./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--3com--3c589_cs.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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/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_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/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--3com--3c589_cs.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/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_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/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 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-09 05:33:57,004 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 05:33:57,084 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-09 05:33:57,092 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 05:33:57,092 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 05:33:57,139 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 05:33:57,141 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 05:33:57,141 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 05:33:57,143 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 05:33:57,144 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 05:33:57,144 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-09 05:33:57,145 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-09 05:33:57,146 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-09 05:33:57,146 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-09 05:33:57,149 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-09 05:33:57,149 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-09 05:33:57,150 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-09 05:33:57,150 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-09 05:33:57,150 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-09 05:33:57,151 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-09 05:33:57,151 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-09 05:33:57,156 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-09 05:33:57,156 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 05:33:57,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 05:33:57,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 05:33:57,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 05:33:57,159 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 05:33:57,159 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 05:33:57,160 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 05:33:57,160 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 05:33:57,160 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 05:33:57,161 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 05:33:57,162 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 05:33:57,162 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 05:33:57,163 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 05:33:57,163 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:33:57,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 05:33:57,164 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 05:33:57,164 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 05:33:57,165 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-09 05:33:57,165 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 05:33:57,165 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 05:33:57,166 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-09 05:33:57,166 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 05:33:57,167 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_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 983ce5e5a67d7f1a953a7dc1806bc74e6e7b7100ad78daf1e74f2f1bd8e39c48 [2024-11-09 05:33:57,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 05:33:57,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 05:33:57,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 05:33:57,523 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 05:33:57,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 05:33:57,525 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i Unable to find full path for "g++" [2024-11-09 05:33:59,592 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 05:34:00,188 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 05:34:00,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2024-11-09 05:34:00,246 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/data/bb5e6c3cf/faf7463c0337445cbf03c1c14dc604a6/FLAGecf605d35 [2024-11-09 05:34:00,268 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/data/bb5e6c3cf/faf7463c0337445cbf03c1c14dc604a6 [2024-11-09 05:34:00,270 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 05:34:00,271 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 05:34:00,273 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 05:34:00,273 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 05:34:00,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 05:34:00,278 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:34:00" (1/1) ... [2024-11-09 05:34:00,279 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae5c2ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:00, skipping insertion in model container [2024-11-09 05:34:00,280 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 05:34:00" (1/1) ... [2024-11-09 05:34:00,434 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 05:34:02,140 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_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2024-11-09 05:34:02,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:34:02,268 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 05:34:02,460 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"); [5698] [2024-11-09 05:34:02,462 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)); [5705] [2024-11-09 05:34:02,470 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (831), "i" (12UL)); [5838-5839] [2024-11-09 05:34:02,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (43UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5844-5846] [2024-11-09 05:34:02,476 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (836), "i" (12UL)); [5868-5869] [2024-11-09 05:34:02,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [5874-5876] [2024-11-09 05:34:02,477 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 *)"./arch/x86/include/asm/paravirt.h"), "i" (841), "i" (12UL)); [5897-5898] [2024-11-09 05:34:02,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5903-5905] [2024-11-09 05:34:02,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5969] [2024-11-09 05:34:02,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5977] [2024-11-09 05:34:02,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5984] [2024-11-09 05:34:02,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5992] [2024-11-09 05:34:02,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [6000] [2024-11-09 05:34:02,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [6007] [2024-11-09 05:34:02,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [6014] [2024-11-09 05:34:02,666 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i[239406,239419] [2024-11-09 05:34:02,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 05:34:02,883 INFO L204 MainTranslator]: Completed translation [2024-11-09 05:34:02,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02 WrapperNode [2024-11-09 05:34:02,884 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 05:34:02,885 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 05:34:02,885 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 05:34:02,885 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 05:34:02,894 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:02,956 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,139 INFO L138 Inliner]: procedures = 178, calls = 1239, calls flagged for inlining = 86, calls inlined = 83, statements flattened = 3111 [2024-11-09 05:34:03,139 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 05:34:03,141 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 05:34:03,141 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 05:34:03,142 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 05:34:03,154 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,154 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,198 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,329 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,383 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 05:34:03,384 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 05:34:03,384 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 05:34:03,384 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 05:34:03,385 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (1/1) ... [2024-11-09 05:34:03,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-09 05:34:03,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/z3 [2024-11-09 05:34:03,419 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-09 05:34:03,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cd168a75-077a-473d-b4b6-8e1ebcaaf3b1/bin/utaipan-verify-YMUCfTKeje/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-09 05:34:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-09 05:34:03,457 INFO L130 BoogieDeclarations]: Found specification of procedure el3_config [2024-11-09 05:34:03,457 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_config [2024-11-09 05:34:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-09 05:34:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-09 05:34:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-09 05:34:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-09 05:34:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-09 05:34:03,458 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-09 05:34:03,458 INFO L130 BoogieDeclarations]: Found specification of procedure set_rx_mode [2024-11-09 05:34:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure set_rx_mode [2024-11-09 05:34:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure netif_device_present [2024-11-09 05:34:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_device_present [2024-11-09 05:34:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2024-11-09 05:34:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2024-11-09 05:34:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2024-11-09 05:34:03,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2024-11-09 05:34:03,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-09 05:34:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-09 05:34:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-09 05:34:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-09 05:34:03,460 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_timer_1 [2024-11-09 05:34:03,460 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_timer_1 [2024-11-09 05:34:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2024-11-09 05:34:03,462 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2024-11-09 05:34:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-09 05:34:03,462 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2024-11-09 05:34:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2024-11-09 05:34:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2024-11-09 05:34:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2024-11-09 05:34:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_dev_dbg [2024-11-09 05:34:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_dev_dbg [2024-11-09 05:34:03,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-09 05:34:03,463 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-09 05:34:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2024-11-09 05:34:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2024-11-09 05:34:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-09 05:34:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-09 05:34:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2024-11-09 05:34:03,464 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2024-11-09 05:34:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 05:34:03,464 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_reset [2024-11-09 05:34:03,465 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_reset [2024-11-09 05:34:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 05:34:03,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_timer_1 [2024-11-09 05:34:03,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_timer_1 [2024-11-09 05:34:03,466 INFO L130 BoogieDeclarations]: Found specification of procedure pcmcia_dev_present [2024-11-09 05:34:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure pcmcia_dev_present [2024-11-09 05:34:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_netdev_dbg [2024-11-09 05:34:03,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_netdev_dbg [2024-11-09 05:34:03,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 05:34:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-09 05:34:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2024-11-09 05:34:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2024-11-09 05:34:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure el3_rx [2024-11-09 05:34:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_rx [2024-11-09 05:34:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure eth_mac_addr [2024-11-09 05:34:03,468 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_mac_addr [2024-11-09 05:34:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-09 05:34:03,468 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-09 05:34:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-09 05:34:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2024-11-09 05:34:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2024-11-09 05:34:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_set_xcvr [2024-11-09 05:34:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_set_xcvr [2024-11-09 05:34:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_release [2024-11-09 05:34:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_release [2024-11-09 05:34:03,469 INFO L130 BoogieDeclarations]: Found specification of procedure set_multicast_list [2024-11-09 05:34:03,469 INFO L138 BoogieDeclarations]: Found implementation of procedure set_multicast_list [2024-11-09 05:34:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-09 05:34:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-09 05:34:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2024-11-09 05:34:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2024-11-09 05:34:03,470 INFO L130 BoogieDeclarations]: Found specification of procedure el3_get_stats [2024-11-09 05:34:03,470 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_get_stats [2024-11-09 05:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-09 05:34:03,473 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-09 05:34:03,473 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_detach [2024-11-09 05:34:03,474 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_detach [2024-11-09 05:34:03,474 INFO L130 BoogieDeclarations]: Found specification of procedure tc589_wait_for_completion [2024-11-09 05:34:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure tc589_wait_for_completion [2024-11-09 05:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 05:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2024-11-09 05:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure update_stats [2024-11-09 05:34:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure update_stats [2024-11-09 05:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure dev_err [2024-11-09 05:34:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_err [2024-11-09 05:34:03,475 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_warn [2024-11-09 05:34:03,475 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_warn [2024-11-09 05:34:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2024-11-09 05:34:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2024-11-09 05:34:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-09 05:34:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-09 05:34:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-09 05:34:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-09 05:34:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2024-11-09 05:34:03,476 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2024-11-09 05:34:03,476 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-09 05:34:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-09 05:34:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-09 05:34:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-09 05:34:03,477 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-09 05:34:03,477 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-09 05:34:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_info [2024-11-09 05:34:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_info [2024-11-09 05:34:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure pop_tx_status [2024-11-09 05:34:03,478 INFO L138 BoogieDeclarations]: Found implementation of procedure pop_tx_status [2024-11-09 05:34:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-09 05:34:03,478 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-11-09 05:34:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-11-09 05:34:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 05:34:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 05:34:03,479 INFO L130 BoogieDeclarations]: Found specification of procedure el3_tx_timeout [2024-11-09 05:34:03,479 INFO L138 BoogieDeclarations]: Found implementation of procedure el3_tx_timeout [2024-11-09 05:34:04,208 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 05:34:04,214 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 05:34:05,248 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-09 05:34:15,327 INFO L? ?]: Removed 965 outVars from TransFormulas that were not future-live. [2024-11-09 05:34:15,328 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 05:34:16,806 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 05:34:16,807 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 05:34:16,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:34:16 BoogieIcfgContainer [2024-11-09 05:34:16,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 05:34:16,812 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 05:34:16,812 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 05:34:16,818 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 05:34:16,818 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 05:34:00" (1/3) ... [2024-11-09 05:34:16,819 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fadf709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:34:16, skipping insertion in model container [2024-11-09 05:34:16,819 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 05:34:02" (2/3) ... [2024-11-09 05:34:16,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fadf709 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 05:34:16, skipping insertion in model container [2024-11-09 05:34:16,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 05:34:16" (3/3) ... [2024-11-09 05:34:16,824 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-43_2a-drivers--net--ethernet--3com--3c589_cs.ko-entry_point.cil.out.i [2024-11-09 05:34:16,849 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 05:34:16,850 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 05:34:16,991 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 05:34:17,002 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;@69eb1d9d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 05:34:17,002 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 05:34:17,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 784 states, 464 states have (on average 1.3706896551724137) internal successors, (636), 502 states have internal predecessors, (636), 269 states have call successors, (269), 50 states have call predecessors, (269), 49 states have return successors, (263), 254 states have call predecessors, (263), 263 states have call successors, (263) [2024-11-09 05:34:17,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-09 05:34:17,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:17,068 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:17,069 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:34:17,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:17,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1902715568, now seen corresponding path program 1 times [2024-11-09 05:34:17,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:17,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892354088] [2024-11-09 05:34:17,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:17,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:34:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:34:30,908 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 05:34:30,911 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:34:30,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892354088] [2024-11-09 05:34:30,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892354088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:34:30,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:34:30,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:34:30,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670657847] [2024-11-09 05:34:30,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:34:30,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:34:30,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:34:30,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:34:30,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:34:30,964 INFO L87 Difference]: Start difference. First operand has 784 states, 464 states have (on average 1.3706896551724137) internal successors, (636), 502 states have internal predecessors, (636), 269 states have call successors, (269), 50 states have call predecessors, (269), 49 states have return successors, (263), 254 states have call predecessors, (263), 263 states have call successors, (263) Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:34:33,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:35,393 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.30s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:38,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:43,218 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:45,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:48,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:50,724 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:52,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:34:56,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:34:56,794 INFO L93 Difference]: Finished difference Result 3093 states and 4633 transitions. [2024-11-09 05:34:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:34:56,797 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 150 [2024-11-09 05:34:56,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:34:56,848 INFO L225 Difference]: With dead ends: 3093 [2024-11-09 05:34:56,848 INFO L226 Difference]: Without dead ends: 2285 [2024-11-09 05:34:56,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:34:56,869 INFO L432 NwaCegarLoop]: 1056 mSDtfsCounter, 2291 mSDsluCounter, 2162 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 6 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2291 SdHoareTripleChecker+Valid, 3218 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2024-11-09 05:34:56,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2291 Valid, 3218 Invalid, 980 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 966 Invalid, 8 Unknown, 0 Unchecked, 25.4s Time] [2024-11-09 05:34:56,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2285 states. [2024-11-09 05:34:57,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2285 to 2273. [2024-11-09 05:34:57,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2273 states, 1359 states have (on average 1.3495217071376011) internal successors, (1834), 1443 states have internal predecessors, (1834), 771 states have call successors, (771), 143 states have call predecessors, (771), 142 states have return successors, (770), 745 states have call predecessors, (770), 770 states have call successors, (770) [2024-11-09 05:34:57,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2273 states to 2273 states and 3375 transitions. [2024-11-09 05:34:57,192 INFO L78 Accepts]: Start accepts. Automaton has 2273 states and 3375 transitions. Word has length 150 [2024-11-09 05:34:57,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:34:57,194 INFO L471 AbstractCegarLoop]: Abstraction has 2273 states and 3375 transitions. [2024-11-09 05:34:57,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:34:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 2273 states and 3375 transitions. [2024-11-09 05:34:57,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-09 05:34:57,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:34:57,213 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:34:57,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 05:34:57,216 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:34:57,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:34:57,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1957375305, now seen corresponding path program 1 times [2024-11-09 05:34:57,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:34:57,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536151243] [2024-11-09 05:34:57,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:34:57,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:08,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:09,320 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 05:35:09,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:09,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536151243] [2024-11-09 05:35:09,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536151243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:09,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:35:09,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:35:09,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920689425] [2024-11-09 05:35:09,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:09,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:35:09,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:09,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:35:09,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:35:09,328 INFO L87 Difference]: Start difference. First operand 2273 states and 3375 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:35:11,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:13,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:16,692 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:23,186 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:25,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:27,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:29,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:31,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:37,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:35:37,496 INFO L93 Difference]: Finished difference Result 9048 states and 13434 transitions. [2024-11-09 05:35:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:35:37,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 151 [2024-11-09 05:35:37,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:35:37,562 INFO L225 Difference]: With dead ends: 9048 [2024-11-09 05:35:37,562 INFO L226 Difference]: Without dead ends: 6787 [2024-11-09 05:35:37,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:35:37,582 INFO L432 NwaCegarLoop]: 1025 mSDtfsCounter, 2840 mSDsluCounter, 1494 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 514 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2840 SdHoareTripleChecker+Valid, 2519 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 514 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:35:37,583 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2840 Valid, 2519 Invalid, 1414 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [514 Valid, 892 Invalid, 8 Unknown, 0 Unchecked, 27.6s Time] [2024-11-09 05:35:37,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6787 states. [2024-11-09 05:35:38,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6787 to 6775. [2024-11-09 05:35:38,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6775 states, 4059 states have (on average 1.3486080315348608) internal successors, (5474), 4301 states have internal predecessors, (5474), 2291 states have call successors, (2291), 425 states have call predecessors, (2291), 424 states have return successors, (2290), 2221 states have call predecessors, (2290), 2290 states have call successors, (2290) [2024-11-09 05:35:38,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6775 states to 6775 states and 10055 transitions. [2024-11-09 05:35:38,144 INFO L78 Accepts]: Start accepts. Automaton has 6775 states and 10055 transitions. Word has length 151 [2024-11-09 05:35:38,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:35:38,145 INFO L471 AbstractCegarLoop]: Abstraction has 6775 states and 10055 transitions. [2024-11-09 05:35:38,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:35:38,146 INFO L276 IsEmpty]: Start isEmpty. Operand 6775 states and 10055 transitions. [2024-11-09 05:35:38,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 05:35:38,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:35:38,152 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:35:38,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 05:35:38,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:35:38,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:35:38,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1655027761, now seen corresponding path program 1 times [2024-11-09 05:35:38,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:35:38,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46250824] [2024-11-09 05:35:38,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:35:38,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:35:48,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:35:49,530 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 05:35:49,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:35:49,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46250824] [2024-11-09 05:35:49,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46250824] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:35:49,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:35:49,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:35:49,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449207393] [2024-11-09 05:35:49,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:35:49,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:35:49,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:35:49,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:35:49,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:35:49,537 INFO L87 Difference]: Start difference. First operand 6775 states and 10055 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:35:51,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:53,917 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:35:56,586 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:01,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:03,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:05,857 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:07,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:09,880 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:16,048 INFO L93 Difference]: Finished difference Result 27044 states and 40130 transitions. [2024-11-09 05:36:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:36:16,049 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), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 149 [2024-11-09 05:36:16,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:16,205 INFO L225 Difference]: With dead ends: 27044 [2024-11-09 05:36:16,205 INFO L226 Difference]: Without dead ends: 20281 [2024-11-09 05:36:16,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:36:16,249 INFO L432 NwaCegarLoop]: 1038 mSDtfsCounter, 2248 mSDsluCounter, 2113 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 6 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2248 SdHoareTripleChecker+Valid, 3151 SdHoareTripleChecker+Invalid, 967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.6s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:16,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2248 Valid, 3151 Invalid, 967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 953 Invalid, 8 Unknown, 0 Unchecked, 25.6s Time] [2024-11-09 05:36:16,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20281 states. [2024-11-09 05:36:17,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20281 to 20269. [2024-11-09 05:36:17,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20269 states, 12159 states have (on average 1.3471502590673574) internal successors, (16380), 12863 states have internal predecessors, (16380), 6839 states have call successors, (6839), 1271 states have call predecessors, (6839), 1270 states have return successors, (6838), 6649 states have call predecessors, (6838), 6838 states have call successors, (6838) [2024-11-09 05:36:17,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20269 states to 20269 states and 30057 transitions. [2024-11-09 05:36:17,923 INFO L78 Accepts]: Start accepts. Automaton has 20269 states and 30057 transitions. Word has length 149 [2024-11-09 05:36:17,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:36:17,924 INFO L471 AbstractCegarLoop]: Abstraction has 20269 states and 30057 transitions. [2024-11-09 05:36:17,924 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), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:36:17,925 INFO L276 IsEmpty]: Start isEmpty. Operand 20269 states and 30057 transitions. [2024-11-09 05:36:17,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-09 05:36:17,929 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:36:17,929 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:36:17,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 05:36:17,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:36:17,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:36:17,934 INFO L85 PathProgramCache]: Analyzing trace with hash -452874840, now seen corresponding path program 1 times [2024-11-09 05:36:17,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:36:17,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944966837] [2024-11-09 05:36:17,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:36:17,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:36:28,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:36:29,296 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-09 05:36:29,297 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:36:29,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944966837] [2024-11-09 05:36:29,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944966837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:36:29,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:36:29,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 05:36:29,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35123507] [2024-11-09 05:36:29,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:36:29,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 05:36:29,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:36:29,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 05:36:29,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:36:29,301 INFO L87 Difference]: Start difference. First operand 20269 states and 30057 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:36:31,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:33,622 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:36,259 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:40,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:42,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:44,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:47,081 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:49,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:36:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:36:56,721 INFO L93 Difference]: Finished difference Result 77592 states and 114866 transitions. [2024-11-09 05:36:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 05:36:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 152 [2024-11-09 05:36:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:36:57,075 INFO L225 Difference]: With dead ends: 77592 [2024-11-09 05:36:57,075 INFO L226 Difference]: Without dead ends: 57335 [2024-11-09 05:36:57,184 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 05:36:57,187 INFO L432 NwaCegarLoop]: 1025 mSDtfsCounter, 2245 mSDsluCounter, 2486 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 6 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2245 SdHoareTripleChecker+Valid, 3511 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:36:57,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2245 Valid, 3511 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1012 Invalid, 8 Unknown, 0 Unchecked, 25.5s Time] [2024-11-09 05:36:57,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57335 states. [2024-11-09 05:37:01,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57335 to 57269. [2024-11-09 05:37:01,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57269 states, 34389 states have (on average 1.345721015440984) internal successors, (46278), 36203 states have internal predecessors, (46278), 19183 states have call successors, (19183), 3697 states have call predecessors, (19183), 3696 states have return successors, (19182), 18701 states have call predecessors, (19182), 19182 states have call successors, (19182) [2024-11-09 05:37:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57269 states to 57269 states and 84643 transitions. [2024-11-09 05:37:02,275 INFO L78 Accepts]: Start accepts. Automaton has 57269 states and 84643 transitions. Word has length 152 [2024-11-09 05:37:02,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:02,276 INFO L471 AbstractCegarLoop]: Abstraction has 57269 states and 84643 transitions. [2024-11-09 05:37:02,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2024-11-09 05:37:02,277 INFO L276 IsEmpty]: Start isEmpty. Operand 57269 states and 84643 transitions. [2024-11-09 05:37:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2024-11-09 05:37:02,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:02,544 INFO L215 NwaCegarLoop]: trace histogram [20, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2024-11-09 05:37:02,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 05:37:02,544 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:02,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:02,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1912861175, now seen corresponding path program 1 times [2024-11-09 05:37:02,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:02,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413242459] [2024-11-09 05:37:02,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:02,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:12,218 INFO L134 CoverageAnalysis]: Checked inductivity of 536 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 534 trivial. 0 not checked. [2024-11-09 05:37:12,218 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:12,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413242459] [2024-11-09 05:37:12,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413242459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:12,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:37:12,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:37:12,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849033035] [2024-11-09 05:37:12,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:12,221 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:37:12,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:12,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:37:12,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:37:12,223 INFO L87 Difference]: Start difference. First operand 57269 states and 84643 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-09 05:37:14,318 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:16,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:19,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:21,516 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:27,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 05:37:27,315 INFO L93 Difference]: Finished difference Result 150983 states and 222102 transitions. [2024-11-09 05:37:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 05:37:27,316 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 282 [2024-11-09 05:37:27,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 05:37:27,852 INFO L225 Difference]: With dead ends: 150983 [2024-11-09 05:37:27,852 INFO L226 Difference]: Without dead ends: 93726 [2024-11-09 05:37:28,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:37:28,057 INFO L432 NwaCegarLoop]: 1391 mSDtfsCounter, 764 mSDsluCounter, 932 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 5 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 764 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2024-11-09 05:37:28,058 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [764 Valid, 2323 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 363 Invalid, 4 Unknown, 0 Unchecked, 11.5s Time] [2024-11-09 05:37:28,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93726 states. [2024-11-09 05:37:34,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93726 to 93399. [2024-11-09 05:37:34,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93399 states, 56244 states have (on average 1.3436633240879028) internal successors, (75573), 59692 states have internal predecessors, (75573), 30749 states have call successors, (30749), 6487 states have call predecessors, (30749), 6405 states have return successors, (30748), 29543 states have call predecessors, (30748), 30748 states have call successors, (30748) [2024-11-09 05:37:35,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93399 states to 93399 states and 137070 transitions. [2024-11-09 05:37:35,192 INFO L78 Accepts]: Start accepts. Automaton has 93399 states and 137070 transitions. Word has length 282 [2024-11-09 05:37:35,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 05:37:35,193 INFO L471 AbstractCegarLoop]: Abstraction has 93399 states and 137070 transitions. [2024-11-09 05:37:35,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (56), 2 states have call predecessors, (56), 1 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2024-11-09 05:37:35,194 INFO L276 IsEmpty]: Start isEmpty. Operand 93399 states and 137070 transitions. [2024-11-09 05:37:35,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-09 05:37:35,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 05:37:35,334 INFO L215 NwaCegarLoop]: trace histogram [22, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 05:37:35,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 05:37:35,335 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 05:37:35,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 05:37:35,336 INFO L85 PathProgramCache]: Analyzing trace with hash 89465838, now seen corresponding path program 1 times [2024-11-09 05:37:35,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-09 05:37:35,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146788985] [2024-11-09 05:37:35,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 05:37:35,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 05:37:45,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 05:37:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 702 trivial. 0 not checked. [2024-11-09 05:37:46,171 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-09 05:37:46,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146788985] [2024-11-09 05:37:46,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146788985] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 05:37:46,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 05:37:46,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 05:37:46,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384422960] [2024-11-09 05:37:46,172 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 05:37:46,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 05:37:46,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-09 05:37:46,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 05:37:46,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 05:37:46,176 INFO L87 Difference]: Start difference. First operand 93399 states and 137070 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 2 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (62), 2 states have call predecessors, (62), 2 states have call successors, (62) [2024-11-09 05:37:48,295 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 05:37:50,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-09 05:37:52,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []