./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E --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 ce7cfab1c5ecb337e40cd28b6f05fbb1012e52b341b5f9ae1eaf5789474a2652 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-14 05:36:15,597 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-14 05:36:15,696 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/config/svcomp-Reach-64bit-Taipan_Default.epf [2024-11-14 05:36:15,702 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-14 05:36:15,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-14 05:36:15,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-14 05:36:15,730 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-14 05:36:15,731 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-14 05:36:15,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-14 05:36:15,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-14 05:36:15,732 INFO L153 SettingsManager]: * User list type=DISABLED [2024-11-14 05:36:15,732 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2024-11-14 05:36:15,733 INFO L153 SettingsManager]: * Explicit value domain=true [2024-11-14 05:36:15,733 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2024-11-14 05:36:15,733 INFO L153 SettingsManager]: * Octagon Domain=false [2024-11-14 05:36:15,733 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2024-11-14 05:36:15,735 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2024-11-14 05:36:15,735 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2024-11-14 05:36:15,735 INFO L153 SettingsManager]: * Interval Domain=false [2024-11-14 05:36:15,735 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2024-11-14 05:36:15,735 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2024-11-14 05:36:15,735 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2024-11-14 05:36:15,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-14 05:36:15,736 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-14 05:36:15,737 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:15,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-14 05:36:15,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-14 05:36:15,739 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2024-11-14 05:36:15,739 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-14 05:36:15,739 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-14 05:36:15,739 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2024-11-14 05:36:15,739 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-14 05:36:15,740 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E 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 -> ce7cfab1c5ecb337e40cd28b6f05fbb1012e52b341b5f9ae1eaf5789474a2652 [2024-11-14 05:36:16,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-14 05:36:16,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-14 05:36:16,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-14 05:36:16,123 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-14 05:36:16,124 INFO L274 PluginConnector]: CDTParser initialized [2024-11-14 05:36:16,126 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i Unable to find full path for "g++" [2024-11-14 05:36:18,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-14 05:36:18,918 INFO L384 CDTParser]: Found 1 translation units. [2024-11-14 05:36:18,918 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2024-11-14 05:36:18,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/data/d0ab935ba/ce1db40541014432912ee574ff85f26a/FLAG2246bd358 [2024-11-14 05:36:19,011 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/data/d0ab935ba/ce1db40541014432912ee574ff85f26a [2024-11-14 05:36:19,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-14 05:36:19,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-14 05:36:19,020 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:19,020 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-14 05:36:19,024 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-14 05:36:19,026 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:19" (1/1) ... [2024-11-14 05:36:19,028 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b7a733 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:19, skipping insertion in model container [2024-11-14 05:36:19,029 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:36:19" (1/1) ... [2024-11-14 05:36:19,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-14 05:36:21,665 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_9fd79112-7405-4146-8d76-b9d3579bb573/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2024-11-14 05:36:21,669 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_9fd79112-7405-4146-8d76-b9d3579bb573/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2024-11-14 05:36:21,700 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:21,747 INFO L200 MainTranslator]: Completed pre-run [2024-11-14 05:36:21,901 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"); [5217] [2024-11-14 05:36:21,904 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)); [5224] [2024-11-14 05:36:21,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("1:\tud2\n.pushsection __bug_table,\"a\"\n2:\t.long 1b - 2b, %c0 - 2b\n\t.word %c1, 0\n\t.org 2b+%c2\n.popsection": : "i" ((char *)"/home/debian/klever-work/native-scheduler-work-dir/scheduler/jobs/dfbfd2da522a1f5f4786ee57b863db44/klever-core-work-dir/de2fed6/linux-alloc-spinlock/lkbce/arch/x86/include/asm/paravirt.h"), "i" (804), "i" (12UL)); [5259-5260] [2024-11-14 05:36:21,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (44UL), [paravirt_opptr] "i" (& pv_irq_ops.save_fl.func), [paravirt_clobber] "i" (1): "memory", "cc"); [5265-5267] [2024-11-14 05:36:21,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5315] [2024-11-14 05:36:21,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5318] [2024-11-14 05:36:21,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5321] [2024-11-14 05:36:21,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5324] [2024-11-14 05:36:21,916 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5393] [2024-11-14 05:36:21,918 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5439] [2024-11-14 05:36:21,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5447] [2024-11-14 05:36:21,921 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5454] [2024-11-14 05:36:21,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5462] [2024-11-14 05:36:21,922 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5469] [2024-11-14 05:36:21,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5477] [2024-11-14 05:36:21,923 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5484] [2024-11-14 05:36:21,924 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5491] [2024-11-14 05:36:21,935 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)); [5560-5561] [2024-11-14 05:36:21,938 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)); [5594-5595] [2024-11-14 05:36:22,313 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_9fd79112-7405-4146-8d76-b9d3579bb573/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2024-11-14 05:36:22,314 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_9fd79112-7405-4146-8d76-b9d3579bb573/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2024-11-14 05:36:22,322 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-14 05:36:22,554 INFO L204 MainTranslator]: Completed translation [2024-11-14 05:36:22,554 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22 WrapperNode [2024-11-14 05:36:22,554 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-14 05:36:22,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:22,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-14 05:36:22,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-14 05:36:22,565 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:22,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:22,934 INFO L138 Inliner]: procedures = 389, calls = 1905, calls flagged for inlining = 178, calls inlined = 158, statements flattened = 5143 [2024-11-14 05:36:22,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-14 05:36:22,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-14 05:36:22,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-14 05:36:22,938 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-14 05:36:22,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:22,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:22,983 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:22,983 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:23,143 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:23,179 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:23,219 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:23,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:23,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-14 05:36:23,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-14 05:36:23,329 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-14 05:36:23,329 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-14 05:36:23,330 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (1/1) ... [2024-11-14 05:36:23,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-11-14 05:36:23,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:36:23,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-11-14 05:36:23,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-11-14 05:36:23,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2024-11-14 05:36:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2024-11-14 05:36:23,400 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2024-11-14 05:36:23,400 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2024-11-14 05:36:23,401 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2024-11-14 05:36:23,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2024-11-14 05:36:23,402 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_103 [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_103 [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2024-11-14 05:36:23,403 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2024-11-14 05:36:23,403 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2024-11-14 05:36:23,404 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2024-11-14 05:36:23,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2024-11-14 05:36:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2024-11-14 05:36:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2024-11-14 05:36:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2024-11-14 05:36:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2024-11-14 05:36:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2024-11-14 05:36:23,405 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2024-11-14 05:36:23,405 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2024-11-14 05:36:23,409 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2024-11-14 05:36:23,409 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2024-11-14 05:36:23,409 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2024-11-14 05:36:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-14 05:36:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2024-11-14 05:36:23,410 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2024-11-14 05:36:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2024-11-14 05:36:23,410 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2024-11-14 05:36:23,410 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2024-11-14 05:36:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2024-11-14 05:36:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-14 05:36:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2024-11-14 05:36:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2024-11-14 05:36:23,411 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2024-11-14 05:36:23,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2024-11-14 05:36:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2024-11-14 05:36:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 05:36:23,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-14 05:36:23,412 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2024-11-14 05:36:23,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2024-11-14 05:36:23,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2024-11-14 05:36:23,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2024-11-14 05:36:23,413 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2024-11-14 05:36:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2024-11-14 05:36:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2024-11-14 05:36:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2024-11-14 05:36:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2024-11-14 05:36:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2024-11-14 05:36:23,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-14 05:36:23,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2024-11-14 05:36:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2024-11-14 05:36:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2024-11-14 05:36:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2024-11-14 05:36:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2024-11-14 05:36:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2024-11-14 05:36:23,415 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-14 05:36:23,415 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-14 05:36:23,417 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 05:36:23,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2024-11-14 05:36:23,417 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-14 05:36:23,417 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-14 05:36:23,417 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2024-11-14 05:36:23,417 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2024-11-14 05:36:23,418 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2024-11-14 05:36:23,418 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2024-11-14 05:36:23,419 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2024-11-14 05:36:23,419 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2024-11-14 05:36:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2024-11-14 05:36:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2024-11-14 05:36:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2024-11-14 05:36:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-14 05:36:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2024-11-14 05:36:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2024-11-14 05:36:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2024-11-14 05:36:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2024-11-14 05:36:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2024-11-14 05:36:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2024-11-14 05:36:23,420 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2024-11-14 05:36:23,420 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2024-11-14 05:36:24,323 INFO L238 CfgBuilder]: Building ICFG [2024-11-14 05:36:24,327 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-14 05:36:25,099 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2024-11-14 05:36:32,695 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2024-11-14 05:36:32,724 WARN L781 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2024-11-14 05:36:35,070 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~bitwise790#1 := ~tmp___4~7#1; [2024-11-14 05:36:35,070 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616); [2024-11-14 05:36:35,070 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-2: havoc #t~bitwise790#1;assume #t~bitwise790#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616 && #t~bitwise790#1 % 18446744073709551616 <= 2096896; [2024-11-14 05:36:35,070 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-3: assume 0 == #t~bitwise790#1 % 18446744073709551616;havoc #t~bitwise790#1; [2024-11-14 05:36:35,071 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-3: assume !(0 == #t~bitwise790#1 % 18446744073709551616);havoc #t~bitwise790#1; [2024-11-14 05:36:35,071 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-5: assume (if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0; [2024-11-14 05:36:35,071 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-5: assume !((if (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 <= 9223372036854775807 then (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 else (~jiffies~0 - ~time~2#1) % 18446744073709551616 % 18446744073709551616 - 18446744073709551616) < 0); [2024-11-14 05:36:35,071 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566-1: assume -9223372036854775808 <= #t~ret791#1 && #t~ret791#1 <= 9223372036854775807;havoc #t~ret791#1; [2024-11-14 05:36:35,072 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566: SUMMARY for call #t~ret791#1 := schedule_timeout_interruptible(1); srcloc: null [2024-11-14 05:36:35,072 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2024-11-14 05:36:35,072 INFO L735 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~bitwise790#1 := 0; [2024-11-14 05:36:36,200 INFO L? ?]: Removed 2071 outVars from TransFormulas that were not future-live. [2024-11-14 05:36:36,200 INFO L287 CfgBuilder]: Performing block encoding [2024-11-14 05:36:38,841 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-14 05:36:38,844 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-14 05:36:38,845 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:38 BoogieIcfgContainer [2024-11-14 05:36:38,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-14 05:36:38,847 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-14 05:36:38,851 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-14 05:36:38,855 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-14 05:36:38,856 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:36:19" (1/3) ... [2024-11-14 05:36:38,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c74d599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:38, skipping insertion in model container [2024-11-14 05:36:38,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:36:22" (2/3) ... [2024-11-14 05:36:38,857 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c74d599 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:36:38, skipping insertion in model container [2024-11-14 05:36:38,857 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:36:38" (3/3) ... [2024-11-14 05:36:38,858 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2024-11-14 05:36:38,880 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-14 05:36:38,883 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i that has 82 procedures, 1568 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-14 05:36:39,022 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-14 05:36:39,042 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;@600e3f98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-14 05:36:39,042 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-14 05:36:39,055 INFO L276 IsEmpty]: Start isEmpty. Operand has 1566 states, 874 states have (on average 1.294050343249428) internal successors, (1131), 912 states have internal predecessors, (1131), 612 states have call successors, (612), 81 states have call predecessors, (612), 80 states have return successors, (607), 594 states have call predecessors, (607), 607 states have call successors, (607) [2024-11-14 05:36:39,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-14 05:36:39,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:39,089 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 4, 4, 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] [2024-11-14 05:36:39,089 