024-12-02 11:45:10,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:10,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:13,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:13,411 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-12-02 11:45:13,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:13,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610465982] [2024-12-02 11:45:13,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610465982] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:13,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:13,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:45:13,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045340658] [2024-12-02 11:45:13,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:13,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:45:13,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:13,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:45:13,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:45:13,412 INFO L87 Difference]: Start difference. First operand 64106 states and 90747 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 11:45:15,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:15,858 INFO L93 Difference]: Finished difference Result 175356 states and 247317 transitions. [2024-12-02 11:45:15,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:45:15,858 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 188 [2024-12-02 11:45:15,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:16,292 INFO L225 Difference]: With dead ends: 175356 [2024-12-02 11:45:16,292 INFO L226 Difference]: Without dead ends: 111259 [2024-12-02 11:45:16,497 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 11:45:16,497 INFO L435 NwaCegarLoop]: 2138 mSDtfsCounter, 1434 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1434 SdHoareTripleChecker+Valid, 3820 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:16,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1434 Valid, 3820 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 11:45:16,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111259 states. [2024-12-02 11:45:19,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111259 to 111048. [2024-12-02 11:45:19,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111048 states, 79556 states have (on average 1.3108879280004022) internal successors, (104289), 80914 states have internal predecessors, (104289), 25817 states have call successors, (25817), 5569 states have call predecessors, (25817), 5674 states have return successors, (26214), 25586 states have call predecessors, (26214), 25816 states have call successors, (26214) [2024-12-02 11:45:19,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111048 states to 111048 states and 156320 transitions. [2024-12-02 11:45:19,948 INFO L78 Accepts]: Start accepts. Automaton has 111048 states and 156320 transitions. Word has length 188 [2024-12-02 11:45:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:19,948 INFO L471 AbstractCegarLoop]: Abstraction has 111048 states and 156320 transitions. [2024-12-02 11:45:19,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (24), 2 states have call predecessors, (24), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2024-12-02 11:45:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 111048 states and 156320 transitions. [2024-12-02 11:45:19,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-12-02 11:45:19,953 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:19,953 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:45:19,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 11:45:19,953 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:19,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:19,954 INFO L85 PathProgramCache]: Analyzing trace with hash 420943817, now seen corresponding path program 1 times [2024-12-02 11:45:19,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:19,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322111454] [2024-12-02 11:45:19,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:19,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:22,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 353 trivial. 0 not checked. [2024-12-02 11:45:23,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322111454] [2024-12-02 11:45:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322111454] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:23,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:23,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:45:23,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908123661] [2024-12-02 11:45:23,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:23,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:45:23,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:23,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:45:23,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:45:23,139 INFO L87 Difference]: Start difference. First operand 111048 states and 156320 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 11:45:27,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:27,004 INFO L93 Difference]: Finished difference Result 297565 states and 417700 transitions. [2024-12-02 11:45:27,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:45:27,005 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 273 [2024-12-02 11:45:27,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:27,640 INFO L225 Difference]: With dead ends: 297565 [2024-12-02 11:45:27,640 INFO L226 Difference]: Without dead ends: 186526 [2024-12-02 11:45:27,912 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 11:45:27,913 INFO L435 NwaCegarLoop]: 2680 mSDtfsCounter, 1282 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1282 SdHoareTripleChecker+Valid, 4466 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 11:45:27,913 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1282 Valid, 4466 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:45:28,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186526 states. [2024-12-02 11:45:33,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186526 to 171778. [2024-12-02 11:45:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171778 states, 122509 states have (on average 1.3082467410557592) internal successors, (160272), 124611 states have internal predecessors, (160272), 40028 states have call successors, (40028), 9052 states have call predecessors, (40028), 9240 states have return successors, (40787), 39707 states have call predecessors, (40787), 40027 states have call successors, (40787) [2024-12-02 11:45:34,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171778 states to 171778 states and 241087 transitions. [2024-12-02 11:45:34,319 INFO L78 Accepts]: Start accepts. Automaton has 171778 states and 241087 transitions. Word has length 273 [2024-12-02 11:45:34,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:34,320 INFO L471 AbstractCegarLoop]: Abstraction has 171778 states and 241087 transitions. [2024-12-02 11:45:34,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 2 states have call successors, (29), 2 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-12-02 11:45:34,320 INFO L276 IsEmpty]: Start isEmpty. Operand 171778 states and 241087 transitions. [2024-12-02 11:45:34,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 11:45:34,328 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:34,329 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:45:34,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 11:45:34,329 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:34,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:34,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1575637332, now seen corresponding path program 1 times [2024-12-02 11:45:34,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:34,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510955448] [2024-12-02 11:45:34,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:34,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:38,068 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2024-12-02 11:45:38,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:38,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510955448] [2024-12-02 11:45:38,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510955448] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:38,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:45:38,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:45:38,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625117844] [2024-12-02 11:45:38,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:38,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:45:38,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:38,069 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:45:38,070 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:45:38,070 INFO L87 Difference]: Start difference. First operand 171778 states and 241087 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 11:45:42,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:45:42,652 INFO L93 Difference]: Finished difference Result 343533 states and 482305 transitions. [2024-12-02 11:45:42,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:45:42,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 305 [2024-12-02 11:45:42,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:45:43,579 INFO L225 Difference]: With dead ends: 343533 [2024-12-02 11:45:43,579 INFO L226 Difference]: Without dead ends: 171778 [2024-12-02 11:45:44,019 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 11:45:44,020 INFO L435 NwaCegarLoop]: 1808 mSDtfsCounter, 40 mSDsluCounter, 1759 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 3567 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:45:44,020 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 3567 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:45:44,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171778 states. [2024-12-02 11:45:49,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171778 to 171778. [2024-12-02 11:45:49,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171778 states, 122509 states have (on average 1.307397823833351) internal successors, (160168), 124611 states have internal predecessors, (160168), 40028 states have call successors, (40028), 9052 states have call predecessors, (40028), 9240 states have return successors, (40787), 39707 states have call predecessors, (40787), 40027 states have call successors, (40787) [2024-12-02 11:45:50,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171778 states to 171778 states and 240983 transitions. [2024-12-02 11:45:50,435 INFO L78 Accepts]: Start accepts. Automaton has 171778 states and 240983 transitions. Word has length 305 [2024-12-02 11:45:50,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:45:50,435 INFO L471 AbstractCegarLoop]: Abstraction has 171778 states and 240983 transitions. [2024-12-02 11:45:50,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-12-02 11:45:50,435 INFO L276 IsEmpty]: Start isEmpty. Operand 171778 states and 240983 transitions. [2024-12-02 11:45:50,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2024-12-02 11:45:50,441 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:45:50,442 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 11:45:50,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 11:45:50,442 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:45:50,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:45:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2048872982, now seen corresponding path program 1 times [2024-12-02 11:45:50,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:45:50,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914103349] [2024-12-02 11:45:50,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:50,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:45:53,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-12-02 11:45:53,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:45:53,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914103349] [2024-12-02 11:45:53,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914103349] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 11:45:53,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40232378] [2024-12-02 11:45:53,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:45:53,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 11:45:53,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 11:45:53,792 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 11:45:53,793 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-12-02 11:45:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:45:59,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 4194 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 11:45:59,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 11:45:59,892 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 388 trivial. 0 not checked. [2024-12-02 11:45:59,892 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 11:45:59,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40232378] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:45:59,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 11:45:59,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-12-02 11:45:59,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34943380] [2024-12-02 11:45:59,893 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:45:59,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:45:59,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:45:59,894 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:45:59,894 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:45:59,894 INFO L87 Difference]: Start difference. First operand 171778 states and 240983 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 11:46:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:04,180 INFO L93 Difference]: Finished difference Result 343689 states and 482201 transitions. [2024-12-02 11:46:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:46:04,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 305 [2024-12-02 11:46:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:04,845 INFO L225 Difference]: With dead ends: 343689 [2024-12-02 11:46:04,845 INFO L226 Difference]: Without dead ends: 171934 [2024-12-02 11:46:05,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 306 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:46:05,260 INFO L435 NwaCegarLoop]: 1794 mSDtfsCounter, 188 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 3337 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:05,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 3337 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:46:05,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171934 states. [2024-12-02 11:46:09,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171934 to 171362. [2024-12-02 11:46:10,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171362 states, 122301 states have (on average 1.3045191780933925) internal successors, (159544), 124403 states have internal predecessors, (159544), 39820 states have call successors, (39820), 9052 states have call predecessors, (39820), 9240 states have return successors, (40579), 39499 states have call predecessors, (40579), 39819 states have call successors, (40579) [2024-12-02 11:46:10,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171362 states to 171362 states and 239943 transitions. [2024-12-02 11:46:10,731 INFO L78 Accepts]: Start accepts. Automaton has 171362 states and 239943 transitions. Word has length 305 [2024-12-02 11:46:10,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:10,731 INFO L471 AbstractCegarLoop]: Abstraction has 171362 states and 239943 transitions. [2024-12-02 11:46:10,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 3 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2024-12-02 11:46:10,732 INFO L276 IsEmpty]: Start isEmpty. Operand 171362 states and 239943 transitions. [2024-12-02 11:46:10,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-02 11:46:10,736 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:10,737 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:10,755 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-12-02 11:46:10,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e3024e10-cc6c-4af1-99f4-6561d8a482fb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-12-02 11:46:10,937 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:10,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:10,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1988940733, now seen corresponding path program 1 times [2024-12-02 11:46:10,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:10,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560646037] [2024-12-02 11:46:10,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:10,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:14,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:14,913 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-12-02 11:46:14,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:14,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560646037] [2024-12-02 11:46:14,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560646037] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:14,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:14,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:46:14,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592842640] [2024-12-02 11:46:14,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:14,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:46:14,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:14,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:46:14,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:46:14,915 INFO L87 Difference]: Start difference. First operand 171362 states and 239943 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 11:46:19,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:19,027 INFO L93 Difference]: Finished difference Result 342701 states and 479861 transitions. [2024-12-02 11:46:19,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:46:19,029 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 313 [2024-12-02 11:46:19,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:19,748 INFO L225 Difference]: With dead ends: 342701 [2024-12-02 11:46:19,749 INFO L226 Difference]: Without dead ends: 171362 [2024-12-02 11:46:20,358 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 11:46:20,358 INFO L435 NwaCegarLoop]: 1797 mSDtfsCounter, 0 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3591 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:20,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3591 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 11:46:20,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171362 states. [2024-12-02 11:46:25,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171362 to 171362. [2024-12-02 11:46:25,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171362 states, 122301 states have (on average 1.3036688170987973) internal successors, (159440), 124403 states have internal predecessors, (159440), 39820 states have call successors, (39820), 9052 states have call predecessors, (39820), 9240 states have return successors, (40579), 39499 states have call predecessors, (40579), 39819 states have call successors, (40579) [2024-12-02 11:46:25,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171362 states to 171362 states and 239839 transitions. [2024-12-02 11:46:26,035 INFO L78 Accepts]: Start accepts. Automaton has 171362 states and 239839 transitions. Word has length 313 [2024-12-02 11:46:26,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:26,035 INFO L471 AbstractCegarLoop]: Abstraction has 171362 states and 239839 transitions. [2024-12-02 11:46:26,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 11:46:26,036 INFO L276 IsEmpty]: Start isEmpty. Operand 171362 states and 239839 transitions. [2024-12-02 11:46:26,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-02 11:46:26,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:26,041 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:26,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 11:46:26,041 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:26,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:26,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1694757505, now seen corresponding path program 1 times [2024-12-02 11:46:26,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:26,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984331763] [2024-12-02 11:46:26,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:26,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:29,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:29,621 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-12-02 11:46:29,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:29,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984331763] [2024-12-02 11:46:29,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984331763] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:29,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:29,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 11:46:29,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591211551] [2024-12-02 11:46:29,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:29,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 11:46:29,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:29,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 11:46:29,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:46:29,623 INFO L87 Difference]: Start difference. First operand 171362 states and 239839 transitions. Second operand has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 11:46:33,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:33,869 INFO L93 Difference]: Finished difference Result 342493 states and 479237 transitions. [2024-12-02 11:46:33,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 11:46:33,870 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 313 [2024-12-02 11:46:33,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:34,568 INFO L225 Difference]: With dead ends: 342493 [2024-12-02 11:46:34,568 INFO L226 Difference]: Without dead ends: 171154 [2024-12-02 11:46:34,954 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 11:46:34,955 INFO L435 NwaCegarLoop]: 1784 mSDtfsCounter, 15 mSDsluCounter, 3536 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 5320 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:34,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 5320 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:46:35,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171154 states. [2024-12-02 11:46:39,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171154 to 170738. [2024-12-02 11:46:39,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170738 states, 121989 states have (on average 1.3027404110206657) internal successors, (158920), 124091 states have internal predecessors, (158920), 39508 states have call successors, (39508), 9052 states have call predecessors, (39508), 9240 states have return successors, (40267), 39187 states have call predecessors, (40267), 39507 states have call successors, (40267) [2024-12-02 11:46:40,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170738 states to 170738 states and 238695 transitions. [2024-12-02 11:46:40,740 INFO L78 Accepts]: Start accepts. Automaton has 170738 states and 238695 transitions. Word has length 313 [2024-12-02 11:46:40,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:40,740 INFO L471 AbstractCegarLoop]: Abstraction has 170738 states and 238695 transitions. [2024-12-02 11:46:40,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.5) internal successors, (134), 4 states have internal predecessors, (134), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2024-12-02 11:46:40,741 INFO L276 IsEmpty]: Start isEmpty. Operand 170738 states and 238695 transitions. [2024-12-02 11:46:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-12-02 11:46:40,745 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:40,745 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:40,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 11:46:40,746 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:40,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:40,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1621172927, now seen corresponding path program 1 times [2024-12-02 11:46:40,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:40,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879054024] [2024-12-02 11:46:40,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:40,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:46:43,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:46:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 403 trivial. 0 not checked. [2024-12-02 11:46:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:46:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879054024] [2024-12-02 11:46:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879054024] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:46:44,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:46:44,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 11:46:44,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986358656] [2024-12-02 11:46:44,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:46:44,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 11:46:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:46:44,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 11:46:44,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:46:44,297 INFO L87 Difference]: Start difference. First operand 170738 states and 238695 transitions. Second operand has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 11:46:48,329 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 11:46:52,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:46:52,694 INFO L93 Difference]: Finished difference Result 341973 states and 478093 transitions. [2024-12-02 11:46:52,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 11:46:52,694 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 313 [2024-12-02 11:46:52,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:46:53,632 INFO L225 Difference]: With dead ends: 341973 [2024-12-02 11:46:53,633 INFO L226 Difference]: Without dead ends: 170738 [2024-12-02 11:46:54,010 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 11:46:54,011 INFO L435 NwaCegarLoop]: 1783 mSDtfsCounter, 1 mSDsluCounter, 5338 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7121 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 11:46:54,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7121 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 11:46:54,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170738 states. [2024-12-02 11:46:58,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170738 to 170738. [2024-12-02 11:46:58,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170738 states, 121989 states have (on average 1.3001828033675167) internal successors, (158608), 124091 states have internal predecessors, (158608), 39508 states have call successors, (39508), 9052 states have call predecessors, (39508), 9240 states have return successors, (40267), 39187 states have call predecessors, (40267), 39507 states have call successors, (40267) [2024-12-02 11:46:59,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170738 states to 170738 states and 238383 transitions. [2024-12-02 11:46:59,671 INFO L78 Accepts]: Start accepts. Automaton has 170738 states and 238383 transitions. Word has length 313 [2024-12-02 11:46:59,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:46:59,671 INFO L471 AbstractCegarLoop]: Abstraction has 170738 states and 238383 transitions. [2024-12-02 11:46:59,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.2) internal successors, (136), 5 states have internal predecessors, (136), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 11:46:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 170738 states and 238383 transitions. [2024-12-02 11:46:59,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2024-12-02 11:46:59,676 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:46:59,676 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:46:59,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 11:46:59,677 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:46:59,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:46:59,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1850195963, now seen corresponding path program 1 times [2024-12-02 11:46:59,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:46:59,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704082000] [2024-12-02 11:46:59,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:46:59,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 11:47:02,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 11:47:03,230 INFO L134 CoverageAnalysis]: Checked inductivity of 406 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2024-12-02 11:47:03,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 11:47:03,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704082000] [2024-12-02 11:47:03,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704082000] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 11:47:03,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 11:47:03,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 11:47:03,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608720825] [2024-12-02 11:47:03,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 11:47:03,231 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 11:47:03,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 11:47:03,232 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 11:47:03,232 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:47:03,232 INFO L87 Difference]: Start difference. First operand 170738 states and 238383 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 11:47:07,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 11:47:07,435 INFO L93 Difference]: Finished difference Result 342699 states and 480272 transitions. [2024-12-02 11:47:07,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 11:47:07,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 315 [2024-12-02 11:47:07,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 11:47:08,427 INFO L225 Difference]: With dead ends: 342699 [2024-12-02 11:47:08,427 INFO L226 Difference]: Without dead ends: 171984 [2024-12-02 11:47:08,821 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 11:47:08,823 INFO L435 NwaCegarLoop]: 1781 mSDtfsCounter, 4 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 3558 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 11:47:08,823 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 3558 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 11:47:08,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171984 states. [2024-12-02 11:47:13,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171984 to 171628. [2024-12-02 11:47:13,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171628 states, 122701 states have (on average 1.2998916064253756) internal successors, (159498), 124803 states have internal predecessors, (159498), 39686 states have call successors, (39686), 9052 states have call predecessors, (39686), 9240 states have return successors, (40445), 39365 states have call predecessors, (40445), 39685 states have call successors, (40445) [2024-12-02 11:47:14,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171628 states to 171628 states and 239629 transitions. [2024-12-02 11:47:14,493 INFO L78 Accepts]: Start accepts. Automaton has 171628 states and 239629 transitions. Word has length 315 [2024-12-02 11:47:14,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 11:47:14,493 INFO L471 AbstractCegarLoop]: Abstraction has 171628 states and 239629 transitions. [2024-12-02 11:47:14,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2024-12-02 11:47:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 171628 states and 239629 transitions. [2024-12-02 11:47:14,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2024-12-02 11:47:14,499 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 11:47:14,499 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:47:14,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 11:47:14,499 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 11:47:14,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 11:47:14,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1747406489, now seen corresponding path program 1 times [2024-12-02 11:47:14,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 11:47:14,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238710993] [2024-12-02 11:47:14,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 11:47:14,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms