./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a82ce6420bb3a33f545de9c61d1c9b088648b3b20e86d3c3faffeeee8d72c08d --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:33:57,336 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:33:57,434 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:33:57,439 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:33:57,442 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:33:57,485 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:33:57,487 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:33:57,488 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:33:57,489 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:33:57,490 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:33:57,491 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:33:57,491 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:33:57,492 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:33:57,492 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:33:57,493 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:33:57,495 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:33:57,497 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:33:57,497 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:33:57,500 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:33:57,501 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:33:57,501 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:33:57,502 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:33:57,505 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:33:57,506 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:33:57,506 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:33:57,506 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:33:57,507 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:33:57,507 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:33:57,507 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:33:57,508 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:33:57,509 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:33:57,510 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:33:57,510 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:33:57,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:33:57,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:33:57,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:33:57,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:33:57,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:33:57,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:33:57,513 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:33:57,513 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:33:57,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:33:57,514 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:33:57,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:33:57,514 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a82ce6420bb3a33f545de9c61d1c9b088648b3b20e86d3c3faffeeee8d72c08d [2024-11-09 05:33:57,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:33:57,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:33:57,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:33:57,879 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:33:57,879 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:33:57,881 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i Unable to find full path for "g++" [2024-11-09 05:34:00,058 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:34:00,713 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:34:00,713 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i [2024-11-09 05:34:00,776 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/data/8be2308f5/0504d92a7cd3410e977b8328fdec42f1/FLAG1fde423bb [2024-11-09 05:34:01,119 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/data/8be2308f5/0504d92a7cd3410e977b8328fdec42f1 [2024-11-09 05:34:01,121 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:34:01,123 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:34:01,124 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:34:01,125 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:34:01,132 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:34:01,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:34:01" (1/1) ... [2024-11-09 05:34:01,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2611e56a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:01, skipping insertion in model container [2024-11-09 05:34:01,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:34:01" (1/1) ... [2024-11-09 05:34:01,318 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:34:04,680 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_f265a2c6-db27-45bd-b3d0-3f0018322841/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342349,342362] [2024-11-09 05:34:04,686 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_f265a2c6-db27-45bd-b3d0-3f0018322841/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342494,342507] [2024-11-09 05:34:04,755 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:34:04,806 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:34:04,969 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"); [5426] [2024-11-09 05:34:04,971 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)); [5433] [2024-11-09 05:34:04,972 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5440] [2024-11-09 05:34:04,978 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)); [5497-5498] [2024-11-09 05:34:04,978 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"); [5503-5505] [2024-11-09 05:34:04,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ (" addl %1,%0\n adcl $0xffff,%0": "=r" (sum): "r" (sum << 16), "0" (sum & 4294901760U)); [5607] [2024-11-09 05:34:04,988 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)); [5671-5672] [2024-11-09 05:34:04,993 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)); [5705-5706] [2024-11-09 05:34:05,001 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" (103), "i" (12UL)); [5742-5743] [2024-11-09 05:34:05,003 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" (115), "i" (12UL)); [5779-5780] [2024-11-09 05:34:05,017 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/linux/netdevice.h"), "i" (502), "i" (12UL)); [6093-6094] [2024-11-09 05:34:05,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6100] [2024-11-09 05:34:05,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6731] [2024-11-09 05:34:05,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6816] [2024-11-09 05:34:05,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [6935] [2024-11-09 05:34:05,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6980] [2024-11-09 05:34:05,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7061] [2024-11-09 05:34:05,073 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7159] [2024-11-09 05:34:05,086 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7309] [2024-11-09 05:34:05,088 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [7344] [2024-11-09 05:34:05,115 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7674] [2024-11-09 05:34:05,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8105] [2024-11-09 05:34:05,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8132] [2024-11-09 05:34:05,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8170] [2024-11-09 05:34:05,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("lfence": : : "memory"); [8319] [2024-11-09 05:34:05,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8681] [2024-11-09 05:34:05,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [8756] [2024-11-09 05:34:05,356 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_f265a2c6-db27-45bd-b3d0-3f0018322841/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342349,342362] [2024-11-09 05:34:05,357 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_f265a2c6-db27-45bd-b3d0-3f0018322841/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i[342494,342507] [2024-11-09 05:34:05,366 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:34:05,628 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:34:05,629 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05 WrapperNode [2024-11-09 05:34:05,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:34:05,631 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:34:05,631 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:34:05,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:34:05,640 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:05,754 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,009 INFO L138 Inliner]: procedures = 455, calls = 2276, calls flagged for inlining = 223, calls inlined = 189, statements flattened = 5764 [2024-11-09 05:34:06,010 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:34:06,011 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:34:06,011 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:34:06,011 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:34:06,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,025 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,212 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,353 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,372 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:34:06,404 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:34:06,404 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:34:06,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:34:06,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (1/1) ... [2024-11-09 05:34:06,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:34:06,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:34:06,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:34:06,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:34:06,483 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 05:34:06,483 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 05:34:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:34:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:34:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-09 05:34:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-09 05:34:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 05:34:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 05:34:06,484 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:34:06,484 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:34:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-09 05:34:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-09 05:34:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_wakeup [2024-11-09 05:34:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_wakeup [2024-11-09 05:34:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_wait_status [2024-11-09 05:34:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_wait_status [2024-11-09 05:34:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_set_rx_mode [2024-11-09 05:34:06,485 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_set_rx_mode [2024-11-09 05:34:06,485 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 05:34:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 05:34:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 05:34:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 05:34:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure ioread32 [2024-11-09 05:34:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ioread32 [2024-11-09 05:34:06,486 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-09 05:34:06,486 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-09 05:34:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_err [2024-11-09 05:34:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_err [2024-11-09 05:34:06,487 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-09 05:34:06,487 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-09 05:34:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-09 05:34:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-09 05:34:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-09 05:34:06,488 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-09 05:34:06,488 INFO L130 BoogieDeclarations]: Found specification of procedure iowrite32 [2024-11-09 05:34:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure iowrite32 [2024-11-09 05:34:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2024-11-09 05:34:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2024-11-09 05:34:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 05:34:06,489 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 05:34:06,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-09 05:34:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-09 05:34:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-09 05:34:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-09 05:34:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:34:06,490 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_clean_tx [2024-11-09 05:34:06,490 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_clean_tx [2024-11-09 05:34:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_stop_runtime [2024-11-09 05:34:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_stop_runtime [2024-11-09 05:34:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 05:34:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 05:34:06,491 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 05:34:06,491 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 05:34:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_resume [2024-11-09 05:34:06,492 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_resume [2024-11-09 05:34:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_inc_rxfree_index [2024-11-09 05:34:06,492 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_inc_rxfree_index [2024-11-09 05:34:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 05:34:06,492 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_remove_one [2024-11-09 05:34:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_remove_one [2024-11-09 05:34:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 05:34:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 05:34:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:34:06,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-09 05:34:06,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-09 05:34:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:34:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 05:34:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 05:34:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-09 05:34:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-09 05:34:06,494 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-09 05:34:06,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-09 05:34:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-09 05:34:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-09 05:34:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 05:34:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 05:34:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iomap [2024-11-09 05:34:06,495 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iomap [2024-11-09 05:34:06,495 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-09 05:34:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-09 05:34:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-09 05:34:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-09 05:34:06,496 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_close [2024-11-09 05:34:06,496 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_close [2024-11-09 05:34:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_tx_timeout [2024-11-09 05:34:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_tx_timeout [2024-11-09 05:34:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_alloc_rx_skb [2024-11-09 05:34:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_alloc_rx_skb [2024-11-09 05:34:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_issue_command [2024-11-09 05:34:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_issue_command [2024-11-09 05:34:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:34:06,497 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-09 05:34:06,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-09 05:34:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2024-11-09 05:34:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2024-11-09 05:34:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:34:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_process_response [2024-11-09 05:34:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_process_response [2024-11-09 05:34:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-09 05:34:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-09 05:34:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 05:34:06,498 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 05:34:06,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:34:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:34:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-09 05:34:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-11-09 05:34:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-11-09 05:34:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-11-09 05:34:06,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-11-09 05:34:06,499 INFO L130 BoogieDeclarations]: Found specification of procedure skb_is_gso [2024-11-09 05:34:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_is_gso [2024-11-09 05:34:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_num_free_tx [2024-11-09 05:34:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_num_free_tx [2024-11-09 05:34:06,500 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2024-11-09 05:34:06,500 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2024-11-09 05:34:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_reset [2024-11-09 05:34:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_reset [2024-11-09 05:34:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-09 05:34:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-09 05:34:06,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-09 05:34:06,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-09 05:34:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_inc_cmd_index [2024-11-09 05:34:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_inc_cmd_index [2024-11-09 05:34:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2024-11-09 05:34:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2024-11-09 05:34:06,502 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_fill_free_ring [2024-11-09 05:34:06,502 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_fill_free_ring [2024-11-09 05:34:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:34:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:34:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab32 [2024-11-09 05:34:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab32 [2024-11-09 05:34:06,503 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2024-11-09 05:34:06,503 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2024-11-09 05:34:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 05:34:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:34:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:34:06,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:34:06,504 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 05:34:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 05:34:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-09 05:34:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-09 05:34:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 05:34:06,505 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 05:34:06,505 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 05:34:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 05:34:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2024-11-09 05:34:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2024-11-09 05:34:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_wait_interrupt [2024-11-09 05:34:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_wait_interrupt [2024-11-09 05:34:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:34:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 05:34:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 05:34:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:34:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure pci_clear_mwi [2024-11-09 05:34:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_clear_mwi [2024-11-09 05:34:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:34:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 05:34:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 05:34:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 05:34:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 05:34:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_boot_3XP [2024-11-09 05:34:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_boot_3XP [2024-11-09 05:34:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-09 05:34:06,508 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-09 05:34:06,508 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 05:34:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 05:34:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-09 05:34:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-09 05:34:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure release_firmware [2024-11-09 05:34:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure release_firmware [2024-11-09 05:34:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2024-11-09 05:34:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2024-11-09 05:34:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure pci_restore_state [2024-11-09 05:34:06,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_restore_state [2024-11-09 05:34:06,509 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2024-11-09 05:34:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2024-11-09 05:34:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 05:34:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 05:34:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_free_rx_rings [2024-11-09 05:34:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_free_rx_rings [2024-11-09 05:34:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 05:34:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 05:34:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_do_get_stats [2024-11-09 05:34:06,510 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_do_get_stats [2024-11-09 05:34:06,510 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_num_free [2024-11-09 05:34:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_num_free [2024-11-09 05:34:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_sleep [2024-11-09 05:34:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_sleep [2024-11-09 05:34:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:34:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:34:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:34:06,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_84 [2024-11-09 05:34:06,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_84 [2024-11-09 05:34:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_init_rings [2024-11-09 05:34:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_init_rings [2024-11-09 05:34:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2024-11-09 05:34:06,512 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2024-11-09 05:34:06,512 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_open [2024-11-09 05:34:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_open [2024-11-09 05:34:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-09 05:34:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-09 05:34:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_start_runtime [2024-11-09 05:34:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_start_runtime [2024-11-09 05:34:06,513 INFO L130 BoogieDeclarations]: Found specification of procedure pci_iounmap [2024-11-09 05:34:06,513 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_iounmap [2024-11-09 05:34:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2024-11-09 05:34:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2024-11-09 05:34:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:34:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure typhoon_inc_index [2024-11-09 05:34:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure typhoon_inc_index [2024-11-09 05:34:06,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-09 05:34:06,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-09 05:34:07,428 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:34:07,435 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:34:07,543 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:34:24,397 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-09 05:34:26,149 INFO L? ?]: Removed 2608 outVars from TransFormulas that were not future-live. [2024-11-09 05:34:26,149 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:34:29,160 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:34:29,161 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:34:29,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:34:29 BoogieIcfgContainer [2024-11-09 05:34:29,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:34:29,164 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:34:29,164 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:34:29,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:34:29,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:34:01" (1/3) ... [2024-11-09 05:34:29,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:34:29, skipping insertion in model container [2024-11-09 05:34:29,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:05" (2/3) ... [2024-11-09 05:34:29,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fb7b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:34:29, skipping insertion in model container [2024-11-09 05:34:29,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:34:29" (3/3) ... [2024-11-09 05:34:29,174 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-3com-typhoon.cil.i [2024-11-09 05:34:29,199 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:34:29,199 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:34:29,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:34:29,351 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=FINITE_AUTOMATA, 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;@3f0595b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:34:29,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:34:29,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 1456 states, 841 states have (on average 1.2829964328180736) internal successors, (1079), 861 states have internal predecessors, (1079), 517 states have call successors, (517), 98 states have call predecessors, (517), 97 states have return successors, (512), 506 states have call predecessors, (512), 512 states have call successors, (512) [2024-11-09 05:34:29,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-09 05:34:29,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:29,424 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:29,427 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:34:29,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:29,434 INFO L85 PathProgramCache]: Analyzing trace with hash -57795162, now seen corresponding path program 1 times [2024-11-09 05:34:29,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:29,446 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351244565] [2024-11-09 05:34:29,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:29,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:41,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:42,542 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-09 05:34:42,542 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:42,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351244565] [2024-11-09 05:34:42,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351244565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:34:42,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:34:42,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:34:42,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614941646] [2024-11-09 05:34:42,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:34:42,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:34:42,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:42,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:34:42,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:34:42,610 INFO L87 Difference]: Start difference. First operand has 1456 states, 841 states have (on average 1.2829964328180736) internal successors, (1079), 861 states have internal predecessors, (1079), 517 states have call successors, (517), 98 states have call predecessors, (517), 97 states have return successors, (512), 506 states have call predecessors, (512), 512 states have call successors, (512) Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-09 05:34:44,760 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:46,962 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:52,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:55,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:57,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:00,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:02,590 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:03,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:03,330 INFO L93 Difference]: Finished difference Result 3769 states and 5467 transitions. [2024-11-09 05:35:03,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:35:03,335 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 164 [2024-11-09 05:35:03,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:03,393 INFO L225 Difference]: With dead ends: 3769 [2024-11-09 05:35:03,395 INFO L226 Difference]: Without dead ends: 2249 [2024-11-09 05:35:03,417 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:35:03,424 INFO L432 NwaCegarLoop]: 1883 mSDtfsCounter, 1238 mSDsluCounter, 1809 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 17 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1238 SdHoareTripleChecker+Valid, 3692 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:03,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1238 Valid, 3692 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 565 Invalid, 7 Unknown, 0 Unchecked, 20.4s Time] [2024-11-09 05:35:03,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2249 states. [2024-11-09 05:35:03,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2249 to 2246. [2024-11-09 05:35:03,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2246 states, 1320 states have (on average 1.2818181818181817) internal successors, (1692), 1349 states have internal predecessors, (1692), 763 states have call successors, (763), 162 states have call predecessors, (763), 162 states have return successors, (763), 754 states have call predecessors, (763), 763 states have call successors, (763) [2024-11-09 05:35:03,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 3218 transitions. [2024-11-09 05:35:03,734 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 3218 transitions. Word has length 164 [2024-11-09 05:35:03,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:03,735 INFO L471 AbstractCegarLoop]: Abstraction has 2246 states and 3218 transitions. [2024-11-09 05:35:03,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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) [2024-11-09 05:35:03,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 3218 transitions. [2024-11-09 05:35:03,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-09 05:35:03,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:03,752 INFO L215 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:03,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:35:03,752 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:03,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:03,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1761661758, now seen corresponding path program 1 times [2024-11-09 05:35:03,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:03,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637659122] [2024-11-09 05:35:03,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:03,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:14,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 270 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2024-11-09 05:35:15,026 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:15,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637659122] [2024-11-09 05:35:15,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637659122] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:15,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:35:15,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:35:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715115758] [2024-11-09 05:35:15,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:15,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:35:15,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:15,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:35:15,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:35:15,033 INFO L87 Difference]: Start difference. First operand 2246 states and 3218 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, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-09 05:35:17,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:19,348 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:23,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:26,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:31,836 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:33,845 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:36,581 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:38,591 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:38,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:38,938 INFO L93 Difference]: Finished difference Result 5792 states and 8276 transitions. [2024-11-09 05:35:38,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:35:38,940 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, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) Word has length 184 [2024-11-09 05:35:38,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:38,979 INFO L225 Difference]: With dead ends: 5792 [2024-11-09 05:35:38,979 INFO L226 Difference]: Without dead ends: 3563 [2024-11-09 05:35:38,998 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:35:38,999 INFO L432 NwaCegarLoop]: 1791 mSDtfsCounter, 1746 mSDsluCounter, 1725 mSDsCounter, 0 mSdLazyCounter, 536 mSolverCounterSat, 7 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1746 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 536 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:39,001 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1746 Valid, 3516 Invalid, 551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 536 Invalid, 8 Unknown, 0 Unchecked, 23.6s Time] [2024-11-09 05:35:39,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3563 states. [2024-11-09 05:35:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3563 to 3559. [2024-11-09 05:35:39,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3559 states, 2087 states have (on average 1.2702443699089603) internal successors, (2651), 2136 states have internal predecessors, (2651), 1209 states have call successors, (1209), 263 states have call predecessors, (1209), 262 states have return successors, (1210), 1190 states have call predecessors, (1210), 1209 states have call successors, (1210) [2024-11-09 05:35:39,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3559 states to 3559 states and 5070 transitions. [2024-11-09 05:35:39,278 INFO L78 Accepts]: Start accepts. Automaton has 3559 states and 5070 transitions. Word has length 184 [2024-11-09 05:35:39,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:39,280 INFO L471 AbstractCegarLoop]: Abstraction has 3559 states and 5070 transitions. [2024-11-09 05:35:39,280 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, (32), 2 states have call predecessors, (32), 1 states have return successors, (26), 3 states have call predecessors, (26), 3 states have call successors, (26) [2024-11-09 05:35:39,281 INFO L276 IsEmpty]: Start isEmpty. Operand 3559 states and 5070 transitions. [2024-11-09 05:35:39,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-09 05:35:39,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:39,292 INFO L215 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 4, 4, 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] [2024-11-09 05:35:39,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:35:39,292 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:39,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:39,293 INFO L85 PathProgramCache]: Analyzing trace with hash 41816039, now seen corresponding path program 1 times [2024-11-09 05:35:39,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:39,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223220320] [2024-11-09 05:35:39,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:39,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:49,959 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-09 05:35:49,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:49,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223220320] [2024-11-09 05:35:49,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223220320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:49,961 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:35:49,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:35:49,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606856562] [2024-11-09 05:35:49,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:49,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:35:49,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:49,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:35:49,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:35:49,965 INFO L87 Difference]: Start difference. First operand 3559 states and 5070 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:35:52,061 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:54,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:00,150 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:02,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:04,481 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:06,491 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:11,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:12,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:12,547 INFO L93 Difference]: Finished difference Result 8061 states and 11475 transitions. [2024-11-09 05:36:12,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:36:12,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 207 [2024-11-09 05:36:12,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:12,592 INFO L225 Difference]: With dead ends: 8061 [2024-11-09 05:36:12,593 INFO L226 Difference]: Without dead ends: 4519 [2024-11-09 05:36:12,616 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:36:12,617 INFO L432 NwaCegarLoop]: 2781 mSDtfsCounter, 1183 mSDsluCounter, 1742 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 15 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1183 SdHoareTripleChecker+Valid, 4523 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:12,617 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1183 Valid, 4523 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 712 Invalid, 7 Unknown, 0 Unchecked, 22.4s Time] [2024-11-09 05:36:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4519 states. [2024-11-09 05:36:12,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4519 to 4515. [2024-11-09 05:36:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4515 states, 2667 states have (on average 1.2688413948256467) internal successors, (3384), 2727 states have internal predecessors, (3384), 1506 states have call successors, (1506), 342 states have call predecessors, (1506), 341 states have return successors, (1507), 1483 states have call predecessors, (1507), 1506 states have call successors, (1507) [2024-11-09 05:36:12,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4515 states to 4515 states and 6397 transitions. [2024-11-09 05:36:12,894 INFO L78 Accepts]: Start accepts. Automaton has 4515 states and 6397 transitions. Word has length 207 [2024-11-09 05:36:12,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:12,897 INFO L471 AbstractCegarLoop]: Abstraction has 4515 states and 6397 transitions. [2024-11-09 05:36:12,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (36), 2 states have call predecessors, (36), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2024-11-09 05:36:12,898 INFO L276 IsEmpty]: Start isEmpty. Operand 4515 states and 6397 transitions. [2024-11-09 05:36:12,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-11-09 05:36:12,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:12,908 INFO L215 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2024-11-09 05:36:12,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:36:12,909 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:36:12,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash -1148199862, now seen corresponding path program 1 times [2024-11-09 05:36:12,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:12,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107818732] [2024-11-09 05:36:12,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:12,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:22,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:23,130 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 461 trivial. 0 not checked. [2024-11-09 05:36:23,131 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:23,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107818732] [2024-11-09 05:36:23,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107818732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:36:23,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:36:23,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:36:23,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734283971] [2024-11-09 05:36:23,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:36:23,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:36:23,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:36:23,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:36:23,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:36:23,135 INFO L87 Difference]: Start difference. First operand 4515 states and 6397 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 05:36:25,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:27,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:32,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:34,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:37,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:40,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:40,191 INFO L93 Difference]: Finished difference Result 9045 states and 12919 transitions. [2024-11-09 05:36:40,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:36:40,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 272 [2024-11-09 05:36:40,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:40,230 INFO L225 Difference]: With dead ends: 9045 [2024-11-09 05:36:40,230 INFO L226 Difference]: Without dead ends: 4547 [2024-11-09 05:36:40,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:36:40,257 INFO L432 NwaCegarLoop]: 1782 mSDtfsCounter, 5 mSDsluCounter, 1780 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 0 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 3562 SdHoareTripleChecker+Invalid, 509 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:40,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 3562 Invalid, 509 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 504 Invalid, 5 Unknown, 0 Unchecked, 16.9s Time] [2024-11-09 05:36:40,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4547 states. [2024-11-09 05:36:40,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4547 to 4519. [2024-11-09 05:36:40,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4519 states, 2671 states have (on average 1.2684387869711717) internal successors, (3388), 2731 states have internal predecessors, (3388), 1506 states have call successors, (1506), 342 states have call predecessors, (1506), 341 states have return successors, (1507), 1483 states have call predecessors, (1507), 1506 states have call successors, (1507) [2024-11-09 05:36:40,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4519 states to 4519 states and 6401 transitions. [2024-11-09 05:36:40,519 INFO L78 Accepts]: Start accepts. Automaton has 4519 states and 6401 transitions. Word has length 272 [2024-11-09 05:36:40,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:40,521 INFO L471 AbstractCegarLoop]: Abstraction has 4519 states and 6401 transitions. [2024-11-09 05:36:40,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (41), 2 states have call predecessors, (41), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-09 05:36:40,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4519 states and 6401 transitions. [2024-11-09 05:36:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-09 05:36:40,530 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:40,530 INFO L215 NwaCegarLoop]: trace histogram [14, 8, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 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] [2024-11-09 05:36:40,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:36:40,531 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:36:40,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:40,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1152545692, now seen corresponding path program 1 times [2024-11-09 05:36:40,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:40,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921100086] [2024-11-09 05:36:40,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:40,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:50,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:51,822 INFO L134 CoverageAnalysis]: Checked inductivity of 461 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2024-11-09 05:36:51,822 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:51,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921100086] [2024-11-09 05:36:51,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921100086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:36:51,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:36:51,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:36:51,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779215880] [2024-11-09 05:36:51,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:36:51,824 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:36:51,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:36:51,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:36:51,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:36:51,827 INFO L87 Difference]: Start difference. First operand 4519 states and 6401 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2024-11-09 05:36:53,908 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:56,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:01,620 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:04,582 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:06,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:11,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:12,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:12,116 INFO L93 Difference]: Finished difference Result 10744 states and 15200 transitions. [2024-11-09 05:37:12,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:37:12,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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 277 [2024-11-09 05:37:12,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:12,167 INFO L225 Difference]: With dead ends: 10744 [2024-11-09 05:37:12,167 INFO L226 Difference]: Without dead ends: 6242 [2024-11-09 05:37:12,195 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:37:12,196 INFO L432 NwaCegarLoop]: 2927 mSDtfsCounter, 1621 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 691 mSolverCounterSat, 16 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 4460 SdHoareTripleChecker+Invalid, 712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 691 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.0s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:12,196 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 4460 Invalid, 712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 691 Invalid, 5 Unknown, 0 Unchecked, 20.0s Time] [2024-11-09 05:37:12,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6242 states. [2024-11-09 05:37:12,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6242 to 6238. [2024-11-09 05:37:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6238 states, 3688 states have (on average 1.2662689804772234) internal successors, (4670), 3765 states have internal predecessors, (4670), 2062 states have call successors, (2062), 488 states have call predecessors, (2062), 487 states have return successors, (2063), 2032 states have call predecessors, (2063), 2062 states have call successors, (2063) [2024-11-09 05:37:12,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6238 states to 6238 states and 8795 transitions. [2024-11-09 05:37:12,580 INFO L78 Accepts]: Start accepts. Automaton has 6238 states and 8795 transitions. Word has length 277 [2024-11-09 05:37:12,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:12,581 INFO L471 AbstractCegarLoop]: Abstraction has 6238 states and 8795 transitions. [2024-11-09 05:37:12,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 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) [2024-11-09 05:37:12,582 INFO L276 IsEmpty]: Start isEmpty. Operand 6238 states and 8795 transitions. [2024-11-09 05:37:12,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2024-11-09 05:37:12,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:12,599 INFO L215 NwaCegarLoop]: trace histogram [18, 10, 10, 9, 9, 9, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:12,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:37:12,599 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:12,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:12,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1039122842, now seen corresponding path program 1 times [2024-11-09 05:37:12,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:12,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793341475] [2024-11-09 05:37:12,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:12,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2024-11-09 05:37:32,785 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793341475] [2024-11-09 05:37:32,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793341475] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:32,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:37:32,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:37:32,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879019324] [2024-11-09 05:37:32,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:32,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:37:32,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:32,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:37:32,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:37:32,789 INFO L87 Difference]: Start difference. First operand 6238 states and 8795 transitions. Second operand has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-09 05:37:34,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:37,052 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:39,255 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:41,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:56,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:58,358 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:00,370 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:02,389 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:06,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:08,337 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:10,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:12,361 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:14,367 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:18,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:20,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:22,399 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:24,412 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:38:29,906 INFO L93 Difference]: Finished difference Result 7642 states and 10723 transitions. [2024-11-09 05:38:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 05:38:29,907 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) Word has length 341 [2024-11-09 05:38:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:38:29,974 INFO L225 Difference]: With dead ends: 7642 [2024-11-09 05:38:29,974 INFO L226 Difference]: Without dead ends: 7640 [2024-11-09 05:38:29,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-09 05:38:29,982 INFO L432 NwaCegarLoop]: 1787 mSDtfsCounter, 1145 mSDsluCounter, 6407 mSDsCounter, 0 mSdLazyCounter, 1964 mSolverCounterSat, 2 mSolverCounterUnsat, 15 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 54.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1159 SdHoareTripleChecker+Valid, 8194 SdHoareTripleChecker+Invalid, 1981 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1964 IncrementalHoareTripleChecker+Invalid, 15 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:38:29,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1159 Valid, 8194 Invalid, 1981 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 1964 Invalid, 15 Unknown, 0 Unchecked, 55.8s Time] [2024-11-09 05:38:29,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2024-11-09 05:38:30,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 7572. [2024-11-09 05:38:30,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7572 states, 4483 states have (on average 1.2589783627035467) internal successors, (5644), 4586 states have internal predecessors, (5644), 2476 states have call successors, (2476), 620 states have call predecessors, (2476), 612 states have return successors, (2485), 2423 states have call predecessors, (2485), 2476 states have call successors, (2485) [2024-11-09 05:38:30,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7572 states to 7572 states and 10605 transitions. [2024-11-09 05:38:30,581 INFO L78 Accepts]: Start accepts. Automaton has 7572 states and 10605 transitions. Word has length 341 [2024-11-09 05:38:30,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:38:30,582 INFO L471 AbstractCegarLoop]: Abstraction has 7572 states and 10605 transitions. [2024-11-09 05:38:30,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 23.4) internal successors, (117), 5 states have internal predecessors, (117), 2 states have call successors, (49), 2 states have call predecessors, (49), 2 states have return successors, (43), 3 states have call predecessors, (43), 2 states have call successors, (43) [2024-11-09 05:38:30,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7572 states and 10605 transitions. [2024-11-09 05:38:30,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 418 [2024-11-09 05:38:30,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:38:30,610 INFO L215 NwaCegarLoop]: trace histogram [19, 12, 12, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:38:30,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 05:38:30,610 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:38:30,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:38:30,611 INFO L85 PathProgramCache]: Analyzing trace with hash 165381460, now seen corresponding path program 1 times [2024-11-09 05:38:30,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:38:30,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388986087] [2024-11-09 05:38:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:38:30,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:38:39,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:38:40,598 INFO L134 CoverageAnalysis]: Checked inductivity of 862 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 826 trivial. 0 not checked. [2024-11-09 05:38:40,598 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:38:40,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388986087] [2024-11-09 05:38:40,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388986087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:38:40,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:38:40,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:38:40,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8095541] [2024-11-09 05:38:40,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:38:40,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:38:40,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:38:40,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:38:40,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:38:40,602 INFO L87 Difference]: Start difference. First operand 7572 states and 10605 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2024-11-09 05:38:42,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:44,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:50,822 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:52,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:55,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:38:57,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:02,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:02,687 INFO L93 Difference]: Finished difference Result 16751 states and 23425 transitions. [2024-11-09 05:39:02,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:39:02,689 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) Word has length 417 [2024-11-09 05:39:02,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:02,771 INFO L225 Difference]: With dead ends: 16751 [2024-11-09 05:39:02,772 INFO L226 Difference]: Without dead ends: 9214 [2024-11-09 05:39:02,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:39:02,813 INFO L432 NwaCegarLoop]: 2770 mSDtfsCounter, 1384 mSDsluCounter, 1745 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 2 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1384 SdHoareTripleChecker+Valid, 4515 SdHoareTripleChecker+Invalid, 710 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:02,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1384 Valid, 4515 Invalid, 710 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 702 Invalid, 6 Unknown, 0 Unchecked, 21.6s Time] [2024-11-09 05:39:02,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9214 states. [2024-11-09 05:39:03,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9214 to 9209. [2024-11-09 05:39:03,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9209 states, 5436 states have (on average 1.2566225165562914) internal successors, (6831), 5561 states have internal predecessors, (6831), 3007 states have call successors, (3007), 778 states have call predecessors, (3007), 765 states have return successors, (3016), 2940 states have call predecessors, (3016), 3007 states have call successors, (3016) [2024-11-09 05:39:03,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9209 states to 9209 states and 12854 transitions. [2024-11-09 05:39:03,608 INFO L78 Accepts]: Start accepts. Automaton has 9209 states and 12854 transitions. Word has length 417 [2024-11-09 05:39:03,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:03,612 INFO L471 AbstractCegarLoop]: Abstraction has 9209 states and 12854 transitions. [2024-11-09 05:39:03,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (57), 3 states have call predecessors, (57), 3 states have call successors, (57) [2024-11-09 05:39:03,613 INFO L276 IsEmpty]: Start isEmpty. Operand 9209 states and 12854 transitions. [2024-11-09 05:39:03,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 497 [2024-11-09 05:39:03,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:03,642 INFO L215 NwaCegarLoop]: trace histogram [19, 12, 12, 9, 9, 9, 9, 9, 9, 7, 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, 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] [2024-11-09 05:39:03,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 05:39:03,643 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:03,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:03,643 INFO L85 PathProgramCache]: Analyzing trace with hash 147694876, now seen corresponding path program 1 times [2024-11-09 05:39:03,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:03,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425497432] [2024-11-09 05:39:03,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:03,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:39:13,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:39:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 927 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2024-11-09 05:39:14,529 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:39:14,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425497432] [2024-11-09 05:39:14,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425497432] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:39:14,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:39:14,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 05:39:14,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332790321] [2024-11-09 05:39:14,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:39:14,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 05:39:14,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:39:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 05:39:14,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:39:14,539 INFO L87 Difference]: Start difference. First operand 9209 states and 12854 transitions. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (78), 2 states have call predecessors, (78), 3 states have return successors, (71), 3 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 05:39:16,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:18,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:20,997 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:23,194 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:30,991 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:33,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:35,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:37,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:40,621 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:42,445 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:44,472 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:45,758 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:39:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:39:50,867 INFO L93 Difference]: Finished difference Result 18403 states and 25698 transitions. [2024-11-09 05:39:50,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 05:39:50,869 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (78), 2 states have call predecessors, (78), 3 states have return successors, (71), 3 states have call predecessors, (71), 2 states have call successors, (71) Word has length 496 [2024-11-09 05:39:50,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:39:50,943 INFO L225 Difference]: With dead ends: 18403 [2024-11-09 05:39:50,943 INFO L226 Difference]: Without dead ends: 9229 [2024-11-09 05:39:50,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:39:50,986 INFO L432 NwaCegarLoop]: 1783 mSDtfsCounter, 0 mSDsluCounter, 5336 mSDsCounter, 0 mSdLazyCounter, 1014 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 7119 SdHoareTripleChecker+Invalid, 1024 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1014 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 35.8s IncrementalHoareTripleChecker+Time [2024-11-09 05:39:50,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 7119 Invalid, 1024 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1014 Invalid, 10 Unknown, 0 Unchecked, 35.8s Time] [2024-11-09 05:39:51,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9229 states. [2024-11-09 05:39:51,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9229 to 9229. [2024-11-09 05:39:51,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9229 states, 5451 states have (on average 1.255916345624656) internal successors, (6846), 5576 states have internal predecessors, (6846), 3007 states have call successors, (3007), 778 states have call predecessors, (3007), 770 states have return successors, (3024), 2945 states have call predecessors, (3024), 3007 states have call successors, (3024) [2024-11-09 05:39:51,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9229 states to 9229 states and 12877 transitions. [2024-11-09 05:39:51,659 INFO L78 Accepts]: Start accepts. Automaton has 9229 states and 12877 transitions. Word has length 496 [2024-11-09 05:39:51,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:39:51,660 INFO L471 AbstractCegarLoop]: Abstraction has 9229 states and 12877 transitions. [2024-11-09 05:39:51,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 4 states have internal predecessors, (187), 2 states have call successors, (78), 2 states have call predecessors, (78), 3 states have return successors, (71), 3 states have call predecessors, (71), 2 states have call successors, (71) [2024-11-09 05:39:51,661 INFO L276 IsEmpty]: Start isEmpty. Operand 9229 states and 12877 transitions. [2024-11-09 05:39:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-09 05:39:51,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:39:51,683 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 9, 9, 9, 9, 9, 9, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:39:51,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 05:39:51,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:39:51,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:39:51,684 INFO L85 PathProgramCache]: Analyzing trace with hash -786939134, now seen corresponding path program 1 times [2024-11-09 05:39:51,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:39:51,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311083290] [2024-11-09 05:39:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:39:51,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:40:05,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:40:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 995 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 957 trivial. 0 not checked. [2024-11-09 05:40:06,633 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:40:06,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311083290] [2024-11-09 05:40:06,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311083290] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:40:06,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:40:06,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 05:40:06,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [160429478] [2024-11-09 05:40:06,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:40:06,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 05:40:06,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:40:06,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 05:40:06,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:40:06,637 INFO L87 Difference]: Start difference. First operand 9229 states and 12877 transitions. Second operand has 6 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 3 states have call successors, (73) [2024-11-09 05:40:08,699 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:10,956 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:13,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:15,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:17,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:26,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:28,599 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:30,608 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:32,612 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:34,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:38,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:40,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:42,753 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:44,235 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:40:49,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:40:49,396 INFO L93 Difference]: Finished difference Result 18463 states and 25886 transitions. [2024-11-09 05:40:49,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 05:40:49,397 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 3 states have call successors, (73) Word has length 504 [2024-11-09 05:40:49,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:40:49,453 INFO L225 Difference]: With dead ends: 18463 [2024-11-09 05:40:49,453 INFO L226 Difference]: Without dead ends: 9269 [2024-11-09 05:40:49,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 05:40:49,491 INFO L432 NwaCegarLoop]: 1782 mSDtfsCounter, 2 mSDsluCounter, 7117 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 0 mSolverCounterUnsat, 13 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 8899 SdHoareTripleChecker+Invalid, 1273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 13 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2024-11-09 05:40:49,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 8899 Invalid, 1273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1260 Invalid, 13 Unknown, 0 Unchecked, 42.3s Time] [2024-11-09 05:40:49,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9269 states. [2024-11-09 05:40:49,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9269 to 9269. [2024-11-09 05:40:49,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9269 states, 5481 states have (on average 1.2545155993431856) internal successors, (6876), 5606 states have internal predecessors, (6876), 3007 states have call successors, (3007), 778 states have call predecessors, (3007), 780 states have return successors, (3075), 2955 states have call predecessors, (3075), 3007 states have call successors, (3075) [2024-11-09 05:40:50,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9269 states to 9269 states and 12958 transitions. [2024-11-09 05:40:50,058 INFO L78 Accepts]: Start accepts. Automaton has 9269 states and 12958 transitions. Word has length 504 [2024-11-09 05:40:50,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:40:50,059 INFO L471 AbstractCegarLoop]: Abstraction has 9269 states and 12958 transitions. [2024-11-09 05:40:50,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 39.2) internal successors, (196), 5 states have internal predecessors, (196), 3 states have call successors, (80), 2 states have call predecessors, (80), 3 states have return successors, (73), 4 states have call predecessors, (73), 3 states have call successors, (73) [2024-11-09 05:40:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 9269 states and 12958 transitions. [2024-11-09 05:40:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2024-11-09 05:40:50,080 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:40:50,080 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 9, 9, 9, 9, 9, 9, 7, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:40:50,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 05:40:50,080 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:40:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:40:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -430632787, now seen corresponding path program 1 times [2024-11-09 05:40:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:40:50,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514671790] [2024-11-09 05:40:50,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:40:50,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:01,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 39 proven. 1 refuted. 0 times theorem prover too weak. 959 trivial. 0 not checked. [2024-11-09 05:41:02,519 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:02,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514671790] [2024-11-09 05:41:02,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514671790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:02,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884111305] [2024-11-09 05:41:02,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:02,520 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:02,523 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:02,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 05:41:18,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:18,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 5686 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:41:18,190 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:41:18,502 INFO L134 CoverageAnalysis]: Checked inductivity of 999 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 910 trivial. 0 not checked. [2024-11-09 05:41:18,503 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:41:18,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884111305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:41:18,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:41:18,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 05:41:18,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2282517] [2024-11-09 05:41:18,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:41:18,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:41:18,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:41:18,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:41:18,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:18,508 INFO L87 Difference]: Start difference. First operand 9269 states and 12958 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2024-11-09 05:41:20,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:22,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.23s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:28,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:31,211 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:33,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:35,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:41:38,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:41:38,573 INFO L93 Difference]: Finished difference Result 20733 states and 29003 transitions. [2024-11-09 05:41:38,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:41:38,575 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) Word has length 509 [2024-11-09 05:41:38,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:41:38,679 INFO L225 Difference]: With dead ends: 20733 [2024-11-09 05:41:38,679 INFO L226 Difference]: Without dead ends: 11499 [2024-11-09 05:41:38,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:41:38,728 INFO L432 NwaCegarLoop]: 2137 mSDtfsCounter, 1911 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 544 mSolverCounterSat, 25 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1911 SdHoareTripleChecker+Valid, 3391 SdHoareTripleChecker+Invalid, 575 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 544 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:41:38,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1911 Valid, 3391 Invalid, 575 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 544 Invalid, 6 Unknown, 0 Unchecked, 19.4s Time] [2024-11-09 05:41:38,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11499 states. [2024-11-09 05:41:39,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11499 to 11494. [2024-11-09 05:41:39,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11494 states, 6788 states have (on average 1.2564820271066588) internal successors, (8529), 6938 states have internal predecessors, (8529), 3730 states have call successors, (3730), 973 states have call predecessors, (3730), 975 states have return successors, (3814), 3667 states have call predecessors, (3814), 3730 states have call successors, (3814) [2024-11-09 05:41:39,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11494 states to 11494 states and 16073 transitions. [2024-11-09 05:41:39,913 INFO L78 Accepts]: Start accepts. Automaton has 11494 states and 16073 transitions. Word has length 509 [2024-11-09 05:41:39,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:41:39,914 INFO L471 AbstractCegarLoop]: Abstraction has 11494 states and 16073 transitions. [2024-11-09 05:41:39,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 3 states have internal predecessors, (200), 3 states have call successors, (80), 3 states have call predecessors, (80), 3 states have return successors, (73), 3 states have call predecessors, (73), 3 states have call successors, (73) [2024-11-09 05:41:39,914 INFO L276 IsEmpty]: Start isEmpty. Operand 11494 states and 16073 transitions. [2024-11-09 05:41:39,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-09 05:41:39,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:41:39,944 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:41:39,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 05:41:40,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:40,145 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:41:40,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:41:40,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1945516112, now seen corresponding path program 1 times [2024-11-09 05:41:40,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:41:40,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345324002] [2024-11-09 05:41:40,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:40,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:41:51,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:41:52,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 50 proven. 8 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2024-11-09 05:41:52,176 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:41:52,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345324002] [2024-11-09 05:41:52,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345324002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:41:52,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810663210] [2024-11-09 05:41:52,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:41:52,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:41:52,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:41:52,180 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:41:52,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 05:42:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:42:07,840 INFO L255 TraceCheckSpWp]: Trace formula consists of 5597 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 05:42:07,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:42:08,238 INFO L134 CoverageAnalysis]: Checked inductivity of 1001 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 880 trivial. 0 not checked. [2024-11-09 05:42:08,239 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 05:42:08,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810663210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:42:08,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 05:42:08,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 05:42:08,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128138710] [2024-11-09 05:42:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:42:08,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:42:08,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:42:08,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:42:08,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:42:08,243 INFO L87 Difference]: Start difference. First operand 11494 states and 16073 transitions. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (76), 3 states have call predecessors, (76), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-11-09 05:42:10,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:16,503 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:18,510 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:21,168 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:23,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:25,383 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:42:28,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:42:28,585 INFO L93 Difference]: Finished difference Result 26017 states and 36410 transitions. [2024-11-09 05:42:28,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:42:28,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (76), 3 states have call predecessors, (76), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) Word has length 503 [2024-11-09 05:42:28,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:42:28,673 INFO L225 Difference]: With dead ends: 26017 [2024-11-09 05:42:28,673 INFO L226 Difference]: Without dead ends: 14558 [2024-11-09 05:42:28,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 05:42:28,720 INFO L432 NwaCegarLoop]: 2200 mSDtfsCounter, 1506 mSDsluCounter, 1660 mSDsCounter, 0 mSdLazyCounter, 637 mSolverCounterSat, 18 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 3860 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 637 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:42:28,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 3860 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 637 Invalid, 6 Unknown, 0 Unchecked, 19.5s Time] [2024-11-09 05:42:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14558 states. [2024-11-09 05:42:29,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14558 to 14547. [2024-11-09 05:42:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14547 states, 8624 states have (on average 1.2561456400742115) internal successors, (10833), 8805 states have internal predecessors, (10833), 4687 states have call successors, (4687), 1230 states have call predecessors, (4687), 1235 states have return successors, (4791), 4614 states have call predecessors, (4791), 4687 states have call successors, (4791) [2024-11-09 05:42:29,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14547 states to 14547 states and 20311 transitions. [2024-11-09 05:42:29,656 INFO L78 Accepts]: Start accepts. Automaton has 14547 states and 20311 transitions. Word has length 503 [2024-11-09 05:42:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:42:29,657 INFO L471 AbstractCegarLoop]: Abstraction has 14547 states and 20311 transitions. [2024-11-09 05:42:29,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 3 states have call successors, (76), 3 states have call predecessors, (76), 3 states have return successors, (70), 3 states have call predecessors, (70), 3 states have call successors, (70) [2024-11-09 05:42:29,658 INFO L276 IsEmpty]: Start isEmpty. Operand 14547 states and 20311 transitions. [2024-11-09 05:42:29,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2024-11-09 05:42:29,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:42:29,681 INFO L215 NwaCegarLoop]: trace histogram [20, 13, 13, 9, 9, 9, 9, 9, 9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-09 05:42:29,710 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 05:42:29,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:42:29,882 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:42:29,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:42:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1836847822, now seen corresponding path program 1 times [2024-11-09 05:42:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:42:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107334500] [2024-11-09 05:42:29,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:29,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:42:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:42:42,741 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 45 proven. 8 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2024-11-09 05:42:42,742 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:42:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107334500] [2024-11-09 05:42:42,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107334500] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 05:42:42,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538588192] [2024-11-09 05:42:42,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:42:42,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 05:42:42,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:42:42,752 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 05:42:42,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f265a2c6-db27-45bd-b3d0-3f0018322841/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 05:42:57,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:42:57,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 5559 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 05:42:57,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 05:42:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 184 proven. 1 refuted. 0 times theorem prover too weak. 811 trivial. 0 not checked. [2024-11-09 05:42:57,740 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 05:43:03,838 INFO L134 CoverageAnalysis]: Checked inductivity of 996 backedges. 45 proven. 8 refuted. 0 times theorem prover too weak. 943 trivial. 0 not checked. [2024-11-09 05:43:03,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538588192] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 05:43:03,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [173825501] [2024-11-09 05:43:03,877 INFO L159 IcfgInterpreter]: Started Sifa with 270 locations of interest [2024-11-09 05:43:03,877 INFO L166 IcfgInterpreter]: Building call graph [2024-11-09 05:43:03,884 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2024-11-09 05:43:03,891 INFO L176 IcfgInterpreter]: Starting interpretation [2024-11-09 05:43:03,891 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs