./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.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_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/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_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/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_88917e10-774b-4ea3-8842-5afe3977ba81/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 2528ab0154bfd45dbc6e33de3a31029199c439afce343ebf61a330fa9c381cd3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 06:09:14,655 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 06:09:14,750 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 06:09:14,756 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 06:09:14,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 06:09:14,784 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 06:09:14,785 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 06:09:14,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 06:09:14,786 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 06:09:14,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 06:09:14,788 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 06:09:14,788 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 06:09:14,789 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 06:09:14,789 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 06:09:14,789 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 06:09:14,790 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 06:09:14,790 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 06:09:14,793 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 06:09:14,794 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 06:09:14,794 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 06:09:14,797 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 06:09:14,797 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 06:09:14,798 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 06:09:14,798 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 06:09:14,798 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 06:09:14,799 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 06:09:14,799 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 06:09:14,799 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 06:09:14,799 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 06:09:14,800 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 06:09:14,800 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 06:09:14,800 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 06:09:14,803 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 06:09:14,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 06:09:14,804 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 06:09:14,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:09:14,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 06:09:14,805 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 06:09:14,805 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 06:09:14,806 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 06:09:14,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 06:09:14,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 06:09:14,807 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 06:09:14,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 06:09:14,808 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_88917e10-774b-4ea3-8842-5afe3977ba81/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2528ab0154bfd45dbc6e33de3a31029199c439afce343ebf61a330fa9c381cd3 [2024-11-09 06:09:15,110 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 06:09:15,136 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 06:09:15,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 06:09:15,142 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 06:09:15,142 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 06:09:15,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 06:09:17,137 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 06:09:17,860 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 06:09:17,861 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i [2024-11-09 06:09:17,909 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/data/a8cea80d2/df1b5eb19b53409fa4e2f2118d636b70/FLAG23d58c75a [2024-11-09 06:09:18,226 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/data/a8cea80d2/df1b5eb19b53409fa4e2f2118d636b70 [2024-11-09 06:09:18,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 06:09:18,230 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 06:09:18,232 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 06:09:18,232 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 06:09:18,246 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 06:09:18,247 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:09:18" (1/1) ... [2024-11-09 06:09:18,248 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@695178e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:18, skipping insertion in model container [2024-11-09 06:09:18,249 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:09:18" (1/1) ... [2024-11-09 06:09:18,426 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 06:09:21,099 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_88917e10-774b-4ea3-8842-5afe3977ba81/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i[313663,313676] [2024-11-09 06:09:21,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:09:21,251 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 06:09:21,428 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"); [5569] [2024-11-09 06:09:21,429 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)); [5576] [2024-11-09 06:09:21,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile (".pushsection .smp_locks,\"a\"\n.balign 4\n.long 671f - .\n.popsection\n671:\n\tlock; bts %2, %0; setc %1": "+m" (*addr), "=qm" (c): "Ir" (nr): "memory"); [5584-5585] [2024-11-09 06:09:21,439 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %1,%0": "=r" (ret): "m" (*((unsigned short volatile *)addr)): "memory"); [5763] [2024-11-09 06:09:21,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5771] [2024-11-09 06:09:21,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movw %0,%1": : "r" (val), "m" (*((unsigned short volatile *)addr)): "memory"); [5778] [2024-11-09 06:09:21,440 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5785] [2024-11-09 06:09:21,451 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)); [5982-5983] [2024-11-09 06:09:21,453 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)); [6011-6012] [2024-11-09 06:09:21,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"include/asm-generic/dma-mapping-common.h"), "i" (108), "i" (12UL)); [6041-6042] [2024-11-09 06:09:21,461 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" (120), "i" (12UL)); [6071-6072] [2024-11-09 06:09:21,469 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" (507), "i" (12UL)); [6302-6303] [2024-11-09 06:09:21,473 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6308] [2024-11-09 06:09:21,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8322] [2024-11-09 06:09:21,595 WARN L75 lationResultReporter]: Unsoundness Warning: ignored call to __builtin_prefetch C: __builtin_prefetch((void const *)(& np->rx_skbuff) + ((unsigned long )np->cur_rx & 31UL)) [8447] [2024-11-09 06:09:21,668 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/ldvuser/mutilin/launch/work/current--X--drivers/--X--defaultlinux-4.2-rc1.tar.xz--X--43_2a--X--cpachecker/linux-4.2-rc1.tar.xz/csd_deg_dscv/10705/dscv_tempdir/dscv/ri/43_2a/drivers/net/ethernet/natsemi/natsemi.c"), "i" (3315), "i" (12UL)); [9740-9741] [2024-11-09 06:09:21,699 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_88917e10-774b-4ea3-8842-5afe3977ba81/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i[313663,313676] [2024-11-09 06:09:21,772 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 06:09:22,027 INFO L204 MainTranslator]: Completed translation [2024-11-09 06:09:22,028 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22 WrapperNode [2024-11-09 06:09:22,028 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 06:09:22,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 06:09:22,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 06:09:22,030 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 06:09:22,037 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,163 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,418 INFO L138 Inliner]: procedures = 323, calls = 2249, calls flagged for inlining = 156, calls inlined = 136, statements flattened = 5722 [2024-11-09 06:09:22,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 06:09:22,420 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 06:09:22,420 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 06:09:22,420 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 06:09:22,430 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,431 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,771 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,813 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,844 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,863 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,908 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 06:09:22,909 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 06:09:22,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 06:09:22,910 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 06:09:22,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (1/1) ... [2024-11-09 06:09:22,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 06:09:22,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:09:22,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 06:09:22,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 06:09:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure drain_rx [2024-11-09 06:09:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_rx [2024-11-09 06:09:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2024-11-09 06:09:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2024-11-09 06:09:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_shutdown_3 [2024-11-09 06:09:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_shutdown_3 [2024-11-09 06:09:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-09 06:09:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_write [2024-11-09 06:09:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_write [2024-11-09 06:09:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 06:09:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2024-11-09 06:09:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2024-11-09 06:09:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 06:09:22,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 06:09:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_external [2024-11-09 06:09:22,989 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_external [2024-11-09 06:09:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 06:09:22,989 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 06:09:22,989 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-09 06:09:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-09 06:09:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_tx_done [2024-11-09 06:09:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_tx_done [2024-11-09 06:09:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 06:09:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 06:09:22,990 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2024-11-09 06:09:22,990 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2024-11-09 06:09:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-09 06:09:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-09 06:09:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure get_stats [2024-11-09 06:09:22,991 INFO L138 BoogieDeclarations]: Found implementation of procedure get_stats [2024-11-09 06:09:22,991 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 06:09:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 06:09:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_rx [2024-11-09 06:09:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_rx [2024-11-09 06:09:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2024-11-09 06:09:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2024-11-09 06:09:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure disable_irq [2024-11-09 06:09:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_irq [2024-11-09 06:09:22,992 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2024-11-09 06:09:22,992 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2024-11-09 06:09:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 06:09:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 06:09:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure reinit_ring [2024-11-09 06:09:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure reinit_ring [2024-11-09 06:09:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-09 06:09:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-09 06:09:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_ok [2024-11-09 06:09:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_ok [2024-11-09 06:09:22,993 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2024-11-09 06:09:22,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2024-11-09 06:09:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-09 06:09:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-09 06:09:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_on [2024-11-09 06:09:22,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_on [2024-11-09 06:09:22,994 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2024-11-09 06:09:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2024-11-09 06:09:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_change_mtu [2024-11-09 06:09:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_change_mtu [2024-11-09 06:09:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-09 06:09:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-09 06:09:22,995 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 06:09:22,995 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 06:09:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure init_registers [2024-11-09 06:09:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure init_registers [2024-11-09 06:09:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 06:09:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 06:09:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2024-11-09 06:09:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2024-11-09 06:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-09 06:09:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-09 06:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies [2024-11-09 06:09:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies [2024-11-09 06:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 06:09:22,997 INFO L130 BoogieDeclarations]: Found specification of procedure switch_port_internal [2024-11-09 06:09:22,997 INFO L138 BoogieDeclarations]: Found implementation of procedure switch_port_internal [2024-11-09 06:09:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2024-11-09 06:09:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2024-11-09 06:09:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2024-11-09 06:09:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2024-11-09 06:09:22,998 INFO L130 BoogieDeclarations]: Found specification of procedure dump_ring [2024-11-09 06:09:22,998 INFO L138 BoogieDeclarations]: Found implementation of procedure dump_ring [2024-11-09 06:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 06:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2024-11-09 06:09:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2024-11-09 06:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-09 06:09:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-09 06:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 06:09:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 06:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-09 06:09:22,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-09 06:09:22,999 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 06:09:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 06:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure __set_rx_mode [2024-11-09 06:09:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure __set_rx_mode [2024-11-09 06:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-09 06:09:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-09 06:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_attach [2024-11-09 06:09:23,000 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_attach [2024-11-09 06:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 06:09:23,000 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-09 06:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-09 06:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure netif_queue_stopped [2024-11-09 06:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_queue_stopped [2024-11-09 06:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 06:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-09 06:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-09 06:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure intr_handler [2024-11-09 06:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure intr_handler [2024-11-09 06:09:23,001 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_read [2024-11-09 06:09:23,001 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_read [2024-11-09 06:09:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 06:09:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 06:09:23,002 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 06:09:23,002 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 06:09:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-09 06:09:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-09 06:09:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_stop_rxtx [2024-11-09 06:09:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_stop_rxtx [2024-11-09 06:09:23,003 INFO L130 BoogieDeclarations]: Found specification of procedure __get_stats [2024-11-09 06:09:23,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __get_stats [2024-11-09 06:09:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure ns_tx_timeout [2024-11-09 06:09:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_tx_timeout [2024-11-09 06:09:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure set_bufsize [2024-11-09 06:09:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bufsize [2024-11-09 06:09:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-09 06:09:23,004 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_irq [2024-11-09 06:09:23,004 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_irq [2024-11-09 06:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-09 06:09:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-09 06:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_reset [2024-11-09 06:09:23,005 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_reset [2024-11-09 06:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 06:09:23,005 INFO L130 BoogieDeclarations]: Found specification of procedure activate_pending_timer_2 [2024-11-09 06:09:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_pending_timer_2 [2024-11-09 06:09:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure drain_ring [2024-11-09 06:09:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_ring [2024-11-09 06:09:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 06:09:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2024-11-09 06:09:23,006 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2024-11-09 06:09:23,006 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-09 06:09:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-09 06:09:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-09 06:09:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-09 06:09:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer_sync [2024-11-09 06:09:23,007 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer_sync [2024-11-09 06:09:23,007 INFO L130 BoogieDeclarations]: Found specification of procedure move_int_phy [2024-11-09 06:09:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure move_int_phy [2024-11-09 06:09:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_ioctl [2024-11-09 06:09:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_ioctl [2024-11-09 06:09:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2024-11-09 06:09:23,008 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2024-11-09 06:09:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 06:09:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 06:09:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure enable_wol_mode [2024-11-09 06:09:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_wol_mode [2024-11-09 06:09:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_resume [2024-11-09 06:09:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_resume [2024-11-09 06:09:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_remove1 [2024-11-09 06:09:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_remove1 [2024-11-09 06:09:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 06:09:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev16 [2024-11-09 06:09:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev16 [2024-11-09 06:09:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2024-11-09 06:09:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2024-11-09 06:09:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure init_ring [2024-11-09 06:09:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure init_ring [2024-11-09 06:09:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irq [2024-11-09 06:09:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irq [2024-11-09 06:09:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2024-11-09 06:09:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2024-11-09 06:09:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 06:09:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 06:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 06:09:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 06:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_disable [2024-11-09 06:09:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_disable [2024-11-09 06:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure enable_irq [2024-11-09 06:09:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_irq [2024-11-09 06:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 06:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_timer_2 [2024-11-09 06:09:23,012 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_timer_2 [2024-11-09 06:09:23,012 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2024-11-09 06:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2024-11-09 06:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure __bitrev8 [2024-11-09 06:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __bitrev8 [2024-11-09 06:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 06:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure mii_getbit [2024-11-09 06:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_getbit [2024-11-09 06:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_device [2024-11-09 06:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_device [2024-11-09 06:09:23,013 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-09 06:09:23,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-09 06:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 06:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2024-11-09 06:09:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2024-11-09 06:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure reg_timer_2 [2024-11-09 06:09:23,014 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_timer_2 [2024-11-09 06:09:23,014 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irq [2024-11-09 06:09:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irq [2024-11-09 06:09:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2024-11-09 06:09:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2024-11-09 06:09:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ns_ioaddr [2024-11-09 06:09:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_ioaddr [2024-11-09 06:09:23,015 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_resume_early_3 [2024-11-09 06:09:23,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_resume_early_3 [2024-11-09 06:09:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2024-11-09 06:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2024-11-09 06:09:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure mii_send_bits [2024-11-09 06:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_send_bits [2024-11-09 06:09:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure refill_rx [2024-11-09 06:09:23,016 INFO L138 BoogieDeclarations]: Found implementation of procedure refill_rx [2024-11-09 06:09:23,016 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_poll_controller [2024-11-09 06:09:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_poll_controller [2024-11-09 06:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure check_link [2024-11-09 06:09:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure check_link [2024-11-09 06:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2024-11-09 06:09:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2024-11-09 06:09:23,017 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2024-11-09 06:09:23,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2024-11-09 06:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2024-11-09 06:09:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2024-11-09 06:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure drain_tx [2024-11-09 06:09:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure drain_tx [2024-11-09 06:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure natsemi_irq_enable [2024-11-09 06:09:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure natsemi_irq_enable [2024-11-09 06:09:23,018 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-09 06:09:23,018 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-09 06:09:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2024-11-09 06:09:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2024-11-09 06:09:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2024-11-09 06:09:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2024-11-09 06:09:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure init_phy_fixup [2024-11-09 06:09:23,019 INFO L138 BoogieDeclarations]: Found implementation of procedure init_phy_fixup [2024-11-09 06:09:23,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 06:09:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure miiport_read [2024-11-09 06:09:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure miiport_read [2024-11-09 06:09:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2024-11-09 06:09:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2024-11-09 06:09:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2024-11-09 06:09:23,020 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2024-11-09 06:09:23,020 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2024-11-09 06:09:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2024-11-09 06:09:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure mii_nway_result [2024-11-09 06:09:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_nway_result [2024-11-09 06:09:23,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 06:09:23,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 06:09:23,943 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 06:09:23,947 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 06:09:24,378 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 06:09:37,507 INFO L? ?]: Removed 2588 outVars from TransFormulas that were not future-live. [2024-11-09 06:09:37,507 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 06:09:42,810 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 06:09:42,811 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 06:09:42,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:09:42 BoogieIcfgContainer [2024-11-09 06:09:42,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 06:09:42,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 06:09:42,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 06:09:42,817 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 06:09:42,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:09:18" (1/3) ... [2024-11-09 06:09:42,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a59a6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:09:42, skipping insertion in model container [2024-11-09 06:09:42,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:09:22" (2/3) ... [2024-11-09 06:09:42,818 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a59a6a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:09:42, skipping insertion in model container [2024-11-09 06:09:42,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 06:09:42" (3/3) ... [2024-11-09 06:09:42,820 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--natsemi--natsemi.ko-entry_point.cil.out.i [2024-11-09 06:09:42,842 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 06:09:42,842 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 06:09:42,963 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 06:09:42,970 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;@3d21fa45, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 06:09:42,970 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 06:09:42,980 INFO L276 IsEmpty]: Start isEmpty. Operand has 1877 states, 1066 states have (on average 1.2917448405253282) internal successors, (1377), 1100 states have internal predecessors, (1377), 695 states have call successors, (695), 115 states have call predecessors, (695), 114 states have return successors, (687), 682 states have call predecessors, (687), 687 states have call successors, (687) [2024-11-09 06:09:43,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-09 06:09:43,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:09:43,012 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:09:43,013 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:09:43,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:09:43,020 INFO L85 PathProgramCache]: Analyzing trace with hash 968933990, now seen corresponding path program 1 times [2024-11-09 06:09:43,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:09:43,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961243150] [2024-11-09 06:09:43,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:09:43,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:10:10,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:10:11,158 INFO L134 CoverageAnalysis]: Checked inductivity of 620 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 620 trivial. 0 not checked. [2024-11-09 06:10:11,161 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:10:11,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961243150] [2024-11-09 06:10:11,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961243150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:10:11,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:10:11,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:10:11,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946653867] [2024-11-09 06:10:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:10:11,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:10:11,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:10:11,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:10:11,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:10:11,215 INFO L87 Difference]: Start difference. First operand has 1877 states, 1066 states have (on average 1.2917448405253282) internal successors, (1377), 1100 states have internal predecessors, (1377), 695 states have call successors, (695), 115 states have call predecessors, (695), 114 states have return successors, (687), 682 states have call predecessors, (687), 687 states have call successors, (687) Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:10:13,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:18,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:19,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:25,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:10:27,848 WARN L539 Checker$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 06:10:29,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:10:29,040 INFO L93 Difference]: Finished difference Result 5301 states and 7814 transitions. [2024-11-09 06:10:29,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:10:29,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 199 [2024-11-09 06:10:29,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:10:29,103 INFO L225 Difference]: With dead ends: 5301 [2024-11-09 06:10:29,103 INFO L226 Difference]: Without dead ends: 3432 [2024-11-09 06:10:29,125 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 06:10:29,129 INFO L432 NwaCegarLoop]: 2650 mSDtfsCounter, 2354 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 609 mSolverCounterSat, 2 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2354 SdHoareTripleChecker+Valid, 5043 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 609 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:10:29,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2354 Valid, 5043 Invalid, 615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2 Valid, 609 Invalid, 4 Unknown, 0 Unchecked, 17.4s Time] [2024-11-09 06:10:29,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3432 states. [2024-11-09 06:10:29,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3432 to 3429. [2024-11-09 06:10:29,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3429 states, 1945 states have (on average 1.27866323907455) internal successors, (2487), 1992 states have internal predecessors, (2487), 1261 states have call successors, (1261), 223 states have call predecessors, (1261), 222 states have return successors, (1260), 1251 states have call predecessors, (1260), 1260 states have call successors, (1260) [2024-11-09 06:10:29,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3429 states to 3429 states and 5008 transitions. [2024-11-09 06:10:29,583 INFO L78 Accepts]: Start accepts. Automaton has 3429 states and 5008 transitions. Word has length 199 [2024-11-09 06:10:29,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:10:29,587 INFO L471 AbstractCegarLoop]: Abstraction has 3429 states and 5008 transitions. [2024-11-09 06:10:29,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 2 states have call successors, (22), 2 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2024-11-09 06:10:29,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3429 states and 5008 transitions. [2024-11-09 06:10:29,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2024-11-09 06:10:29,615 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:10:29,615 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:10:29,616 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 06:10:29,616 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:10:29,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:10:29,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1419989311, now seen corresponding path program 1 times [2024-11-09 06:10:29,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:10:29,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757767084] [2024-11-09 06:10:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:10:29,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:10:58,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:11:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 644 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 644 trivial. 0 not checked. [2024-11-09 06:11:00,064 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:11:00,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757767084] [2024-11-09 06:11:00,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757767084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:11:00,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:11:00,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 06:11:00,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050665938] [2024-11-09 06:11:00,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:11:00,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 06:11:00,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:11:00,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 06:11:00,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:11:00,075 INFO L87 Difference]: Start difference. First operand 3429 states and 5008 transitions. Second operand has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-09 06:11:02,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:04,439 WARN L539 Checker$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 06:11:09,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:13,064 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:16,790 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:24,686 WARN L539 Checker$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 06:11:25,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:27,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:11:29,687 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 06:11:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:11:43,239 INFO L93 Difference]: Finished difference Result 13348 states and 19467 transitions. [2024-11-09 06:11:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 06:11:43,240 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 257 [2024-11-09 06:11:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:11:43,328 INFO L225 Difference]: With dead ends: 13348 [2024-11-09 06:11:43,329 INFO L226 Difference]: Without dead ends: 9956 [2024-11-09 06:11:43,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:11:43,355 INFO L432 NwaCegarLoop]: 2454 mSDtfsCounter, 7712 mSDsluCounter, 3438 mSDsCounter, 0 mSdLazyCounter, 2152 mSolverCounterSat, 2557 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 40.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7712 SdHoareTripleChecker+Valid, 5892 SdHoareTripleChecker+Invalid, 4715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2557 IncrementalHoareTripleChecker+Valid, 2152 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 42.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:11:43,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7712 Valid, 5892 Invalid, 4715 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2557 Valid, 2152 Invalid, 6 Unknown, 0 Unchecked, 42.3s Time] [2024-11-09 06:11:43,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9956 states. [2024-11-09 06:11:44,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9956 to 9904. [2024-11-09 06:11:44,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9904 states, 5650 states have (on average 1.2805309734513275) internal successors, (7235), 5783 states have internal predecessors, (7235), 3597 states have call successors, (3597), 657 states have call predecessors, (3597), 656 states have return successors, (3608), 3573 states have call predecessors, (3608), 3596 states have call successors, (3608) [2024-11-09 06:11:44,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9904 states to 9904 states and 14440 transitions. [2024-11-09 06:11:44,107 INFO L78 Accepts]: Start accepts. Automaton has 9904 states and 14440 transitions. Word has length 257 [2024-11-09 06:11:44,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:11:44,108 INFO L471 AbstractCegarLoop]: Abstraction has 9904 states and 14440 transitions. [2024-11-09 06:11:44,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.8) internal successors, (69), 5 states have internal predecessors, (69), 3 states have call successors, (35), 2 states have call predecessors, (35), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-09 06:11:44,109 INFO L276 IsEmpty]: Start isEmpty. Operand 9904 states and 14440 transitions. [2024-11-09 06:11:44,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2024-11-09 06:11:44,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:11:44,120 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 17, 17, 17, 17, 17, 5, 5, 5, 5, 5, 5, 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] [2024-11-09 06:11:44,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 06:11:44,121 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:11:44,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:11:44,122 INFO L85 PathProgramCache]: Analyzing trace with hash -983063099, now seen corresponding path program 1 times [2024-11-09 06:11:44,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:11:44,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193897558] [2024-11-09 06:11:44,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:11:44,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:04,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:06,131 INFO L134 CoverageAnalysis]: Checked inductivity of 1433 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1433 trivial. 0 not checked. [2024-11-09 06:12:06,132 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:06,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193897558] [2024-11-09 06:12:06,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193897558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:06,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:06,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 06:12:06,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159509224] [2024-11-09 06:12:06,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:06,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 06:12:06,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:06,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 06:12:06,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 06:12:06,140 INFO L87 Difference]: Start difference. First operand 9904 states and 14440 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-09 06:12:08,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:10,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:16,336 WARN L539 Checker$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 06:12:24,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:12:24,699 INFO L93 Difference]: Finished difference Result 12409 states and 17802 transitions. [2024-11-09 06:12:24,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 06:12:24,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 286 [2024-11-09 06:12:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:12:24,812 INFO L225 Difference]: With dead ends: 12409 [2024-11-09 06:12:24,812 INFO L226 Difference]: Without dead ends: 12406 [2024-11-09 06:12:24,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:12:24,826 INFO L432 NwaCegarLoop]: 2742 mSDtfsCounter, 1926 mSDsluCounter, 3951 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1926 SdHoareTripleChecker+Valid, 6693 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.1s IncrementalHoareTripleChecker+Time [2024-11-09 06:12:24,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1926 Valid, 6693 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 792 Invalid, 3 Unknown, 0 Unchecked, 18.1s Time] [2024-11-09 06:12:24,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12406 states. [2024-11-09 06:12:25,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12406 to 12406. [2024-11-09 06:12:25,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12406 states, 7003 states have (on average 1.2610309867199772) internal successors, (8831), 7154 states have internal predecessors, (8831), 4476 states have call successors, (4476), 927 states have call predecessors, (4476), 926 states have return successors, (4487), 4452 states have call predecessors, (4487), 4475 states have call successors, (4487) [2024-11-09 06:12:25,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12406 states to 12406 states and 17794 transitions. [2024-11-09 06:12:25,837 INFO L78 Accepts]: Start accepts. Automaton has 12406 states and 17794 transitions. Word has length 286 [2024-11-09 06:12:25,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:12:25,839 INFO L471 AbstractCegarLoop]: Abstraction has 12406 states and 17794 transitions. [2024-11-09 06:12:25,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 3 states have call successors, (29), 3 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2024-11-09 06:12:25,839 INFO L276 IsEmpty]: Start isEmpty. Operand 12406 states and 17794 transitions. [2024-11-09 06:12:25,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-09 06:12:25,854 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:12:25,854 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 8, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 06:12:25,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 06:12:25,855 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:12:25,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:12:25,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1592751947, now seen corresponding path program 1 times [2024-11-09 06:12:25,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:12:25,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691546140] [2024-11-09 06:12:25,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:12:25,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:12:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:12:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 680 trivial. 0 not checked. [2024-11-09 06:12:47,527 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:12:47,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691546140] [2024-11-09 06:12:47,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691546140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:12:47,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:12:47,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:12:47,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986747236] [2024-11-09 06:12:47,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:12:47,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:12:47,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:12:47,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:12:47,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:12:47,532 INFO L87 Difference]: Start difference. First operand 12406 states and 17794 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-09 06:12:49,646 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:12:53,072 WARN L539 Checker$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 06:12:59,946 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 06:13:03,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:03,600 INFO L93 Difference]: Finished difference Result 33796 states and 48368 transitions. [2024-11-09 06:13:03,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:13:03,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) Word has length 290 [2024-11-09 06:13:03,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:03,774 INFO L225 Difference]: With dead ends: 33796 [2024-11-09 06:13:03,774 INFO L226 Difference]: Without dead ends: 21440 [2024-11-09 06:13:03,853 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 06:13:03,855 INFO L432 NwaCegarLoop]: 2510 mSDtfsCounter, 2137 mSDsluCounter, 2305 mSDsCounter, 0 mSdLazyCounter, 642 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2137 SdHoareTripleChecker+Valid, 4815 SdHoareTripleChecker+Invalid, 653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 642 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.3s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:03,855 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2137 Valid, 4815 Invalid, 653 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 642 Invalid, 3 Unknown, 0 Unchecked, 15.3s Time] [2024-11-09 06:13:03,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21440 states. [2024-11-09 06:13:05,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21440 to 21413. [2024-11-09 06:13:05,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21413 states, 12071 states have (on average 1.2568966945572033) internal successors, (15172), 12357 states have internal predecessors, (15172), 7706 states have call successors, (7706), 1642 states have call predecessors, (7706), 1635 states have return successors, (7729), 7621 states have call predecessors, (7729), 7705 states have call successors, (7729) [2024-11-09 06:13:05,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21413 states to 21413 states and 30607 transitions. [2024-11-09 06:13:05,771 INFO L78 Accepts]: Start accepts. Automaton has 21413 states and 30607 transitions. Word has length 290 [2024-11-09 06:13:05,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:05,772 INFO L471 AbstractCegarLoop]: Abstraction has 21413 states and 30607 transitions. [2024-11-09 06:13:05,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 2 states have call successors, (43), 2 states have call predecessors, (43), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2024-11-09 06:13:05,773 INFO L276 IsEmpty]: Start isEmpty. Operand 21413 states and 30607 transitions. [2024-11-09 06:13:05,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-11-09 06:13:05,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:05,818 INFO L215 NwaCegarLoop]: trace histogram [18, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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] [2024-11-09 06:13:05,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 06:13:05,818 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:13:05,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:05,819 INFO L85 PathProgramCache]: Analyzing trace with hash -175023296, now seen corresponding path program 1 times [2024-11-09 06:13:05,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:05,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343357001] [2024-11-09 06:13:05,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:05,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:13:31,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:13:32,138 INFO L134 CoverageAnalysis]: Checked inductivity of 1264 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 1258 trivial. 0 not checked. [2024-11-09 06:13:32,139 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:13:32,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343357001] [2024-11-09 06:13:32,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343357001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:13:32,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:13:32,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:13:32,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658809314] [2024-11-09 06:13:32,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:13:32,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:13:32,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:13:32,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:13:32,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:13:32,142 INFO L87 Difference]: Start difference. First operand 21413 states and 30607 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-09 06:13:34,265 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:37,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:40,720 WARN L539 Checker$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 06:13:42,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:44,940 WARN L539 Checker$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 06:13:48,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:52,463 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:53,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:13:56,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:13:56,691 INFO L93 Difference]: Finished difference Result 56086 states and 79955 transitions. [2024-11-09 06:13:56,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:13:56,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) Word has length 514 [2024-11-09 06:13:56,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:13:56,926 INFO L225 Difference]: With dead ends: 56086 [2024-11-09 06:13:56,926 INFO L226 Difference]: Without dead ends: 34723 [2024-11-09 06:13:57,035 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 06:13:57,036 INFO L432 NwaCegarLoop]: 4109 mSDtfsCounter, 2252 mSDsluCounter, 2357 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 2 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2252 SdHoareTripleChecker+Valid, 6466 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.2s IncrementalHoareTripleChecker+Time [2024-11-09 06:13:57,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2252 Valid, 6466 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 786 Invalid, 5 Unknown, 0 Unchecked, 23.2s Time] [2024-11-09 06:13:57,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34723 states. [2024-11-09 06:13:59,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34723 to 34708. [2024-11-09 06:13:59,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34708 states, 19706 states have (on average 1.2582969653912515) internal successors, (24796), 20143 states have internal predecessors, (24796), 12284 states have call successors, (12284), 2724 states have call predecessors, (12284), 2717 states have return successors, (12307), 12165 states have call predecessors, (12307), 12283 states have call successors, (12307) [2024-11-09 06:13:59,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34708 states to 34708 states and 49387 transitions. [2024-11-09 06:13:59,477 INFO L78 Accepts]: Start accepts. Automaton has 34708 states and 49387 transitions. Word has length 514 [2024-11-09 06:13:59,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:13:59,478 INFO L471 AbstractCegarLoop]: Abstraction has 34708 states and 49387 transitions. [2024-11-09 06:13:59,479 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 2 states have call successors, (78), 2 states have call predecessors, (78), 1 states have return successors, (72), 2 states have call predecessors, (72), 2 states have call successors, (72) [2024-11-09 06:13:59,479 INFO L276 IsEmpty]: Start isEmpty. Operand 34708 states and 49387 transitions. [2024-11-09 06:13:59,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-09 06:13:59,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:13:59,541 INFO L215 NwaCegarLoop]: trace histogram [18, 13, 13, 13, 13, 13, 13, 13, 13, 13, 10, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:13:59,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 06:13:59,542 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:13:59,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:13:59,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1129104994, now seen corresponding path program 1 times [2024-11-09 06:13:59,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:13:59,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053675463] [2024-11-09 06:13:59,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:13:59,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:14:21,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:14:22,376 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2024-11-09 06:14:22,376 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:14:22,377 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053675463] [2024-11-09 06:14:22,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053675463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:14:22,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:14:22,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:14:22,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816679088] [2024-11-09 06:14:22,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:14:22,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:14:22,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:14:22,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:14:22,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:14:22,381 INFO L87 Difference]: Start difference. First operand 34708 states and 49387 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2024-11-09 06:14:24,458 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 06:14:26,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:29,667 WARN L539 Checker$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 06:14:31,677 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:34,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:14:39,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:14:39,750 INFO L93 Difference]: Finished difference Result 69372 states and 98715 transitions. [2024-11-09 06:14:39,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:14:39,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) Word has length 541 [2024-11-09 06:14:39,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:14:40,014 INFO L225 Difference]: With dead ends: 69372 [2024-11-09 06:14:40,014 INFO L226 Difference]: Without dead ends: 34702 [2024-11-09 06:14:40,171 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 06:14:40,172 INFO L432 NwaCegarLoop]: 2447 mSDtfsCounter, 0 mSDsluCounter, 2444 mSDsCounter, 0 mSdLazyCounter, 562 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4891 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 562 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.9s IncrementalHoareTripleChecker+Time [2024-11-09 06:14:40,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4891 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 562 Invalid, 4 Unknown, 0 Unchecked, 15.9s Time] [2024-11-09 06:14:40,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34702 states. [2024-11-09 06:14:41,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34702 to 34690. [2024-11-09 06:14:42,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34690 states, 19688 states have (on average 1.2579236082893133) internal successors, (24766), 20131 states have internal predecessors, (24766), 12284 states have call successors, (12284), 2724 states have call predecessors, (12284), 2717 states have return successors, (12307), 12159 states have call predecessors, (12307), 12283 states have call successors, (12307) [2024-11-09 06:14:42,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34690 states to 34690 states and 49357 transitions. [2024-11-09 06:14:42,270 INFO L78 Accepts]: Start accepts. Automaton has 34690 states and 49357 transitions. Word has length 541 [2024-11-09 06:14:42,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:14:42,273 INFO L471 AbstractCegarLoop]: Abstraction has 34690 states and 49357 transitions. [2024-11-09 06:14:42,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 2 states have call successors, (80), 2 states have call predecessors, (80), 1 states have return successors, (74), 2 states have call predecessors, (74), 2 states have call successors, (74) [2024-11-09 06:14:42,273 INFO L276 IsEmpty]: Start isEmpty. Operand 34690 states and 49357 transitions. [2024-11-09 06:14:42,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 603 [2024-11-09 06:14:42,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:14:42,327 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 10, 8, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:14:42,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 06:14:42,328 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:14:42,328 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:14:42,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1433991166, now seen corresponding path program 1 times [2024-11-09 06:14:42,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:14:42,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985340494] [2024-11-09 06:14:42,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:14:42,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:06,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:07,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2144 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 2133 trivial. 0 not checked. [2024-11-09 06:15:07,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:15:07,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985340494] [2024-11-09 06:15:07,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985340494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:15:07,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 06:15:07,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 06:15:07,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065315666] [2024-11-09 06:15:07,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:15:07,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:15:07,954 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:15:07,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:15:07,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 06:15:07,956 INFO L87 Difference]: Start difference. First operand 34690 states and 49357 transitions. Second operand has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-09 06:15:10,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:12,282 WARN L539 Checker$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 06:15:15,437 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:16,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:15:20,802 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 06:15:26,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:15:26,193 INFO L93 Difference]: Finished difference Result 69522 states and 98997 transitions. [2024-11-09 06:15:26,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:15:26,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) Word has length 602 [2024-11-09 06:15:26,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:15:26,458 INFO L225 Difference]: With dead ends: 69522 [2024-11-09 06:15:26,459 INFO L226 Difference]: Without dead ends: 34882 [2024-11-09 06:15:26,840 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 06:15:26,841 INFO L432 NwaCegarLoop]: 2445 mSDtfsCounter, 3 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 567 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 4884 SdHoareTripleChecker+Invalid, 571 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 567 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2024-11-09 06:15:26,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 4884 Invalid, 571 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 567 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2024-11-09 06:15:26,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34882 states. [2024-11-09 06:15:29,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34882 to 34714. [2024-11-09 06:15:29,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34714 states, 19712 states have (on average 1.257609577922078) internal successors, (24790), 20155 states have internal predecessors, (24790), 12284 states have call successors, (12284), 2724 states have call predecessors, (12284), 2717 states have return successors, (12307), 12159 states have call predecessors, (12307), 12283 states have call successors, (12307) [2024-11-09 06:15:29,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34714 states to 34714 states and 49381 transitions. [2024-11-09 06:15:29,747 INFO L78 Accepts]: Start accepts. Automaton has 34714 states and 49381 transitions. Word has length 602 [2024-11-09 06:15:29,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:15:29,749 INFO L471 AbstractCegarLoop]: Abstraction has 34714 states and 49381 transitions. [2024-11-09 06:15:29,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.666666666666664) internal successors, (188), 3 states have internal predecessors, (188), 2 states have call successors, (85), 2 states have call predecessors, (85), 2 states have return successors, (79), 2 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-09 06:15:29,749 INFO L276 IsEmpty]: Start isEmpty. Operand 34714 states and 49381 transitions. [2024-11-09 06:15:29,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2024-11-09 06:15:29,819 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:15:29,820 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 12, 10, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:15:29,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 06:15:29,821 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:15:29,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:15:29,821 INFO L85 PathProgramCache]: Analyzing trace with hash 750382034, now seen corresponding path program 1 times [2024-11-09 06:15:29,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:15:29,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944963050] [2024-11-09 06:15:29,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:29,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 06:15:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:15:56,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2221 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 2209 trivial. 0 not checked. [2024-11-09 06:15:56,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 06:15:56,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944963050] [2024-11-09 06:15:56,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944963050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 06:15:56,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2138352990] [2024-11-09 06:15:56,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:15:56,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 06:15:56,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 06:15:56,344 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 06:15:56,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 06:16:25,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 06:16:25,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 7106 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 06:16:25,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 06:16:25,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2221 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 1934 trivial. 0 not checked. [2024-11-09 06:16:25,603 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 06:16:25,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2138352990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 06:16:25,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 06:16:25,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 06:16:25,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797797311] [2024-11-09 06:16:25,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 06:16:25,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 06:16:25,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 06:16:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 06:16:25,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:16:25,608 INFO L87 Difference]: Start difference. First operand 34714 states and 49381 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-09 06:16:27,742 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 06:16:29,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 06:16:33,342 WARN L539 Checker$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 06:16:42,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 06:16:42,252 INFO L93 Difference]: Finished difference Result 69594 states and 99093 transitions. [2024-11-09 06:16:42,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 06:16:42,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) Word has length 618 [2024-11-09 06:16:42,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 06:16:42,519 INFO L225 Difference]: With dead ends: 69594 [2024-11-09 06:16:42,520 INFO L226 Difference]: Without dead ends: 34930 [2024-11-09 06:16:42,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 06:16:42,740 INFO L432 NwaCegarLoop]: 2444 mSDtfsCounter, 3 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 0 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4883 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.4s IncrementalHoareTripleChecker+Time [2024-11-09 06:16:42,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4883 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 569 Invalid, 3 Unknown, 0 Unchecked, 15.4s Time] [2024-11-09 06:16:42,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34930 states. [2024-11-09 06:16:45,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34930 to 34738. [2024-11-09 06:16:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34738 states, 19736 states have (on average 1.2572963113092825) internal successors, (24814), 20179 states have internal predecessors, (24814), 12284 states have call successors, (12284), 2724 states have call predecessors, (12284), 2717 states have return successors, (12307), 12159 states have call predecessors, (12307), 12283 states have call successors, (12307) [2024-11-09 06:16:45,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34738 states to 34738 states and 49405 transitions. [2024-11-09 06:16:45,525 INFO L78 Accepts]: Start accepts. Automaton has 34738 states and 49405 transitions. Word has length 618 [2024-11-09 06:16:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 06:16:45,526 INFO L471 AbstractCegarLoop]: Abstraction has 34738 states and 49405 transitions. [2024-11-09 06:16:45,526 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 2 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (85), 2 states have call predecessors, (85), 2 states have call successors, (85) [2024-11-09 06:16:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 34738 states and 49405 transitions. [2024-11-09 06:16:45,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 638 [2024-11-09 06:16:45,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 06:16:45,554 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 14, 13, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:16:45,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 06:16:45,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88917e10-774b-4ea3-8842-5afe3977ba81/bin/utaipan-verify-YMUCfTKeje/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-09 06:16:45,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 06:16:45,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 06:16:45,756 INFO L85 PathProgramCache]: Analyzing trace with hash -425355810, now seen corresponding path program 1 times [2024-11-09 06:16:45,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 06:16:45,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474458502] [2024-11-09 06:16:45,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 06:16:45,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms