./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.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_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh --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 c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 19:10:20,824 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 19:10:20,901 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 19:10:20,908 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 19:10:20,909 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 19:10:20,939 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 19:10:20,940 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 19:10:20,940 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 19:10:20,941 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 19:10:20,942 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 19:10:20,942 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 19:10:20,943 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 19:10:20,943 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 19:10:20,944 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 19:10:20,945 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 19:10:20,945 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 19:10:20,946 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 19:10:20,946 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 19:10:20,947 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 19:10:20,947 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 19:10:20,948 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 19:10:20,949 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 19:10:20,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 19:10:20,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 19:10:20,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 19:10:20,951 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 19:10:20,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 19:10:20,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 19:10:20,952 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 19:10:20,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 19:10:20,953 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 19:10:20,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 19:10:20,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 19:10:20,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 19:10:20,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:10:20,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 19:10:20,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 19:10:20,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 19:10:20,956 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 19:10:20,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 19:10:20,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 19:10:20,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 19:10:20,957 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 19:10:20,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 19:10:20,957 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_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c097d45bf953c22cc618c35d7b4a2d8fd3613a03309b6d0b505b710dc0ccbe6f [2023-12-02 19:10:21,188 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 19:10:21,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 19:10:21,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 19:10:21,217 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 19:10:21,218 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 19:10:21,219 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2023-12-02 19:10:24,021 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 19:10:24,519 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 19:10:24,520 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2023-12-02 19:10:24,564 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/data/58c0a124e/a17fb388cd004d9ca7eef830dbdf0210/FLAGffd056cc7 [2023-12-02 19:10:24,576 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/data/58c0a124e/a17fb388cd004d9ca7eef830dbdf0210 [2023-12-02 19:10:24,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 19:10:24,579 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 19:10:24,580 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 19:10:24,580 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 19:10:24,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 19:10:24,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:10:24" (1/1) ... [2023-12-02 19:10:24,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38e03455 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:24, skipping insertion in model container [2023-12-02 19:10:24,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:10:24" (1/1) ... [2023-12-02 19:10:24,758 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 19:10:27,307 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_7af1fe8e-61f6-4647-be12-e26637f928da/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2023-12-02 19:10:27,311 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_7af1fe8e-61f6-4647-be12-e26637f928da/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2023-12-02 19:10:27,326 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:10:27,363 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 19:10:27,526 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"); [5296] [2023-12-02 19:10:27,528 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)); [5303] [2023-12-02 19:10:27,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [5310] [2023-12-02 19:10:27,532 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)); [5365-5366] [2023-12-02 19:10:27,532 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"); [5371-5373] [2023-12-02 19:10:27,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movb %1,%0": "=q" (ret): "m" (*((unsigned char volatile *)addr)): "memory"); [5478] [2023-12-02 19:10:27,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %1,%0": "=r" (ret): "m" (*((unsigned int volatile *)addr)): "memory"); [5486] [2023-12-02 19:10:27,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("movl %0,%1": : "r" (val), "m" (*((unsigned int volatile *)addr)): "memory"); [5493] [2023-12-02 19:10:27,542 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)); [5606-5607] [2023-12-02 19:10:27,544 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)); [5640-5641] [2023-12-02 19:10:27,546 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" (79), "i" (12UL)); [5681-5682] [2023-12-02 19:10:27,547 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" (91), "i" (12UL)); [5710-5711] [2023-12-02 19:10:27,548 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" (103), "i" (12UL)); [5747-5748] [2023-12-02 19:10:27,550 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" (115), "i" (12UL)); [5784-5785] [2023-12-02 19:10:27,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [6722] [2023-12-02 19:10:27,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7493] [2023-12-02 19:10:27,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7503] [2023-12-02 19:10:27,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [7518] [2023-12-02 19:10:27,649 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8304] [2023-12-02 19:10:27,651 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8337] [2023-12-02 19:10:27,652 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8360] [2023-12-02 19:10:27,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8601] [2023-12-02 19:10:27,663 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8631] [2023-12-02 19:10:27,664 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("sfence": : : "memory"); [8644] [2023-12-02 19:10:27,780 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_7af1fe8e-61f6-4647-be12-e26637f928da/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348277,348290] [2023-12-02 19:10:27,780 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_7af1fe8e-61f6-4647-be12-e26637f928da/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i[348422,348435] [2023-12-02 19:10:27,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 19:10:27,974 WARN L675 CHandler]: The function strncmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:10:27,974 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 19:10:27,982 INFO L206 MainTranslator]: Completed translation [2023-12-02 19:10:27,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27 WrapperNode [2023-12-02 19:10:27,982 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 19:10:27,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 19:10:27,983 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 19:10:27,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 19:10:27,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,063 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,270 INFO L138 Inliner]: procedures = 444, calls = 2249, calls flagged for inlining = 215, calls inlined = 200, statements flattened = 6314 [2023-12-02 19:10:28,271 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 19:10:28,272 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 19:10:28,272 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 19:10:28,272 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 19:10:28,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,282 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,420 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,447 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,471 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,522 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 19:10:28,523 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 19:10:28,523 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 19:10:28,523 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 19:10:28,524 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (1/1) ... [2023-12-02 19:10:28,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 19:10:28,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:10:28,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 19:10:28,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 19:10:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure strncmp [2023-12-02 19:10:28,596 INFO L130 BoogieDeclarations]: Found specification of procedure BB_GET_BIT2 [2023-12-02 19:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_GET_BIT2 [2023-12-02 19:10:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure alloc_skb [2023-12-02 19:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure alloc_skb [2023-12-02 19:10:28,597 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2023-12-02 19:10:28,597 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2023-12-02 19:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 19:10:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 19:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_open [2023-12-02 19:10:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_open [2023-12-02 19:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_poll_stop [2023-12-02 19:10:28,598 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_poll_stop [2023-12-02 19:10:28,598 INFO L130 BoogieDeclarations]: Found specification of procedure is_quattro_p [2023-12-02 19:10:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure is_quattro_p [2023-12-02 19:10:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2023-12-02 19:10:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2023-12-02 19:10:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_close [2023-12-02 19:10:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_close [2023-12-02 19:10:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 19:10:28,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 19:10:28,599 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2023-12-02 19:10:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2023-12-02 19:10:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_87 [2023-12-02 19:10:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_87 [2023-12-02 19:10:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_set_multicast [2023-12-02 19:10:28,600 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_set_multicast [2023-12-02 19:10:28,600 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2023-12-02 19:10:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2023-12-02 19:10:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure BB_PUT_BIT [2023-12-02 19:10:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure BB_PUT_BIT [2023-12-02 19:10:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2023-12-02 19:10:28,601 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2023-12-02 19:10:28,601 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_begin_auto_negotiation [2023-12-02 19:10:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_begin_auto_negotiation [2023-12-02 19:10:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_get_counters [2023-12-02 19:10:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_get_counters [2023-12-02 19:10:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_happy_lock_of_happy_meal [2023-12-02 19:10:28,602 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_happy_lock_of_happy_meal [2023-12-02 19:10:28,602 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 19:10:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 19:10:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 19:10:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2023-12-02 19:10:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2023-12-02 19:10:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2023-12-02 19:10:28,603 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2023-12-02 19:10:28,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_del_timer [2023-12-02 19:10:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_del_timer [2023-12-02 19:10:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2023-12-02 19:10:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2023-12-02 19:10:28,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 19:10:28,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 19:10:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 19:10:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2023-12-02 19:10:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2023-12-02 19:10:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2023-12-02 19:10:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_happy_lock_of_happy_meal [2023-12-02 19:10:28,605 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2023-12-02 19:10:28,605 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2023-12-02 19:10:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 19:10:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2023-12-02 19:10:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2023-12-02 19:10:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 19:10:28,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 19:10:28,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 19:10:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 19:10:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2023-12-02 19:10:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2023-12-02 19:10:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 19:10:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 19:10:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2023-12-02 19:10:28,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2023-12-02 19:10:28,607 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2023-12-02 19:10:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2023-12-02 19:10:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 19:10:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 19:10:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 19:10:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 19:10:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure set_happy_link_modes [2023-12-02 19:10:28,608 INFO L138 BoogieDeclarations]: Found implementation of procedure set_happy_link_modes [2023-12-02 19:10:28,608 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_reset [2023-12-02 19:10:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_reset [2023-12-02 19:10:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 19:10:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-12-02 19:10:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-12-02 19:10:28,609 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-12-02 19:10:28,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-12-02 19:10:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tx_timeout [2023-12-02 19:10:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tx_timeout [2023-12-02 19:10:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2023-12-02 19:10:28,610 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2023-12-02 19:10:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 19:10:28,610 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_read [2023-12-02 19:10:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_read [2023-12-02 19:10:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 19:10:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 19:10:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2023-12-02 19:10:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2023-12-02 19:10:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 19:10:28,611 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:10:28,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2023-12-02 19:10:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:10:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2023-12-02 19:10:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-12-02 19:10:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-12-02 19:10:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-12-02 19:10:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-12-02 19:10:28,612 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-12-02 19:10:28,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~TO~VOID [2023-12-02 19:10:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2023-12-02 19:10:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2023-12-02 19:10:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2023-12-02 19:10:28,613 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2023-12-02 19:10:28,613 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2023-12-02 19:10:28,614 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2023-12-02 19:10:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2023-12-02 19:10:28,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2023-12-02 19:10:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2023-12-02 19:10:28,614 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2023-12-02 19:10:28,614 INFO L130 BoogieDeclarations]: Found specification of procedure is_lucent_phy [2023-12-02 19:10:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure is_lucent_phy [2023-12-02 19:10:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 19:10:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 19:10:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure hme_read_desc32 [2023-12-02 19:10:28,615 INFO L138 BoogieDeclarations]: Found implementation of procedure hme_read_desc32 [2023-12-02 19:10:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-12-02 19:10:28,616 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-12-02 19:10:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 19:10:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_clean_rings [2023-12-02 19:10:28,616 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_clean_rings [2023-12-02 19:10:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 19:10:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 19:10:28,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 19:10:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-12-02 19:10:28,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2023-12-02 19:10:28,617 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2023-12-02 19:10:28,618 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2023-12-02 19:10:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2023-12-02 19:10:28,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2023-12-02 19:10:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2023-12-02 19:10:28,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_happy_meal_exit_14_2 [2023-12-02 19:10:28,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 19:10:28,618 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 19:10:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2023-12-02 19:10:28,619 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2023-12-02 19:10:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2023-12-02 19:10:28,619 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2023-12-02 19:10:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_unmap_page [2023-12-02 19:10:28,619 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_unmap_page [2023-12-02 19:10:28,619 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2023-12-02 19:10:28,620 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2023-12-02 19:10:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 19:10:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 19:10:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2023-12-02 19:10:28,620 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2023-12-02 19:10:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_86 [2023-12-02 19:10:28,620 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_86 [2023-12-02 19:10:28,620 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 19:10:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 19:10:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 19:10:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-12-02 19:10:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2023-12-02 19:10:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_stop [2023-12-02 19:10:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_stop [2023-12-02 19:10:28,621 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2023-12-02 19:10:28,621 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2023-12-02 19:10:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 19:10:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 19:10:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2023-12-02 19:10:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2023-12-02 19:10:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_pci_remove [2023-12-02 19:10:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_pci_remove [2023-12-02 19:10:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_init [2023-12-02 19:10:28,622 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_init [2023-12-02 19:10:28,622 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2023-12-02 19:10:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2023-12-02 19:10:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2023-12-02 19:10:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2023-12-02 19:10:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_tcvr_write [2023-12-02 19:10:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_tcvr_write [2023-12-02 19:10:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 19:10:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 19:10:28,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 19:10:28,623 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2023-12-02 19:10:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2023-12-02 19:10:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 19:10:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 19:10:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-12-02 19:10:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~dma_addr_t~0~X~int~X~int~X~$Pointer$~TO~VOID [2023-12-02 19:10:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed [2023-12-02 19:10:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed [2023-12-02 19:10:28,624 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2023-12-02 19:10:28,624 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2023-12-02 19:10:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 19:10:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_page [2023-12-02 19:10:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_page [2023-12-02 19:10:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 19:10:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 19:10:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2023-12-02 19:10:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2023-12-02 19:10:28,625 INFO L130 BoogieDeclarations]: Found specification of procedure happy_meal_transceiver_check [2023-12-02 19:10:28,625 INFO L138 BoogieDeclarations]: Found implementation of procedure happy_meal_transceiver_check [2023-12-02 19:10:29,492 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 19:10:29,497 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 19:10:30,115 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 19:10:33,715 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-12-02 19:10:33,968 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 19:10:37,142 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 19:10:37,143 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-02 19:10:37,145 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:10:37 BoogieIcfgContainer [2023-12-02 19:10:37,145 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 19:10:37,148 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 19:10:37,148 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 19:10:37,152 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 19:10:37,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 07:10:24" (1/3) ... [2023-12-02 19:10:37,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@883f720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:10:37, skipping insertion in model container [2023-12-02 19:10:37,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:10:27" (2/3) ... [2023-12-02 19:10:37,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@883f720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 07:10:37, skipping insertion in model container [2023-12-02 19:10:37,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:10:37" (3/3) ... [2023-12-02 19:10:37,155 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-sun-sunhme.cil.i [2023-12-02 19:10:37,178 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 19:10:37,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 19:10:37,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 19:10:37,294 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;@60cb0a0e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 19:10:37,294 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 19:10:37,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 1780 states, 1049 states have (on average 1.2964728312678742) internal successors, (1360), 1081 states have internal predecessors, (1360), 639 states have call successors, (639), 92 states have call predecessors, (639), 91 states have return successors, (633), 622 states have call predecessors, (633), 633 states have call successors, (633) [2023-12-02 19:10:37,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2023-12-02 19:10:37,357 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:37,358 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 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] [2023-12-02 19:10:37,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:10:37,364 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:37,364 INFO L85 PathProgramCache]: Analyzing trace with hash 736412569, now seen corresponding path program 1 times [2023-12-02 19:10:37,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:10:37,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917352855] [2023-12-02 19:10:37,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:37,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:10:37,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2023-12-02 19:10:38,219 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:10:38,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917352855] [2023-12-02 19:10:38,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917352855] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:10:38,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:10:38,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:10:38,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522456852] [2023-12-02 19:10:38,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:10:38,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:10:38,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:10:38,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:10:38,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:38,260 INFO L87 Difference]: Start difference. First operand has 1780 states, 1049 states have (on average 1.2964728312678742) internal successors, (1360), 1081 states have internal predecessors, (1360), 639 states have call successors, (639), 92 states have call predecessors, (639), 91 states have return successors, (633), 622 states have call predecessors, (633), 633 states have call successors, (633) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 19:10:41,283 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:43,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:45,869 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:47,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:47,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:10:47,447 INFO L93 Difference]: Finished difference Result 5068 states and 7537 transitions. [2023-12-02 19:10:47,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:10:47,450 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 146 [2023-12-02 19:10:47,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:10:47,493 INFO L225 Difference]: With dead ends: 5068 [2023-12-02 19:10:47,493 INFO L226 Difference]: Without dead ends: 3212 [2023-12-02 19:10:47,510 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 [2023-12-02 19:10:47,514 INFO L413 NwaCegarLoop]: 2661 mSDtfsCounter, 2261 mSDsluCounter, 2273 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 6 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2261 SdHoareTripleChecker+Valid, 4934 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.9s IncrementalHoareTripleChecker+Time [2023-12-02 19:10:47,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2261 Valid, 4934 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 721 Invalid, 2 Unknown, 0 Unchecked, 8.9s Time] [2023-12-02 19:10:47,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2023-12-02 19:10:47,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 3208. [2023-12-02 19:10:47,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 1890 states have (on average 1.2925925925925925) internal successors, (2443), 1953 states have internal predecessors, (2443), 1141 states have call successors, (1141), 177 states have call predecessors, (1141), 176 states have return successors, (1154), 1115 states have call predecessors, (1154), 1141 states have call successors, (1154) [2023-12-02 19:10:47,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 4738 transitions. [2023-12-02 19:10:47,856 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 4738 transitions. Word has length 146 [2023-12-02 19:10:47,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:10:47,857 INFO L495 AbstractCegarLoop]: Abstraction has 3208 states and 4738 transitions. [2023-12-02 19:10:47,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2023-12-02 19:10:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 4738 transitions. [2023-12-02 19:10:47,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2023-12-02 19:10:47,867 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:47,867 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:10:47,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 19:10:47,868 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:10:47,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash 353548140, now seen corresponding path program 1 times [2023-12-02 19:10:47,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:10:47,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1639459139] [2023-12-02 19:10:47,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:10:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2023-12-02 19:10:48,308 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:10:48,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1639459139] [2023-12-02 19:10:48,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1639459139] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:10:48,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:10:48,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:10:48,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633653180] [2023-12-02 19:10:48,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:10:48,311 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:10:48,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:10:48,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:10:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:48,312 INFO L87 Difference]: Start difference. First operand 3208 states and 4738 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-02 19:10:52,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:54,550 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:10:55,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:10:55,259 INFO L93 Difference]: Finished difference Result 8803 states and 12999 transitions. [2023-12-02 19:10:55,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:10:55,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 137 [2023-12-02 19:10:55,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:10:55,327 INFO L225 Difference]: With dead ends: 8803 [2023-12-02 19:10:55,327 INFO L226 Difference]: Without dead ends: 5612 [2023-12-02 19:10:55,354 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 [2023-12-02 19:10:55,355 INFO L413 NwaCegarLoop]: 2587 mSDtfsCounter, 1910 mSDsluCounter, 2180 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1910 SdHoareTripleChecker+Valid, 4767 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:10:55,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1910 Valid, 4767 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2023-12-02 19:10:55,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5612 states. [2023-12-02 19:10:55,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5612 to 5608. [2023-12-02 19:10:55,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5608 states, 3296 states have (on average 1.2851941747572815) internal successors, (4236), 3407 states have internal predecessors, (4236), 2002 states have call successors, (2002), 310 states have call predecessors, (2002), 309 states have return successors, (2015), 1960 states have call predecessors, (2015), 2002 states have call successors, (2015) [2023-12-02 19:10:55,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5608 states to 5608 states and 8253 transitions. [2023-12-02 19:10:55,901 INFO L78 Accepts]: Start accepts. Automaton has 5608 states and 8253 transitions. Word has length 137 [2023-12-02 19:10:55,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:10:55,902 INFO L495 AbstractCegarLoop]: Abstraction has 5608 states and 8253 transitions. [2023-12-02 19:10:55,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 3 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2023-12-02 19:10:55,902 INFO L276 IsEmpty]: Start isEmpty. Operand 5608 states and 8253 transitions. [2023-12-02 19:10:55,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2023-12-02 19:10:55,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:10:55,921 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:10:55,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 19:10:55,921 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:10:55,922 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:10:55,922 INFO L85 PathProgramCache]: Analyzing trace with hash 59337872, now seen corresponding path program 1 times [2023-12-02 19:10:55,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:10:55,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529236467] [2023-12-02 19:10:55,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:10:55,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:10:56,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:10:56,406 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2023-12-02 19:10:56,406 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:10:56,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529236467] [2023-12-02 19:10:56,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529236467] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:10:56,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:10:56,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:10:56,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262312593] [2023-12-02 19:10:56,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:10:56,408 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:10:56,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:10:56,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:10:56,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:10:56,409 INFO L87 Difference]: Start difference. First operand 5608 states and 8253 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-12-02 19:10:59,661 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:02,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:03,288 INFO L93 Difference]: Finished difference Result 14847 states and 21748 transitions. [2023-12-02 19:11:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:03,289 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 199 [2023-12-02 19:11:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:03,342 INFO L225 Difference]: With dead ends: 14847 [2023-12-02 19:11:03,343 INFO L226 Difference]: Without dead ends: 9256 [2023-12-02 19:11:03,368 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 [2023-12-02 19:11:03,369 INFO L413 NwaCegarLoop]: 2453 mSDtfsCounter, 2277 mSDsluCounter, 1835 mSDsCounter, 0 mSdLazyCounter, 667 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2277 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 667 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:03,370 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2277 Valid, 4288 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 667 Invalid, 1 Unknown, 0 Unchecked, 6.5s Time] [2023-12-02 19:11:03,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9256 states. [2023-12-02 19:11:03,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9256 to 9234. [2023-12-02 19:11:03,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9234 states, 5455 states have (on average 1.2863428047662695) internal successors, (7017), 5642 states have internal predecessors, (7017), 3219 states have call successors, (3219), 576 states have call predecessors, (3219), 559 states have return successors, (3259), 3120 states have call predecessors, (3259), 3219 states have call successors, (3259) [2023-12-02 19:11:03,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9234 states to 9234 states and 13495 transitions. [2023-12-02 19:11:03,866 INFO L78 Accepts]: Start accepts. Automaton has 9234 states and 13495 transitions. Word has length 199 [2023-12-02 19:11:03,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:03,866 INFO L495 AbstractCegarLoop]: Abstraction has 9234 states and 13495 transitions. [2023-12-02 19:11:03,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 3 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2023-12-02 19:11:03,867 INFO L276 IsEmpty]: Start isEmpty. Operand 9234 states and 13495 transitions. [2023-12-02 19:11:03,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2023-12-02 19:11:03,878 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:03,878 INFO L195 NwaCegarLoop]: trace histogram [9, 8, 8, 8, 8, 8, 8, 4, 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] [2023-12-02 19:11:03,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 19:11:03,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:11:03,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:03,879 INFO L85 PathProgramCache]: Analyzing trace with hash 640135589, now seen corresponding path program 1 times [2023-12-02 19:11:03,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:03,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991391198] [2023-12-02 19:11:03,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:03,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:04,180 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2023-12-02 19:11:04,181 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:04,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991391198] [2023-12-02 19:11:04,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991391198] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:11:04,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:11:04,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:11:04,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590613062] [2023-12-02 19:11:04,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:11:04,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:11:04,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:11:04,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:11:04,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:04,184 INFO L87 Difference]: Start difference. First operand 9234 states and 13495 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-02 19:11:08,414 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:11,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:11,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:11,483 INFO L93 Difference]: Finished difference Result 25948 states and 37870 transitions. [2023-12-02 19:11:11,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:11,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 201 [2023-12-02 19:11:11,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:11,590 INFO L225 Difference]: With dead ends: 25948 [2023-12-02 19:11:11,590 INFO L226 Difference]: Without dead ends: 16731 [2023-12-02 19:11:11,625 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 [2023-12-02 19:11:11,626 INFO L413 NwaCegarLoop]: 2285 mSDtfsCounter, 2259 mSDsluCounter, 2158 mSDsCounter, 0 mSdLazyCounter, 709 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2259 SdHoareTripleChecker+Valid, 4443 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 709 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:11,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2259 Valid, 4443 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 709 Invalid, 1 Unknown, 0 Unchecked, 6.7s Time] [2023-12-02 19:11:11,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16731 states. [2023-12-02 19:11:12,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16731 to 16723. [2023-12-02 19:11:12,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16723 states, 9899 states have (on average 1.283260935448025) internal successors, (12703), 10255 states have internal predecessors, (12703), 5783 states have call successors, (5783), 1072 states have call predecessors, (5783), 1040 states have return successors, (5867), 5589 states have call predecessors, (5867), 5783 states have call successors, (5867) [2023-12-02 19:11:12,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16723 states to 16723 states and 24353 transitions. [2023-12-02 19:11:12,960 INFO L78 Accepts]: Start accepts. Automaton has 16723 states and 24353 transitions. Word has length 201 [2023-12-02 19:11:12,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:12,961 INFO L495 AbstractCegarLoop]: Abstraction has 16723 states and 24353 transitions. [2023-12-02 19:11:12,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 states have internal predecessors, (79), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-02 19:11:12,962 INFO L276 IsEmpty]: Start isEmpty. Operand 16723 states and 24353 transitions. [2023-12-02 19:11:12,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2023-12-02 19:11:12,972 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:12,972 INFO L195 NwaCegarLoop]: trace histogram [12, 8, 8, 8, 8, 8, 8, 5, 5, 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] [2023-12-02 19:11:12,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 19:11:12,973 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:11:12,973 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:12,973 INFO L85 PathProgramCache]: Analyzing trace with hash 698173183, now seen corresponding path program 1 times [2023-12-02 19:11:12,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:12,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823680460] [2023-12-02 19:11:12,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:12,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:13,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:13,409 INFO L134 CoverageAnalysis]: Checked inductivity of 333 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2023-12-02 19:11:13,409 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:13,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823680460] [2023-12-02 19:11:13,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823680460] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:11:13,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:11:13,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:11:13,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200350780] [2023-12-02 19:11:13,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:11:13,411 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:11:13,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:11:13,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:11:13,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:13,412 INFO L87 Difference]: Start difference. First operand 16723 states and 24353 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-02 19:11:15,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:17,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.84s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:21,937 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:22,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:22,116 INFO L93 Difference]: Finished difference Result 39920 states and 58122 transitions. [2023-12-02 19:11:22,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:22,117 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 186 [2023-12-02 19:11:22,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:22,240 INFO L225 Difference]: With dead ends: 39920 [2023-12-02 19:11:22,240 INFO L226 Difference]: Without dead ends: 23214 [2023-12-02 19:11:22,410 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 [2023-12-02 19:11:22,411 INFO L413 NwaCegarLoop]: 3880 mSDtfsCounter, 1919 mSDsluCounter, 2172 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 15 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 6052 SdHoareTripleChecker+Invalid, 977 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:22,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 6052 Invalid, 977 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 961 Invalid, 1 Unknown, 0 Unchecked, 7.8s Time] [2023-12-02 19:11:22,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23214 states. [2023-12-02 19:11:23,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23214 to 23204. [2023-12-02 19:11:23,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23204 states, 13719 states have (on average 1.277717034769298) internal successors, (17529), 14203 states have internal predecessors, (17529), 8026 states have call successors, (8026), 1498 states have call predecessors, (8026), 1458 states have return successors, (8110), 7774 states have call predecessors, (8110), 8026 states have call successors, (8110) [2023-12-02 19:11:23,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23204 states to 23204 states and 33665 transitions. [2023-12-02 19:11:23,801 INFO L78 Accepts]: Start accepts. Automaton has 23204 states and 33665 transitions. Word has length 186 [2023-12-02 19:11:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:23,801 INFO L495 AbstractCegarLoop]: Abstraction has 23204 states and 33665 transitions. [2023-12-02 19:11:23,802 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, (23), 2 states have call predecessors, (23), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2023-12-02 19:11:23,802 INFO L276 IsEmpty]: Start isEmpty. Operand 23204 states and 33665 transitions. [2023-12-02 19:11:23,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-02 19:11:23,813 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:23,814 INFO L195 NwaCegarLoop]: trace histogram [10, 8, 8, 8, 8, 8, 8, 3, 3, 3, 3, 3, 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] [2023-12-02 19:11:23,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 19:11:23,814 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:11:23,815 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:23,815 INFO L85 PathProgramCache]: Analyzing trace with hash -619119832, now seen corresponding path program 1 times [2023-12-02 19:11:23,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:23,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41500484] [2023-12-02 19:11:23,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:23,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:23,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:24,361 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2023-12-02 19:11:24,361 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:24,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41500484] [2023-12-02 19:11:24,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41500484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:11:24,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:11:24,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:11:24,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107169451] [2023-12-02 19:11:24,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:11:24,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:11:24,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:11:24,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:11:24,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:24,364 INFO L87 Difference]: Start difference. First operand 23204 states and 33665 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-02 19:11:27,685 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:29,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:34,777 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:35,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:35,100 INFO L93 Difference]: Finished difference Result 69542 states and 100885 transitions. [2023-12-02 19:11:35,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:35,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 217 [2023-12-02 19:11:35,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:35,275 INFO L225 Difference]: With dead ends: 69542 [2023-12-02 19:11:35,275 INFO L226 Difference]: Without dead ends: 46355 [2023-12-02 19:11:35,339 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 [2023-12-02 19:11:35,340 INFO L413 NwaCegarLoop]: 3242 mSDtfsCounter, 2507 mSDsluCounter, 2211 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:35,340 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 5453 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 9.1s Time] [2023-12-02 19:11:35,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46355 states. [2023-12-02 19:11:37,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46355 to 46305. [2023-12-02 19:11:37,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46305 states, 27368 states have (on average 1.2766734872844197) internal successors, (34940), 28372 states have internal predecessors, (34940), 16020 states have call successors, (16020), 2996 states have call predecessors, (16020), 2916 states have return successors, (16188), 15480 states have call predecessors, (16188), 16020 states have call successors, (16188) [2023-12-02 19:11:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46305 states to 46305 states and 67148 transitions. [2023-12-02 19:11:37,749 INFO L78 Accepts]: Start accepts. Automaton has 46305 states and 67148 transitions. Word has length 217 [2023-12-02 19:11:37,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:37,750 INFO L495 AbstractCegarLoop]: Abstraction has 46305 states and 67148 transitions. [2023-12-02 19:11:37,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 3 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2023-12-02 19:11:37,750 INFO L276 IsEmpty]: Start isEmpty. Operand 46305 states and 67148 transitions. [2023-12-02 19:11:37,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2023-12-02 19:11:37,764 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:37,764 INFO L195 NwaCegarLoop]: trace histogram [11, 8, 8, 8, 8, 8, 8, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:11:37,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 19:11:37,765 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:11:37,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:37,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1099084983, now seen corresponding path program 1 times [2023-12-02 19:11:37,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:37,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487741187] [2023-12-02 19:11:37,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:37,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:37,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:38,204 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 315 trivial. 0 not checked. [2023-12-02 19:11:38,204 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:38,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487741187] [2023-12-02 19:11:38,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487741187] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:11:38,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:11:38,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:11:38,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287495122] [2023-12-02 19:11:38,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:11:38,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:11:38,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:11:38,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:11:38,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:11:38,207 INFO L87 Difference]: Start difference. First operand 46305 states and 67148 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-02 19:11:41,415 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:44,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:11:44,048 INFO L93 Difference]: Finished difference Result 92943 states and 134535 transitions. [2023-12-02 19:11:44,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:11:44,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) Word has length 232 [2023-12-02 19:11:44,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:11:44,302 INFO L225 Difference]: With dead ends: 92943 [2023-12-02 19:11:44,303 INFO L226 Difference]: Without dead ends: 46655 [2023-12-02 19:11:44,431 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 [2023-12-02 19:11:44,432 INFO L413 NwaCegarLoop]: 2209 mSDtfsCounter, 79 mSDsluCounter, 2183 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 4392 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:11:44,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 4392 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-02 19:11:44,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46655 states. [2023-12-02 19:11:46,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46655 to 46655. [2023-12-02 19:11:46,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46655 states, 27589 states have (on average 1.2746384428576607) internal successors, (35166), 28593 states have internal predecessors, (35166), 16037 states have call successors, (16037), 3108 states have call predecessors, (16037), 3028 states have return successors, (16205), 15497 states have call predecessors, (16205), 16037 states have call successors, (16205) [2023-12-02 19:11:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46655 states to 46655 states and 67408 transitions. [2023-12-02 19:11:46,718 INFO L78 Accepts]: Start accepts. Automaton has 46655 states and 67408 transitions. Word has length 232 [2023-12-02 19:11:46,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:11:46,719 INFO L495 AbstractCegarLoop]: Abstraction has 46655 states and 67408 transitions. [2023-12-02 19:11:46,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 3 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (31), 3 states have call predecessors, (31), 3 states have call successors, (31) [2023-12-02 19:11:46,719 INFO L276 IsEmpty]: Start isEmpty. Operand 46655 states and 67408 transitions. [2023-12-02 19:11:46,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-02 19:11:46,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:11:46,740 INFO L195 NwaCegarLoop]: trace histogram [14, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-02 19:11:46,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 19:11:46,741 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:11:46,741 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:11:46,741 INFO L85 PathProgramCache]: Analyzing trace with hash -357948739, now seen corresponding path program 1 times [2023-12-02 19:11:46,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:11:46,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493478817] [2023-12-02 19:11:46,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:11:46,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:11:46,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:11:47,183 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-12-02 19:11:47,183 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:11:47,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493478817] [2023-12-02 19:11:47,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [493478817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:11:47,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:11:47,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 19:11:47,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339974905] [2023-12-02 19:11:47,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:11:47,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 19:11:47,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:11:47,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 19:11:47,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:11:47,186 INFO L87 Difference]: Start difference. First operand 46655 states and 67408 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:11:50,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:51,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:54,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:11:58,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:00,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:01,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:01,309 INFO L93 Difference]: Finished difference Result 96119 states and 139399 transitions. [2023-12-02 19:12:01,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 19:12:01,310 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 248 [2023-12-02 19:12:01,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:01,497 INFO L225 Difference]: With dead ends: 96119 [2023-12-02 19:12:01,497 INFO L226 Difference]: Without dead ends: 49527 [2023-12-02 19:12:01,628 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 19:12:01,629 INFO L413 NwaCegarLoop]: 2213 mSDtfsCounter, 164 mSDsluCounter, 6635 mSDsCounter, 0 mSdLazyCounter, 1337 mSolverCounterSat, 1 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 8848 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1337 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:01,629 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 8848 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1337 Invalid, 3 Unknown, 0 Unchecked, 12.0s Time] [2023-12-02 19:12:01,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49527 states. [2023-12-02 19:12:03,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49527 to 46719. [2023-12-02 19:12:03,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46719 states, 27637 states have (on average 1.2741614502297645) internal successors, (35214), 28641 states have internal predecessors, (35214), 16037 states have call successors, (16037), 3108 states have call predecessors, (16037), 3044 states have return successors, (16237), 15513 states have call predecessors, (16237), 16037 states have call successors, (16237) [2023-12-02 19:12:03,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46719 states to 46719 states and 67488 transitions. [2023-12-02 19:12:03,891 INFO L78 Accepts]: Start accepts. Automaton has 46719 states and 67488 transitions. Word has length 248 [2023-12-02 19:12:03,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:03,892 INFO L495 AbstractCegarLoop]: Abstraction has 46719 states and 67488 transitions. [2023-12-02 19:12:03,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:12:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 46719 states and 67488 transitions. [2023-12-02 19:12:03,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2023-12-02 19:12:03,908 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:03,908 INFO L195 NwaCegarLoop]: trace histogram [14, 9, 9, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2023-12-02 19:12:03,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 19:12:03,909 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:03,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:03,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1209479293, now seen corresponding path program 1 times [2023-12-02 19:12:03,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:03,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47746] [2023-12-02 19:12:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:03,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2023-12-02 19:12:08,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:08,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47746] [2023-12-02 19:12:08,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47746] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:08,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:08,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-02 19:12:08,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457267582] [2023-12-02 19:12:08,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:08,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-02 19:12:08,195 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-02 19:12:08,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-12-02 19:12:08,196 INFO L87 Difference]: Start difference. First operand 46719 states and 67488 transitions. Second operand has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:12:12,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:14,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:16,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:20,588 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:23,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:23,196 INFO L93 Difference]: Finished difference Result 51873 states and 74532 transitions. [2023-12-02 19:12:23,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-02 19:12:23,197 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) Word has length 248 [2023-12-02 19:12:23,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:23,408 INFO L225 Difference]: With dead ends: 51873 [2023-12-02 19:12:23,408 INFO L226 Difference]: Without dead ends: 51871 [2023-12-02 19:12:23,437 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-12-02 19:12:23,438 INFO L413 NwaCegarLoop]: 2212 mSDtfsCounter, 526 mSDsluCounter, 8545 mSDsCounter, 0 mSdLazyCounter, 1985 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 10757 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1985 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:23,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 10757 Invalid, 1989 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 1985 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2023-12-02 19:12:23,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51871 states. [2023-12-02 19:12:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51871 to 51851. [2023-12-02 19:12:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51851 states, 31059 states have (on average 1.273479506745227) internal successors, (39553), 32201 states have internal predecessors, (39553), 17325 states have call successors, (17325), 3598 states have call predecessors, (17325), 3466 states have return successors, (17625), 16603 states have call predecessors, (17625), 17325 states have call successors, (17625) [2023-12-02 19:12:26,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51851 states to 51851 states and 74503 transitions. [2023-12-02 19:12:26,058 INFO L78 Accepts]: Start accepts. Automaton has 51851 states and 74503 transitions. Word has length 248 [2023-12-02 19:12:26,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:26,059 INFO L495 AbstractCegarLoop]: Abstraction has 51851 states and 74503 transitions. [2023-12-02 19:12:26,059 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 3 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-02 19:12:26,059 INFO L276 IsEmpty]: Start isEmpty. Operand 51851 states and 74503 transitions. [2023-12-02 19:12:26,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2023-12-02 19:12:26,080 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:26,081 INFO L195 NwaCegarLoop]: trace histogram [13, 8, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:26,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 19:12:26,081 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:26,081 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:26,081 INFO L85 PathProgramCache]: Analyzing trace with hash 697755386, now seen corresponding path program 1 times [2023-12-02 19:12:26,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:26,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915054989] [2023-12-02 19:12:26,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:26,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:26,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:26,340 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2023-12-02 19:12:26,340 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:26,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915054989] [2023-12-02 19:12:26,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915054989] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:26,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:26,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:12:26,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121595346] [2023-12-02 19:12:26,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:26,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:12:26,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:26,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:12:26,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:12:26,343 INFO L87 Difference]: Start difference. First operand 51851 states and 74503 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 19:12:29,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.65s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:30,533 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:33,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:33,714 INFO L93 Difference]: Finished difference Result 103621 states and 148910 transitions. [2023-12-02 19:12:33,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:12:33,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 265 [2023-12-02 19:12:33,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:33,913 INFO L225 Difference]: With dead ends: 103621 [2023-12-02 19:12:33,913 INFO L226 Difference]: Without dead ends: 51851 [2023-12-02 19:12:34,061 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 [2023-12-02 19:12:34,062 INFO L413 NwaCegarLoop]: 2214 mSDtfsCounter, 7 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 4418 SdHoareTripleChecker+Invalid, 664 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:34,062 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 4418 Invalid, 664 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-12-02 19:12:34,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51851 states. [2023-12-02 19:12:36,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51851 to 51851. [2023-12-02 19:12:36,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51851 states, 31059 states have (on average 1.2711613380984579) internal successors, (39481), 32201 states have internal predecessors, (39481), 17325 states have call successors, (17325), 3598 states have call predecessors, (17325), 3466 states have return successors, (17625), 16603 states have call predecessors, (17625), 17325 states have call successors, (17625) [2023-12-02 19:12:37,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51851 states to 51851 states and 74431 transitions. [2023-12-02 19:12:37,029 INFO L78 Accepts]: Start accepts. Automaton has 51851 states and 74431 transitions. Word has length 265 [2023-12-02 19:12:37,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:37,030 INFO L495 AbstractCegarLoop]: Abstraction has 51851 states and 74431 transitions. [2023-12-02 19:12:37,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (38), 2 states have call predecessors, (38), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-02 19:12:37,030 INFO L276 IsEmpty]: Start isEmpty. Operand 51851 states and 74431 transitions. [2023-12-02 19:12:37,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2023-12-02 19:12:37,049 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:37,050 INFO L195 NwaCegarLoop]: trace histogram [14, 10, 10, 8, 8, 8, 8, 8, 8, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:37,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 19:12:37,050 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:37,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:37,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1598719979, now seen corresponding path program 1 times [2023-12-02 19:12:37,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:37,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653685342] [2023-12-02 19:12:37,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:37,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:37,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:37,353 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2023-12-02 19:12:37,353 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:37,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653685342] [2023-12-02 19:12:37,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653685342] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 19:12:37,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 19:12:37,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 19:12:37,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364482548] [2023-12-02 19:12:37,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 19:12:37,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 19:12:37,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 19:12:37,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 19:12:37,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 19:12:37,357 INFO L87 Difference]: Start difference. First operand 51851 states and 74431 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-02 19:12:40,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 19:12:43,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 19:12:43,305 INFO L93 Difference]: Finished difference Result 99435 states and 143814 transitions. [2023-12-02 19:12:43,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 19:12:43,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 303 [2023-12-02 19:12:43,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 19:12:43,624 INFO L225 Difference]: With dead ends: 99435 [2023-12-02 19:12:43,624 INFO L226 Difference]: Without dead ends: 52779 [2023-12-02 19:12:43,835 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 [2023-12-02 19:12:43,836 INFO L413 NwaCegarLoop]: 2209 mSDtfsCounter, 19 mSDsluCounter, 2207 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 4416 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-12-02 19:12:43,836 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 4416 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-12-02 19:12:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52779 states. [2023-12-02 19:12:46,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52779 to 51915. [2023-12-02 19:12:46,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51915 states, 31123 states have (on average 1.2706037335732416) internal successors, (39545), 32265 states have internal predecessors, (39545), 17325 states have call successors, (17325), 3598 states have call predecessors, (17325), 3466 states have return successors, (17625), 16603 states have call predecessors, (17625), 17325 states have call successors, (17625) [2023-12-02 19:12:46,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51915 states to 51915 states and 74495 transitions. [2023-12-02 19:12:46,649 INFO L78 Accepts]: Start accepts. Automaton has 51915 states and 74495 transitions. Word has length 303 [2023-12-02 19:12:46,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 19:12:46,650 INFO L495 AbstractCegarLoop]: Abstraction has 51915 states and 74495 transitions. [2023-12-02 19:12:46,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 2 states have call successors, (47), 2 states have call predecessors, (47), 2 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2023-12-02 19:12:46,650 INFO L276 IsEmpty]: Start isEmpty. Operand 51915 states and 74495 transitions. [2023-12-02 19:12:46,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2023-12-02 19:12:46,667 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 19:12:46,667 INFO L195 NwaCegarLoop]: trace histogram [14, 10, 10, 8, 8, 8, 8, 8, 8, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 19:12:46,667 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 19:12:46,668 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 19:12:46,668 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 19:12:46,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1249553391, now seen corresponding path program 1 times [2023-12-02 19:12:46,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 19:12:46,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040098331] [2023-12-02 19:12:46,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:46,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 19:12:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:47,096 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-12-02 19:12:47,096 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 19:12:47,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040098331] [2023-12-02 19:12:47,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040098331] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-02 19:12:47,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [752942777] [2023-12-02 19:12:47,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 19:12:47,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-02 19:12:47,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 19:12:47,101 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-02 19:12:47,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7af1fe8e-61f6-4647-be12-e26637f928da/bin/utaipan-verify-nQ1chXbOIh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-02 19:12:48,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 19:12:48,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 3291 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 19:12:48,148 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 19:12:48,201 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-12-02 19:12:48,202 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-02 19:12:48,419 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2023-12-02 19:12:48,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [752942777] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-02 19:12:48,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1818010126] [2023-12-02 19:12:48,447 INFO L159 IcfgInterpreter]: Started Sifa with 184 locations of interest [2023-12-02 19:12:48,447 INFO L166 IcfgInterpreter]: Building call graph [2023-12-02 19:12:48,451 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-12-02 19:12:48,457 INFO L176 IcfgInterpreter]: Starting interpretation [2023-12-02 19:12:48,457 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs