./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 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/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_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ --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 c76818fb304a0b40bd70831524c213fb48469a57ba59c902bf604bd33d1e93eb --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:12:44,460 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:12:44,542 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-19 04:12:44,548 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:12:44,548 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-19 04:12:44,575 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:12:44,576 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-19 04:12:44,576 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-19 04:12:44,577 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:12:44,578 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-19 04:12:44,579 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-19 04:12:44,579 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-19 04:12:44,580 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-19 04:12:44,581 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-19 04:12:44,581 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-19 04:12:44,582 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-19 04:12:44,583 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-19 04:12:44,583 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-19 04:12:44,584 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-19 04:12:44,585 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-19 04:12:44,585 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-19 04:12:44,586 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-19 04:12:44,587 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:12:44,588 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:12:44,588 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:12:44,589 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:12:44,590 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:12:44,590 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:12:44,591 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:12:44,591 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:12:44,592 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:12:44,592 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:12:44,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-19 04:12:44,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:44,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:12:44,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:12:44,595 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:12:44,595 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-19 04:12:44,595 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:12:44,595 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:12:44,596 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-19 04:12:44,596 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:12:44,596 INFO L153 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c76818fb304a0b40bd70831524c213fb48469a57ba59c902bf604bd33d1e93eb [2023-11-19 04:12:44,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:12:44,939 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:12:44,942 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:12:44,944 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:12:44,944 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:12:44,946 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-19 04:12:48,141 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:12:48,985 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:12:48,987 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-19 04:12:49,058 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/data/dbd97d5f7/f79c124c17c54299bcf330ebaa7bf5b7/FLAGf450d9e1c [2023-11-19 04:12:49,078 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/data/dbd97d5f7/f79c124c17c54299bcf330ebaa7bf5b7 [2023-11-19 04:12:49,085 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:12:49,086 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:12:49,088 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:49,088 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:12:49,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:12:49,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:49" (1/1) ... [2023-11-19 04:12:49,099 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd6d414 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:49, skipping insertion in model container [2023-11-19 04:12:49,099 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:12:49" (1/1) ... [2023-11-19 04:12:49,402 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:12:52,535 WARN L240 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_f8e3aebf-8af8-439c-966e-c92407b4d7c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2023-11-19 04:12:52,540 WARN L240 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_f8e3aebf-8af8-439c-966e-c92407b4d7c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2023-11-19 04:12:52,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:52,617 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:12:52,784 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] [2023-11-19 04:12:52,786 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] [2023-11-19 04:12:52,788 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] [2023-11-19 04:12:52,788 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] [2023-11-19 04:12:52,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5315] [2023-11-19 04:12:52,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5318] [2023-11-19 04:12:52,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5321] [2023-11-19 04:12:52,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5324] [2023-11-19 04:12:52,794 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5393] [2023-11-19 04:12:52,795 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5439] [2023-11-19 04:12:52,796 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5447] [2023-11-19 04:12:52,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5454] [2023-11-19 04:12:52,797 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5462] [2023-11-19 04:12:52,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5469] [2023-11-19 04:12:52,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5477] [2023-11-19 04:12:52,798 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5484] [2023-11-19 04:12:52,799 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5491] [2023-11-19 04:12:52,807 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] [2023-11-19 04:12:52,816 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] [2023-11-19 04:12:53,108 WARN L240 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_f8e3aebf-8af8-439c-966e-c92407b4d7c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2023-11-19 04:12:53,109 WARN L240 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_f8e3aebf-8af8-439c-966e-c92407b4d7c3/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2023-11-19 04:12:53,116 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:12:53,343 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:12:53,343 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:12:53,343 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-19 04:12:53,371 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:12:53,371 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53 WrapperNode [2023-11-19 04:12:53,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:12:53,373 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:53,373 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:12:53,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:12:53,382 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:53,527 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:53,818 INFO L138 Inliner]: procedures = 390, calls = 1919, calls flagged for inlining = 177, calls inlined = 157, statements flattened = 5078 [2023-11-19 04:12:53,820 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:12:53,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:12:53,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:12:53,822 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:12:53,833 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:53,833 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:53,886 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:53,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:54,051 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:54,090 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:54,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:54,149 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:54,194 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:12:54,195 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:12:54,196 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:12:54,196 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:12:54,197 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (1/1) ... [2023-11-19 04:12:54,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-19 04:12:54,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/z3 [2023-11-19 04:12:54,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-19 04:12:54,264 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8e3aebf-8af8-439c-966e-c92407b4d7c3/bin/utaipan-verify-t7M7D8N6sZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-19 04:12:54,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-19 04:12:54,304 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-19 04:12:54,304 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-19 04:12:54,305 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-19 04:12:54,305 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2023-11-19 04:12:54,307 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2023-11-19 04:12:54,307 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-19 04:12:54,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-19 04:12:54,308 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-19 04:12:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-19 04:12:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-19 04:12:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-19 04:12:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-19 04:12:54,309 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-19 04:12:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-19 04:12:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-19 04:12:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-19 04:12:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-19 04:12:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-19 04:12:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-19 04:12:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-19 04:12:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-19 04:12:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-19 04:12:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-19 04:12:54,311 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-19 04:12:54,311 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-19 04:12:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-19 04:12:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-19 04:12:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-19 04:12:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-19 04:12:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:12:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-19 04:12:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-19 04:12:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-19 04:12:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-19 04:12:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_103 [2023-11-19 04:12:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_103 [2023-11-19 04:12:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-19 04:12:54,363 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-19 04:12:54,363 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-19 04:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-19 04:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-19 04:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-19 04:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-19 04:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-19 04:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-19 04:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-19 04:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:12:54,364 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-19 04:12:54,364 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-19 04:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-19 04:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-19 04:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-19 04:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-19 04:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-19 04:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-19 04:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-19 04:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-19 04:12:54,365 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-19 04:12:54,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-19 04:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-19 04:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-19 04:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-19 04:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-19 04:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-19 04:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-19 04:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-19 04:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-19 04:12:54,366 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-19 04:12:54,366 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-19 04:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-19 04:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-19 04:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-19 04:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-19 04:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-19 04:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-19 04:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-19 04:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-19 04:12:54,367 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-19 04:12:54,367 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-19 04:12:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-19 04:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-19 04:12:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-19 04:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-19 04:12:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-19 04:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-19 04:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-19 04:12:54,368 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:12:54,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-19 04:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:12:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-19 04:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-19 04:12:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-19 04:12:54,369 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-19 04:12:54,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-19 04:12:54,371 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-19 04:12:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-19 04:12:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-19 04:12:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-19 04:12:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-19 04:12:54,372 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-19 04:12:54,372 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-19 04:12:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-19 04:12:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-19 04:12:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-19 04:12:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:12:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:12:54,373 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-19 04:12:54,373 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-19 04:12:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-19 04:12:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-19 04:12:54,374 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-19 04:12:54,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-19 04:12:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-19 04:12:54,375 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-19 04:12:54,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-19 04:12:54,376 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-19 04:12:54,376 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-19 04:12:54,377 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-19 04:12:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:12:54,377 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-19 04:12:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-19 04:12:54,378 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-19 04:12:54,379 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-19 04:12:54,379 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:12:54,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-19 04:12:54,383 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-19 04:12:54,384 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-19 04:12:54,384 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-19 04:12:54,385 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-19 04:12:54,385 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-19 04:12:54,386 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-19 04:12:54,387 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-19 04:12:54,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-19 04:12:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-19 04:12:54,388 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-19 04:12:54,388 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2023-11-19 04:12:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2023-11-19 04:12:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-19 04:12:54,389 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-19 04:12:54,389 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-19 04:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-19 04:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-19 04:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-19 04:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-19 04:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-19 04:12:54,390 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-19 04:12:54,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-19 04:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 04:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-19 04:12:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-19 04:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-19 04:12:54,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-19 04:12:54,391 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-19 04:12:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-19 04:12:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-19 04:12:54,392 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-19 04:12:54,392 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-19 04:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-19 04:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-19 04:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-19 04:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-19 04:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-19 04:12:54,393 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-19 04:12:54,393 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-19 04:12:54,394 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-19 04:12:54,394 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-19 04:12:54,395 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-19 04:12:54,395 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-19 04:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-19 04:12:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-19 04:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-19 04:12:54,396 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-19 04:12:54,396 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-19 04:12:54,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-19 04:12:54,397 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-19 04:12:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-19 04:12:54,398 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-19 04:12:54,398 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-19 04:12:55,217 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:12:55,222 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:12:55,607 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-19 04:12:59,415 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-19 04:12:59,417 WARN L813 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-19 04:12:59,849 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet748#1 := ~tmp___4~7#1; [2023-11-19 04:12:59,849 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet748#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet748#1 % 18446744073709551616 <= 2096896; [2023-11-19 04:12:59,849 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-2: assume 0 == #t~nondet748#1 % 18446744073709551616;havoc #t~nondet748#1; [2023-11-19 04:12:59,850 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-2: assume !(0 == #t~nondet748#1 % 18446744073709551616);havoc #t~nondet748#1; [2023-11-19 04:12:59,850 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-4: 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; [2023-11-19 04:12:59,850 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-4: 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); [2023-11-19 04:12:59,850 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566-1: assume -9223372036854775808 <= #t~ret749#1 && #t~ret749#1 <= 9223372036854775807;havoc #t~ret749#1; [2023-11-19 04:12:59,851 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566: SUMMARY for call #t~ret749#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-19 04:12:59,851 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-19 04:12:59,851 INFO L767 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet748#1 := 0; [2023-11-19 04:13:00,116 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:13:03,189 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:13:03,190 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 04:13:03,208 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:03 BoogieIcfgContainer [2023-11-19 04:13:03,208 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:13:03,211 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-19 04:13:03,211 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-19 04:13:03,215 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-19 04:13:03,215 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:12:49" (1/3) ... [2023-11-19 04:13:03,217 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692d2652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:03, skipping insertion in model container [2023-11-19 04:13:03,218 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:12:53" (2/3) ... [2023-11-19 04:13:03,218 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@692d2652 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:13:03, skipping insertion in model container [2023-11-19 04:13:03,219 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:13:03" (3/3) ... [2023-11-19 04:13:03,221 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-19 04:13:03,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-19 04:13:03,244 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-19 04:13:03,362 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-19 04:13:03,371 INFO L357 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, mHoare=true, 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;@7d44b504, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-19 04:13:03,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-19 04:13:03,388 INFO L276 IsEmpty]: Start isEmpty. Operand has 1541 states, 849 states have (on average 1.3003533568904593) internal successors, (1104), 889 states have internal predecessors, (1104), 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) [2023-11-19 04:13:03,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-19 04:13:03,437 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:03,438 INFO L195 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] [2023-11-19 04:13:03,439 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:03,447 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:03,448 INFO L85 PathProgramCache]: Analyzing trace with hash -2071198716, now seen corresponding path program 1 times [2023-11-19 04:13:03,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:03,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385573586] [2023-11-19 04:13:03,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:03,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-19 04:13:04,533 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385573586] [2023-11-19 04:13:04,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385573586] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:04,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:04,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:04,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709431494] [2023-11-19 04:13:04,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:04,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:04,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:04,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:04,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:04,597 INFO L87 Difference]: Start difference. First operand has 1541 states, 849 states have (on average 1.3003533568904593) internal successors, (1104), 889 states have internal predecessors, (1104), 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 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-19 04:13:06,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:06,837 INFO L93 Difference]: Finished difference Result 4413 states and 6722 transitions. [2023-11-19 04:13:06,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:06,840 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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 103 [2023-11-19 04:13:06,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:06,905 INFO L225 Difference]: With dead ends: 4413 [2023-11-19 04:13:06,905 INFO L226 Difference]: Without dead ends: 2827 [2023-11-19 04:13:06,930 INFO L412 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 [2023-11-19 04:13:06,934 INFO L413 NwaCegarLoop]: 2376 mSDtfsCounter, 2072 mSDsluCounter, 2004 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2072 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:06,936 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2072 Valid, 4380 Invalid, 576 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 570 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-19 04:13:06,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2827 states. [2023-11-19 04:13:07,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2827 to 2823. [2023-11-19 04:13:07,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2823 states, 1560 states have (on average 1.2935897435897437) internal successors, (2018), 1633 states have internal predecessors, (2018), 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) [2023-11-19 04:13:07,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2823 states to 2823 states and 4253 transitions. [2023-11-19 04:13:07,364 INFO L78 Accepts]: Start accepts. Automaton has 2823 states and 4253 transitions. Word has length 103 [2023-11-19 04:13:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:07,365 INFO L495 AbstractCegarLoop]: Abstraction has 2823 states and 4253 transitions. [2023-11-19 04:13:07,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 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) [2023-11-19 04:13:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 2823 states and 4253 transitions. [2023-11-19 04:13:07,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2023-11-19 04:13:07,385 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:07,385 INFO L195 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] [2023-11-19 04:13:07,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-19 04:13:07,386 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:07,387 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:07,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1521514446, now seen corresponding path program 1 times [2023-11-19 04:13:07,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:07,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568831735] [2023-11-19 04:13:07,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:07,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:07,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:07,833 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-19 04:13:07,833 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:07,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568831735] [2023-11-19 04:13:07,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568831735] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:07,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:07,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:07,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258492485] [2023-11-19 04:13:07,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:07,836 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:07,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:07,838 INFO L87 Difference]: Start difference. First operand 2823 states and 4253 transitions. Second operand has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (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) [2023-11-19 04:13:09,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:09,777 INFO L93 Difference]: Finished difference Result 7265 states and 10910 transitions. [2023-11-19 04:13:09,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:09,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (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 156 [2023-11-19 04:13:09,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:09,830 INFO L225 Difference]: With dead ends: 7265 [2023-11-19 04:13:09,830 INFO L226 Difference]: Without dead ends: 4451 [2023-11-19 04:13:09,856 INFO L412 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 [2023-11-19 04:13:09,858 INFO L413 NwaCegarLoop]: 2029 mSDtfsCounter, 1296 mSDsluCounter, 1961 mSDsCounter, 0 mSdLazyCounter, 585 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1296 SdHoareTripleChecker+Valid, 3990 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:09,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1296 Valid, 3990 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 585 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 04:13:09,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4451 states. [2023-11-19 04:13:10,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4451 to 4447. [2023-11-19 04:13:10,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4447 states, 2488 states have (on average 1.290192926045016) internal successors, (3210), 2601 states have internal predecessors, (3210), 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) [2023-11-19 04:13:10,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4447 states to 4447 states and 6637 transitions. [2023-11-19 04:13:10,391 INFO L78 Accepts]: Start accepts. Automaton has 4447 states and 6637 transitions. Word has length 156 [2023-11-19 04:13:10,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:10,394 INFO L495 AbstractCegarLoop]: Abstraction has 4447 states and 6637 transitions. [2023-11-19 04:13:10,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.0) internal successors, (78), 3 states have internal predecessors, (78), 3 states have call successors, (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) [2023-11-19 04:13:10,395 INFO L276 IsEmpty]: Start isEmpty. Operand 4447 states and 6637 transitions. [2023-11-19 04:13:10,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-19 04:13:10,417 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:10,417 INFO L195 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] [2023-11-19 04:13:10,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-19 04:13:10,418 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:10,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:10,428 INFO L85 PathProgramCache]: Analyzing trace with hash -592846812, now seen corresponding path program 1 times [2023-11-19 04:13:10,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:10,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787961537] [2023-11-19 04:13:10,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:10,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2023-11-19 04:13:10,814 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:10,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787961537] [2023-11-19 04:13:10,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787961537] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:10,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:10,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:10,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65928999] [2023-11-19 04:13:10,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:10,817 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:10,817 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:10,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:10,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:10,819 INFO L87 Difference]: Start difference. First operand 4447 states and 6637 transitions. Second operand has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-11-19 04:13:12,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:12,869 INFO L93 Difference]: Finished difference Result 11825 states and 17597 transitions. [2023-11-19 04:13:12,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:12,870 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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 210 [2023-11-19 04:13:12,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:12,950 INFO L225 Difference]: With dead ends: 11825 [2023-11-19 04:13:12,950 INFO L226 Difference]: Without dead ends: 7387 [2023-11-19 04:13:12,983 INFO L412 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 [2023-11-19 04:13:12,988 INFO L413 NwaCegarLoop]: 2003 mSDtfsCounter, 2046 mSDsluCounter, 1947 mSDsCounter, 0 mSdLazyCounter, 557 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2046 SdHoareTripleChecker+Valid, 3950 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:12,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2046 Valid, 3950 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 557 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-19 04:13:13,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7387 states. [2023-11-19 04:13:13,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7387 to 7382. [2023-11-19 04:13:13,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7382 states, 4142 states have (on average 1.282472235634959) internal successors, (5312), 4330 states have internal predecessors, (5312), 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) [2023-11-19 04:13:13,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7382 states to 7382 states and 10949 transitions. [2023-11-19 04:13:13,833 INFO L78 Accepts]: Start accepts. Automaton has 7382 states and 10949 transitions. Word has length 210 [2023-11-19 04:13:13,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:13,834 INFO L495 AbstractCegarLoop]: Abstraction has 7382 states and 10949 transitions. [2023-11-19 04:13:13,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.0) internal successors, (87), 3 states have internal predecessors, (87), 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) [2023-11-19 04:13:13,835 INFO L276 IsEmpty]: Start isEmpty. Operand 7382 states and 10949 transitions. [2023-11-19 04:13:13,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-11-19 04:13:13,847 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:13,847 INFO L195 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] [2023-11-19 04:13:13,848 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-19 04:13:13,848 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:13,848 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:13,849 INFO L85 PathProgramCache]: Analyzing trace with hash -430431207, now seen corresponding path program 1 times [2023-11-19 04:13:13,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:13,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212878623] [2023-11-19 04:13:13,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:13,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:14,399 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-19 04:13:14,400 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:14,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212878623] [2023-11-19 04:13:14,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212878623] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:14,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:14,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:14,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940809661] [2023-11-19 04:13:14,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:14,403 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:14,403 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:14,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:14,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:14,405 INFO L87 Difference]: Start difference. First operand 7382 states and 10949 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2023-11-19 04:13:16,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:16,434 INFO L93 Difference]: Finished difference Result 16803 states and 24870 transitions. [2023-11-19 04:13:16,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:16,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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 201 [2023-11-19 04:13:16,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:16,522 INFO L225 Difference]: With dead ends: 16803 [2023-11-19 04:13:16,522 INFO L226 Difference]: Without dead ends: 9430 [2023-11-19 04:13:16,571 INFO L412 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 [2023-11-19 04:13:16,572 INFO L413 NwaCegarLoop]: 3122 mSDtfsCounter, 1305 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 740 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1305 SdHoareTripleChecker+Valid, 5075 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:16,572 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1305 Valid, 5075 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 740 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-11-19 04:13:16,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9430 states. [2023-11-19 04:13:17,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9430 to 9424. [2023-11-19 04:13:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9424 states, 5332 states have (on average 1.278694673668417) internal successors, (6818), 5569 states have internal predecessors, (6818), 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) [2023-11-19 04:13:17,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9424 states to 9424 states and 13869 transitions. [2023-11-19 04:13:17,514 INFO L78 Accepts]: Start accepts. Automaton has 9424 states and 13869 transitions. Word has length 201 [2023-11-19 04:13:17,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:17,515 INFO L495 AbstractCegarLoop]: Abstraction has 9424 states and 13869 transitions. [2023-11-19 04:13:17,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 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) [2023-11-19 04:13:17,516 INFO L276 IsEmpty]: Start isEmpty. Operand 9424 states and 13869 transitions. [2023-11-19 04:13:17,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2023-11-19 04:13:17,532 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:17,532 INFO L195 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, 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] [2023-11-19 04:13:17,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-19 04:13:17,533 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:17,533 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:17,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1793997539, now seen corresponding path program 1 times [2023-11-19 04:13:17,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:17,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228519666] [2023-11-19 04:13:17,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:17,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:17,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:17,979 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-19 04:13:17,979 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:17,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228519666] [2023-11-19 04:13:17,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228519666] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:17,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:17,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:17,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119569013] [2023-11-19 04:13:17,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:17,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:17,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:17,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:17,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:17,982 INFO L87 Difference]: Start difference. First operand 9424 states and 13869 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2023-11-19 04:13:19,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:19,806 INFO L93 Difference]: Finished difference Result 18893 states and 27809 transitions. [2023-11-19 04:13:19,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:19,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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 264 [2023-11-19 04:13:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:19,905 INFO L225 Difference]: With dead ends: 18893 [2023-11-19 04:13:19,905 INFO L226 Difference]: Without dead ends: 9478 [2023-11-19 04:13:19,961 INFO L412 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 [2023-11-19 04:13:19,963 INFO L413 NwaCegarLoop]: 1995 mSDtfsCounter, 7 mSDsluCounter, 1990 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3985 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:19,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3985 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-19 04:13:19,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9478 states. [2023-11-19 04:13:20,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9478 to 9430. [2023-11-19 04:13:20,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9430 states, 5338 states have (on average 1.2783814162607718) internal successors, (6824), 5575 states have internal predecessors, (6824), 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) [2023-11-19 04:13:20,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9430 states to 9430 states and 13875 transitions. [2023-11-19 04:13:20,934 INFO L78 Accepts]: Start accepts. Automaton has 9430 states and 13875 transitions. Word has length 264 [2023-11-19 04:13:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:20,936 INFO L495 AbstractCegarLoop]: Abstraction has 9430 states and 13875 transitions. [2023-11-19 04:13:20,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 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) [2023-11-19 04:13:20,937 INFO L276 IsEmpty]: Start isEmpty. Operand 9430 states and 13875 transitions. [2023-11-19 04:13:20,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2023-11-19 04:13:20,950 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:20,950 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-19 04:13:20,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-19 04:13:20,951 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:20,951 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:20,952 INFO L85 PathProgramCache]: Analyzing trace with hash -1520884220, now seen corresponding path program 1 times [2023-11-19 04:13:20,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:20,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957152905] [2023-11-19 04:13:20,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:21,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-19 04:13:21,793 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:21,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957152905] [2023-11-19 04:13:21,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957152905] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:21,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:21,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:21,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950618272] [2023-11-19 04:13:21,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:21,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:21,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:21,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:21,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:21,796 INFO L87 Difference]: Start difference. First operand 9430 states and 13875 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2023-11-19 04:13:24,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-19 04:13:24,001 INFO L93 Difference]: Finished difference Result 22712 states and 33501 transitions. [2023-11-19 04:13:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-19 04:13:24,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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 268 [2023-11-19 04:13:24,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-19 04:13:24,090 INFO L225 Difference]: With dead ends: 22712 [2023-11-19 04:13:24,090 INFO L226 Difference]: Without dead ends: 13291 [2023-11-19 04:13:24,135 INFO L412 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 [2023-11-19 04:13:24,137 INFO L413 NwaCegarLoop]: 3400 mSDtfsCounter, 2036 mSDsluCounter, 1621 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2036 SdHoareTripleChecker+Valid, 5021 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-19 04:13:24,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2036 Valid, 5021 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-19 04:13:24,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13291 states. [2023-11-19 04:13:25,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13291 to 13285. [2023-11-19 04:13:25,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13285 states, 7454 states have (on average 1.2751542795814328) internal successors, (9505), 7794 states have internal predecessors, (9505), 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) [2023-11-19 04:13:25,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13285 states to 13285 states and 19582 transitions. [2023-11-19 04:13:25,532 INFO L78 Accepts]: Start accepts. Automaton has 13285 states and 19582 transitions. Word has length 268 [2023-11-19 04:13:25,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-19 04:13:25,533 INFO L495 AbstractCegarLoop]: Abstraction has 13285 states and 19582 transitions. [2023-11-19 04:13:25,533 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 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) [2023-11-19 04:13:25,534 INFO L276 IsEmpty]: Start isEmpty. Operand 13285 states and 19582 transitions. [2023-11-19 04:13:25,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2023-11-19 04:13:25,550 INFO L187 NwaCegarLoop]: Found error trace [2023-11-19 04:13:25,550 INFO L195 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] [2023-11-19 04:13:25,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-19 04:13:25,551 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-19 04:13:25,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:13:25,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1301949825, now seen corresponding path program 1 times [2023-11-19 04:13:25,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-19 04:13:25,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387401344] [2023-11-19 04:13:25,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-19 04:13:25,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:13:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:13:26,404 INFO L134 CoverageAnalysis]: Checked inductivity of 546 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2023-11-19 04:13:26,405 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-19 04:13:26,405 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387401344] [2023-11-19 04:13:26,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387401344] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-19 04:13:26,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-19 04:13:26,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-19 04:13:26,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793970101] [2023-11-19 04:13:26,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-19 04:13:26,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-19 04:13:26,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-19 04:13:26,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-19 04:13:26,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-19 04:13:26,413 INFO L87 Difference]: Start difference. First operand 13285 states and 19582 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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)