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:39,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1179975189, now seen corresponding path program 1 times [2024-11-14 05:36:39,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:39,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187427945] [2024-11-14 05:36:39,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:36:45,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:36:46,899 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-14 05:36:46,900 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:36:46,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187427945] [2024-11-14 05:36:46,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187427945] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:36:46,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:36:46,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:36:46,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051887648] [2024-11-14 05:36:46,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:36:46,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:36:46,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:36:46,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:36:46,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:36:46,946 INFO L87 Difference]: Start difference. First operand has 1566 states, 874 states have (on average 1.294050343249428) internal successors, (1131), 912 states have internal predecessors, (1131), 612 states have call successors, (612), 81 states have call predecessors, (612), 80 states have return successors, (607), 594 states have call predecessors, (607), 607 states have call successors, (607) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 05:36:49,044 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 [] [2024-11-14 05:36:51,243 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 [] [2024-11-14 05:36:56,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:36:56,967 INFO L93 Difference]: Finished difference Result 4488 states and 6803 transitions. [2024-11-14 05:36:56,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:36:56,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 105 [2024-11-14 05:36:56,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:36:57,037 INFO L225 Difference]: With dead ends: 4488 [2024-11-14 05:36:57,038 INFO L226 Difference]: Without dead ends: 2853 [2024-11-14 05:36:57,064 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 [2024-11-14 05:36:57,068 INFO L432 NwaCegarLoop]: 2437 mSDtfsCounter, 2099 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 579 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 4463 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 579 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:36:57,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 4463 Invalid, 587 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 579 Invalid, 2 Unknown, 0 Unchecked, 9.6s Time] [2024-11-14 05:36:57,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2853 states. [2024-11-14 05:36:57,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2853 to 2849. [2024-11-14 05:36:57,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2849 states, 1586 states have (on average 1.2912988650693569) internal successors, (2048), 1655 states have internal predecessors, (2048), 1114 states have call successors, (1114), 150 states have call predecessors, (1114), 148 states have return successors, (1121), 1083 states have call predecessors, (1121), 1114 states have call successors, (1121) [2024-11-14 05:36:57,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2849 states to 2849 states and 4283 transitions. [2024-11-14 05:36:57,638 INFO L78 Accepts]: Start accepts. Automaton has 2849 states and 4283 transitions. Word has length 105 [2024-11-14 05:36:57,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:36:57,639 INFO L471 AbstractCegarLoop]: Abstraction has 2849 states and 4283 transitions. [2024-11-14 05:36:57,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-14 05:36:57,639 INFO L276 IsEmpty]: Start isEmpty. Operand 2849 states and 4283 transitions. [2024-11-14 05:36:57,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2024-11-14 05:36:57,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:36:57,664 INFO L215 NwaCegarLoop]: trace histogram [7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:36:57,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-14 05:36:57,665 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:36:57,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:36:57,666 INFO L85 PathProgramCache]: Analyzing trace with hash 1991658184, now seen corresponding path program 1 times [2024-11-14 05:36:57,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:36:57,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [541544379] [2024-11-14 05:36:57,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:36:57,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:37:03,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:04,028 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-14 05:37:04,028 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:37:04,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [541544379] [2024-11-14 05:37:04,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [541544379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:37:04,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:37:04,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:37:04,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504613014] [2024-11-14 05:37:04,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:37:04,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:37:04,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:37:04,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:37:04,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:04,034 INFO L87 Difference]: Start difference. First operand 2849 states and 4283 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 05:37:06,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:08,310 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 [] [2024-11-14 05:37:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:37:14,766 INFO L93 Difference]: Finished difference Result 7325 states and 10978 transitions. [2024-11-14 05:37:14,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:37:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 158 [2024-11-14 05:37:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:37:14,817 INFO L225 Difference]: With dead ends: 7325 [2024-11-14 05:37:14,817 INFO L226 Difference]: Without dead ends: 4485 [2024-11-14 05:37:14,840 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 [2024-11-14 05:37:14,841 INFO L432 NwaCegarLoop]: 2102 mSDtfsCounter, 1300 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 4074 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:37:14,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 4074 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 601 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-14 05:37:14,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4485 states. [2024-11-14 05:37:15,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4485 to 4481. [2024-11-14 05:37:15,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4481 states, 2522 states have (on average 1.287866772402855) internal successors, (3248), 2631 states have internal predecessors, (3248), 1710 states have call successors, (1710), 250 states have call predecessors, (1710), 248 states have return successors, (1717), 1663 states have call predecessors, (1717), 1710 states have call successors, (1717) [2024-11-14 05:37:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4481 states to 4481 states and 6675 transitions. [2024-11-14 05:37:15,306 INFO L78 Accepts]: Start accepts. Automaton has 4481 states and 6675 transitions. Word has length 158 [2024-11-14 05:37:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:37:15,309 INFO L471 AbstractCegarLoop]: Abstraction has 4481 states and 6675 transitions. [2024-11-14 05:37:15,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2024-11-14 05:37:15,309 INFO L276 IsEmpty]: Start isEmpty. Operand 4481 states and 6675 transitions. [2024-11-14 05:37:15,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2024-11-14 05:37:15,332 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:37:15,333 INFO L215 NwaCegarLoop]: trace histogram [10, 6, 5, 4, 4, 4, 4, 4, 4, 4, 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] [2024-11-14 05:37:15,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-14 05:37:15,333 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:37:15,333 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:37:15,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1205664622, now seen corresponding path program 1 times [2024-11-14 05:37:15,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:37:15,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463564419] [2024-11-14 05:37:15,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:37:15,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:37:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:21,000 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-14 05:37:21,002 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:37:21,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463564419] [2024-11-14 05:37:21,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463564419] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:37:21,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:37:21,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:37:21,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900622433] [2024-11-14 05:37:21,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:37:21,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:37:21,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:37:21,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:37:21,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:21,008 INFO L87 Difference]: Start difference. First operand 4481 states and 6675 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-14 05:37:23,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:25,268 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 [] [2024-11-14 05:37:31,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:37:31,424 INFO L93 Difference]: Finished difference Result 11923 states and 17707 transitions. [2024-11-14 05:37:31,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:37:31,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 212 [2024-11-14 05:37:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:37:31,488 INFO L225 Difference]: With dead ends: 11923 [2024-11-14 05:37:31,489 INFO L226 Difference]: Without dead ends: 7451 [2024-11-14 05:37:31,520 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 [2024-11-14 05:37:31,520 INFO L432 NwaCegarLoop]: 2014 mSDtfsCounter, 2061 mSDsluCounter, 1958 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 7 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2061 SdHoareTripleChecker+Valid, 3972 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.0s IncrementalHoareTripleChecker+Time [2024-11-14 05:37:31,521 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2061 Valid, 3972 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 563 Invalid, 2 Unknown, 0 Unchecked, 10.0s Time] [2024-11-14 05:37:31,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7451 states. [2024-11-14 05:37:32,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7451 to 7446. [2024-11-14 05:37:32,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7446 states, 4206 states have (on average 1.280076081787922) internal successors, (5384), 4386 states have internal predecessors, (5384), 2811 states have call successors, (2811), 433 states have call predecessors, (2811), 428 states have return successors, (2826), 2731 states have call predecessors, (2826), 2811 states have call successors, (2826) [2024-11-14 05:37:32,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7446 states to 7446 states and 11021 transitions. [2024-11-14 05:37:32,157 INFO L78 Accepts]: Start accepts. Automaton has 7446 states and 11021 transitions. Word has length 212 [2024-11-14 05:37:32,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:37:32,158 INFO L471 AbstractCegarLoop]: Abstraction has 7446 states and 11021 transitions. [2024-11-14 05:37:32,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 3 states have call successors, (44), 2 states have call predecessors, (44), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-14 05:37:32,158 INFO L276 IsEmpty]: Start isEmpty. Operand 7446 states and 11021 transitions. [2024-11-14 05:37:32,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-14 05:37:32,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:37:32,171 INFO L215 NwaCegarLoop]: trace histogram [10, 7, 7, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-14 05:37:32,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-14 05:37:32,171 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:37:32,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:37:32,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1085685792, now seen corresponding path program 1 times [2024-11-14 05:37:32,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:37:32,172 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892815746] [2024-11-14 05:37:32,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:37:32,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:37:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:37,236 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2024-11-14 05:37:37,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:37:37,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892815746] [2024-11-14 05:37:37,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892815746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:37:37,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:37:37,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:37:37,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683223999] [2024-11-14 05:37:37,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:37:37,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:37:37,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:37:37,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:37:37,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:37,241 INFO L87 Difference]: Start difference. First operand 7446 states and 11021 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 05:37:39,301 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:41,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:37:48,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:37:48,305 INFO L93 Difference]: Finished difference Result 16943 states and 25026 transitions. [2024-11-14 05:37:48,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:37:48,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 204 [2024-11-14 05:37:48,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:37:48,389 INFO L225 Difference]: With dead ends: 16943 [2024-11-14 05:37:48,389 INFO L226 Difference]: Without dead ends: 9506 [2024-11-14 05:37:48,435 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 [2024-11-14 05:37:48,436 INFO L432 NwaCegarLoop]: 3137 mSDtfsCounter, 1308 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 15 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1308 SdHoareTripleChecker+Valid, 5101 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:37:48,436 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1308 Valid, 5101 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 746 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2024-11-14 05:37:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9506 states. [2024-11-14 05:37:49,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9506 to 9500. [2024-11-14 05:37:49,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9500 states, 5408 states have (on average 1.2762573964497042) internal successors, (6902), 5637 states have internal predecessors, (6902), 3518 states have call successors, (3518), 578 states have call predecessors, (3518), 573 states have return successors, (3533), 3420 states have call predecessors, (3533), 3518 states have call successors, (3533) [2024-11-14 05:37:49,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9500 states to 9500 states and 13953 transitions. [2024-11-14 05:37:49,255 INFO L78 Accepts]: Start accepts. Automaton has 9500 states and 13953 transitions. Word has length 204 [2024-11-14 05:37:49,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:37:49,256 INFO L471 AbstractCegarLoop]: Abstraction has 9500 states and 13953 transitions. [2024-11-14 05:37:49,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2024-11-14 05:37:49,258 INFO L276 IsEmpty]: Start isEmpty. Operand 9500 states and 13953 transitions. [2024-11-14 05:37:49,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-14 05:37:49,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:37:49,273 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:37:49,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-14 05:37:49,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:37:49,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:37:49,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1373163216, now seen corresponding path program 1 times [2024-11-14 05:37:49,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:37:49,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530149635] [2024-11-14 05:37:49,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:37:49,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:37:55,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:37:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 377 trivial. 0 not checked. [2024-11-14 05:37:55,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:37:55,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530149635] [2024-11-14 05:37:55,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530149635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:37:55,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:37:55,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:37:55,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282174805] [2024-11-14 05:37:55,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:37:55,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:37:55,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:37:55,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:37:55,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:37:55,787 INFO L87 Difference]: Start difference. First operand 9500 states and 13953 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-14 05:37:57,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:00,036 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:05,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:05,363 INFO L93 Difference]: Finished difference Result 19045 states and 27977 transitions. [2024-11-14 05:38:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:38:05,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 265 [2024-11-14 05:38:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:05,449 INFO L225 Difference]: With dead ends: 19045 [2024-11-14 05:38:05,449 INFO L226 Difference]: Without dead ends: 9554 [2024-11-14 05:38:05,496 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 [2024-11-14 05:38:05,497 INFO L432 NwaCegarLoop]: 2008 mSDtfsCounter, 7 mSDsluCounter, 2001 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 0 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 4009 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:05,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 4009 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 540 Invalid, 2 Unknown, 0 Unchecked, 9.2s Time] [2024-11-14 05:38:05,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9554 states. [2024-11-14 05:38:06,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9554 to 9506. [2024-11-14 05:38:06,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9506 states, 5414 states have (on average 1.2759512375323236) internal successors, (6908), 5643 states have internal predecessors, (6908), 3518 states have call successors, (3518), 578 states have call predecessors, (3518), 573 states have return successors, (3533), 3420 states have call predecessors, (3533), 3518 states have call successors, (3533) [2024-11-14 05:38:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9506 states to 9506 states and 13959 transitions. [2024-11-14 05:38:06,249 INFO L78 Accepts]: Start accepts. Automaton has 9506 states and 13959 transitions. Word has length 265 [2024-11-14 05:38:06,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:38:06,251 INFO L471 AbstractCegarLoop]: Abstraction has 9506 states and 13959 transitions. [2024-11-14 05:38:06,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2024-11-14 05:38:06,252 INFO L276 IsEmpty]: Start isEmpty. Operand 9506 states and 13959 transitions. [2024-11-14 05:38:06,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-14 05:38:06,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:06,265 INFO L215 NwaCegarLoop]: trace histogram [12, 11, 11, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:38:06,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-14 05:38:06,266 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:38:06,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:06,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1722362972, now seen corresponding path program 1 times [2024-11-14 05:38:06,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:06,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174638091] [2024-11-14 05:38:06,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:06,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 384 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2024-11-14 05:38:13,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:13,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174638091] [2024-11-14 05:38:13,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174638091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:13,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:38:13,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:38:13,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464019022] [2024-11-14 05:38:13,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:13,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:38:13,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:13,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:38:13,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:13,377 INFO L87 Difference]: Start difference. First operand 9506 states and 13959 transitions. Second operand has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-14 05:38:15,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:17,590 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 [] [2024-11-14 05:38:24,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:24,260 INFO L93 Difference]: Finished difference Result 22881 states and 33686 transitions. [2024-11-14 05:38:24,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:38:24,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 271 [2024-11-14 05:38:24,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:24,375 INFO L225 Difference]: With dead ends: 22881 [2024-11-14 05:38:24,375 INFO L226 Difference]: Without dead ends: 13384 [2024-11-14 05:38:24,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:24,430 INFO L432 NwaCegarLoop]: 3368 mSDtfsCounter, 2049 mSDsluCounter, 1627 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 16 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2049 SdHoareTripleChecker+Valid, 4995 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:24,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2049 Valid, 4995 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 723 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-14 05:38:24,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13384 states. [2024-11-14 05:38:25,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13384 to 13378. [2024-11-14 05:38:25,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13378 states, 7547 states have (on average 1.272823638531867) internal successors, (9606), 7878 states have internal predecessors, (9606), 5031 states have call successors, (5031), 804 states have call predecessors, (5031), 799 states have return successors, (5046), 4891 states have call predecessors, (5046), 5031 states have call successors, (5046) [2024-11-14 05:38:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13378 states to 13378 states and 19683 transitions. [2024-11-14 05:38:25,770 INFO L78 Accepts]: Start accepts. Automaton has 13378 states and 19683 transitions. Word has length 271 [2024-11-14 05:38:25,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:38:25,771 INFO L471 AbstractCegarLoop]: Abstraction has 13378 states and 19683 transitions. [2024-11-14 05:38:25,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.666666666666664) internal successors, (125), 3 states have internal predecessors, (125), 3 states have call successors, (42), 2 states have call predecessors, (42), 1 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2024-11-14 05:38:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 13378 states and 19683 transitions. [2024-11-14 05:38:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-14 05:38:25,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:25,790 INFO L215 NwaCegarLoop]: trace histogram [14, 13, 13, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:38:25,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-14 05:38:25,790 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:38:25,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:25,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1362265640, now seen corresponding path program 1 times [2024-11-14 05:38:25,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:25,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260482530] [2024-11-14 05:38:25,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:25,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:32,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:32,875 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-11-14 05:38:32,875 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:32,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260482530] [2024-11-14 05:38:32,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260482530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:32,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:38:32,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:38:32,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528207783] [2024-11-14 05:38:32,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:32,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:38:32,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:32,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:38:32,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:32,886 INFO L87 Difference]: Start difference. First operand 13378 states and 19683 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2024-11-14 05:38:34,950 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:37,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:43,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:38:43,798 INFO L93 Difference]: Finished difference Result 28815 states and 42359 transitions. [2024-11-14 05:38:43,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:38:43,799 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) Word has length 313 [2024-11-14 05:38:43,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:38:43,930 INFO L225 Difference]: With dead ends: 28815 [2024-11-14 05:38:43,931 INFO L226 Difference]: Without dead ends: 15446 [2024-11-14 05:38:44,003 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:38:44,004 INFO L432 NwaCegarLoop]: 2969 mSDtfsCounter, 1319 mSDsluCounter, 1964 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 14 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1319 SdHoareTripleChecker+Valid, 4933 SdHoareTripleChecker+Invalid, 741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:38:44,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1319 Valid, 4933 Invalid, 741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 725 Invalid, 2 Unknown, 0 Unchecked, 10.4s Time] [2024-11-14 05:38:44,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15446 states. [2024-11-14 05:38:45,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15446 to 15440. [2024-11-14 05:38:45,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15440 states, 8766 states have (on average 1.2727583846680357) internal successors, (11157), 9146 states have internal predecessors, (11157), 5730 states have call successors, (5730), 948 states have call predecessors, (5730), 943 states have return successors, (5745), 5572 states have call predecessors, (5745), 5730 states have call successors, (5745) [2024-11-14 05:38:45,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15440 states to 15440 states and 22632 transitions. [2024-11-14 05:38:45,355 INFO L78 Accepts]: Start accepts. Automaton has 15440 states and 22632 transitions. Word has length 313 [2024-11-14 05:38:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:38:45,357 INFO L471 AbstractCegarLoop]: Abstraction has 15440 states and 22632 transitions. [2024-11-14 05:38:45,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (41), 3 states have call predecessors, (41), 3 states have call successors, (41) [2024-11-14 05:38:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 15440 states and 22632 transitions. [2024-11-14 05:38:45,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-14 05:38:45,374 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:38:45,375 INFO L215 NwaCegarLoop]: trace histogram [16, 14, 14, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:38:45,375 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-14 05:38:45,375 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:38:45,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:38:45,376 INFO L85 PathProgramCache]: Analyzing trace with hash 465408494, now seen corresponding path program 1 times [2024-11-14 05:38:45,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:38:45,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881587283] [2024-11-14 05:38:45,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:38:45,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:38:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:38:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-14 05:38:51,743 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:38:51,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881587283] [2024-11-14 05:38:51,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881587283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:38:51,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:38:51,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:38:51,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803455124] [2024-11-14 05:38:51,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:38:51,745 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:38:51,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:38:51,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:38:51,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:38:51,746 INFO L87 Difference]: Start difference. First operand 15440 states and 22632 transitions. Second operand has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:38:53,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:56,024 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:38:58,214 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:00,417 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 [] [2024-11-14 05:39:14,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:14,200 INFO L93 Difference]: Finished difference Result 33887 states and 49641 transitions. [2024-11-14 05:39:14,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:39:14,201 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 350 [2024-11-14 05:39:14,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:14,356 INFO L225 Difference]: With dead ends: 33887 [2024-11-14 05:39:14,357 INFO L226 Difference]: Without dead ends: 18456 [2024-11-14 05:39:14,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:39:14,442 INFO L432 NwaCegarLoop]: 3071 mSDtfsCounter, 1414 mSDsluCounter, 8095 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1414 SdHoareTripleChecker+Valid, 11166 SdHoareTripleChecker+Invalid, 1595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:39:14,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1414 Valid, 11166 Invalid, 1595 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1588 Invalid, 4 Unknown, 0 Unchecked, 21.7s Time] [2024-11-14 05:39:14,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18456 states. [2024-11-14 05:39:15,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18456 to 18442. [2024-11-14 05:39:15,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18442 states, 10484 states have (on average 1.2726058756199923) internal successors, (13342), 10929 states have internal predecessors, (13342), 6816 states have call successors, (6816), 1147 states have call predecessors, (6816), 1141 states have return successors, (6835), 6633 states have call predecessors, (6835), 6816 states have call successors, (6835) [2024-11-14 05:39:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18442 states to 18442 states and 26993 transitions. [2024-11-14 05:39:15,693 INFO L78 Accepts]: Start accepts. Automaton has 18442 states and 26993 transitions. Word has length 350 [2024-11-14 05:39:15,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:15,694 INFO L471 AbstractCegarLoop]: Abstraction has 18442 states and 26993 transitions. [2024-11-14 05:39:15,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.6) internal successors, (138), 4 states have internal predecessors, (138), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:39:15,695 INFO L276 IsEmpty]: Start isEmpty. Operand 18442 states and 26993 transitions. [2024-11-14 05:39:15,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 352 [2024-11-14 05:39:15,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:15,714 INFO L215 NwaCegarLoop]: trace histogram [16, 14, 14, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:15,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-14 05:39:15,715 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:39:15,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:15,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1446671166, now seen corresponding path program 1 times [2024-11-14 05:39:15,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:15,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707738978] [2024-11-14 05:39:15,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:15,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:23,357 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-14 05:39:23,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:39:23,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707738978] [2024-11-14 05:39:23,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707738978] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:23,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:23,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:39:23,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951698104] [2024-11-14 05:39:23,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:23,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:39:23,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:39:23,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:39:23,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:39:23,363 INFO L87 Difference]: Start difference. First operand 18442 states and 26993 transitions. Second operand has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:39:25,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:27,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.20s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:29,810 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:31,992 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:47,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:39:47,068 INFO L93 Difference]: Finished difference Result 38927 states and 56927 transitions. [2024-11-14 05:39:47,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:39:47,069 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 351 [2024-11-14 05:39:47,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:39:47,240 INFO L225 Difference]: With dead ends: 38927 [2024-11-14 05:39:47,240 INFO L226 Difference]: Without dead ends: 20494 [2024-11-14 05:39:47,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:39:47,344 INFO L432 NwaCegarLoop]: 3144 mSDtfsCounter, 1303 mSDsluCounter, 8249 mSDsCounter, 0 mSdLazyCounter, 1627 mSolverCounterSat, 8 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1303 SdHoareTripleChecker+Valid, 11393 SdHoareTripleChecker+Invalid, 1639 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1627 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2024-11-14 05:39:47,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1303 Valid, 11393 Invalid, 1639 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 1627 Invalid, 4 Unknown, 0 Unchecked, 22.6s Time] [2024-11-14 05:39:47,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20494 states. [2024-11-14 05:39:48,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20494 to 20480. [2024-11-14 05:39:48,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20480 states, 11671 states have (on average 1.2719561305800702) internal successors, (14845), 12165 states have internal predecessors, (14845), 7515 states have call successors, (7515), 1295 states have call predecessors, (7515), 1293 states have return successors, (7538), 7318 states have call predecessors, (7538), 7515 states have call successors, (7538) [2024-11-14 05:39:48,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20480 states to 20480 states and 29898 transitions. [2024-11-14 05:39:48,863 INFO L78 Accepts]: Start accepts. Automaton has 20480 states and 29898 transitions. Word has length 351 [2024-11-14 05:39:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:39:48,865 INFO L471 AbstractCegarLoop]: Abstraction has 20480 states and 29898 transitions. [2024-11-14 05:39:48,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 27.8) internal successors, (139), 4 states have internal predecessors, (139), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:39:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 20480 states and 29898 transitions. [2024-11-14 05:39:48,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2024-11-14 05:39:48,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:39:48,885 INFO L215 NwaCegarLoop]: trace histogram [16, 14, 14, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:39:48,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-14 05:39:48,886 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:39:48,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:39:48,890 INFO L85 PathProgramCache]: Analyzing trace with hash -387446831, now seen corresponding path program 1 times [2024-11-14 05:39:48,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:39:48,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126783758] [2024-11-14 05:39:48,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:39:48,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:39:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:39:55,513 INFO L134 CoverageAnalysis]: Checked inductivity of 705 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-14 05:39:55,514 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:39:55,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126783758] [2024-11-14 05:39:55,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126783758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:39:55,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:39:55,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-14 05:39:55,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964231749] [2024-11-14 05:39:55,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:39:55,515 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-14 05:39:55,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:39:55,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-14 05:39:55,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:39:55,518 INFO L87 Difference]: Start difference. First operand 20480 states and 29898 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:39:57,584 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:39:59,772 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:01,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:04,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:18,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:18,772 INFO L93 Difference]: Finished difference Result 42975 states and 62721 transitions. [2024-11-14 05:40:18,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-14 05:40:18,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) Word has length 352 [2024-11-14 05:40:18,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:18,952 INFO L225 Difference]: With dead ends: 42975 [2024-11-14 05:40:18,952 INFO L226 Difference]: Without dead ends: 22504 [2024-11-14 05:40:19,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:40:19,066 INFO L432 NwaCegarLoop]: 3143 mSDtfsCounter, 1292 mSDsluCounter, 8253 mSDsCounter, 0 mSdLazyCounter, 1632 mSolverCounterSat, 9 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1292 SdHoareTripleChecker+Valid, 11396 SdHoareTripleChecker+Invalid, 1645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1632 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.4s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:19,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1292 Valid, 11396 Invalid, 1645 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [9 Valid, 1632 Invalid, 4 Unknown, 0 Unchecked, 22.4s Time] [2024-11-14 05:40:19,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22504 states. [2024-11-14 05:40:20,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22504 to 22490. [2024-11-14 05:40:20,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22490 states, 12846 states have (on average 1.271679900358088) internal successors, (16336), 13389 states have internal predecessors, (16336), 8210 states have call successors, (8210), 1435 states have call predecessors, (8210), 1433 states have return successors, (8233), 7995 states have call predecessors, (8233), 8210 states have call successors, (8233) [2024-11-14 05:40:20,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22490 states to 22490 states and 32779 transitions. [2024-11-14 05:40:20,448 INFO L78 Accepts]: Start accepts. Automaton has 22490 states and 32779 transitions. Word has length 352 [2024-11-14 05:40:20,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:20,449 INFO L471 AbstractCegarLoop]: Abstraction has 22490 states and 32779 transitions. [2024-11-14 05:40:20,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 4 states have internal predecessors, (140), 3 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (44), 4 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:40:20,449 INFO L276 IsEmpty]: Start isEmpty. Operand 22490 states and 32779 transitions. [2024-11-14 05:40:20,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-14 05:40:20,463 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:20,464 INFO L215 NwaCegarLoop]: trace histogram [17, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:20,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-14 05:40:20,464 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:20,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:20,465 INFO L85 PathProgramCache]: Analyzing trace with hash 681823617, now seen corresponding path program 1 times [2024-11-14 05:40:20,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:40:20,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373407155] [2024-11-14 05:40:20,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:20,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:40:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:27,094 INFO L134 CoverageAnalysis]: Checked inductivity of 781 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 706 trivial. 0 not checked. [2024-11-14 05:40:27,094 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:40:27,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373407155] [2024-11-14 05:40:27,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373407155] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:27,095 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:27,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:40:27,095 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324967065] [2024-11-14 05:40:27,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:27,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:40:27,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:40:27,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:40:27,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:27,097 INFO L87 Difference]: Start difference. First operand 22490 states and 32779 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:40:29,162 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:31,366 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 [] [2024-11-14 05:40:38,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:38,428 INFO L93 Difference]: Finished difference Result 47723 states and 69564 transitions. [2024-11-14 05:40:38,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:38,429 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 363 [2024-11-14 05:40:38,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:38,627 INFO L225 Difference]: With dead ends: 47723 [2024-11-14 05:40:38,627 INFO L226 Difference]: Without dead ends: 25242 [2024-11-14 05:40:38,747 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 [2024-11-14 05:40:38,748 INFO L432 NwaCegarLoop]: 3185 mSDtfsCounter, 1406 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 745 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1406 SdHoareTripleChecker+Valid, 5152 SdHoareTripleChecker+Invalid, 749 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 745 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.5s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:38,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1406 Valid, 5152 Invalid, 749 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 745 Invalid, 2 Unknown, 0 Unchecked, 10.5s Time] [2024-11-14 05:40:38,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25242 states. [2024-11-14 05:40:40,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25242 to 25236. [2024-11-14 05:40:40,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25236 states, 14424 states have (on average 1.2726012201885746) internal successors, (18356), 15032 states have internal predecessors, (18356), 9203 states have call successors, (9203), 1612 states have call predecessors, (9203), 1608 states have return successors, (9226), 8962 states have call predecessors, (9226), 9203 states have call successors, (9226) [2024-11-14 05:40:40,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25236 states to 25236 states and 36785 transitions. [2024-11-14 05:40:40,312 INFO L78 Accepts]: Start accepts. Automaton has 25236 states and 36785 transitions. Word has length 363 [2024-11-14 05:40:40,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:40,313 INFO L471 AbstractCegarLoop]: Abstraction has 25236 states and 36785 transitions. [2024-11-14 05:40:40,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:40:40,313 INFO L276 IsEmpty]: Start isEmpty. Operand 25236 states and 36785 transitions. [2024-11-14 05:40:40,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2024-11-14 05:40:40,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:40,329 INFO L215 NwaCegarLoop]: trace histogram [17, 14, 14, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:40,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-14 05:40:40,330 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:40,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:40,330 INFO L85 PathProgramCache]: Analyzing trace with hash 850357707, now seen corresponding path program 1 times [2024-11-14 05:40:40,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:40:40,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [270264898] [2024-11-14 05:40:40,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:40,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:40:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:40:46,079 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 727 trivial. 0 not checked. [2024-11-14 05:40:46,080 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:40:46,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [270264898] [2024-11-14 05:40:46,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [270264898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:40:46,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-14 05:40:46,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-14 05:40:46,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618843064] [2024-11-14 05:40:46,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:40:46,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:40:46,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:40:46,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:40:46,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-14 05:40:46,083 INFO L87 Difference]: Start difference. First operand 25236 states and 36785 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:40:48,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:50,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:40:57,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:40:57,819 INFO L93 Difference]: Finished difference Result 52507 states and 76515 transitions. [2024-11-14 05:40:57,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:40:57,819 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) Word has length 371 [2024-11-14 05:40:57,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:40:58,032 INFO L225 Difference]: With dead ends: 52507 [2024-11-14 05:40:58,032 INFO L226 Difference]: Without dead ends: 27280 [2024-11-14 05:40:58,158 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 [2024-11-14 05:40:58,160 INFO L432 NwaCegarLoop]: 2902 mSDtfsCounter, 1304 mSDsluCounter, 1970 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 9 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1304 SdHoareTripleChecker+Valid, 4872 SdHoareTripleChecker+Invalid, 715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2024-11-14 05:40:58,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1304 Valid, 4872 Invalid, 715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 704 Invalid, 2 Unknown, 0 Unchecked, 10.7s Time] [2024-11-14 05:40:58,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27280 states. [2024-11-14 05:40:59,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27280 to 27274. [2024-11-14 05:40:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27274 states, 15619 states have (on average 1.2724886356360843) internal successors, (19875), 16276 states have internal predecessors, (19875), 9902 states have call successors, (9902), 1756 states have call predecessors, (9902), 1752 states have return successors, (9925), 9643 states have call predecessors, (9925), 9902 states have call successors, (9925) [2024-11-14 05:40:59,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27274 states to 27274 states and 39702 transitions. [2024-11-14 05:40:59,774 INFO L78 Accepts]: Start accepts. Automaton has 27274 states and 39702 transitions. Word has length 371 [2024-11-14 05:40:59,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:40:59,777 INFO L471 AbstractCegarLoop]: Abstraction has 27274 states and 39702 transitions. [2024-11-14 05:40:59,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 3 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (44), 3 states have call predecessors, (44), 3 states have call successors, (44) [2024-11-14 05:40:59,777 INFO L276 IsEmpty]: Start isEmpty. Operand 27274 states and 39702 transitions. [2024-11-14 05:40:59,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-11-14 05:40:59,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:40:59,795 INFO L215 NwaCegarLoop]: trace histogram [17, 15, 15, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:40:59,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-14 05:40:59,796 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:40:59,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:40:59,796 INFO L85 PathProgramCache]: Analyzing trace with hash -108232198, now seen corresponding path program 1 times [2024-11-14 05:40:59,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:40:59,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113266284] [2024-11-14 05:40:59,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:40:59,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-14 05:41:06,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:07,053 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 78 proven. 15 refuted. 0 times theorem prover too weak. 759 trivial. 0 not checked. [2024-11-14 05:41:07,054 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2024-11-14 05:41:07,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113266284] [2024-11-14 05:41:07,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113266284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-14 05:41:07,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [13092984] [2024-11-14 05:41:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:07,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-14 05:41:07,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 [2024-11-14 05:41:07,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-14 05:41:07,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-14 05:41:14,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-14 05:41:14,253 INFO L255 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-14 05:41:14,270 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-14 05:41:14,659 INFO L134 CoverageAnalysis]: Checked inductivity of 852 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 575 trivial. 0 not checked. [2024-11-14 05:41:14,659 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-14 05:41:14,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [13092984] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-14 05:41:14,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-14 05:41:14,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-14 05:41:14,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221941002] [2024-11-14 05:41:14,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-14 05:41:14,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-14 05:41:14,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2024-11-14 05:41:14,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-14 05:41:14,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:41:14,663 INFO L87 Difference]: Start difference. First operand 27274 states and 39702 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-14 05:41:16,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:18,882 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-14 05:41:25,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-14 05:41:25,990 INFO L93 Difference]: Finished difference Result 56603 states and 82381 transitions. [2024-11-14 05:41:25,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-14 05:41:25,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) Word has length 382 [2024-11-14 05:41:25,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-14 05:41:26,161 INFO L225 Difference]: With dead ends: 56603 [2024-11-14 05:41:26,161 INFO L226 Difference]: Without dead ends: 29338 [2024-11-14 05:41:26,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 386 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-14 05:41:26,278 INFO L432 NwaCegarLoop]: 2923 mSDtfsCounter, 2099 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 22 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2099 SdHoareTripleChecker+Valid, 4509 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-14 05:41:26,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2099 Valid, 4509 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 630 Invalid, 2 Unknown, 0 Unchecked, 10.1s Time] [2024-11-14 05:41:26,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29338 states. [2024-11-14 05:41:27,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29338 to 29332. [2024-11-14 05:41:27,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29332 states, 16830 states have (on average 1.2737967914438502) internal successors, (21438), 17536 states have internal predecessors, (21438), 10601 states have call successors, (10601), 1904 states have call predecessors, (10601), 1900 states have return successors, (10624), 10324 states have call predecessors, (10624), 10601 states have call successors, (10624) [2024-11-14 05:41:27,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29332 states to 29332 states and 42663 transitions. [2024-11-14 05:41:27,926 INFO L78 Accepts]: Start accepts. Automaton has 29332 states and 42663 transitions. Word has length 382 [2024-11-14 05:41:27,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-14 05:41:27,927 INFO L471 AbstractCegarLoop]: Abstraction has 29332 states and 42663 transitions. [2024-11-14 05:41:27,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 3 states have call successors, (50), 3 states have call predecessors, (50), 3 states have return successors, (46), 3 states have call predecessors, (46), 3 states have call successors, (46) [2024-11-14 05:41:27,927 INFO L276 IsEmpty]: Start isEmpty. Operand 29332 states and 42663 transitions. [2024-11-14 05:41:27,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2024-11-14 05:41:27,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-14 05:41:27,945 INFO L215 NwaCegarLoop]: trace histogram [19, 14, 14, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-14 05:41:27,986 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-14 05:41:28,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9fd79112-7405-4146-8d76-b9d3579bb573/bin/utaipan-verify-sOmjnqqW8E/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-14 05:41:28,146 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-14 05:41:28,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-14 05:41:28,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1734155054, now seen corresponding path program 1 times [2024-11-14 05:41:28,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2024-11-14 05:41:28,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813862716] [2024-11-14 05:41:28,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-14 05:41:28,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms