./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.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_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/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_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/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_433a2b1c-e72d-4234-9369-aec549ef5d22/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 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:49:28,928 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:49:28,981 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-02 14:49:28,986 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:49:28,986 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:49:29,007 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:49:29,008 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:49:29,008 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:49:29,009 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:49:29,009 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:49:29,009 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:49:29,009 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:49:29,009 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:49:29,009 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:49:29,009 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:49:29,010 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:49:29,010 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:49:29,011 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:49:29,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:49:29,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:49:29,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:49:29,012 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:49:29,013 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:49:29,013 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_433a2b1c-e72d-4234-9369-aec549ef5d22/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 -> 5ed3d5c0aeaf7c032926a2347a2cd8f6e5404a73032a43856ee00d265d816a1f [2024-12-02 14:49:29,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:49:29,229 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:49:29,231 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:49:29,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:49:29,232 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:49:29,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-12-02 14:49:31,848 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/data/49e4c87d6/a7afa3fccb974a518ac272223555625f/FLAG696da5a23 [2024-12-02 14:49:32,302 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:49:32,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-12-02 14:49:32,339 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/data/49e4c87d6/a7afa3fccb974a518ac272223555625f/FLAG696da5a23 [2024-12-02 14:49:32,351 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/data/49e4c87d6/a7afa3fccb974a518ac272223555625f [2024-12-02 14:49:32,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:49:32,354 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:49:32,355 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:49:32,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:49:32,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:49:32,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:49:32" (1/1) ... [2024-12-02 14:49:32,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d080a15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:32, skipping insertion in model container [2024-12-02 14:49:32,360 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:49:32" (1/1) ... [2024-12-02 14:49:32,425 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:49:34,263 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_433a2b1c-e72d-4234-9369-aec549ef5d22/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2024-12-02 14:49:34,266 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_433a2b1c-e72d-4234-9369-aec549ef5d22/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2024-12-02 14:49:34,284 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:49:34,313 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:49:34,382 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"); [5255] [2024-12-02 14:49:34,384 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)); [5262] [2024-12-02 14:49:34,384 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5269] [2024-12-02 14:49:34,386 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 *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5306-5307] [2024-12-02 14:49:34,386 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5312-5314] [2024-12-02 14:49:34,393 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)); [5455-5456] [2024-12-02 14:49:34,395 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)); [5489-5490] [2024-12-02 14:49:34,520 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7251] [2024-12-02 14:49:34,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2024-12-02 14:49:34,666 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_433a2b1c-e72d-4234-9369-aec549ef5d22/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310122,310135] [2024-12-02 14:49:34,667 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_433a2b1c-e72d-4234-9369-aec549ef5d22/sv-benchmarks/c/ldv-challenges/linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i[310267,310280] [2024-12-02 14:49:34,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:49:34,832 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:49:34,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34 WrapperNode [2024-12-02 14:49:34,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:49:34,834 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:49:34,834 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:49:34,834 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:49:34,838 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:34,887 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,048 INFO L138 Inliner]: procedures = 410, calls = 1792, calls flagged for inlining = 195, calls inlined = 179, statements flattened = 4823 [2024-12-02 14:49:35,049 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:49:35,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:49:35,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:49:35,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:49:35,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,083 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,831 INFO L175 MemorySlicer]: Split 772 memory accesses to 14 slices as follows [52, 3, 626, 8, 8, 1, 5, 5, 2, 2, 2, 2, 1, 55]. 81 percent of accesses are in the largest equivalence class. The 52 initializations are split as follows [0, 1, 22, 8, 8, 1, 5, 5, 0, 0, 0, 2, 0, 0]. The 398 writes are split as follows [42, 0, 298, 0, 0, 0, 0, 0, 1, 1, 1, 0, 0, 55]. [2024-12-02 14:49:35,831 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,832 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,951 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:35,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:36,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:36,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:36,053 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:49:36,054 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:49:36,054 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:49:36,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:49:36,055 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (1/1) ... [2024-12-02 14:49:36,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:49:36,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:49:36,085 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:49:36,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:49:36,112 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_92 [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_92 [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-12-02 14:49:36,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-12-02 14:49:36,113 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_poll [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_poll [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-12-02 14:49:36,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-12-02 14:49:36,114 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2024-12-02 14:49:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_stop [2024-12-02 14:49:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_stop [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-12-02 14:49:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-12-02 14:49:36,115 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#9 [2024-12-02 14:49:36,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#10 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#11 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#12 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#13 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-12-02 14:49:36,116 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#9 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#10 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#11 [2024-12-02 14:49:36,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#12 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#13 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-12-02 14:49:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_set_filter_mode [2024-12-02 14:49:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_set_filter_mode [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure phy_write_1bit [2024-12-02 14:49:36,117 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_write_1bit [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-12-02 14:49:36,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2024-12-02 14:49:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~X~~u16~0~TO~VOID [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-12-02 14:49:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#9 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#10 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#11 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#12 [2024-12-02 14:49:36,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#13 [2024-12-02 14:49:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2024-12-02 14:49:36,118 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#9 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#10 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#11 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#12 [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#13 [2024-12-02 14:49:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2024-12-02 14:49:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-12-02 14:49:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-12-02 14:49:36,119 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-12-02 14:49:36,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure phy_read_1bit [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_read_1bit [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reset_prepare [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reset_prepare [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_rx_buffer [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_rx_buffer [2024-12-02 14:49:36,120 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-12-02 14:49:36,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-12-02 14:49:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-12-02 14:49:36,121 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 14:49:36,121 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure skb_tail_pointer [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_tail_pointer [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_reuse_skb [2024-12-02 14:49:36,122 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_reuse_skb [2024-12-02 14:49:36,122 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_open [2024-12-02 14:49:36,123 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_open [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#9 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#10 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#11 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#12 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#13 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-12-02 14:49:36,123 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#9 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#10 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#11 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#12 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#13 [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_uli526x_board_info [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_uli526x_board_info [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-12-02 14:49:36,124 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-12-02 14:49:36,124 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-12-02 14:49:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure send_filter_frame [2024-12-02 14:49:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure send_filter_frame [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2024-12-02 14:49:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_uli526x_cleanup_module_14_2 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-12-02 14:49:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-12-02 14:49:36,125 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-12-02 14:49:36,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_resume [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_resume [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_interrupt [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_interrupt [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~u8~0~X~~u8~0~TO~~u16~0 [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_remove_one [2024-12-02 14:49:36,126 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_remove_one [2024-12-02 14:49:36,126 INFO L130 BoogieDeclarations]: Found specification of procedure update_cr6 [2024-12-02 14:49:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure update_cr6 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-12-02 14:49:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure srom_clk_write [2024-12-02 14:49:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure srom_clk_write [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_free_rxbuffer [2024-12-02 14:49:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_free_rxbuffer [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-12-02 14:49:36,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-12-02 14:49:36,127 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-12-02 14:49:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-12-02 14:49:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure uli526x_init [2024-12-02 14:49:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure uli526x_init [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-12-02 14:49:36,128 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-12-02 14:49:36,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-12-02 14:49:36,875 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:49:36,877 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:49:37,353 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-12-02 14:49:49,680 INFO L727 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-12-02 14:49:50,303 INFO L? ?]: Removed 2240 outVars from TransFormulas that were not future-live. [2024-12-02 14:49:50,303 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:49:50,337 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:49:50,337 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2024-12-02 14:49:50,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:50 BoogieIcfgContainer [2024-12-02 14:49:50,337 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:49:50,339 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:49:50,340 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:49:50,344 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:49:50,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:49:32" (1/3) ... [2024-12-02 14:49:50,344 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a51b246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:49:50, skipping insertion in model container [2024-12-02 14:49:50,344 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:49:34" (2/3) ... [2024-12-02 14:49:50,345 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a51b246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:49:50, skipping insertion in model container [2024-12-02 14:49:50,345 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:49:50" (3/3) ... [2024-12-02 14:49:50,346 INFO L128 eAbstractionObserver]: Analyzing ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i [2024-12-02 14:49:50,361 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:49:50,363 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14__complex_emg__linux-alloc-spinlock__drivers-net-ethernet-dec-tulip-uli526x.cil.i that has 96 procedures, 1887 locations, 1 initial locations, 28 loop locations, and 1 error locations. [2024-12-02 14:49:50,452 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:49:50,464 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;@53a21a5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:49:50,464 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:49:50,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 1820 states, 1307 states have (on average 1.3335883703136955) internal successors, (1743), 1328 states have internal predecessors, (1743), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) [2024-12-02 14:49:50,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-12-02 14:49:50,504 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:49:50,504 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:49:50,505 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:49:50,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:49:50,510 INFO L85 PathProgramCache]: Analyzing trace with hash -35199534, now seen corresponding path program 1 times [2024-12-02 14:49:50,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:49:50,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353350108] [2024-12-02 14:49:50,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:49:50,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:49:55,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:49:56,488 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-12-02 14:49:56,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:49:56,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353350108] [2024-12-02 14:49:56,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353350108] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:49:56,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:49:56,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:49:56,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477894773] [2024-12-02 14:49:56,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:49:56,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:49:56,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:49:56,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:49:56,516 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:49:56,521 INFO L87 Difference]: Start difference. First operand has 1820 states, 1307 states have (on average 1.3335883703136955) internal successors, (1743), 1328 states have internal predecessors, (1743), 431 states have call successors, (431), 82 states have call predecessors, (431), 81 states have return successors, (425), 419 states have call predecessors, (425), 425 states have call successors, (425) Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 14:50:00,600 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:50:01,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:01,777 INFO L93 Difference]: Finished difference Result 4847 states and 7076 transitions. [2024-12-02 14:50:01,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:01,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 200 [2024-12-02 14:50:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:01,811 INFO L225 Difference]: With dead ends: 4847 [2024-12-02 14:50:01,812 INFO L226 Difference]: Without dead ends: 2975 [2024-12-02 14:50:01,828 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 14:50:01,830 INFO L435 NwaCegarLoop]: 2771 mSDtfsCounter, 1769 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 19 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1769 SdHoareTripleChecker+Valid, 5267 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:01,831 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1769 Valid, 5267 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 14:50:01,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2024-12-02 14:50:02,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2972. [2024-12-02 14:50:02,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2972 states, 2192 states have (on average 1.3275547445255473) internal successors, (2910), 2224 states have internal predecessors, (2910), 644 states have call successors, (644), 135 states have call predecessors, (644), 135 states have return successors, (644), 634 states have call predecessors, (644), 644 states have call successors, (644) [2024-12-02 14:50:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2972 states to 2972 states and 4198 transitions. [2024-12-02 14:50:02,054 INFO L78 Accepts]: Start accepts. Automaton has 2972 states and 4198 transitions. Word has length 200 [2024-12-02 14:50:02,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:02,055 INFO L471 AbstractCegarLoop]: Abstraction has 2972 states and 4198 transitions. [2024-12-02 14:50:02,055 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 14:50:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 2972 states and 4198 transitions. [2024-12-02 14:50:02,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2024-12-02 14:50:02,062 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:02,062 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:50:02,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-02 14:50:02,063 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:02,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:02,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1846226695, now seen corresponding path program 1 times [2024-12-02 14:50:02,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:02,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555026866] [2024-12-02 14:50:02,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:02,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:07,244 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 363 trivial. 0 not checked. [2024-12-02 14:50:07,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:07,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555026866] [2024-12-02 14:50:07,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555026866] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:07,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:07,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:50:07,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [220999530] [2024-12-02 14:50:07,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:07,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:50:07,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:07,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:50:07,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:50:07,248 INFO L87 Difference]: Start difference. First operand 2972 states and 4198 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 14:50:11,304 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 14:50:12,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:12,417 INFO L93 Difference]: Finished difference Result 8480 states and 11985 transitions. [2024-12-02 14:50:12,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:12,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 201 [2024-12-02 14:50:12,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:12,453 INFO L225 Difference]: With dead ends: 8480 [2024-12-02 14:50:12,453 INFO L226 Difference]: Without dead ends: 5531 [2024-12-02 14:50:12,467 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 14:50:12,468 INFO L435 NwaCegarLoop]: 2508 mSDtfsCounter, 2235 mSDsluCounter, 2420 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2235 SdHoareTripleChecker+Valid, 4928 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:12,468 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2235 Valid, 4928 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 14:50:12,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5531 states. [2024-12-02 14:50:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5531 to 5527. [2024-12-02 14:50:12,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5527 states, 4073 states have (on average 1.3299779032654064) internal successors, (5417), 4132 states have internal predecessors, (5417), 1194 states have call successors, (1194), 260 states have call predecessors, (1194), 259 states have return successors, (1195), 1173 states have call predecessors, (1195), 1194 states have call successors, (1195) [2024-12-02 14:50:12,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5527 states to 5527 states and 7806 transitions. [2024-12-02 14:50:12,720 INFO L78 Accepts]: Start accepts. Automaton has 5527 states and 7806 transitions. Word has length 201 [2024-12-02 14:50:12,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:12,721 INFO L471 AbstractCegarLoop]: Abstraction has 5527 states and 7806 transitions. [2024-12-02 14:50:12,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 14:50:12,721 INFO L276 IsEmpty]: Start isEmpty. Operand 5527 states and 7806 transitions. [2024-12-02 14:50:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-12-02 14:50:12,725 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:12,725 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 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] [2024-12-02 14:50:12,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:50:12,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:12,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:12,726 INFO L85 PathProgramCache]: Analyzing trace with hash -5219112, now seen corresponding path program 1 times [2024-12-02 14:50:12,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:12,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774400110] [2024-12-02 14:50:12,727 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:12,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:18,097 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-12-02 14:50:18,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:18,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774400110] [2024-12-02 14:50:18,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774400110] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:18,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:18,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:50:18,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007427915] [2024-12-02 14:50:18,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:18,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:50:18,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:18,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:50:18,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:50:18,099 INFO L87 Difference]: Start difference. First operand 5527 states and 7806 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 14:50:22,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:50:23,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:23,054 INFO L93 Difference]: Finished difference Result 16231 states and 22916 transitions. [2024-12-02 14:50:23,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:23,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 189 [2024-12-02 14:50:23,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:23,118 INFO L225 Difference]: With dead ends: 16231 [2024-12-02 14:50:23,118 INFO L226 Difference]: Without dead ends: 10727 [2024-12-02 14:50:23,143 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 14:50:23,143 INFO L435 NwaCegarLoop]: 2522 mSDtfsCounter, 2429 mSDsluCounter, 2432 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2429 SdHoareTripleChecker+Valid, 4954 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:23,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2429 Valid, 4954 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 1 Unknown, 0 Unchecked, 4.7s Time] [2024-12-02 14:50:23,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10727 states. [2024-12-02 14:50:23,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10727 to 10721. [2024-12-02 14:50:23,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10721 states, 7897 states have (on average 1.3283525389388375) internal successors, (10490), 8018 states have internal predecessors, (10490), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2024-12-02 14:50:23,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10721 states to 10721 states and 15121 transitions. [2024-12-02 14:50:23,669 INFO L78 Accepts]: Start accepts. Automaton has 10721 states and 15121 transitions. Word has length 189 [2024-12-02 14:50:23,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:23,670 INFO L471 AbstractCegarLoop]: Abstraction has 10721 states and 15121 transitions. [2024-12-02 14:50:23,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2024-12-02 14:50:23,671 INFO L276 IsEmpty]: Start isEmpty. Operand 10721 states and 15121 transitions. [2024-12-02 14:50:23,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-12-02 14:50:23,682 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:23,682 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:50:23,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 14:50:23,683 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:23,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:23,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1444159462, now seen corresponding path program 1 times [2024-12-02 14:50:23,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:23,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086470449] [2024-12-02 14:50:23,685 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:23,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:28,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-12-02 14:50:28,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:28,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086470449] [2024-12-02 14:50:28,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086470449] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:28,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:28,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:50:28,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697873693] [2024-12-02 14:50:28,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:28,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:50:28,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:28,680 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:50:28,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:50:28,680 INFO L87 Difference]: Start difference. First operand 10721 states and 15121 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 14:50:28,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:28,895 INFO L93 Difference]: Finished difference Result 21419 states and 30210 transitions. [2024-12-02 14:50:28,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:28,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 275 [2024-12-02 14:50:28,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:28,946 INFO L225 Difference]: With dead ends: 21419 [2024-12-02 14:50:28,946 INFO L226 Difference]: Without dead ends: 10721 [2024-12-02 14:50:28,974 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 14:50:28,974 INFO L435 NwaCegarLoop]: 2493 mSDtfsCounter, 2455 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2455 SdHoareTripleChecker+Valid, 2493 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:28,975 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2455 Valid, 2493 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:50:28,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10721 states. [2024-12-02 14:50:29,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10721 to 10721. [2024-12-02 14:50:29,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10721 states, 7897 states have (on average 1.3273394960111435) internal successors, (10482), 8018 states have internal predecessors, (10482), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2024-12-02 14:50:29,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10721 states to 10721 states and 15113 transitions. [2024-12-02 14:50:29,340 INFO L78 Accepts]: Start accepts. Automaton has 10721 states and 15113 transitions. Word has length 275 [2024-12-02 14:50:29,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:29,341 INFO L471 AbstractCegarLoop]: Abstraction has 10721 states and 15113 transitions. [2024-12-02 14:50:29,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 14:50:29,342 INFO L276 IsEmpty]: Start isEmpty. Operand 10721 states and 15113 transitions. [2024-12-02 14:50:29,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-12-02 14:50:29,347 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:29,347 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:50:29,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 14:50:29,347 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:29,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:29,348 INFO L85 PathProgramCache]: Analyzing trace with hash 452819996, now seen corresponding path program 1 times [2024-12-02 14:50:29,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:29,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485609702] [2024-12-02 14:50:29,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:29,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:34,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:34,621 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-12-02 14:50:34,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:34,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485609702] [2024-12-02 14:50:34,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485609702] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:34,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:34,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:50:34,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855596478] [2024-12-02 14:50:34,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:34,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:50:34,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:34,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:50:34,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:50:34,623 INFO L87 Difference]: Start difference. First operand 10721 states and 15113 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 14:50:35,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:35,050 INFO L93 Difference]: Finished difference Result 21411 states and 30186 transitions. [2024-12-02 14:50:35,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:35,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 275 [2024-12-02 14:50:35,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:35,108 INFO L225 Difference]: With dead ends: 21411 [2024-12-02 14:50:35,108 INFO L226 Difference]: Without dead ends: 10713 [2024-12-02 14:50:35,138 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 14:50:35,138 INFO L435 NwaCegarLoop]: 2485 mSDtfsCounter, 2448 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2448 SdHoareTripleChecker+Valid, 2485 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:35,138 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2448 Valid, 2485 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:50:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10713 states. [2024-12-02 14:50:35,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10713 to 10713. [2024-12-02 14:50:35,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10713 states, 7889 states have (on average 1.3236151603498543) internal successors, (10442), 8010 states have internal predecessors, (10442), 2312 states have call successors, (2312), 516 states have call predecessors, (2312), 511 states have return successors, (2319), 2262 states have call predecessors, (2319), 2312 states have call successors, (2319) [2024-12-02 14:50:35,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10713 states to 10713 states and 15073 transitions. [2024-12-02 14:50:35,645 INFO L78 Accepts]: Start accepts. Automaton has 10713 states and 15073 transitions. Word has length 275 [2024-12-02 14:50:35,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:35,645 INFO L471 AbstractCegarLoop]: Abstraction has 10713 states and 15073 transitions. [2024-12-02 14:50:35,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 14:50:35,646 INFO L276 IsEmpty]: Start isEmpty. Operand 10713 states and 15073 transitions. [2024-12-02 14:50:35,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-12-02 14:50:35,655 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:35,655 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 3, 3, 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] [2024-12-02 14:50:35,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 14:50:35,655 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:35,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:35,656 INFO L85 PathProgramCache]: Analyzing trace with hash -511655795, now seen corresponding path program 1 times [2024-12-02 14:50:35,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:35,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264435887] [2024-12-02 14:50:35,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:35,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 502 trivial. 0 not checked. [2024-12-02 14:50:40,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:40,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264435887] [2024-12-02 14:50:40,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264435887] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:40,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:40,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:50:40,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654662643] [2024-12-02 14:50:40,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:40,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:50:40,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:40,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:50:40,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:50:40,630 INFO L87 Difference]: Start difference. First operand 10713 states and 15073 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 14:50:44,675 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 14:50:46,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:46,013 INFO L93 Difference]: Finished difference Result 25579 states and 36028 transitions. [2024-12-02 14:50:46,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:46,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 278 [2024-12-02 14:50:46,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:46,089 INFO L225 Difference]: With dead ends: 25579 [2024-12-02 14:50:46,089 INFO L226 Difference]: Without dead ends: 14889 [2024-12-02 14:50:46,127 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 14:50:46,128 INFO L435 NwaCegarLoop]: 4164 mSDtfsCounter, 1695 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 6586 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:46,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1695 Valid, 6586 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 70 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 14:50:46,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14889 states. [2024-12-02 14:50:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14889 to 14883. [2024-12-02 14:50:46,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14883 states, 11005 states have (on average 1.3269422989550204) internal successors, (14603), 11164 states have internal predecessors, (14603), 3156 states have call successors, (3156), 726 states have call predecessors, (3156), 721 states have return successors, (3163), 3094 states have call predecessors, (3163), 3156 states have call successors, (3163) [2024-12-02 14:50:46,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14883 states to 14883 states and 20922 transitions. [2024-12-02 14:50:46,764 INFO L78 Accepts]: Start accepts. Automaton has 14883 states and 20922 transitions. Word has length 278 [2024-12-02 14:50:46,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:46,765 INFO L471 AbstractCegarLoop]: Abstraction has 14883 states and 20922 transitions. [2024-12-02 14:50:46,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 3 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-12-02 14:50:46,765 INFO L276 IsEmpty]: Start isEmpty. Operand 14883 states and 20922 transitions. [2024-12-02 14:50:46,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-12-02 14:50:46,778 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:46,778 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:50:46,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 14:50:46,778 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:46,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:46,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1985093504, now seen corresponding path program 1 times [2024-12-02 14:50:46,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:46,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611065101] [2024-12-02 14:50:46,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:46,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:50:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:50:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2024-12-02 14:50:51,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:50:51,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611065101] [2024-12-02 14:50:51,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611065101] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:50:51,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:50:51,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:50:51,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712609384] [2024-12-02 14:50:51,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:50:51,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:50:51,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:50:51,456 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:50:51,456 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:50:51,456 INFO L87 Difference]: Start difference. First operand 14883 states and 20922 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 14:50:55,495 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 14:50:56,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:50:56,822 INFO L93 Difference]: Finished difference Result 33887 states and 47666 transitions. [2024-12-02 14:50:56,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:50:56,823 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 352 [2024-12-02 14:50:56,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:50:56,885 INFO L225 Difference]: With dead ends: 33887 [2024-12-02 14:50:56,885 INFO L226 Difference]: Without dead ends: 19027 [2024-12-02 14:50:56,921 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 14:50:56,922 INFO L435 NwaCegarLoop]: 4169 mSDtfsCounter, 1689 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1689 SdHoareTripleChecker+Valid, 6598 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:50:56,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1689 Valid, 6598 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 14:50:56,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19027 states. [2024-12-02 14:50:57,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19027 to 19021. [2024-12-02 14:50:57,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19021 states, 14101 states have (on average 1.329267427841997) internal successors, (18744), 14298 states have internal predecessors, (18744), 3988 states have call successors, (3988), 936 states have call predecessors, (3988), 931 states have return successors, (3995), 3914 states have call predecessors, (3995), 3988 states have call successors, (3995) [2024-12-02 14:50:57,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19021 states to 19021 states and 26727 transitions. [2024-12-02 14:50:57,746 INFO L78 Accepts]: Start accepts. Automaton has 19021 states and 26727 transitions. Word has length 352 [2024-12-02 14:50:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:50:57,747 INFO L471 AbstractCegarLoop]: Abstraction has 19021 states and 26727 transitions. [2024-12-02 14:50:57,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 14:50:57,747 INFO L276 IsEmpty]: Start isEmpty. Operand 19021 states and 26727 transitions. [2024-12-02 14:50:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-12-02 14:50:57,761 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:50:57,761 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 9, 9, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:50:57,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 14:50:57,762 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:50:57,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:50:57,762 INFO L85 PathProgramCache]: Analyzing trace with hash 403470526, now seen corresponding path program 1 times [2024-12-02 14:50:57,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:50:57,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133669804] [2024-12-02 14:50:57,763 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:50:57,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:03,058 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 701 trivial. 0 not checked. [2024-12-02 14:51:03,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:03,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133669804] [2024-12-02 14:51:03,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133669804] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:03,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:03,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:51:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984598570] [2024-12-02 14:51:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:03,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:51:03,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:03,059 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:51:03,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:51:03,060 INFO L87 Difference]: Start difference. First operand 19021 states and 26727 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 14:51:03,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:03,990 INFO L93 Difference]: Finished difference Result 42346 states and 59490 transitions. [2024-12-02 14:51:03,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:51:03,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 352 [2024-12-02 14:51:03,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:04,067 INFO L225 Difference]: With dead ends: 42346 [2024-12-02 14:51:04,067 INFO L226 Difference]: Without dead ends: 23348 [2024-12-02 14:51:04,112 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 14:51:04,113 INFO L435 NwaCegarLoop]: 3022 mSDtfsCounter, 2438 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 4852 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:04,113 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 4852 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 14:51:04,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23348 states. [2024-12-02 14:51:04,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23348 to 23342. [2024-12-02 14:51:04,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23342 states, 17309 states have (on average 1.3297706395516784) internal successors, (23017), 17545 states have internal predecessors, (23017), 4881 states have call successors, (4881), 1161 states have call predecessors, (4881), 1151 states have return successors, (4888), 4790 states have call predecessors, (4888), 4881 states have call successors, (4888) [2024-12-02 14:51:05,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23342 states to 23342 states and 32786 transitions. [2024-12-02 14:51:05,024 INFO L78 Accepts]: Start accepts. Automaton has 23342 states and 32786 transitions. Word has length 352 [2024-12-02 14:51:05,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:05,024 INFO L471 AbstractCegarLoop]: Abstraction has 23342 states and 32786 transitions. [2024-12-02 14:51:05,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2024-12-02 14:51:05,024 INFO L276 IsEmpty]: Start isEmpty. Operand 23342 states and 32786 transitions. [2024-12-02 14:51:05,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2024-12-02 14:51:05,032 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:05,032 INFO L218 NwaCegarLoop]: trace histogram [17, 17, 9, 9, 9, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:05,032 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-02 14:51:05,032 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:05,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:05,032 INFO L85 PathProgramCache]: Analyzing trace with hash -1010722577, now seen corresponding path program 1 times [2024-12-02 14:51:05,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:05,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835621028] [2024-12-02 14:51:05,033 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:05,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:09,985 INFO L134 CoverageAnalysis]: Checked inductivity of 832 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2024-12-02 14:51:09,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:09,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835621028] [2024-12-02 14:51:09,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835621028] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:09,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:09,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:51:09,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609609492] [2024-12-02 14:51:09,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:09,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:51:09,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:09,987 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:51:09,987 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:51:09,988 INFO L87 Difference]: Start difference. First operand 23342 states and 32786 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-12-02 14:51:14,025 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 14:51:15,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:15,596 INFO L93 Difference]: Finished difference Result 51007 states and 71667 transitions. [2024-12-02 14:51:15,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:51:15,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) Word has length 379 [2024-12-02 14:51:15,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:15,715 INFO L225 Difference]: With dead ends: 51007 [2024-12-02 14:51:15,715 INFO L226 Difference]: Without dead ends: 27688 [2024-12-02 14:51:15,788 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 14:51:15,788 INFO L435 NwaCegarLoop]: 4221 mSDtfsCounter, 2132 mSDsluCounter, 2098 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 6319 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:15,789 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 6319 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 5.0s Time] [2024-12-02 14:51:15,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27688 states. [2024-12-02 14:51:16,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27688 to 27682. [2024-12-02 14:51:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27682 states, 20554 states have (on average 1.3297168434368005) internal successors, (27331), 20831 states have internal predecessors, (27331), 5759 states have call successors, (5759), 1378 states have call predecessors, (5759), 1368 states have return successors, (5766), 5654 states have call predecessors, (5766), 5759 states have call successors, (5766) [2024-12-02 14:51:16,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27682 states to 27682 states and 38856 transitions. [2024-12-02 14:51:16,690 INFO L78 Accepts]: Start accepts. Automaton has 27682 states and 38856 transitions. Word has length 379 [2024-12-02 14:51:16,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:16,690 INFO L471 AbstractCegarLoop]: Abstraction has 27682 states and 38856 transitions. [2024-12-02 14:51:16,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 3 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (40), 3 states have call predecessors, (40), 3 states have call successors, (40) [2024-12-02 14:51:16,691 INFO L276 IsEmpty]: Start isEmpty. Operand 27682 states and 38856 transitions. [2024-12-02 14:51:16,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2024-12-02 14:51:16,700 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:16,701 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:16,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-02 14:51:16,701 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:16,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:16,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1685080328, now seen corresponding path program 1 times [2024-12-02 14:51:16,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:16,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190978693] [2024-12-02 14:51:16,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:16,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:21,520 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 769 trivial. 0 not checked. [2024-12-02 14:51:21,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:21,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190978693] [2024-12-02 14:51:21,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190978693] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:21,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:21,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:51:21,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268529358] [2024-12-02 14:51:21,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:21,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:51:21,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:21,523 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:51:21,523 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:51:21,523 INFO L87 Difference]: Start difference. First operand 27682 states and 38856 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2024-12-02 14:51:25,560 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 14:51:26,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:26,966 INFO L93 Difference]: Finished difference Result 73316 states and 102296 transitions. [2024-12-02 14:51:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:51:26,966 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) Word has length 415 [2024-12-02 14:51:26,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:27,090 INFO L225 Difference]: With dead ends: 73316 [2024-12-02 14:51:27,090 INFO L226 Difference]: Without dead ends: 45657 [2024-12-02 14:51:27,154 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 14:51:27,155 INFO L435 NwaCegarLoop]: 3224 mSDtfsCounter, 2170 mSDsluCounter, 2418 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 5 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2170 SdHoareTripleChecker+Valid, 5642 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:27,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2170 Valid, 5642 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 12 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 14:51:27,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45657 states. [2024-12-02 14:51:28,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45657 to 45623. [2024-12-02 14:51:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45623 states, 33900 states have (on average 1.3192330383480826) internal successors, (44722), 34391 states have internal predecessors, (44722), 9327 states have call successors, (9327), 2421 states have call predecessors, (9327), 2395 states have return successors, (9342), 9108 states have call predecessors, (9342), 9327 states have call successors, (9342) [2024-12-02 14:51:28,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45623 states to 45623 states and 63391 transitions. [2024-12-02 14:51:28,431 INFO L78 Accepts]: Start accepts. Automaton has 45623 states and 63391 transitions. Word has length 415 [2024-12-02 14:51:28,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:28,432 INFO L471 AbstractCegarLoop]: Abstraction has 45623 states and 63391 transitions. [2024-12-02 14:51:28,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 3 states have internal predecessors, (152), 3 states have call successors, (57), 2 states have call predecessors, (57), 1 states have return successors, (53), 3 states have call predecessors, (53), 3 states have call successors, (53) [2024-12-02 14:51:28,432 INFO L276 IsEmpty]: Start isEmpty. Operand 45623 states and 63391 transitions. [2024-12-02 14:51:28,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2024-12-02 14:51:28,441 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:28,441 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:28,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-12-02 14:51:28,441 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:28,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:28,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2135327933, now seen corresponding path program 1 times [2024-12-02 14:51:28,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:28,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461112589] [2024-12-02 14:51:28,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:28,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 803 trivial. 0 not checked. [2024-12-02 14:51:33,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:33,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461112589] [2024-12-02 14:51:33,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461112589] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:33,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:33,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:51:33,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929811283] [2024-12-02 14:51:33,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:33,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:51:33,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:33,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:51:33,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:51:33,279 INFO L87 Difference]: Start difference. First operand 45623 states and 63391 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-12-02 14:51:37,320 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 14:51:40,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:40,190 INFO L93 Difference]: Finished difference Result 136463 states and 189701 transitions. [2024-12-02 14:51:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:51:40,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) Word has length 438 [2024-12-02 14:51:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:40,434 INFO L225 Difference]: With dead ends: 136463 [2024-12-02 14:51:40,435 INFO L226 Difference]: Without dead ends: 90863 [2024-12-02 14:51:40,529 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 14:51:40,530 INFO L435 NwaCegarLoop]: 3480 mSDtfsCounter, 2434 mSDsluCounter, 2473 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2434 SdHoareTripleChecker+Valid, 5953 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:40,530 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2434 Valid, 5953 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 14 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2024-12-02 14:51:40,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90863 states. [2024-12-02 14:51:42,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90863 to 90765. [2024-12-02 14:51:43,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90765 states, 67377 states have (on average 1.319099989610698) internal successors, (88877), 68431 states have internal predecessors, (88877), 18597 states have call successors, (18597), 4842 states have call predecessors, (18597), 4790 states have return successors, (18627), 18087 states have call predecessors, (18627), 18597 states have call successors, (18627) [2024-12-02 14:51:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90765 states to 90765 states and 126101 transitions. [2024-12-02 14:51:43,478 INFO L78 Accepts]: Start accepts. Automaton has 90765 states and 126101 transitions. Word has length 438 [2024-12-02 14:51:43,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:43,479 INFO L471 AbstractCegarLoop]: Abstraction has 90765 states and 126101 transitions. [2024-12-02 14:51:43,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 3 states have call successors, (59), 2 states have call predecessors, (59), 1 states have return successors, (55), 3 states have call predecessors, (55), 3 states have call successors, (55) [2024-12-02 14:51:43,479 INFO L276 IsEmpty]: Start isEmpty. Operand 90765 states and 126101 transitions. [2024-12-02 14:51:43,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2024-12-02 14:51:43,494 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:43,494 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:51:43,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-12-02 14:51:43,495 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:43,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:43,495 INFO L85 PathProgramCache]: Analyzing trace with hash 306507711, now seen corresponding path program 1 times [2024-12-02 14:51:43,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:43,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979817997] [2024-12-02 14:51:43,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:43,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:51:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:51:48,283 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 851 trivial. 0 not checked. [2024-12-02 14:51:48,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:51:48,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979817997] [2024-12-02 14:51:48,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979817997] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:51:48,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:51:48,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:51:48,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41946939] [2024-12-02 14:51:48,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:51:48,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:51:48,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:51:48,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:51:48,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:51:48,285 INFO L87 Difference]: Start difference. First operand 90765 states and 126101 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-12-02 14:51:52,339 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 14:51:56,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:51:56,211 INFO L93 Difference]: Finished difference Result 182665 states and 253056 transitions. [2024-12-02 14:51:56,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:51:56,212 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) Word has length 458 [2024-12-02 14:51:56,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:51:56,474 INFO L225 Difference]: With dead ends: 182665 [2024-12-02 14:51:56,474 INFO L226 Difference]: Without dead ends: 91923 [2024-12-02 14:51:56,657 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 14:51:56,657 INFO L435 NwaCegarLoop]: 2487 mSDtfsCounter, 115 mSDsluCounter, 2422 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 4 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 4909 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:51:56,657 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 4909 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 23 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2024-12-02 14:51:56,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91923 states. [2024-12-02 14:51:59,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91923 to 91923. [2024-12-02 14:51:59,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91923 states, 68188 states have (on average 1.3153780723881034) internal successors, (89693), 69242 states have internal predecessors, (89693), 18630 states have call successors, (18630), 5156 states have call predecessors, (18630), 5104 states have return successors, (18660), 18120 states have call predecessors, (18660), 18630 states have call successors, (18660) [2024-12-02 14:51:59,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91923 states to 91923 states and 126983 transitions. [2024-12-02 14:51:59,492 INFO L78 Accepts]: Start accepts. Automaton has 91923 states and 126983 transitions. Word has length 458 [2024-12-02 14:51:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:51:59,493 INFO L471 AbstractCegarLoop]: Abstraction has 91923 states and 126983 transitions. [2024-12-02 14:51:59,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 3 states have call successors, (60), 2 states have call predecessors, (60), 1 states have return successors, (56), 3 states have call predecessors, (56), 3 states have call successors, (56) [2024-12-02 14:51:59,493 INFO L276 IsEmpty]: Start isEmpty. Operand 91923 states and 126983 transitions. [2024-12-02 14:51:59,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-12-02 14:51:59,521 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:51:59,522 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 11, 11, 11, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:51:59,522 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-12-02 14:51:59,522 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:51:59,522 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:51:59,523 INFO L85 PathProgramCache]: Analyzing trace with hash -2118599283, now seen corresponding path program 1 times [2024-12-02 14:51:59,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:51:59,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110874980] [2024-12-02 14:51:59,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:51:59,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:04,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:04,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2024-12-02 14:52:04,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:04,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110874980] [2024-12-02 14:52:04,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110874980] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:04,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:04,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:52:04,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072515792] [2024-12-02 14:52:04,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:04,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:52:04,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:04,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:52:04,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:52:04,332 INFO L87 Difference]: Start difference. First operand 91923 states and 126983 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 14:52:08,385 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 14:52:11,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:11,822 INFO L93 Difference]: Finished difference Result 196253 states and 271225 transitions. [2024-12-02 14:52:11,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:52:11,822 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 456 [2024-12-02 14:52:11,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:12,118 INFO L225 Difference]: With dead ends: 196253 [2024-12-02 14:52:12,118 INFO L226 Difference]: Without dead ends: 104409 [2024-12-02 14:52:12,285 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 14:52:12,286 INFO L435 NwaCegarLoop]: 3991 mSDtfsCounter, 1688 mSDsluCounter, 2428 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 11 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1688 SdHoareTripleChecker+Valid, 6419 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:12,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1688 Valid, 6419 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 68 Invalid, 1 Unknown, 0 Unchecked, 5.1s Time] [2024-12-02 14:52:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104409 states. [2024-12-02 14:52:14,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104409 to 104391. [2024-12-02 14:52:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104391 states, 77576 states have (on average 1.316244714860266) internal successors, (102109), 78766 states have internal predecessors, (102109), 21002 states have call successors, (21002), 5864 states have call predecessors, (21002), 5812 states have return successors, (21032), 20432 states have call predecessors, (21032), 21002 states have call successors, (21032) [2024-12-02 14:52:15,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104391 states to 104391 states and 144143 transitions. [2024-12-02 14:52:15,273 INFO L78 Accepts]: Start accepts. Automaton has 104391 states and 144143 transitions. Word has length 456 [2024-12-02 14:52:15,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:15,273 INFO L471 AbstractCegarLoop]: Abstraction has 104391 states and 144143 transitions. [2024-12-02 14:52:15,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 14:52:15,274 INFO L276 IsEmpty]: Start isEmpty. Operand 104391 states and 144143 transitions. [2024-12-02 14:52:15,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-12-02 14:52:15,292 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:15,292 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 11, 11, 11, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:52:15,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-12-02 14:52:15,293 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:15,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:15,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1469771407, now seen corresponding path program 1 times [2024-12-02 14:52:15,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:15,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865072163] [2024-12-02 14:52:15,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:15,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:21,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 1175 trivial. 0 not checked. [2024-12-02 14:52:21,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:21,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865072163] [2024-12-02 14:52:21,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865072163] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:21,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:21,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:52:21,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622256556] [2024-12-02 14:52:21,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:21,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:52:21,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:21,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:52:21,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:52:21,358 INFO L87 Difference]: Start difference. First operand 104391 states and 144143 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 14:52:25,394 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 14:52:29,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:29,196 INFO L93 Difference]: Finished difference Result 221381 states and 305785 transitions. [2024-12-02 14:52:29,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:52:29,196 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 456 [2024-12-02 14:52:29,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:29,597 INFO L225 Difference]: With dead ends: 221381 [2024-12-02 14:52:29,597 INFO L226 Difference]: Without dead ends: 117069 [2024-12-02 14:52:29,847 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 14:52:29,847 INFO L435 NwaCegarLoop]: 4147 mSDtfsCounter, 1701 mSDsluCounter, 2429 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1701 SdHoareTripleChecker+Valid, 6576 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:29,848 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1701 Valid, 6576 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 69 Invalid, 1 Unknown, 0 Unchecked, 5.2s Time] [2024-12-02 14:52:29,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117069 states. [2024-12-02 14:52:33,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117069 to 117051. [2024-12-02 14:52:33,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.316709517469354) internal successors, (114717), 88450 states have internal predecessors, (114717), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:52:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 161527 transitions. [2024-12-02 14:52:33,517 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 161527 transitions. Word has length 456 [2024-12-02 14:52:33,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:52:33,517 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 161527 transitions. [2024-12-02 14:52:33,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 14:52:33,517 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 161527 transitions. [2024-12-02 14:52:33,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2024-12-02 14:52:33,541 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:52:33,541 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:52:33,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-12-02 14:52:33,541 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:52:33,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:52:33,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1811630524, now seen corresponding path program 1 times [2024-12-02 14:52:33,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:52:33,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303297912] [2024-12-02 14:52:33,542 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:52:33,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:52:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:52:38,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:52:38,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:52:38,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303297912] [2024-12-02 14:52:38,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303297912] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:52:38,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:52:38,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:52:38,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904326089] [2024-12-02 14:52:38,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:52:38,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:52:38,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:52:38,721 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:52:38,721 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:52:38,721 INFO L87 Difference]: Start difference. First operand 117051 states and 161527 transitions. Second operand has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:52:42,760 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 14:52:55,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:52:55,978 INFO L93 Difference]: Finished difference Result 234023 states and 324034 transitions. [2024-12-02 14:52:55,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:52:55,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 470 [2024-12-02 14:52:55,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:52:56,544 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:52:56,544 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:52:56,895 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 14:52:56,895 INFO L435 NwaCegarLoop]: 2487 mSDtfsCounter, 2319 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2319 SdHoareTripleChecker+Valid, 4169 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:52:56,895 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2319 Valid, 4169 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 806 Invalid, 1 Unknown, 0 Unchecked, 13.2s Time] [2024-12-02 14:52:56,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:53:00,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:53:00,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.3153551260272716) internal successors, (114599), 88450 states have internal predecessors, (114599), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:53:00,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 161409 transitions. [2024-12-02 14:53:00,984 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 161409 transitions. Word has length 470 [2024-12-02 14:53:00,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:00,985 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 161409 transitions. [2024-12-02 14:53:00,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.5) internal successors, (170), 4 states have internal predecessors, (170), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:53:00,985 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 161409 transitions. [2024-12-02 14:53:01,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 472 [2024-12-02 14:53:01,006 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:01,007 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:53:01,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-12-02 14:53:01,007 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:01,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:01,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1398656988, now seen corresponding path program 1 times [2024-12-02 14:53:01,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:01,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242105054] [2024-12-02 14:53:01,007 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:01,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:06,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:53:06,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:06,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242105054] [2024-12-02 14:53:06,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242105054] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:06,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:06,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:53:06,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178588502] [2024-12-02 14:53:06,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:06,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:53:06,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:06,238 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:53:06,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:53:06,239 INFO L87 Difference]: Start difference. First operand 117051 states and 161409 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:53:10,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:53:24,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:24,012 INFO L93 Difference]: Finished difference Result 234023 states and 323798 transitions. [2024-12-02 14:53:24,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:53:24,013 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 471 [2024-12-02 14:53:24,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:24,502 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:53:24,503 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:53:24,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:53:24,796 INFO L435 NwaCegarLoop]: 2485 mSDtfsCounter, 3236 mSDsluCounter, 1680 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 1569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3236 SdHoareTripleChecker+Valid, 4165 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:24,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3236 Valid, 4165 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 13.4s Time] [2024-12-02 14:53:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:53:28,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:53:28,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.314000734585189) internal successors, (114481), 88450 states have internal predecessors, (114481), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:53:29,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 161291 transitions. [2024-12-02 14:53:29,240 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 161291 transitions. Word has length 471 [2024-12-02 14:53:29,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:29,240 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 161291 transitions. [2024-12-02 14:53:29,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 5 states have internal predecessors, (171), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:53:29,241 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 161291 transitions. [2024-12-02 14:53:29,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2024-12-02 14:53:29,261 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:29,261 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:53:29,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-12-02 14:53:29,261 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:29,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:29,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2047128640, now seen corresponding path program 1 times [2024-12-02 14:53:29,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:29,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256129955] [2024-12-02 14:53:29,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:29,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:53:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:53:34,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:53:34,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:53:34,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256129955] [2024-12-02 14:53:34,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256129955] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:53:34,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:53:34,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:53:34,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342227148] [2024-12-02 14:53:34,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:53:34,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:53:34,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:53:34,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:53:34,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:53:34,912 INFO L87 Difference]: Start difference. First operand 117051 states and 161291 transitions. Second operand has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:53:38,952 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 14:53:53,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:53:53,129 INFO L93 Difference]: Finished difference Result 234023 states and 323562 transitions. [2024-12-02 14:53:53,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:53:53,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 472 [2024-12-02 14:53:53,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:53:53,578 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:53:53,578 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:53:54,024 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:53:54,025 INFO L435 NwaCegarLoop]: 2484 mSDtfsCounter, 3233 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 1569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3233 SdHoareTripleChecker+Valid, 4163 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.6s IncrementalHoareTripleChecker+Time [2024-12-02 14:53:54,025 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3233 Valid, 4163 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 13.6s Time] [2024-12-02 14:53:54,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:53:58,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:53:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.3126463431431064) internal successors, (114363), 88450 states have internal predecessors, (114363), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:53:58,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 161173 transitions. [2024-12-02 14:53:58,824 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 161173 transitions. Word has length 472 [2024-12-02 14:53:58,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:53:58,824 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 161173 transitions. [2024-12-02 14:53:58,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.4) internal successors, (172), 5 states have internal predecessors, (172), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:53:58,825 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 161173 transitions. [2024-12-02 14:53:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2024-12-02 14:53:58,844 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:53:58,844 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:53:58,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-12-02 14:53:58,844 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:53:58,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:53:58,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1377784104, now seen corresponding path program 1 times [2024-12-02 14:53:58,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:53:58,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107401960] [2024-12-02 14:53:58,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:53:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:04,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:54:04,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:04,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107401960] [2024-12-02 14:54:04,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107401960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:04,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:54:04,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:54:04,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386658079] [2024-12-02 14:54:04,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:04,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:54:04,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:04,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:54:04,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:04,498 INFO L87 Difference]: Start difference. First operand 117051 states and 161173 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:54:08,539 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:54:23,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:23,850 INFO L93 Difference]: Finished difference Result 234023 states and 323326 transitions. [2024-12-02 14:54:23,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:23,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 473 [2024-12-02 14:54:23,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:24,344 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:54:24,344 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:54:24,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:54:24,646 INFO L435 NwaCegarLoop]: 2483 mSDtfsCounter, 3230 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 1569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3230 SdHoareTripleChecker+Valid, 4161 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:24,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3230 Valid, 4161 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 13.3s Time] [2024-12-02 14:54:24,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:54:29,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:54:29,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.3112919517010238) internal successors, (114245), 88450 states have internal predecessors, (114245), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:54:30,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 161055 transitions. [2024-12-02 14:54:30,200 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 161055 transitions. Word has length 473 [2024-12-02 14:54:30,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:54:30,201 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 161055 transitions. [2024-12-02 14:54:30,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:54:30,201 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 161055 transitions. [2024-12-02 14:54:30,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2024-12-02 14:54:30,221 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:54:30,221 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:54:30,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-12-02 14:54:30,221 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:54:30,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:54:30,222 INFO L85 PathProgramCache]: Analyzing trace with hash -1988423364, now seen corresponding path program 1 times [2024-12-02 14:54:30,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:54:30,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327877312] [2024-12-02 14:54:30,222 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:54:30,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:54:34,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:54:35,540 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:54:35,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:54:35,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327877312] [2024-12-02 14:54:35,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327877312] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:54:35,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:54:35,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:54:35,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292327743] [2024-12-02 14:54:35,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:54:35,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:54:35,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:54:35,542 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:54:35,542 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:54:35,543 INFO L87 Difference]: Start difference. First operand 117051 states and 161055 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:54:39,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:54:55,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:54:55,679 INFO L93 Difference]: Finished difference Result 234023 states and 323090 transitions. [2024-12-02 14:54:55,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:54:55,680 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 474 [2024-12-02 14:54:55,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:54:56,253 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:54:56,253 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:54:56,604 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:54:56,605 INFO L435 NwaCegarLoop]: 2482 mSDtfsCounter, 3227 mSDsluCounter, 1677 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 1569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3227 SdHoareTripleChecker+Valid, 4159 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:54:56,605 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3227 Valid, 4159 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2024-12-02 14:54:56,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:55:02,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:55:02,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.3099375602589414) internal successors, (114127), 88450 states have internal predecessors, (114127), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:55:03,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 160937 transitions. [2024-12-02 14:55:03,247 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 160937 transitions. Word has length 474 [2024-12-02 14:55:03,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:03,248 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 160937 transitions. [2024-12-02 14:55:03,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:55:03,248 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 160937 transitions. [2024-12-02 14:55:03,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2024-12-02 14:55:03,268 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:03,268 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:03,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-12-02 14:55:03,269 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:03,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:03,269 INFO L85 PathProgramCache]: Analyzing trace with hash 671112660, now seen corresponding path program 1 times [2024-12-02 14:55:03,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:03,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486939168] [2024-12-02 14:55:03,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:03,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:07,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:08,464 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:55:08,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:08,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486939168] [2024-12-02 14:55:08,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486939168] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:08,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:08,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:55:08,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633323847] [2024-12-02 14:55:08,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:08,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:55:08,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:08,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:55:08,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:55:08,467 INFO L87 Difference]: Start difference. First operand 117051 states and 160937 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:55:12,512 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 14:55:28,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:55:28,277 INFO L93 Difference]: Finished difference Result 234023 states and 322854 transitions. [2024-12-02 14:55:28,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:55:28,278 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 475 [2024-12-02 14:55:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:55:28,718 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:55:28,718 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:55:28,948 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:55:28,948 INFO L435 NwaCegarLoop]: 2481 mSDtfsCounter, 3224 mSDsluCounter, 1676 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 1569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3224 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:55:28,948 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3224 Valid, 4157 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2024-12-02 14:55:29,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:55:35,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:55:35,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.3085831688168588) internal successors, (114009), 88450 states have internal predecessors, (114009), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:55:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 160819 transitions. [2024-12-02 14:55:36,300 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 160819 transitions. Word has length 475 [2024-12-02 14:55:36,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:55:36,300 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 160819 transitions. [2024-12-02 14:55:36,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:55:36,301 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 160819 transitions. [2024-12-02 14:55:36,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2024-12-02 14:55:36,322 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:55:36,322 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:55:36,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-12-02 14:55:36,322 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:55:36,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:55:36,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1626867384, now seen corresponding path program 1 times [2024-12-02 14:55:36,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:55:36,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364621886] [2024-12-02 14:55:36,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:55:36,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:55:41,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:55:42,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:55:42,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:55:42,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364621886] [2024-12-02 14:55:42,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364621886] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:55:42,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:55:42,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 14:55:42,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493693453] [2024-12-02 14:55:42,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:55:42,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:55:42,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:55:42,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:55:42,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:55:42,013 INFO L87 Difference]: Start difference. First operand 117051 states and 160819 transitions. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:55:46,052 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 14:56:02,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:02,111 INFO L93 Difference]: Finished difference Result 234023 states and 322618 transitions. [2024-12-02 14:56:02,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:02,111 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) Word has length 476 [2024-12-02 14:56:02,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:02,589 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:56:02,589 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:56:02,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-12-02 14:56:02,838 INFO L435 NwaCegarLoop]: 2480 mSDtfsCounter, 3221 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 1569 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3221 SdHoareTripleChecker+Valid, 4155 SdHoareTripleChecker+Invalid, 2378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1569 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:02,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3221 Valid, 4155 Invalid, 2378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1569 Valid, 808 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2024-12-02 14:56:02,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:56:09,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:56:09,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.3072287773747762) internal successors, (113891), 88450 states have internal predecessors, (113891), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:56:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 160701 transitions. [2024-12-02 14:56:10,402 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 160701 transitions. Word has length 476 [2024-12-02 14:56:10,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:10,402 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 160701 transitions. [2024-12-02 14:56:10,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 3 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:56:10,402 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 160701 transitions. [2024-12-02 14:56:10,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-12-02 14:56:10,423 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:10,423 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:10,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-12-02 14:56:10,424 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:10,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:10,424 INFO L85 PathProgramCache]: Analyzing trace with hash 1305009360, now seen corresponding path program 1 times [2024-12-02 14:56:10,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:10,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758159430] [2024-12-02 14:56:10,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:10,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:15,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:15,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2024-12-02 14:56:15,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:15,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758159430] [2024-12-02 14:56:15,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758159430] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:15,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:15,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:56:15,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543752715] [2024-12-02 14:56:15,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:15,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:15,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:15,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:15,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:15,827 INFO L87 Difference]: Start difference. First operand 117051 states and 160701 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 14:56:21,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:21,885 INFO L93 Difference]: Finished difference Result 234023 states and 321308 transitions. [2024-12-02 14:56:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:21,886 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) Word has length 477 [2024-12-02 14:56:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:22,405 INFO L225 Difference]: With dead ends: 234023 [2024-12-02 14:56:22,405 INFO L226 Difference]: Without dead ends: 117051 [2024-12-02 14:56:22,644 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 14:56:22,645 INFO L435 NwaCegarLoop]: 2480 mSDtfsCounter, 2441 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2441 SdHoareTripleChecker+Valid, 2480 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:22,645 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2441 Valid, 2480 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:56:22,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117051 states. [2024-12-02 14:56:29,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117051 to 117051. [2024-12-02 14:56:29,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117051 states, 87124 states have (on average 1.305759606996924) internal successors, (113763), 88450 states have internal predecessors, (113763), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:56:29,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117051 states to 117051 states and 160573 transitions. [2024-12-02 14:56:30,130 INFO L78 Accepts]: Start accepts. Automaton has 117051 states and 160573 transitions. Word has length 477 [2024-12-02 14:56:30,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:30,131 INFO L471 AbstractCegarLoop]: Abstraction has 117051 states and 160573 transitions. [2024-12-02 14:56:30,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 3 states have call successors, (51), 2 states have call predecessors, (51), 1 states have return successors, (45), 3 states have call predecessors, (45), 3 states have call successors, (45) [2024-12-02 14:56:30,131 INFO L276 IsEmpty]: Start isEmpty. Operand 117051 states and 160573 transitions. [2024-12-02 14:56:30,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2024-12-02 14:56:30,152 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:30,152 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:30,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-12-02 14:56:30,153 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:30,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:30,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1768346382, now seen corresponding path program 1 times [2024-12-02 14:56:30,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:30,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212765621] [2024-12-02 14:56:30,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:30,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:56:36,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:36,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212765621] [2024-12-02 14:56:36,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212765621] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:36,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:36,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 14:56:36,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896929406] [2024-12-02 14:56:36,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:36,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 14:56:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:36,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:56:36,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:56:36,197 INFO L87 Difference]: Start difference. First operand 117051 states and 160573 transitions. Second operand has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:56:42,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:56:42,801 INFO L93 Difference]: Finished difference Result 234123 states and 321484 transitions. [2024-12-02 14:56:42,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:56:42,802 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 477 [2024-12-02 14:56:42,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:56:43,315 INFO L225 Difference]: With dead ends: 234123 [2024-12-02 14:56:43,315 INFO L226 Difference]: Without dead ends: 117151 [2024-12-02 14:56:43,559 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 14:56:43,560 INFO L435 NwaCegarLoop]: 2480 mSDtfsCounter, 0 mSDsluCounter, 2476 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4956 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:56:43,560 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4956 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:56:43,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117151 states. [2024-12-02 14:56:49,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117151 to 117151. [2024-12-02 14:56:49,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117151 states, 87224 states have (on average 1.3054090617261305) internal successors, (113863), 88550 states have internal predecessors, (113863), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:56:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117151 states to 117151 states and 160673 transitions. [2024-12-02 14:56:49,991 INFO L78 Accepts]: Start accepts. Automaton has 117151 states and 160673 transitions. Word has length 477 [2024-12-02 14:56:49,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:56:49,992 INFO L471 AbstractCegarLoop]: Abstraction has 117151 states and 160673 transitions. [2024-12-02 14:56:49,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.0) internal successors, (177), 3 states have internal predecessors, (177), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:56:49,992 INFO L276 IsEmpty]: Start isEmpty. Operand 117151 states and 160673 transitions. [2024-12-02 14:56:50,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 14:56:50,014 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:56:50,014 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:56:50,014 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-12-02 14:56:50,015 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:56:50,015 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:56:50,015 INFO L85 PathProgramCache]: Analyzing trace with hash -1080278832, now seen corresponding path program 1 times [2024-12-02 14:56:50,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:56:50,015 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856782638] [2024-12-02 14:56:50,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:56:50,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:56:55,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:56:56,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1298 trivial. 0 not checked. [2024-12-02 14:56:56,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:56:56,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856782638] [2024-12-02 14:56:56,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856782638] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:56:56,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:56:56,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 14:56:56,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87418257] [2024-12-02 14:56:56,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:56:56,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 14:56:56,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:56:56,004 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:56:56,004 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:56:56,004 INFO L87 Difference]: Start difference. First operand 117151 states and 160673 transitions. Second operand has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:57:01,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:01,938 INFO L93 Difference]: Finished difference Result 234523 states and 321984 transitions. [2024-12-02 14:57:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:57:01,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 478 [2024-12-02 14:57:01,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:02,668 INFO L225 Difference]: With dead ends: 234523 [2024-12-02 14:57:02,668 INFO L226 Difference]: Without dead ends: 117451 [2024-12-02 14:57:02,919 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 14:57:02,919 INFO L435 NwaCegarLoop]: 2478 mSDtfsCounter, 1 mSDsluCounter, 4950 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 7428 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:57:02,920 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 7428 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:57:02,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117451 states. [2024-12-02 14:57:08,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117451 to 117451. [2024-12-02 14:57:08,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117451 states, 87524 states have (on average 1.3043622320734884) internal successors, (114163), 88850 states have internal predecessors, (114163), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:57:09,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117451 states to 117451 states and 160973 transitions. [2024-12-02 14:57:09,517 INFO L78 Accepts]: Start accepts. Automaton has 117451 states and 160973 transitions. Word has length 478 [2024-12-02 14:57:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:57:09,518 INFO L471 AbstractCegarLoop]: Abstraction has 117451 states and 160973 transitions. [2024-12-02 14:57:09,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.5) internal successors, (178), 4 states have internal predecessors, (178), 2 states have call successors, (50), 2 states have call predecessors, (50), 1 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:57:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 117451 states and 160973 transitions. [2024-12-02 14:57:09,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2024-12-02 14:57:09,539 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:57:09,539 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:57:09,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-12-02 14:57:09,540 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:57:09,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:57:09,540 INFO L85 PathProgramCache]: Analyzing trace with hash -805519218, now seen corresponding path program 1 times [2024-12-02 14:57:09,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:57:09,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969949188] [2024-12-02 14:57:09,540 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:09,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:57:14,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2024-12-02 14:57:23,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:57:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969949188] [2024-12-02 14:57:23,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969949188] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:57:23,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1002331526] [2024-12-02 14:57:23,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:57:23,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:57:23,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:57:23,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:57:23,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:57:29,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:57:29,917 INFO L256 TraceCheckSpWp]: Trace formula consists of 4634 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-12-02 14:57:29,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:57:30,639 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2024-12-02 14:57:30,944 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2024-12-02 14:57:30,944 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:57:30,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1002331526] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:57:30,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:57:30,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 14:57:30,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162297271] [2024-12-02 14:57:30,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:57:30,945 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:57:30,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:57:30,945 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:57:30,946 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:57:30,946 INFO L87 Difference]: Start difference. First operand 117451 states and 160973 transitions. Second operand has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:57:34,988 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 14:57:39,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:57:52,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:57:52,364 INFO L93 Difference]: Finished difference Result 237223 states and 325620 transitions. [2024-12-02 14:57:52,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:57:52,365 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 478 [2024-12-02 14:57:52,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:57:53,079 INFO L225 Difference]: With dead ends: 237223 [2024-12-02 14:57:53,079 INFO L226 Difference]: Without dead ends: 119851 [2024-12-02 14:57:53,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2024-12-02 14:57:53,502 INFO L435 NwaCegarLoop]: 2463 mSDtfsCounter, 45 mSDsluCounter, 6946 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 9409 SdHoareTripleChecker+Invalid, 517 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2024-12-02 14:57:53,502 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 9409 Invalid, 517 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 514 Invalid, 2 Unknown, 0 Unchecked, 14.8s Time] [2024-12-02 14:57:53,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119851 states. [2024-12-02 14:58:00,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119851 to 117251. [2024-12-02 14:58:00,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117251 states, 87324 states have (on average 1.303914158765059) internal successors, (113863), 88650 states have internal predecessors, (113863), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:58:00,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117251 states to 117251 states and 160673 transitions. [2024-12-02 14:58:01,099 INFO L78 Accepts]: Start accepts. Automaton has 117251 states and 160673 transitions. Word has length 478 [2024-12-02 14:58:01,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:01,100 INFO L471 AbstractCegarLoop]: Abstraction has 117251 states and 160673 transitions. [2024-12-02 14:58:01,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.0) internal successors, (180), 5 states have internal predecessors, (180), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:58:01,100 INFO L276 IsEmpty]: Start isEmpty. Operand 117251 states and 160673 transitions. [2024-12-02 14:58:01,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-12-02 14:58:01,122 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:01,122 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:01,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:58:01,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:58:01,323 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:01,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:01,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1425457266, now seen corresponding path program 1 times [2024-12-02 14:58:01,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:58:01,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119509497] [2024-12-02 14:58:01,323 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:01,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:58:06,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:12,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2024-12-02 14:58:12,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:58:12,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119509497] [2024-12-02 14:58:12,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119509497] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:58:12,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1191649560] [2024-12-02 14:58:12,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:12,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:58:12,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:58:12,428 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:58:12,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:58:18,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:18,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 4638 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 14:58:18,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:58:19,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 14:58:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2024-12-02 14:58:19,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:58:19,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1191649560] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:58:19,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:58:19,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 14:58:19,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050754135] [2024-12-02 14:58:19,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:58:19,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:58:19,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:58:19,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:58:19,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:58:19,840 INFO L87 Difference]: Start difference. First operand 117251 states and 160673 transitions. Second operand has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:58:23,885 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 14:58:28,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:58:40,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:58:40,293 INFO L93 Difference]: Finished difference Result 235223 states and 322620 transitions. [2024-12-02 14:58:40,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:58:40,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 479 [2024-12-02 14:58:40,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:58:41,030 INFO L225 Difference]: With dead ends: 235223 [2024-12-02 14:58:41,030 INFO L226 Difference]: Without dead ends: 117951 [2024-12-02 14:58:41,259 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 477 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2024-12-02 14:58:41,260 INFO L435 NwaCegarLoop]: 2480 mSDtfsCounter, 6 mSDsluCounter, 6990 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 9470 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:58:41,260 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 9470 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 471 Invalid, 2 Unknown, 0 Unchecked, 14.2s Time] [2024-12-02 14:58:41,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117951 states. [2024-12-02 14:58:47,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117951 to 117351. [2024-12-02 14:58:47,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117351 states, 87424 states have (on average 1.3035665263543192) internal successors, (113963), 88750 states have internal predecessors, (113963), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:58:47,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117351 states to 117351 states and 160773 transitions. [2024-12-02 14:58:48,203 INFO L78 Accepts]: Start accepts. Automaton has 117351 states and 160773 transitions. Word has length 479 [2024-12-02 14:58:48,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:58:48,203 INFO L471 AbstractCegarLoop]: Abstraction has 117351 states and 160773 transitions. [2024-12-02 14:58:48,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.2) internal successors, (181), 5 states have internal predecessors, (181), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:58:48,204 INFO L276 IsEmpty]: Start isEmpty. Operand 117351 states and 160773 transitions. [2024-12-02 14:58:48,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-12-02 14:58:48,225 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:58:48,225 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:58:48,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:58:48,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:58:48,426 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:58:48,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:58:48,426 INFO L85 PathProgramCache]: Analyzing trace with hash -96752734, now seen corresponding path program 1 times [2024-12-02 14:58:48,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:58:48,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427650071] [2024-12-02 14:58:48,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:48,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:58:53,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:58:59,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2024-12-02 14:58:59,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:58:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427650071] [2024-12-02 14:58:59,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427650071] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:58:59,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262525364] [2024-12-02 14:58:59,458 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:58:59,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:58:59,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:58:59,459 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:58:59,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:59:06,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:59:06,361 INFO L256 TraceCheckSpWp]: Trace formula consists of 4639 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-02 14:59:06,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:59:06,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-12-02 14:59:06,942 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2024-12-02 14:59:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2024-12-02 14:59:07,265 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:59:07,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262525364] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:59:07,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:59:07,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [10] total 13 [2024-12-02 14:59:07,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032568026] [2024-12-02 14:59:07,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:59:07,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 14:59:07,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:59:07,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:59:07,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:59:07,267 INFO L87 Difference]: Start difference. First operand 117351 states and 160773 transitions. Second operand has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:59:11,310 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 14:59:15,574 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 14:59:28,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:59:28,082 INFO L93 Difference]: Finished difference Result 234823 states and 321984 transitions. [2024-12-02 14:59:28,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:59:28,082 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) Word has length 480 [2024-12-02 14:59:28,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:59:28,678 INFO L225 Difference]: With dead ends: 234823 [2024-12-02 14:59:28,678 INFO L226 Difference]: Without dead ends: 117451 [2024-12-02 14:59:28,977 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 478 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2024-12-02 14:59:28,977 INFO L435 NwaCegarLoop]: 2474 mSDtfsCounter, 1 mSDsluCounter, 6984 mSDsCounter, 0 mSdLazyCounter, 460 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9458 SdHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 460 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.3s IncrementalHoareTripleChecker+Time [2024-12-02 14:59:28,978 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9458 Invalid, 463 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 460 Invalid, 2 Unknown, 0 Unchecked, 14.3s Time] [2024-12-02 14:59:29,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117451 states. [2024-12-02 14:59:35,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117451 to 117351. [2024-12-02 14:59:35,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117351 states, 87424 states have (on average 1.3035665263543192) internal successors, (113963), 88750 states have internal predecessors, (113963), 23390 states have call successors, (23390), 6588 states have call predecessors, (23390), 6536 states have return successors, (23420), 22760 states have call predecessors, (23420), 23390 states have call successors, (23420) [2024-12-02 14:59:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117351 states to 117351 states and 160773 transitions. [2024-12-02 14:59:36,185 INFO L78 Accepts]: Start accepts. Automaton has 117351 states and 160773 transitions. Word has length 480 [2024-12-02 14:59:36,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:59:36,185 INFO L471 AbstractCegarLoop]: Abstraction has 117351 states and 160773 transitions. [2024-12-02 14:59:36,185 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.4) internal successors, (182), 5 states have internal predecessors, (182), 2 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (44), 2 states have call predecessors, (44), 2 states have call successors, (44) [2024-12-02 14:59:36,185 INFO L276 IsEmpty]: Start isEmpty. Operand 117351 states and 160773 transitions. [2024-12-02 14:59:36,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 482 [2024-12-02 14:59:36,210 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:59:36,210 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:59:36,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:59:36,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:59:36,410 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:59:36,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:59:36,411 INFO L85 PathProgramCache]: Analyzing trace with hash 948674805, now seen corresponding path program 1 times [2024-12-02 14:59:36,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:59:36,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277925784] [2024-12-02 14:59:36,411 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:59:36,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:59:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:59:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1286 trivial. 0 not checked. [2024-12-02 14:59:48,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:59:48,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277925784] [2024-12-02 14:59:48,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277925784] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:59:48,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [871769323] [2024-12-02 14:59:48,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:59:48,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:59:48,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:59:48,693 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:59:48,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:59:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:59:55,579 INFO L256 TraceCheckSpWp]: Trace formula consists of 4638 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 14:59:55,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:59:59,547 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 915 trivial. 0 not checked. [2024-12-02 14:59:59,547 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:59:59,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [871769323] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:59:59,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:59:59,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 20 [2024-12-02 14:59:59,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656375351] [2024-12-02 14:59:59,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:59:59,548 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-12-02 14:59:59,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:59:59,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-12-02 14:59:59,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=340, Unknown=0, NotChecked=0, Total=380 [2024-12-02 14:59:59,549 INFO L87 Difference]: Start difference. First operand 117351 states and 160773 transitions. Second operand has 12 states, 11 states have (on average 20.181818181818183) internal successors, (222), 11 states have internal predecessors, (222), 5 states have call successors, (53), 3 states have call predecessors, (53), 5 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2024-12-02 15:00:03,592 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 15:00:07,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:00:12,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 15:00:43,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:00:43,542 INFO L93 Difference]: Finished difference Result 305363 states and 418201 transitions. [2024-12-02 15:00:43,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-12-02 15:00:43,543 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 20.181818181818183) internal successors, (222), 11 states have internal predecessors, (222), 5 states have call successors, (53), 3 states have call predecessors, (53), 5 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) Word has length 481 [2024-12-02 15:00:43,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:00:44,531 INFO L225 Difference]: With dead ends: 305363 [2024-12-02 15:00:44,532 INFO L226 Difference]: Without dead ends: 187851 [2024-12-02 15:00:44,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 472 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2024-12-02 15:00:44,970 INFO L435 NwaCegarLoop]: 4586 mSDtfsCounter, 2102 mSDsluCounter, 37490 mSDsCounter, 0 mSdLazyCounter, 1776 mSolverCounterSat, 7 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2132 SdHoareTripleChecker+Valid, 42076 SdHoareTripleChecker+Invalid, 1786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1776 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.7s IncrementalHoareTripleChecker+Time [2024-12-02 15:00:44,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2132 Valid, 42076 Invalid, 1786 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 1776 Invalid, 3 Unknown, 0 Unchecked, 31.7s Time] [2024-12-02 15:00:45,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187851 states. [2024-12-02 15:00:56,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187851 to 186933. [2024-12-02 15:00:56,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186933 states, 139296 states have (on average 1.304438031242821) internal successors, (181703), 141466 states have internal predecessors, (181703), 37286 states have call successors, (37286), 10402 states have call predecessors, (37286), 10350 states have return successors, (37324), 36248 states have call predecessors, (37324), 37286 states have call successors, (37324) [2024-12-02 15:00:56,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186933 states to 186933 states and 256313 transitions. [2024-12-02 15:00:56,902 INFO L78 Accepts]: Start accepts. Automaton has 186933 states and 256313 transitions. Word has length 481 [2024-12-02 15:00:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:00:56,902 INFO L471 AbstractCegarLoop]: Abstraction has 186933 states and 256313 transitions. [2024-12-02 15:00:56,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 20.181818181818183) internal successors, (222), 11 states have internal predecessors, (222), 5 states have call successors, (53), 3 states have call predecessors, (53), 5 states have return successors, (47), 5 states have call predecessors, (47), 5 states have call successors, (47) [2024-12-02 15:00:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 186933 states and 256313 transitions. [2024-12-02 15:00:56,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-12-02 15:00:56,933 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:00:56,933 INFO L218 NwaCegarLoop]: trace histogram [21, 21, 12, 12, 12, 10, 10, 10, 10, 10, 10, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:00:56,953 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-12-02 15:00:57,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_433a2b1c-e72d-4234-9369-aec549ef5d22/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-12-02 15:00:57,133 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:00:57,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:00:57,134 INFO L85 PathProgramCache]: Analyzing trace with hash -927697971, now seen corresponding path program 1 times [2024-12-02 15:00:57,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:00:57,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81467901] [2024-12-02 15:00:57,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:00:57,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:03,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 1230 trivial. 0 not checked. [2024-12-02 15:01:04,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:04,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81467901] [2024-12-02 15:01:04,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [81467901] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:04,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:04,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-02 15:01:04,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246554880] [2024-12-02 15:01:04,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:04,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 15:01:04,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:04,570 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 15:01:04,570 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:01:04,570 INFO L87 Difference]: Start difference. First operand 186933 states and 256313 transitions. Second operand has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 15:01:15,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 15:01:15,351 INFO L93 Difference]: Finished difference Result 373883 states and 512660 transitions. [2024-12-02 15:01:15,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 15:01:15,352 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) Word has length 500 [2024-12-02 15:01:15,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 15:01:16,380 INFO L225 Difference]: With dead ends: 373883 [2024-12-02 15:01:16,380 INFO L226 Difference]: Without dead ends: 187029 [2024-12-02 15:01:16,732 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 15:01:16,732 INFO L435 NwaCegarLoop]: 2477 mSDtfsCounter, 0 mSDsluCounter, 7417 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 9894 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 15:01:16,732 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 9894 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 15:01:16,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187029 states. [2024-12-02 15:01:28,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187029 to 186981. [2024-12-02 15:01:28,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186981 states, 139344 states have (on average 1.304333161097715) internal successors, (181751), 141514 states have internal predecessors, (181751), 37286 states have call successors, (37286), 10402 states have call predecessors, (37286), 10350 states have return successors, (37324), 36248 states have call predecessors, (37324), 37286 states have call successors, (37324) [2024-12-02 15:01:28,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186981 states to 186981 states and 256361 transitions. [2024-12-02 15:01:29,152 INFO L78 Accepts]: Start accepts. Automaton has 186981 states and 256361 transitions. Word has length 500 [2024-12-02 15:01:29,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 15:01:29,152 INFO L471 AbstractCegarLoop]: Abstraction has 186981 states and 256361 transitions. [2024-12-02 15:01:29,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.6) internal successors, (213), 5 states have internal predecessors, (213), 2 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (48), 2 states have call predecessors, (48), 2 states have call successors, (48) [2024-12-02 15:01:29,152 INFO L276 IsEmpty]: Start isEmpty. Operand 186981 states and 256361 transitions. [2024-12-02 15:01:29,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-12-02 15:01:29,183 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 15:01:29,183 INFO L218 NwaCegarLoop]: trace histogram [15, 15, 12, 12, 10, 10, 9, 9, 9, 9, 9, 9, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:01:29,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-12-02 15:01:29,183 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 15:01:29,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 15:01:29,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1808144425, now seen corresponding path program 1 times [2024-12-02 15:01:29,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 15:01:29,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854450464] [2024-12-02 15:01:29,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 15:01:29,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 15:01:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 15:01:34,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1037 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 1016 trivial. 0 not checked. [2024-12-02 15:01:34,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 15:01:34,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854450464] [2024-12-02 15:01:34,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854450464] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 15:01:34,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 15:01:34,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 15:01:34,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857013533] [2024-12-02 15:01:34,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 15:01:34,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 15:01:34,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 15:01:34,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 15:01:34,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 15:01:34,248 INFO L87 Difference]: Start difference. First operand 186981 states and 256361 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (64), 3 states have call predecessors, (64), 3 states have call successors, (64) [2024-12-02 15:01:38,287 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 []