./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 0e0057cc 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_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/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_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91 --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 0.2.4-dev-0e0057c [2023-11-24 23:52:53,785 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:52:53,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-11-24 23:52:53,913 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:52:53,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 23:52:53,950 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:52:53,951 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 23:52:53,952 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 23:52:53,953 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:52:53,954 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 23:52:53,955 INFO L153 SettingsManager]: * User list type=DISABLED [2023-11-24 23:52:53,956 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-11-24 23:52:53,957 INFO L153 SettingsManager]: * Explicit value domain=true [2023-11-24 23:52:53,957 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-11-24 23:52:53,958 INFO L153 SettingsManager]: * Octagon Domain=false [2023-11-24 23:52:53,959 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-11-24 23:52:53,959 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-11-24 23:52:53,960 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-11-24 23:52:53,961 INFO L153 SettingsManager]: * Interval Domain=false [2023-11-24 23:52:53,962 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-11-24 23:52:53,962 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-11-24 23:52:53,963 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-11-24 23:52:53,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:52:53,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:52:53,966 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:52:53,966 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:52:53,967 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:52:53,967 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:52:53,968 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:52:53,968 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:52:53,969 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:52:53,969 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:52:53,970 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-24 23:52:53,971 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 23:52:53,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:52:53,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:52:53,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:52:53,994 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:52:53,995 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-11-24 23:52:53,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:52:53,995 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 23:52:53,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:52:53,996 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-11-24 23:52:53,996 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:52:53,997 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_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c76818fb304a0b40bd70831524c213fb48469a57ba59c902bf604bd33d1e93eb [2023-11-24 23:52:54,405 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:52:54,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:52:54,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:52:54,453 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:52:54,454 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:52:54,455 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-24 23:52:58,219 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:52:59,162 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:52:59,163 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-24 23:52:59,227 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/data/64219bd7d/762addf652874103b2c610d7474ef746/FLAGcc47b191c [2023-11-24 23:52:59,252 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/data/64219bd7d/762addf652874103b2c610d7474ef746 [2023-11-24 23:52:59,263 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:52:59,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:52:59,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:52:59,271 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:52:59,278 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:52:59,279 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:59" (1/1) ... [2023-11-24 23:52:59,280 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@693dd4d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:52:59, skipping insertion in model container [2023-11-24 23:52:59,281 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:52:59" (1/1) ... [2023-11-24 23:52:59,509 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:53:02,829 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_a861530e-7f8b-49af-a84e-510c9e29c67b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2023-11-24 23:53:02,834 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_a861530e-7f8b-49af-a84e-510c9e29c67b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2023-11-24 23:53:02,854 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:02,920 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:53:03,124 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] [2023-11-24 23:53:03,126 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] [2023-11-24 23:53:03,131 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] [2023-11-24 23:53:03,131 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] [2023-11-24 23:53:03,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "m" (__preempt_count)); [5315] [2023-11-24 23:53:03,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5318] [2023-11-24 23:53:03,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5321] [2023-11-24 23:53:03,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "m" (__preempt_count)); [5324] [2023-11-24 23:53:03,138 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5393] [2023-11-24 23:53:03,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outb %b0, %w1": : "a" (value), "Nd" (port)); [5439] [2023-11-24 23:53:03,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inb %w1, %b0": "=a" (value): "Nd" (port)); [5447] [2023-11-24 23:53:03,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outw %w0, %w1": : "a" (value), "Nd" (port)); [5454] [2023-11-24 23:53:03,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inw %w1, %w0": "=a" (value): "Nd" (port)); [5462] [2023-11-24 23:53:03,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("outl %0, %w1": : "a" (value), "Nd" (port)); [5469] [2023-11-24 23:53:03,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("inl %w1, %0": "=a" (value): "Nd" (port)); [5477] [2023-11-24 23:53:03,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; outsl": "+S" (addr), "+c" (count): "d" (port)); [5484] [2023-11-24 23:53:03,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; insl": "+D" (addr), "+c" (count): "d" (port)); [5491] [2023-11-24 23:53:03,150 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] [2023-11-24 23:53:03,152 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] [2023-11-24 23:53:03,526 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_a861530e-7f8b-49af-a84e-510c9e29c67b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315653,315666] [2023-11-24 23:53:03,527 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_a861530e-7f8b-49af-a84e-510c9e29c67b/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i[315798,315811] [2023-11-24 23:53:03,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:53:03,764 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:03,764 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:03,764 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 23:53:03,773 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:53:03,774 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03 WrapperNode [2023-11-24 23:53:03,774 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:53:03,776 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:03,776 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:53:03,776 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:53:03,785 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:03,904 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,287 INFO L138 Inliner]: procedures = 390, calls = 1919, calls flagged for inlining = 177, calls inlined = 157, statements flattened = 5152 [2023-11-24 23:53:04,288 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:53:04,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:53:04,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:53:04,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:53:04,300 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,328 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,507 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,551 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,646 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:53:04,647 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:53:04,647 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:53:04,647 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:53:04,648 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (1/1) ... [2023-11-24 23:53:04,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 23:53:04,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/z3 [2023-11-24 23:53:04,692 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 23:53:04,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a861530e-7f8b-49af-a84e-510c9e29c67b/bin/utaipan-verify-SwPr7d2a91/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 23:53:04,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-11-24 23:53:04,744 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-11-24 23:53:04,744 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2023-11-24 23:53:04,746 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2023-11-24 23:53:04,746 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_89 [2023-11-24 23:53:04,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_89 [2023-11-24 23:53:04,747 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-11-24 23:53:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-11-24 23:53:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-11-24 23:53:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-11-24 23:53:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure dev_trans_start [2023-11-24 23:53:04,748 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_trans_start [2023-11-24 23:53:04,748 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_open [2023-11-24 23:53:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_open [2023-11-24 23:53:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_load_eeprom [2023-11-24 23:53:04,749 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_load_eeprom [2023-11-24 23:53:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-11-24 23:53:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-24 23:53:04,749 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_sense_lan [2023-11-24 23:53:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_sense_lan [2023-11-24 23:53:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-11-24 23:53:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-11-24 23:53:04,750 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx [2023-11-24 23:53:04,750 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx [2023-11-24 23:53:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-11-24 23:53:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-11-24 23:53:04,751 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-11-24 23:53:04,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-11-24 23:53:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2023-11-24 23:53:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2023-11-24 23:53:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 23:53:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-11-24 23:53:04,752 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-11-24 23:53:04,752 INFO L130 BoogieDeclarations]: Found specification of procedure pci_write_config_word [2023-11-24 23:53:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_write_config_word [2023-11-24 23:53:04,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_103 [2023-11-24 23:53:04,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_103 [2023-11-24 23:53:04,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-11-24 23:53:04,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-11-24 23:53:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_cascade_reset [2023-11-24 23:53:04,755 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_cascade_reset [2023-11-24 23:53:04,755 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-24 23:53:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-11-24 23:53:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-11-24 23:53:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-24 23:53:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-11-24 23:53:04,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-11-24 23:53:04,756 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 23:53:04,757 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-11-24 23:53:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-11-24 23:53:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-11-24 23:53:04,758 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-11-24 23:53:04,758 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rx_bm [2023-11-24 23:53:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rx_bm [2023-11-24 23:53:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_BM_shutdown [2023-11-24 23:53:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_BM_shutdown [2023-11-24 23:53:04,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-11-24 23:53:04,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-11-24 23:53:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-11-24 23:53:04,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-11-24 23:53:04,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-11-24 23:53:04,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-11-24 23:53:04,761 INFO L130 BoogieDeclarations]: Found specification of procedure wait [2023-11-24 23:53:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure wait [2023-11-24 23:53:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2023-11-24 23:53:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2023-11-24 23:53:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_hwinit [2023-11-24 23:53:04,762 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_hwinit [2023-11-24 23:53:04,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2023-11-24 23:53:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2023-11-24 23:53:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure virt_to_whatever [2023-11-24 23:53:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure virt_to_whatever [2023-11-24 23:53:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_close [2023-11-24 23:53:04,763 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_close [2023-11-24 23:53:04,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-24 23:53:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_stop_interface [2023-11-24 23:53:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_stop_interface [2023-11-24 23:53:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_check_lan [2023-11-24 23:53:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_check_lan [2023-11-24 23:53:04,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-11-24 23:53:04,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-11-24 23:53:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:53:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-11-24 23:53:04,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-11-24 23:53:04,765 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-11-24 23:53:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-11-24 23:53:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-24 23:53:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-11-24 23:53:04,766 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:53:04,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-11-24 23:53:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:53:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-11-24 23:53:04,767 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:53:04,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-11-24 23:53:04,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-11-24 23:53:04,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-11-24 23:53:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-11-24 23:53:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-11-24 23:53:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_rxfill [2023-11-24 23:53:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_rxfill [2023-11-24 23:53:04,769 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-11-24 23:53:04,769 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-11-24 23:53:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-11-24 23:53:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-11-24 23:53:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-11-24 23:53:04,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-11-24 23:53:04,770 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:53:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:53:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_update_stats [2023-11-24 23:53:04,771 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_update_stats [2023-11-24 23:53:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-24 23:53:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-24 23:53:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-11-24 23:53:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-11-24 23:53:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2023-11-24 23:53:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2023-11-24 23:53:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-24 23:53:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-24 23:53:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2023-11-24 23:53:04,774 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2023-11-24 23:53:04,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 23:53:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-24 23:53:04,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-24 23:53:04,776 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-11-24 23:53:04,779 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-11-24 23:53:04,779 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:53:04,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-11-24 23:53:04,780 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2023-11-24 23:53:04,781 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2023-11-24 23:53:04,781 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-11-24 23:53:04,782 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-11-24 23:53:04,783 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2023-11-24 23:53:04,783 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2023-11-24 23:53:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-11-24 23:53:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-11-24 23:53:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2023-11-24 23:53:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2023-11-24 23:53:04,789 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_pci_remove [2023-11-24 23:53:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_pci_remove [2023-11-24 23:53:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_build_rx_pdl [2023-11-24 23:53:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_build_rx_pdl [2023-11-24 23:53:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-11-24 23:53:04,790 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-11-24 23:53:04,790 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-11-24 23:53:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-11-24 23:53:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2023-11-24 23:53:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2023-11-24 23:53:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-24 23:53:04,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_hp100_private [2023-11-24 23:53:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 23:53:04,791 INFO L130 BoogieDeclarations]: Found specification of procedure eth_type_trans [2023-11-24 23:53:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_type_trans [2023-11-24 23:53:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-11-24 23:53:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-11-24 23:53:04,792 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-24 23:53:04,792 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_hp100_private [2023-11-24 23:53:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_timeout_interruptible [2023-11-24 23:53:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_timeout_interruptible [2023-11-24 23:53:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-11-24 23:53:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-11-24 23:53:04,793 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-11-24 23:53:04,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-11-24 23:53:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_set_multicast_list [2023-11-24 23:53:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_set_multicast_list [2023-11-24 23:53:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_start_interface [2023-11-24 23:53:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_start_interface [2023-11-24 23:53:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2023-11-24 23:53:04,794 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2023-11-24 23:53:04,794 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_clean_txring [2023-11-24 23:53:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_clean_txring [2023-11-24 23:53:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2023-11-24 23:53:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2023-11-24 23:53:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:53:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2023-11-24 23:53:04,795 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2023-11-24 23:53:04,795 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-11-24 23:53:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-11-24 23:53:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure hp100_login_to_vg_hub [2023-11-24 23:53:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure hp100_login_to_vg_hub [2023-11-24 23:53:04,796 INFO L130 BoogieDeclarations]: Found specification of procedure preempt_count [2023-11-24 23:53:04,796 INFO L138 BoogieDeclarations]: Found implementation of procedure preempt_count [2023-11-24 23:53:05,697 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:53:05,702 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:53:06,056 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-11-24 23:53:09,999 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-11-24 23:53:10,001 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-24 23:53:10,499 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564: assume 2096896 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet788#1 := ~tmp___4~7#1; [2023-11-24 23:53:10,499 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564: assume !(2096896 == ~tmp___4~7#1 % 18446744073709551616);assume #t~nondet788#1 % 18446744073709551616 <= ~tmp___4~7#1 % 18446744073709551616;assume #t~nondet788#1 % 18446744073709551616 <= 2096896; [2023-11-24 23:53:10,499 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-2: assume 0 == #t~nondet788#1 % 18446744073709551616;havoc #t~nondet788#1; [2023-11-24 23:53:10,500 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8564-2: assume !(0 == #t~nondet788#1 % 18446744073709551616);havoc #t~nondet788#1; [2023-11-24 23:53:10,500 INFO L775 $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; [2023-11-24 23:53:10,500 INFO L775 $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); [2023-11-24 23:53:10,500 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566-1: assume -9223372036854775808 <= #t~ret789#1 && #t~ret789#1 <= 9223372036854775807;havoc #t~ret789#1; [2023-11-24 23:53:10,501 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint L8566: SUMMARY for call #t~ret789#1 := schedule_timeout_interruptible(1); srcloc: null [2023-11-24 23:53:10,501 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##30: assume !(0 == ~tmp___4~7#1 % 18446744073709551616); [2023-11-24 23:53:10,501 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##29: assume 0 == ~tmp___4~7#1 % 18446744073709551616;#t~nondet788#1 := 0; [2023-11-24 23:53:10,795 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:53:14,081 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:53:14,081 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 23:53:14,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:14 BoogieIcfgContainer [2023-11-24 23:53:14,085 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:53:14,089 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 23:53:14,089 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 23:53:14,093 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 23:53:14,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 11:52:59" (1/3) ... [2023-11-24 23:53:14,097 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340f9215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:14, skipping insertion in model container [2023-11-24 23:53:14,097 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:53:03" (2/3) ... [2023-11-24 23:53:14,098 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@340f9215 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 11:53:14, skipping insertion in model container [2023-11-24 23:53:14,098 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:53:14" (3/3) ... [2023-11-24 23:53:14,100 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-hp-hp100.cil.i [2023-11-24 23:53:14,127 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 23:53:14,127 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-24 23:53:14,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-24 23:53:14,283 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;@11395abc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 23:53:14,283 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-24 23:53:14,300 INFO L276 IsEmpty]: Start isEmpty. Operand has 1563 states, 871 states have (on average 1.2927669345579793) internal successors, (1126), 909 states have internal predecessors, (1126), 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) [2023-11-24 23:53:14,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-24 23:53:14,358 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:14,359 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, 1, 1] [2023-11-24 23:53:14,360 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:14,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:14,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1540202674, now seen corresponding path program 1 times [2023-11-24 23:53:14,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:14,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53553188] [2023-11-24 23:53:14,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:14,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:15,407 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-24 23:53:15,408 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:15,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53553188] [2023-11-24 23:53:15,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53553188] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:15,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:15,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:15,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911380731] [2023-11-24 23:53:15,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:15,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:15,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:15,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:15,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:15,463 INFO L87 Difference]: Start difference. First operand has 1563 states, 871 states have (on average 1.2927669345579793) internal successors, (1126), 909 states have internal predecessors, (1126), 612 states have call successors, (612), 81 states have call predecessors, (612), 80 states have return successors, (607), 594 states have call predecessors, (607), 607 states have call successors, (607) Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-24 23:53:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:17,784 INFO L93 Difference]: Finished difference Result 4479 states and 6788 transitions. [2023-11-24 23:53:17,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:53:17,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 105 [2023-11-24 23:53:17,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:17,845 INFO L225 Difference]: With dead ends: 4479 [2023-11-24 23:53:17,845 INFO L226 Difference]: Without dead ends: 2847 [2023-11-24 23:53:17,869 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 [2023-11-24 23:53:17,874 INFO L413 NwaCegarLoop]: 2395 mSDtfsCounter, 2094 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 580 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 580 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:17,875 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 4416 Invalid, 586 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6 Valid, 580 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-11-24 23:53:17,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2847 states. [2023-11-24 23:53:18,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2847 to 2843. [2023-11-24 23:53:18,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2843 states, 1580 states have (on average 1.289873417721519) internal successors, (2038), 1649 states have internal predecessors, (2038), 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) [2023-11-24 23:53:18,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2843 states to 2843 states and 4273 transitions. [2023-11-24 23:53:18,420 INFO L78 Accepts]: Start accepts. Automaton has 2843 states and 4273 transitions. Word has length 105 [2023-11-24 23:53:18,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:18,421 INFO L495 AbstractCegarLoop]: Abstraction has 2843 states and 4273 transitions. [2023-11-24 23:53:18,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2023-11-24 23:53:18,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2843 states and 4273 transitions. [2023-11-24 23:53:18,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2023-11-24 23:53:18,460 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:18,462 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, 1, 1] [2023-11-24 23:53:18,462 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 23:53:18,463 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:18,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:18,464 INFO L85 PathProgramCache]: Analyzing trace with hash -1049904829, now seen corresponding path program 1 times [2023-11-24 23:53:18,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:18,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823822262] [2023-11-24 23:53:18,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:18,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:19,263 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-24 23:53:19,263 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:19,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823822262] [2023-11-24 23:53:19,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823822262] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:19,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:19,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:19,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618109894] [2023-11-24 23:53:19,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:19,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:19,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:19,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:19,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:19,276 INFO L87 Difference]: Start difference. First operand 2843 states and 4273 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-24 23:53:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:21,484 INFO L93 Difference]: Finished difference Result 7313 states and 10958 transitions. [2023-11-24 23:53:21,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:53:21,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 158 [2023-11-24 23:53:21,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:21,533 INFO L225 Difference]: With dead ends: 7313 [2023-11-24 23:53:21,533 INFO L226 Difference]: Without dead ends: 4479 [2023-11-24 23:53:21,555 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 [2023-11-24 23:53:21,557 INFO L413 NwaCegarLoop]: 2032 mSDtfsCounter, 1300 mSDsluCounter, 1967 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1300 SdHoareTripleChecker+Valid, 3999 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:21,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1300 Valid, 3999 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-24 23:53:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4479 states. [2023-11-24 23:53:22,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4479 to 4475. [2023-11-24 23:53:22,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4475 states, 2516 states have (on average 1.2869634340222575) internal successors, (3238), 2625 states have internal predecessors, (3238), 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) [2023-11-24 23:53:22,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4475 states to 4475 states and 6665 transitions. [2023-11-24 23:53:22,137 INFO L78 Accepts]: Start accepts. Automaton has 4475 states and 6665 transitions. Word has length 158 [2023-11-24 23:53:22,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:22,138 INFO L495 AbstractCegarLoop]: Abstraction has 4475 states and 6665 transitions. [2023-11-24 23:53:22,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 3 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2023-11-24 23:53:22,139 INFO L276 IsEmpty]: Start isEmpty. Operand 4475 states and 6665 transitions. [2023-11-24 23:53:22,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-11-24 23:53:22,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:22,166 INFO L195 NwaCegarLoop]: trace histogram [11, 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] [2023-11-24 23:53:22,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-24 23:53:22,167 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:22,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:22,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1930223601, now seen corresponding path program 1 times [2023-11-24 23:53:22,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:22,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355688707] [2023-11-24 23:53:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:22,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:22,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:22,593 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-11-24 23:53:22,593 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:22,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355688707] [2023-11-24 23:53:22,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355688707] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:22,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:22,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:22,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030908218] [2023-11-24 23:53:22,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:22,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:22,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:22,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:22,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:22,603 INFO L87 Difference]: Start difference. First operand 4475 states and 6665 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-24 23:53:25,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:25,011 INFO L93 Difference]: Finished difference Result 11905 states and 17677 transitions. [2023-11-24 23:53:25,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:53:25,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 210 [2023-11-24 23:53:25,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:25,105 INFO L225 Difference]: With dead ends: 11905 [2023-11-24 23:53:25,105 INFO L226 Difference]: Without dead ends: 7439 [2023-11-24 23:53:25,146 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 [2023-11-24 23:53:25,151 INFO L413 NwaCegarLoop]: 2009 mSDtfsCounter, 2056 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 3962 SdHoareTripleChecker+Invalid, 572 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:25,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 3962 Invalid, 572 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-24 23:53:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7439 states. [2023-11-24 23:53:25,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7439 to 7434. [2023-11-24 23:53:25,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7434 states, 4194 states have (on average 1.2789699570815452) internal successors, (5364), 4374 states have internal predecessors, (5364), 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) [2023-11-24 23:53:25,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7434 states to 7434 states and 11001 transitions. [2023-11-24 23:53:25,969 INFO L78 Accepts]: Start accepts. Automaton has 7434 states and 11001 transitions. Word has length 210 [2023-11-24 23:53:25,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:25,969 INFO L495 AbstractCegarLoop]: Abstraction has 7434 states and 11001 transitions. [2023-11-24 23:53:25,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (45), 2 states have call predecessors, (45), 1 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2023-11-24 23:53:25,970 INFO L276 IsEmpty]: Start isEmpty. Operand 7434 states and 11001 transitions. [2023-11-24 23:53:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2023-11-24 23:53:25,982 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:25,982 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, 1, 1] [2023-11-24 23:53:25,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-24 23:53:25,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:25,983 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:25,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1069569171, now seen corresponding path program 1 times [2023-11-24 23:53:25,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:25,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232571744] [2023-11-24 23:53:25,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:25,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:26,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:26,402 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2023-11-24 23:53:26,403 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:26,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232571744] [2023-11-24 23:53:26,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232571744] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:26,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:26,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:26,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624151375] [2023-11-24 23:53:26,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:26,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:26,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:26,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:26,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:26,406 INFO L87 Difference]: Start difference. First operand 7434 states and 11001 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2023-11-24 23:53:29,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:29,025 INFO L93 Difference]: Finished difference Result 16919 states and 24986 transitions. [2023-11-24 23:53:29,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:53:29,026 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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 203 [2023-11-24 23:53:29,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:29,112 INFO L225 Difference]: With dead ends: 16919 [2023-11-24 23:53:29,113 INFO L226 Difference]: Without dead ends: 9494 [2023-11-24 23:53:29,156 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 [2023-11-24 23:53:29,157 INFO L413 NwaCegarLoop]: 3132 mSDtfsCounter, 1309 mSDsluCounter, 1959 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1309 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:29,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1309 Valid, 5091 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-11-24 23:53:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9494 states. [2023-11-24 23:53:29,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9494 to 9488. [2023-11-24 23:53:29,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9488 states, 5396 states have (on average 1.2753891771682728) internal successors, (6882), 5625 states have internal predecessors, (6882), 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) [2023-11-24 23:53:29,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9488 states to 9488 states and 13933 transitions. [2023-11-24 23:53:30,002 INFO L78 Accepts]: Start accepts. Automaton has 9488 states and 13933 transitions. Word has length 203 [2023-11-24 23:53:30,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:30,003 INFO L495 AbstractCegarLoop]: Abstraction has 9488 states and 13933 transitions. [2023-11-24 23:53:30,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2023-11-24 23:53:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 9488 states and 13933 transitions. [2023-11-24 23:53:30,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2023-11-24 23:53:30,018 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:30,018 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, 1, 1] [2023-11-24 23:53:30,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-24 23:53:30,019 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:30,019 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:30,019 INFO L85 PathProgramCache]: Analyzing trace with hash 832642659, now seen corresponding path program 1 times [2023-11-24 23:53:30,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:30,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948798303] [2023-11-24 23:53:30,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:30,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:30,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 378 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-11-24 23:53:30,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:30,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948798303] [2023-11-24 23:53:30,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948798303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:30,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:30,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:30,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955603074] [2023-11-24 23:53:30,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:30,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:30,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:30,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:30,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:30,520 INFO L87 Difference]: Start difference. First operand 9488 states and 13933 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-24 23:53:32,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-24 23:53:32,434 INFO L93 Difference]: Finished difference Result 19021 states and 27937 transitions. [2023-11-24 23:53:32,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 23:53:32,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 266 [2023-11-24 23:53:32,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-24 23:53:32,516 INFO L225 Difference]: With dead ends: 19021 [2023-11-24 23:53:32,516 INFO L226 Difference]: Without dead ends: 9542 [2023-11-24 23:53:32,563 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 [2023-11-24 23:53:32,564 INFO L413 NwaCegarLoop]: 2001 mSDtfsCounter, 7 mSDsluCounter, 1996 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 3997 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-24 23:53:32,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 3997 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-24 23:53:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9542 states. [2023-11-24 23:53:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9542 to 9494. [2023-11-24 23:53:33,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9494 states, 5402 states have (on average 1.2750833024805628) internal successors, (6888), 5631 states have internal predecessors, (6888), 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) [2023-11-24 23:53:33,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9494 states to 9494 states and 13939 transitions. [2023-11-24 23:53:33,540 INFO L78 Accepts]: Start accepts. Automaton has 9494 states and 13939 transitions. Word has length 266 [2023-11-24 23:53:33,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-24 23:53:33,542 INFO L495 AbstractCegarLoop]: Abstraction has 9494 states and 13939 transitions. [2023-11-24 23:53:33,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 2 states have call successors, (37), 2 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-11-24 23:53:33,543 INFO L276 IsEmpty]: Start isEmpty. Operand 9494 states and 13939 transitions. [2023-11-24 23:53:33,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2023-11-24 23:53:33,560 INFO L187 NwaCegarLoop]: Found error trace [2023-11-24 23:53:33,560 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, 1, 1] [2023-11-24 23:53:33,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-24 23:53:33,561 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-24 23:53:33,561 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:53:33,562 INFO L85 PathProgramCache]: Analyzing trace with hash 90929435, now seen corresponding path program 1 times [2023-11-24 23:53:33,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-11-24 23:53:33,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649081501] [2023-11-24 23:53:33,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 23:53:33,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:53:33,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:53:34,444 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 357 trivial. 0 not checked. [2023-11-24 23:53:34,444 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-11-24 23:53:34,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649081501] [2023-11-24 23:53:34,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649081501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 23:53:34,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 23:53:34,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-24 23:53:34,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043650047] [2023-11-24 23:53:34,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 23:53:34,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 23:53:34,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-11-24 23:53:34,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 23:53:34,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 23:53:34,449 INFO L87 Difference]: Start difference. First operand 9494 states and 13939 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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)