./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/config/TaipanReach.xml -i ../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/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 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 12:53:34,972 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 12:53:35,036 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/config/svcomp-Reach-64bit-Taipan_Default.epf [2023-12-02 12:53:35,041 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 12:53:35,041 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-02 12:53:35,065 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 12:53:35,065 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-02 12:53:35,066 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-02 12:53:35,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-02 12:53:35,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-02 12:53:35,068 INFO L153 SettingsManager]: * User list type=DISABLED [2023-12-02 12:53:35,068 INFO L151 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-12-02 12:53:35,069 INFO L153 SettingsManager]: * Explicit value domain=true [2023-12-02 12:53:35,070 INFO L153 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-12-02 12:53:35,070 INFO L153 SettingsManager]: * Octagon Domain=false [2023-12-02 12:53:35,071 INFO L153 SettingsManager]: * Abstract domain=CompoundDomain [2023-12-02 12:53:35,071 INFO L153 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-12-02 12:53:35,072 INFO L153 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-12-02 12:53:35,073 INFO L153 SettingsManager]: * Interval Domain=false [2023-12-02 12:53:35,073 INFO L151 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-12-02 12:53:35,074 INFO L153 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-12-02 12:53:35,074 INFO L153 SettingsManager]: * Simplification Technique=POLY_PAC [2023-12-02 12:53:35,075 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 12:53:35,076 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 12:53:35,076 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 12:53:35,077 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 12:53:35,077 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 12:53:35,077 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 12:53:35,078 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 12:53:35,078 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 12:53:35,078 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 12:53:35,079 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 12:53:35,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-02 12:53:35,079 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-02 12:53:35,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:53:35,080 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 12:53:35,080 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 12:53:35,080 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-02 12:53:35,080 INFO L153 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-12-02 12:53:35,081 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 12:53:35,081 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-02 12:53:35,081 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-02 12:53:35,081 INFO L153 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-12-02 12:53:35,081 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 12:53:35,082 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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 371146a21f508450d2917c35c74c2cfe0e1080bf9001699397599cb4eb3a0e88 [2023-12-02 12:53:35,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 12:53:35,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 12:53:35,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 12:53:35,332 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 12:53:35,332 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 12:53:35,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/../../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2023-12-02 12:53:38,170 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 12:53:38,701 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 12:53:38,702 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2023-12-02 12:53:38,751 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/data/c3321295f/f5278233bd634781a585484938f29696/FLAG7d4df1e8e [2023-12-02 12:53:38,766 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/data/c3321295f/f5278233bd634781a585484938f29696 [2023-12-02 12:53:38,769 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 12:53:38,770 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 12:53:38,771 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 12:53:38,772 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 12:53:38,777 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 12:53:38,778 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:53:38" (1/1) ... [2023-12-02 12:53:38,779 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@aadf2a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:38, skipping insertion in model container [2023-12-02 12:53:38,779 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:53:38" (1/1) ... [2023-12-02 12:53:38,964 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 12:53:42,070 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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2023-12-02 12:53:42,074 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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2023-12-02 12:53:42,099 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:53:42,159 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 12:53:42,271 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& current_task)); [6020] [2023-12-02 12:53:42,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6023] [2023-12-02 12:53:42,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6026] [2023-12-02 12:53:42,273 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& current_task)); [6029] [2023-12-02 12:53:42,314 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; incl %0": "+m" (v->counter)); [7017] [2023-12-02 12:53:42,314 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; decl %0": "+m" (v->counter)); [7024] [2023-12-02 12:53:42,315 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("":); [7031] [2023-12-02 12:53:42,394 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 *)"fs/autofs4/root.c"), "i" (535), "i" (12UL)); [8335-8336] [2023-12-02 12:53:42,412 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 *)"fs/autofs4/root.c"), "i" (718), "i" (12UL)); [8642-8643] [2023-12-02 12:53:42,416 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (4UL)); [8695-8696] [2023-12-02 12:53:42,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8726] [2023-12-02 12:53:42,417 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8729] [2023-12-02 12:53:42,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8732] [2023-12-02 12:53:42,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8735] [2023-12-02 12:53:42,418 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8738] [2023-12-02 12:53:42,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (p), "i" (8UL)); [8768-8769] [2023-12-02 12:53:42,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8799] [2023-12-02 12:53:42,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8802] [2023-12-02 12:53:42,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8805] [2023-12-02 12:53:42,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8808] [2023-12-02 12:53:42,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8811] [2023-12-02 12:53:42,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8858] [2023-12-02 12:53:42,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8861] [2023-12-02 12:53:42,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8864] [2023-12-02 12:53:42,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8867] [2023-12-02 12:53:42,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8870] [2023-12-02 12:53:42,425 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8906] [2023-12-02 12:53:42,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8909] [2023-12-02 12:53:42,426 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8912] [2023-12-02 12:53:42,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8915] [2023-12-02 12:53:42,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8918] [2023-12-02 12:53:42,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_1": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8984] [2023-12-02 12:53:42,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_2": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8987] [2023-12-02 12:53:42,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_4": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8990] [2023-12-02 12:53:42,430 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_8": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8993] [2023-12-02 12:53:42,431 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __put_user_X": "=a" (__ret_pu): "0" (__pu_val), "c" (p): "ebx"); [8996] [2023-12-02 12:53:42,454 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)); [9626-9627] [2023-12-02 12:53:42,454 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"); [9632-9634] [2023-12-02 12:53:42,456 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" (809), "i" (12UL)); [9659-9660] [2023-12-02 12:53:42,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("771:\n\tcall *%c2;\n772:\n.pushsection .parainstructions,\"a\"\n .balign 8 \n .quad 771b\n .byte %c1\n .byte 772b-771b\n .short %c3\n.popsection\n": "=a" (__eax): [paravirt_typenum] "i" (45UL), [paravirt_opptr] "i" (& pv_irq_ops.restore_fl.func), [paravirt_clobber] "i" (1), "D" (f): "memory", "cc"); [9665-9667] [2023-12-02 12:53:42,457 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" (814), "i" (12UL)); [9691-9692] [2023-12-02 12:53:42,458 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" (46UL), [paravirt_opptr] "i" (& pv_irq_ops.irq_disable.func), [paravirt_clobber] "i" (1): "memory", "cc"); [9697-9699] [2023-12-02 12:53:42,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("rep; nop": : : "memory"); [9725] [2023-12-02 12:53:42,459 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; incq %0": "=m" (v->counter): "m" (v->counter)); [9741] [2023-12-02 12:53:42,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movb %%gs:%P1,%0": "=q" (pfo_ret__): "p" (& kernel_stack)); [9794] [2023-12-02 12:53:42,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movw %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [9797] [2023-12-02 12:53:42,461 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movl %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [9800] [2023-12-02 12:53:42,462 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("movq %%gs:%P1,%0": "=r" (pfo_ret__): "p" (& kernel_stack)); [9803] [2023-12-02 12:53:42,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [9842] [2023-12-02 12:53:42,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [9845] [2023-12-02 12:53:42,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (val)); [9847] [2023-12-02 12:53:42,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [9852] [2023-12-02 12:53:42,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [9855] [2023-12-02 12:53:42,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [9857] [2023-12-02 12:53:42,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [9862] [2023-12-02 12:53:42,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [9865] [2023-12-02 12:53:42,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (val)); [9867] [2023-12-02 12:53:42,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [9872] [2023-12-02 12:53:42,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [9875] [2023-12-02 12:53:42,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (val)); [9877] [2023-12-02 12:53:42,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incb %%gs:%P0": "+m" (__preempt_count)); [9915] [2023-12-02 12:53:42,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decb %%gs:%P0": "+m" (__preempt_count)); [9918] [2023-12-02 12:53:42,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addb %1, %%gs:%P0": "+m" (__preempt_count): "qi" (- val)); [9920] [2023-12-02 12:53:42,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incw %%gs:%P0": "+m" (__preempt_count)); [9925] [2023-12-02 12:53:42,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decw %%gs:%P0": "+m" (__preempt_count)); [9928] [2023-12-02 12:53:42,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addw %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [9930] [2023-12-02 12:53:42,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incl %%gs:%P0": "+m" (__preempt_count)); [9935] [2023-12-02 12:53:42,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decl %%gs:%P0": "+m" (__preempt_count)); [9938] [2023-12-02 12:53:42,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addl %1, %%gs:%P0": "+m" (__preempt_count): "ri" (- val)); [9940] [2023-12-02 12:53:42,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("incq %%gs:%P0": "+m" (__preempt_count)); [9945] [2023-12-02 12:53:42,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("decq %%gs:%P0": "+m" (__preempt_count)); [9948] [2023-12-02 12:53:42,471 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ ("addq %1, %%gs:%P0": "+m" (__preempt_count): "re" (- val)); [9950] [2023-12-02 12:53:42,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10041] [2023-12-02 12:53:42,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10072] [2023-12-02 12:53:42,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10107] [2023-12-02 12:53:42,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("": : : "memory"); [10116] [2023-12-02 12:53:42,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ volatile ("call __get_user_%P3": "=a" (__ret_gu), "=r" (__val_gu): "0" (arg), "i" (4UL)); [12417-12418] [2023-12-02 12:53:42,633 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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402539,402552] [2023-12-02 12:53:42,633 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_2019d2e1-8506-44bb-bc81-b21c9202b3cc/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i[402684,402697] [2023-12-02 12:53:42,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 12:53:42,820 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:53:42,820 WARN L675 CHandler]: The function strncpy is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:53:42,820 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:53:42,821 WARN L675 CHandler]: The function sprintf is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:53:42,821 WARN L675 CHandler]: The function __bad_percpu_size is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 12:53:42,829 INFO L206 MainTranslator]: Completed translation [2023-12-02 12:53:42,830 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42 WrapperNode [2023-12-02 12:53:42,830 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 12:53:42,831 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 12:53:42,831 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 12:53:42,832 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 12:53:42,839 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:42,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,213 INFO L138 Inliner]: procedures = 551, calls = 3977, calls flagged for inlining = 270, calls inlined = 246, statements flattened = 9618 [2023-12-02 12:53:43,214 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 12:53:43,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 12:53:43,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 12:53:43,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 12:53:43,225 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,226 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,280 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,280 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,470 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,600 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,684 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 12:53:43,686 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 12:53:43,686 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 12:53:43,687 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 12:53:43,688 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (1/1) ... [2023-12-02 12:53:43,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-12-02 12:53:43,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/z3 [2023-12-02 12:53:43,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-12-02 12:53:43,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2019d2e1-8506-44bb-bc81-b21c9202b3cc/bin/utaipan-verify-nQ1chXbOIh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-12-02 12:53:43,769 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_evict_inode [2023-12-02 12:53:43,769 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_evict_inode [2023-12-02 12:53:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure dput [2023-12-02 12:53:43,770 INFO L138 BoogieDeclarations]: Found implementation of procedure dput [2023-12-02 12:53:43,770 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2023-12-02 12:53:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2023-12-02 12:53:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_unlink [2023-12-02 12:53:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_unlink [2023-12-02 12:53:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_get_inode [2023-12-02 12:53:43,771 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_get_inode [2023-12-02 12:53:43,771 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2023-12-02 12:53:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2023-12-02 12:53:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2023-12-02 12:53:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2023-12-02 12:53:43,772 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_lseek [2023-12-02 12:53:43,772 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_lseek [2023-12-02 12:53:43,773 INFO L130 BoogieDeclarations]: Found specification of procedure do_expire_wait [2023-12-02 12:53:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure do_expire_wait [2023-12-02 12:53:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure arch_local_irq_restore [2023-12-02 12:53:43,774 INFO L138 BoogieDeclarations]: Found implementation of procedure arch_local_irq_restore [2023-12-02 12:53:43,774 INFO L130 BoogieDeclarations]: Found specification of procedure dget [2023-12-02 12:53:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure dget [2023-12-02 12:53:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure lock_release [2023-12-02 12:53:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_release [2023-12-02 12:53:43,775 INFO L130 BoogieDeclarations]: Found specification of procedure current_kernel_time [2023-12-02 12:53:43,775 INFO L138 BoogieDeclarations]: Found implementation of procedure current_kernel_time [2023-12-02 12:53:43,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_66 [2023-12-02 12:53:43,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_66 [2023-12-02 12:53:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_indirect [2023-12-02 12:53:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_indirect [2023-12-02 12:53:43,777 INFO L130 BoogieDeclarations]: Found specification of procedure new_encode_dev [2023-12-02 12:53:43,777 INFO L138 BoogieDeclarations]: Found implementation of procedure new_encode_dev [2023-12-02 12:53:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_clear_managed [2023-12-02 12:53:43,778 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_clear_managed [2023-12-02 12:53:43,778 INFO L130 BoogieDeclarations]: Found specification of procedure from_kgid_munged [2023-12-02 12:53:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kgid_munged [2023-12-02 12:53:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure follow_down_one [2023-12-02 12:53:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure follow_down_one [2023-12-02 12:53:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_show_options [2023-12-02 12:53:43,779 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_show_options [2023-12-02 12:53:43,779 INFO L130 BoogieDeclarations]: Found specification of procedure __autofs4_add_expiring [2023-12-02 12:53:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure __autofs4_add_expiring [2023-12-02 12:53:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure sprintf [2023-12-02 12:53:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 12:53:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_expire_wait [2023-12-02 12:53:43,780 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_expire_wait [2023-12-02 12:53:43,780 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl [2023-12-02 12:53:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl [2023-12-02 12:53:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2023-12-02 12:53:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2023-12-02 12:53:43,781 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2023-12-02 12:53:43,781 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2023-12-02 12:53:43,782 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2023-12-02 12:53:43,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2023-12-02 12:53:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 12:53:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure d_count [2023-12-02 12:53:43,783 INFO L138 BoogieDeclarations]: Found implementation of procedure d_count [2023-12-02 12:53:43,783 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2023-12-02 12:53:43,784 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2023-12-02 12:53:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_63 [2023-12-02 12:53:43,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_63 [2023-12-02 12:53:43,784 INFO L130 BoogieDeclarations]: Found specification of procedure from_kuid_munged [2023-12-02 12:53:43,785 INFO L138 BoogieDeclarations]: Found implementation of procedure from_kuid_munged [2023-12-02 12:53:43,786 INFO L130 BoogieDeclarations]: Found specification of procedure list_del [2023-12-02 12:53:43,789 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del [2023-12-02 12:53:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2023-12-02 12:53:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2023-12-02 12:53:43,790 INFO L130 BoogieDeclarations]: Found specification of procedure fput [2023-12-02 12:53:43,790 INFO L138 BoogieDeclarations]: Found implementation of procedure fput [2023-12-02 12:53:43,791 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_oz_mode [2023-12-02 12:53:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_oz_mode [2023-12-02 12:53:43,792 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_do_expire_multi [2023-12-02 12:53:43,792 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_do_expire_multi [2023-12-02 12:53:43,799 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2023-12-02 12:53:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_NOT_ARG_SIGN [2023-12-02 12:53:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure __task_pid_nr_ns [2023-12-02 12:53:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure __task_pid_nr_ns [2023-12-02 12:53:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_57 [2023-12-02 12:53:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_57 [2023-12-02 12:53:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2023-12-02 12:53:43,800 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2023-12-02 12:53:43,800 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_sbi [2023-12-02 12:53:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_sbi [2023-12-02 12:53:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-12-02 12:53:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2023-12-02 12:53:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2023-12-02 12:53:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_siglock_of_sighand_struct [2023-12-02 12:53:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_siglock_of_sighand_struct [2023-12-02 12:53:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_new_ino [2023-12-02 12:53:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_new_ino [2023-12-02 12:53:43,801 INFO L130 BoogieDeclarations]: Found specification of procedure simple_empty [2023-12-02 12:53:43,801 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_empty [2023-12-02 12:53:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-12-02 12:53:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2023-12-02 12:53:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2023-12-02 12:53:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_can_expire [2023-12-02 12:53:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_can_expire [2023-12-02 12:53:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_ino [2023-12-02 12:53:43,802 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_ino [2023-12-02 12:53:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 12:53:43,802 INFO L130 BoogieDeclarations]: Found specification of procedure fget [2023-12-02 12:53:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure fget [2023-12-02 12:53:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2023-12-02 12:53:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2023-12-02 12:53:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_open [2023-12-02 12:53:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_open [2023-12-02 12:53:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2023-12-02 12:53:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2023-12-02 12:53:43,803 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_rmdir [2023-12-02 12:53:43,803 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_rmdir [2023-12-02 12:53:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount [2023-12-02 12:53:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount [2023-12-02 12:53:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_dev_ioctl_exit [2023-12-02 12:53:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_dev_ioctl_exit [2023-12-02 12:53:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2023-12-02 12:53:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2023-12-02 12:53:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2023-12-02 12:53:43,804 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2023-12-02 12:53:43,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2023-12-02 12:53:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2023-12-02 12:53:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_open [2023-12-02 12:53:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_open [2023-12-02 12:53:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2023-12-02 12:53:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2023-12-02 12:53:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure clear_nlink [2023-12-02 12:53:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_nlink [2023-12-02 12:53:43,805 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_trigger [2023-12-02 12:53:43,805 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_trigger [2023-12-02 12:53:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 12:53:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure compat_ptr [2023-12-02 12:53:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure compat_ptr [2023-12-02 12:53:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2023-12-02 12:53:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2023-12-02 12:53:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2023-12-02 12:53:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2023-12-02 12:53:43,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2023-12-02 12:53:43,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2023-12-02 12:53:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2023-12-02 12:53:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2023-12-02 12:53:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure memchr [2023-12-02 12:53:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2023-12-02 12:53:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2023-12-02 12:53:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 12:53:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2023-12-02 12:53:43,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2023-12-02 12:53:43,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 12:53:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2023-12-02 12:53:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure simple_positive [2023-12-02 12:53:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_positive [2023-12-02 12:53:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2023-12-02 12:53:43,808 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2023-12-02 12:53:43,808 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2023-12-02 12:53:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2023-12-02 12:53:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure path_get [2023-12-02 12:53:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure path_get [2023-12-02 12:53:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2023-12-02 12:53:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2023-12-02 12:53:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure dget_dlock [2023-12-02 12:53:43,809 INFO L138 BoogieDeclarations]: Found implementation of procedure dget_dlock [2023-12-02 12:53:43,809 INFO L130 BoogieDeclarations]: Found specification of procedure d_lookup [2023-12-02 12:53:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure d_lookup [2023-12-02 12:53:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure list_add [2023-12-02 12:53:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure list_add [2023-12-02 12:53:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2023-12-02 12:53:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2023-12-02 12:53:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure recalc_sigpending [2023-12-02 12:53:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure recalc_sigpending [2023-12-02 12:53:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure __init_waitqueue_head [2023-12-02 12:53:43,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_waitqueue_head [2023-12-02 12:53:43,810 INFO L130 BoogieDeclarations]: Found specification of procedure d_drop [2023-12-02 12:53:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure d_drop [2023-12-02 12:53:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_mount [2023-12-02 12:53:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_mount [2023-12-02 12:53:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_type_indirect [2023-12-02 12:53:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_type_indirect [2023-12-02 12:53:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 12:53:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 12:53:43,811 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_wait [2023-12-02 12:53:43,811 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_wait [2023-12-02 12:53:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2023-12-02 12:53:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2023-12-02 12:53:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl [2023-12-02 12:53:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl [2023-12-02 12:53:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-12-02 12:53:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~int~X~int~TO~int [2023-12-02 12:53:43,812 INFO L130 BoogieDeclarations]: Found specification of procedure complete_all [2023-12-02 12:53:43,812 INFO L138 BoogieDeclarations]: Found implementation of procedure complete_all [2023-12-02 12:53:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2023-12-02 12:53:43,813 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2023-12-02 12:53:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-12-02 12:53:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-12-02 12:53:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait_release [2023-12-02 12:53:43,813 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait_release [2023-12-02 12:53:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2023-12-02 12:53:43,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2023-12-02 12:53:43,813 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_ioctl_unlocked [2023-12-02 12:53:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_ioctl_unlocked [2023-12-02 12:53:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure file_inode [2023-12-02 12:53:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure file_inode [2023-12-02 12:53:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2023-12-02 12:53:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2023-12-02 12:53:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_root_compat_ioctl [2023-12-02 12:53:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_root_compat_ioctl [2023-12-02 12:53:43,814 INFO L130 BoogieDeclarations]: Found specification of procedure read_seqretry [2023-12-02 12:53:43,814 INFO L138 BoogieDeclarations]: Found implementation of procedure read_seqretry [2023-12-02 12:53:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_interruptible_nested [2023-12-02 12:53:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_interruptible_nested [2023-12-02 12:53:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure list_del_init [2023-12-02 12:53:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure list_del_init [2023-12-02 12:53:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_readdir [2023-12-02 12:53:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_readdir [2023-12-02 12:53:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure d_instantiate [2023-12-02 12:53:43,815 INFO L138 BoogieDeclarations]: Found implementation of procedure d_instantiate [2023-12-02 12:53:43,815 INFO L130 BoogieDeclarations]: Found specification of procedure seq_printf [2023-12-02 12:53:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure seq_printf [2023-12-02 12:53:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2023-12-02 12:53:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2023-12-02 12:53:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure may_umount_tree [2023-12-02 12:53:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure may_umount_tree [2023-12-02 12:53:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_read [2023-12-02 12:53:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_read [2023-12-02 12:53:43,816 INFO L130 BoogieDeclarations]: Found specification of procedure simple_statfs [2023-12-02 12:53:43,816 INFO L138 BoogieDeclarations]: Found implementation of procedure simple_statfs [2023-12-02 12:53:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-12-02 12:53:43,817 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-12-02 12:53:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure get_task_pid [2023-12-02 12:53:43,817 INFO L138 BoogieDeclarations]: Found implementation of procedure get_task_pid [2023-12-02 12:53:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure path_put [2023-12-02 12:53:43,817 INFO L138 BoogieDeclarations]: Found implementation of procedure path_put [2023-12-02 12:53:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_mount_busy [2023-12-02 12:53:43,817 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_mount_busy [2023-12-02 12:53:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure d_unhashed [2023-12-02 12:53:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure d_unhashed [2023-12-02 12:53:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2023-12-02 12:53:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2023-12-02 12:53:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_kill_sb [2023-12-02 12:53:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_kill_sb [2023-12-02 12:53:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 12:53:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2023-12-02 12:53:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2023-12-02 12:53:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure generic_read_dir [2023-12-02 12:53:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure generic_read_dir [2023-12-02 12:53:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure trace_hardirqs_off [2023-12-02 12:53:43,819 INFO L138 BoogieDeclarations]: Found implementation of procedure trace_hardirqs_off [2023-12-02 12:53:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure managed_dentry_set_managed [2023-12-02 12:53:43,819 INFO L138 BoogieDeclarations]: Found implementation of procedure managed_dentry_set_managed [2023-12-02 12:53:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 12:53:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure __list_del_entry [2023-12-02 12:53:43,819 INFO L138 BoogieDeclarations]: Found implementation of procedure __list_del_entry [2023-12-02 12:53:43,819 INFO L130 BoogieDeclarations]: Found specification of procedure put_pid [2023-12-02 12:53:43,820 INFO L138 BoogieDeclarations]: Found implementation of procedure put_pid [2023-12-02 12:53:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 12:53:43,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2023-12-02 12:53:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-12-02 12:53:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2023-12-02 12:53:43,820 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2023-12-02 12:53:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2023-12-02 12:53:43,820 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2023-12-02 12:53:43,820 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2023-12-02 12:53:43,820 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2023-12-02 12:53:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure find_autofs_mount [2023-12-02 12:53:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure find_autofs_mount [2023-12-02 12:53:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2023-12-02 12:53:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2023-12-02 12:53:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2023-12-02 12:53:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2023-12-02 12:53:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure dcache_dir_close [2023-12-02 12:53:43,821 INFO L138 BoogieDeclarations]: Found implementation of procedure dcache_dir_close [2023-12-02 12:53:43,821 INFO L130 BoogieDeclarations]: Found specification of procedure ns_of_pid [2023-12-02 12:53:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_of_pid [2023-12-02 12:53:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2023-12-02 12:53:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2023-12-02 12:53:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure list_empty [2023-12-02 12:53:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure list_empty [2023-12-02 12:53:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_clean_ino [2023-12-02 12:53:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_clean_ino [2023-12-02 12:53:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_86 [2023-12-02 12:53:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_86 [2023-12-02 12:53:43,822 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_64 [2023-12-02 12:53:43,822 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_64 [2023-12-02 12:53:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure kern_path_mountpoint [2023-12-02 12:53:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kern_path_mountpoint [2023-12-02 12:53:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure get_next_positive_dentry [2023-12-02 12:53:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure get_next_positive_dentry [2023-12-02 12:53:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_58 [2023-12-02 12:53:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_58 [2023-12-02 12:53:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2023-12-02 12:53:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2023-12-02 12:53:43,823 INFO L130 BoogieDeclarations]: Found specification of procedure __managed_dentry_set_managed [2023-12-02 12:53:43,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __managed_dentry_set_managed [2023-12-02 12:53:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_wait [2023-12-02 12:53:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_wait [2023-12-02 12:53:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_find_wait [2023-12-02 12:53:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_find_wait [2023-12-02 12:53:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure init_completion [2023-12-02 12:53:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure init_completion [2023-12-02 12:53:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2023-12-02 12:53:43,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_exit_autofs4_fs_8_2 [2023-12-02 12:53:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 12:53:43,824 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dentry_release [2023-12-02 12:53:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dentry_release [2023-12-02 12:53:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure task_pgrp_nr [2023-12-02 12:53:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure task_pgrp_nr [2023-12-02 12:53:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure __dynamic_pr_debug [2023-12-02 12:53:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure __dynamic_pr_debug [2023-12-02 12:53:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2023-12-02 12:53:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2023-12-02 12:53:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_87 [2023-12-02 12:53:43,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_87 [2023-12-02 12:53:43,825 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2023-12-02 12:53:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2023-12-02 12:53:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_dir_symlink [2023-12-02 12:53:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_dir_symlink [2023-12-02 12:53:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2023-12-02 12:53:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2023-12-02 12:53:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure lock_acquire [2023-12-02 12:53:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure lock_acquire [2023-12-02 12:53:43,826 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2023-12-02 12:53:43,826 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2023-12-02 12:53:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure d_mountpoint [2023-12-02 12:53:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure d_mountpoint [2023-12-02 12:53:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2023-12-02 12:53:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2023-12-02 12:53:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure have_submounts [2023-12-02 12:53:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure have_submounts [2023-12-02 12:53:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure current_thread_info [2023-12-02 12:53:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure current_thread_info [2023-12-02 12:53:43,827 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2023-12-02 12:53:43,827 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2023-12-02 12:53:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2023-12-02 12:53:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2023-12-02 12:53:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2023-12-02 12:53:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2023-12-02 12:53:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure autofs_prepare_pipe [2023-12-02 12:53:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs_prepare_pipe [2023-12-02 12:53:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2023-12-02 12:53:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2023-12-02 12:53:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_del_active [2023-12-02 12:53:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_del_active [2023-12-02 12:53:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2023-12-02 12:53:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2023-12-02 12:53:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 12:53:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2023-12-02 12:53:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2023-12-02 12:53:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2023-12-02 12:53:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 12:53:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure d_add [2023-12-02 12:53:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure d_add [2023-12-02 12:53:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure autofs4_catatonic_mode [2023-12-02 12:53:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure autofs4_catatonic_mode [2023-12-02 12:53:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure gid_eq [2023-12-02 12:53:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_eq [2023-12-02 12:53:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2023-12-02 12:53:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2023-12-02 12:53:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure strncpy [2023-12-02 12:53:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure cpu_relax [2023-12-02 12:53:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure cpu_relax [2023-12-02 12:53:44,977 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 12:53:44,982 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 12:53:45,206 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2023-12-02 12:53:45,899 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint switch_break: call ULTIMATE.dealloc(~#descriptor~12#1.base, ~#descriptor~12#1.offset);havoc ~#descriptor~12#1.base, ~#descriptor~12#1.offset; [2023-12-02 12:53:53,292 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2023-12-02 12:53:53,533 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 12:53:55,593 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 12:53:55,593 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-12-02 12:53:55,596 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:53:55 BoogieIcfgContainer [2023-12-02 12:53:55,596 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 12:53:55,599 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-02 12:53:55,599 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-02 12:53:55,602 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-02 12:53:55,602 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:53:38" (1/3) ... [2023-12-02 12:53:55,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136b6afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:53:55, skipping insertion in model container [2023-12-02 12:53:55,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:53:42" (2/3) ... [2023-12-02 12:53:55,603 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@136b6afc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:53:55, skipping insertion in model container [2023-12-02 12:53:55,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:53:55" (3/3) ... [2023-12-02 12:53:55,605 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_fs-autofs4-autofs4.cil.i [2023-12-02 12:53:55,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-02 12:53:55,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-02 12:53:55,728 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-02 12:53:55,735 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;@67799fa, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-02 12:53:55,735 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-02 12:53:55,753 INFO L276 IsEmpty]: Start isEmpty. Operand has 2760 states, 1621 states have (on average 1.299198025909932) internal successors, (2106), 1669 states have internal predecessors, (2106), 971 states have call successors, (971), 168 states have call predecessors, (971), 167 states have return successors, (960), 954 states have call predecessors, (960), 960 states have call successors, (960) [2023-12-02 12:53:55,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2023-12-02 12:53:55,811 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:53:55,813 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:53:55,813 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:53:55,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:53:55,819 INFO L85 PathProgramCache]: Analyzing trace with hash -403898362, now seen corresponding path program 1 times [2023-12-02 12:53:55,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:53:55,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022498229] [2023-12-02 12:53:55,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:53:55,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:53:56,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:53:57,023 INFO L134 CoverageAnalysis]: Checked inductivity of 7665 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7665 trivial. 0 not checked. [2023-12-02 12:53:57,023 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:53:57,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022498229] [2023-12-02 12:53:57,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022498229] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:53:57,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:53:57,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:53:57,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528837201] [2023-12-02 12:53:57,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:53:57,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:53:57,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:53:57,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:53:57,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:53:57,070 INFO L87 Difference]: Start difference. First operand has 2760 states, 1621 states have (on average 1.299198025909932) internal successors, (2106), 1669 states have internal predecessors, (2106), 971 states have call successors, (971), 168 states have call predecessors, (971), 167 states have return successors, (960), 954 states have call predecessors, (960), 960 states have call successors, (960) Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2023-12-02 12:53:59,378 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 12:54:02,005 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:54:04,011 WARN L539 Checker$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 12:54:06,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:54:09,468 WARN L539 Checker$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 12:54:09,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:09,989 INFO L93 Difference]: Finished difference Result 7866 states and 11556 transitions. [2023-12-02 12:54:09,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:09,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) Word has length 531 [2023-12-02 12:54:09,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:10,049 INFO L225 Difference]: With dead ends: 7866 [2023-12-02 12:54:10,049 INFO L226 Difference]: Without dead ends: 5114 [2023-12-02 12:54:10,070 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 12:54:10,073 INFO L413 NwaCegarLoop]: 3656 mSDtfsCounter, 3549 mSDsluCounter, 3594 mSDsCounter, 0 mSdLazyCounter, 846 mSolverCounterSat, 7 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3549 SdHoareTripleChecker+Valid, 7250 SdHoareTripleChecker+Invalid, 858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 846 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:10,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3549 Valid, 7250 Invalid, 858 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 846 Invalid, 5 Unknown, 0 Unchecked, 12.5s Time] [2023-12-02 12:54:10,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5114 states. [2023-12-02 12:54:10,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5114 to 5110. [2023-12-02 12:54:10,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5110 states, 3023 states have (on average 1.2954019186238837) internal successors, (3916), 3110 states have internal predecessors, (3916), 1761 states have call successors, (1761), 325 states have call predecessors, (1761), 325 states have return successors, (1761), 1747 states have call predecessors, (1761), 1761 states have call successors, (1761) [2023-12-02 12:54:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5110 states to 5110 states and 7438 transitions. [2023-12-02 12:54:10,473 INFO L78 Accepts]: Start accepts. Automaton has 5110 states and 7438 transitions. Word has length 531 [2023-12-02 12:54:10,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:10,475 INFO L495 AbstractCegarLoop]: Abstraction has 5110 states and 7438 transitions. [2023-12-02 12:54:10,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (60), 3 states have call predecessors, (60), 3 states have call successors, (60) [2023-12-02 12:54:10,476 INFO L276 IsEmpty]: Start isEmpty. Operand 5110 states and 7438 transitions. [2023-12-02 12:54:10,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 550 [2023-12-02 12:54:10,513 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:10,514 INFO L195 NwaCegarLoop]: trace histogram [46, 44, 44, 44, 44, 44, 44, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:10,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-02 12:54:10,514 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:54:10,515 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1649086256, now seen corresponding path program 1 times [2023-12-02 12:54:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49897817] [2023-12-02 12:54:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:10,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:10,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:11,387 INFO L134 CoverageAnalysis]: Checked inductivity of 7764 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 7761 trivial. 0 not checked. [2023-12-02 12:54:11,388 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:11,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49897817] [2023-12-02 12:54:11,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49897817] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:11,388 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:11,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:11,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169015013] [2023-12-02 12:54:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:11,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:11,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:11,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:11,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:11,393 INFO L87 Difference]: Start difference. First operand 5110 states and 7438 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2023-12-02 12:54:13,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:54:16,272 WARN L539 Checker$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 12:54:18,274 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 12:54:21,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:21,049 INFO L93 Difference]: Finished difference Result 12496 states and 18160 transitions. [2023-12-02 12:54:21,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:21,050 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) Word has length 549 [2023-12-02 12:54:21,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:21,106 INFO L225 Difference]: With dead ends: 12496 [2023-12-02 12:54:21,106 INFO L226 Difference]: Without dead ends: 7475 [2023-12-02 12:54:21,130 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 12:54:21,131 INFO L413 NwaCegarLoop]: 3559 mSDtfsCounter, 3450 mSDsluCounter, 3481 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 8 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3450 SdHoareTripleChecker+Valid, 7040 SdHoareTripleChecker+Invalid, 835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:21,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3450 Valid, 7040 Invalid, 835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 824 Invalid, 3 Unknown, 0 Unchecked, 9.2s Time] [2023-12-02 12:54:21,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7475 states. [2023-12-02 12:54:21,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7475 to 7473. [2023-12-02 12:54:21,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7473 states, 4422 states have (on average 1.294436906377205) internal successors, (5724), 4548 states have internal predecessors, (5724), 2561 states have call successors, (2561), 489 states have call predecessors, (2561), 489 states have return successors, (2561), 2541 states have call predecessors, (2561), 2561 states have call successors, (2561) [2023-12-02 12:54:21,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7473 states to 7473 states and 10846 transitions. [2023-12-02 12:54:21,550 INFO L78 Accepts]: Start accepts. Automaton has 7473 states and 10846 transitions. Word has length 549 [2023-12-02 12:54:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:21,551 INFO L495 AbstractCegarLoop]: Abstraction has 7473 states and 10846 transitions. [2023-12-02 12:54:21,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (62), 3 states have call predecessors, (62), 3 states have call successors, (62) [2023-12-02 12:54:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 7473 states and 10846 transitions. [2023-12-02 12:54:21,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2023-12-02 12:54:21,578 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:21,578 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:21,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-02 12:54:21,578 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:54:21,579 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:21,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2000236920, now seen corresponding path program 1 times [2023-12-02 12:54:21,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:21,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319378625] [2023-12-02 12:54:21,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:21,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:21,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:22,148 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2023-12-02 12:54:22,148 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:22,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319378625] [2023-12-02 12:54:22,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319378625] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:22,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:22,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:22,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067365015] [2023-12-02 12:54:22,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:22,150 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:22,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:22,151 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:22,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:22,152 INFO L87 Difference]: Start difference. First operand 7473 states and 10846 transitions. Second operand has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-12-02 12:54:24,347 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 12:54:27,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:54:29,065 WARN L539 Checker$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 12:54:32,179 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 12:54:32,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:32,548 INFO L93 Difference]: Finished difference Result 19619 states and 28440 transitions. [2023-12-02 12:54:32,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:32,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 547 [2023-12-02 12:54:32,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:32,658 INFO L225 Difference]: With dead ends: 19619 [2023-12-02 12:54:32,659 INFO L226 Difference]: Without dead ends: 12235 [2023-12-02 12:54:32,703 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 12:54:32,704 INFO L413 NwaCegarLoop]: 3551 mSDtfsCounter, 3649 mSDsluCounter, 3501 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3649 SdHoareTripleChecker+Valid, 7052 SdHoareTripleChecker+Invalid, 877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:32,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3649 Valid, 7052 Invalid, 877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 860 Invalid, 4 Unknown, 0 Unchecked, 9.9s Time] [2023-12-02 12:54:32,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12235 states. [2023-12-02 12:54:33,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12235 to 12233. [2023-12-02 12:54:33,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12233 states, 7257 states have (on average 1.293371916770015) internal successors, (9386), 7470 states have internal predecessors, (9386), 4154 states have call successors, (4154), 821 states have call predecessors, (4154), 821 states have return successors, (4156), 4120 states have call predecessors, (4156), 4154 states have call successors, (4156) [2023-12-02 12:54:33,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12233 states to 12233 states and 17696 transitions. [2023-12-02 12:54:33,395 INFO L78 Accepts]: Start accepts. Automaton has 12233 states and 17696 transitions. Word has length 547 [2023-12-02 12:54:33,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:33,396 INFO L495 AbstractCegarLoop]: Abstraction has 12233 states and 17696 transitions. [2023-12-02 12:54:33,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.333333333333336) internal successors, (118), 3 states have internal predecessors, (118), 3 states have call successors, (66), 2 states have call predecessors, (66), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-12-02 12:54:33,397 INFO L276 IsEmpty]: Start isEmpty. Operand 12233 states and 17696 transitions. [2023-12-02 12:54:33,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2023-12-02 12:54:33,420 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:33,420 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:33,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-02 12:54:33,420 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:54:33,421 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:33,421 INFO L85 PathProgramCache]: Analyzing trace with hash -940674645, now seen corresponding path program 1 times [2023-12-02 12:54:33,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:33,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979756235] [2023-12-02 12:54:33,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:33,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:33,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:34,068 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2023-12-02 12:54:34,068 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:34,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979756235] [2023-12-02 12:54:34,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979756235] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:34,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:34,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:34,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654179574] [2023-12-02 12:54:34,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:34,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:34,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:34,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:34,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:34,071 INFO L87 Difference]: Start difference. First operand 12233 states and 17696 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-12-02 12:54:36,240 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 12:54:38,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:54:40,857 WARN L539 Checker$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 12:54:44,548 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 12:54:45,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:45,085 INFO L93 Difference]: Finished difference Result 33526 states and 48428 transitions. [2023-12-02 12:54:45,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:45,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) Word has length 544 [2023-12-02 12:54:45,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:45,208 INFO L225 Difference]: With dead ends: 33526 [2023-12-02 12:54:45,208 INFO L226 Difference]: Without dead ends: 21382 [2023-12-02 12:54:45,265 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 12:54:45,267 INFO L413 NwaCegarLoop]: 3673 mSDtfsCounter, 3664 mSDsluCounter, 3505 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 13 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3664 SdHoareTripleChecker+Valid, 7178 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:45,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3664 Valid, 7178 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 865 Invalid, 4 Unknown, 0 Unchecked, 10.4s Time] [2023-12-02 12:54:45,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21382 states. [2023-12-02 12:54:46,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21382 to 21372. [2023-12-02 12:54:46,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21372 states, 12707 states have (on average 1.292201148973007) internal successors, (16420), 13094 states have internal predecessors, (16420), 7189 states have call successors, (7189), 1475 states have call predecessors, (7189), 1475 states have return successors, (7197), 7127 states have call predecessors, (7197), 7189 states have call successors, (7197) [2023-12-02 12:54:46,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21372 states to 21372 states and 30806 transitions. [2023-12-02 12:54:46,560 INFO L78 Accepts]: Start accepts. Automaton has 21372 states and 30806 transitions. Word has length 544 [2023-12-02 12:54:46,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:46,561 INFO L495 AbstractCegarLoop]: Abstraction has 21372 states and 30806 transitions. [2023-12-02 12:54:46,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 3 states have call successors, (65), 2 states have call predecessors, (65), 1 states have return successors, (59), 3 states have call predecessors, (59), 3 states have call successors, (59) [2023-12-02 12:54:46,561 INFO L276 IsEmpty]: Start isEmpty. Operand 21372 states and 30806 transitions. [2023-12-02 12:54:46,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2023-12-02 12:54:46,586 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:46,586 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-02 12:54:46,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-12-02 12:54:46,587 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:54:46,587 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:46,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1776736652, now seen corresponding path program 1 times [2023-12-02 12:54:46,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:46,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315891029] [2023-12-02 12:54:46,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:46,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:47,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7660 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7660 trivial. 0 not checked. [2023-12-02 12:54:47,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:47,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315891029] [2023-12-02 12:54:47,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315891029] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:47,293 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:47,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:47,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937629167] [2023-12-02 12:54:47,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:47,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:47,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:47,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:47,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:47,296 INFO L87 Difference]: Start difference. First operand 21372 states and 30806 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-12-02 12:54:49,730 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 12:54:51,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:54:54,365 WARN L539 Checker$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 12:54:55,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:54:55,231 INFO L93 Difference]: Finished difference Result 55987 states and 80409 transitions. [2023-12-02 12:54:55,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:54:55,232 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) Word has length 559 [2023-12-02 12:54:55,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:54:55,352 INFO L225 Difference]: With dead ends: 55987 [2023-12-02 12:54:55,353 INFO L226 Difference]: Without dead ends: 34704 [2023-12-02 12:54:55,403 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 12:54:55,404 INFO L413 NwaCegarLoop]: 4801 mSDtfsCounter, 3213 mSDsluCounter, 3502 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 13 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3213 SdHoareTripleChecker+Valid, 8303 SdHoareTripleChecker+Invalid, 991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:54:55,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3213 Valid, 8303 Invalid, 991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 976 Invalid, 2 Unknown, 0 Unchecked, 6.9s Time] [2023-12-02 12:54:55,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34704 states. [2023-12-02 12:54:56,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34704 to 34702. [2023-12-02 12:54:56,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34702 states, 20642 states have (on average 1.2853890126925684) internal successors, (26533), 21249 states have internal predecessors, (26533), 11545 states have call successors, (11545), 2516 states have call predecessors, (11545), 2514 states have return successors, (11567), 11437 states have call predecessors, (11567), 11545 states have call successors, (11567) [2023-12-02 12:54:57,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34702 states to 34702 states and 49645 transitions. [2023-12-02 12:54:57,061 INFO L78 Accepts]: Start accepts. Automaton has 34702 states and 49645 transitions. Word has length 559 [2023-12-02 12:54:57,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:54:57,062 INFO L495 AbstractCegarLoop]: Abstraction has 34702 states and 49645 transitions. [2023-12-02 12:54:57,062 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 3 states have call successors, (68), 2 states have call predecessors, (68), 1 states have return successors, (63), 3 states have call predecessors, (63), 3 states have call successors, (63) [2023-12-02 12:54:57,062 INFO L276 IsEmpty]: Start isEmpty. Operand 34702 states and 49645 transitions. [2023-12-02 12:54:57,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 607 [2023-12-02 12:54:57,117 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:54:57,118 INFO L195 NwaCegarLoop]: trace histogram [45, 44, 44, 44, 44, 44, 44, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:54:57,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-12-02 12:54:57,118 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:54:57,120 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:54:57,120 INFO L85 PathProgramCache]: Analyzing trace with hash 73781873, now seen corresponding path program 1 times [2023-12-02 12:54:57,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:54:57,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502726782] [2023-12-02 12:54:57,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:54:57,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:54:57,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:54:57,825 INFO L134 CoverageAnalysis]: Checked inductivity of 7704 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7704 trivial. 0 not checked. [2023-12-02 12:54:57,825 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:54:57,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502726782] [2023-12-02 12:54:57,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502726782] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:54:57,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:54:57,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:54:57,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1958845432] [2023-12-02 12:54:57,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:54:57,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:54:57,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:54:57,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:54:57,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:54:57,828 INFO L87 Difference]: Start difference. First operand 34702 states and 49645 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2023-12-02 12:55:00,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:02,497 WARN L539 Checker$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 12:55:04,500 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:07,534 WARN L539 Checker$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 12:55:09,678 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:11,688 WARN L539 Checker$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 12:55:13,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:13,167 INFO L93 Difference]: Finished difference Result 97188 states and 138726 transitions. [2023-12-02 12:55:13,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:55:13,168 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) Word has length 606 [2023-12-02 12:55:13,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:13,479 INFO L225 Difference]: With dead ends: 97188 [2023-12-02 12:55:13,479 INFO L226 Difference]: Without dead ends: 62575 [2023-12-02 12:55:13,556 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 12:55:13,557 INFO L413 NwaCegarLoop]: 3615 mSDtfsCounter, 3443 mSDsluCounter, 3530 mSDsCounter, 0 mSdLazyCounter, 834 mSolverCounterSat, 7 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3443 SdHoareTripleChecker+Valid, 7145 SdHoareTripleChecker+Invalid, 847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 834 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:13,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3443 Valid, 7145 Invalid, 847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 834 Invalid, 6 Unknown, 0 Unchecked, 13.5s Time] [2023-12-02 12:55:13,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62575 states. [2023-12-02 12:55:15,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62575 to 62541. [2023-12-02 12:55:15,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62541 states, 37189 states have (on average 1.2824760009680283) internal successors, (47694), 38241 states have internal predecessors, (47694), 20679 states have call successors, (20679), 4676 states have call predecessors, (20679), 4672 states have return successors, (20723), 20489 states have call predecessors, (20723), 20679 states have call successors, (20723) [2023-12-02 12:55:15,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62541 states to 62541 states and 89096 transitions. [2023-12-02 12:55:16,004 INFO L78 Accepts]: Start accepts. Automaton has 62541 states and 89096 transitions. Word has length 606 [2023-12-02 12:55:16,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:16,005 INFO L495 AbstractCegarLoop]: Abstraction has 62541 states and 89096 transitions. [2023-12-02 12:55:16,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 3 states have call successors, (81), 2 states have call predecessors, (81), 1 states have return successors, (76), 3 states have call predecessors, (76), 3 states have call successors, (76) [2023-12-02 12:55:16,006 INFO L276 IsEmpty]: Start isEmpty. Operand 62541 states and 89096 transitions. [2023-12-02 12:55:16,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 600 [2023-12-02 12:55:16,060 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:16,061 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 6, 6, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:16,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-12-02 12:55:16,061 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:55:16,061 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:16,062 INFO L85 PathProgramCache]: Analyzing trace with hash -321462812, now seen corresponding path program 1 times [2023-12-02 12:55:16,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:16,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931893540] [2023-12-02 12:55:16,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:16,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:16,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:16,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8096 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 8089 trivial. 0 not checked. [2023-12-02 12:55:16,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:16,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931893540] [2023-12-02 12:55:16,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931893540] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:16,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:16,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:55:16,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758027974] [2023-12-02 12:55:16,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:16,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:55:16,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:16,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:55:16,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:55:16,451 INFO L87 Difference]: Start difference. First operand 62541 states and 89096 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2023-12-02 12:55:18,774 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:20,777 WARN L539 Checker$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 12:55:23,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:26,796 WARN L539 Checker$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 12:55:28,803 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:31,513 WARN L539 Checker$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 12:55:33,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:33,106 INFO L93 Difference]: Finished difference Result 153630 states and 218828 transitions. [2023-12-02 12:55:33,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:55:33,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 599 [2023-12-02 12:55:33,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:33,674 INFO L225 Difference]: With dead ends: 153630 [2023-12-02 12:55:33,674 INFO L226 Difference]: Without dead ends: 91343 [2023-12-02 12:55:33,882 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 12:55:33,883 INFO L413 NwaCegarLoop]: 6659 mSDtfsCounter, 3498 mSDsluCounter, 3521 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 4 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3498 SdHoareTripleChecker+Valid, 10180 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:33,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3498 Valid, 10180 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1198 Invalid, 6 Unknown, 0 Unchecked, 13.9s Time] [2023-12-02 12:55:33,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91343 states. [2023-12-02 12:55:37,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91343 to 91309. [2023-12-02 12:55:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91309 states, 54351 states have (on average 1.2832146602638406) internal successors, (69744), 55873 states have internal predecessors, (69744), 30079 states have call successors, (30079), 6884 states have call predecessors, (30079), 6878 states have return successors, (30145), 29778 states have call predecessors, (30145), 30079 states have call successors, (30145) [2023-12-02 12:55:37,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91309 states to 91309 states and 129968 transitions. [2023-12-02 12:55:37,550 INFO L78 Accepts]: Start accepts. Automaton has 91309 states and 129968 transitions. Word has length 599 [2023-12-02 12:55:37,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:55:37,551 INFO L495 AbstractCegarLoop]: Abstraction has 91309 states and 129968 transitions. [2023-12-02 12:55:37,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 3 states have call successors, (71), 2 states have call predecessors, (71), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2023-12-02 12:55:37,551 INFO L276 IsEmpty]: Start isEmpty. Operand 91309 states and 129968 transitions. [2023-12-02 12:55:37,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2023-12-02 12:55:37,607 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:55:37,607 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:55:37,607 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-12-02 12:55:37,607 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:55:37,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:55:37,608 INFO L85 PathProgramCache]: Analyzing trace with hash 895996988, now seen corresponding path program 1 times [2023-12-02 12:55:37,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:55:37,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577417146] [2023-12-02 12:55:37,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:55:37,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:55:37,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:55:38,159 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2023-12-02 12:55:38,160 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:55:38,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577417146] [2023-12-02 12:55:38,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [577417146] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:55:38,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:55:38,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:55:38,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369106491] [2023-12-02 12:55:38,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:55:38,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:55:38,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:55:38,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:55:38,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:55:38,164 INFO L87 Difference]: Start difference. First operand 91309 states and 129968 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2023-12-02 12:55:40,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:42,430 WARN L539 Checker$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 12:55:45,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:48,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:55:50,757 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 12:55:55,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:55:55,055 INFO L93 Difference]: Finished difference Result 224065 states and 318904 transitions. [2023-12-02 12:55:55,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:55:55,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) Word has length 611 [2023-12-02 12:55:55,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:55:55,599 INFO L225 Difference]: With dead ends: 224065 [2023-12-02 12:55:55,599 INFO L226 Difference]: Without dead ends: 133010 [2023-12-02 12:55:55,834 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 12:55:55,835 INFO L413 NwaCegarLoop]: 6823 mSDtfsCounter, 3661 mSDsluCounter, 3495 mSDsCounter, 0 mSdLazyCounter, 1235 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3661 SdHoareTripleChecker+Valid, 10318 SdHoareTripleChecker+Invalid, 1249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1235 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2023-12-02 12:55:55,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3661 Valid, 10318 Invalid, 1249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1235 Invalid, 5 Unknown, 0 Unchecked, 12.9s Time] [2023-12-02 12:55:55,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133010 states. [2023-12-02 12:56:00,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133010 to 132960. [2023-12-02 12:56:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132960 states, 79211 states have (on average 1.2826753859943694) internal successors, (101602), 81461 states have internal predecessors, (101602), 43647 states have call successors, (43647), 10113 states have call predecessors, (43647), 10101 states have return successors, (43755), 43197 states have call predecessors, (43755), 43647 states have call successors, (43755) [2023-12-02 12:56:01,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132960 states to 132960 states and 189004 transitions. [2023-12-02 12:56:01,632 INFO L78 Accepts]: Start accepts. Automaton has 132960 states and 189004 transitions. Word has length 611 [2023-12-02 12:56:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:01,633 INFO L495 AbstractCegarLoop]: Abstraction has 132960 states and 189004 transitions. [2023-12-02 12:56:01,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (69), 3 states have call predecessors, (69), 3 states have call successors, (69) [2023-12-02 12:56:01,633 INFO L276 IsEmpty]: Start isEmpty. Operand 132960 states and 189004 transitions. [2023-12-02 12:56:01,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2023-12-02 12:56:01,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:01,696 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:01,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-12-02 12:56:01,696 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:56:01,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:01,697 INFO L85 PathProgramCache]: Analyzing trace with hash -430134136, now seen corresponding path program 1 times [2023-12-02 12:56:01,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:01,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112529133] [2023-12-02 12:56:01,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:01,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:01,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:02,471 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2023-12-02 12:56:02,471 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:02,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112529133] [2023-12-02 12:56:02,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112529133] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:02,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:56:02,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:56:02,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909946828] [2023-12-02 12:56:02,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:02,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:56:02,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:02,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:56:02,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:56:02,474 INFO L87 Difference]: Start difference. First operand 132960 states and 189004 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2023-12-02 12:56:04,768 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 12:56:06,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:56:09,869 WARN L539 Checker$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 12:56:12,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:56:15,286 WARN L539 Checker$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 12:56:20,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:20,888 INFO L93 Difference]: Finished difference Result 324364 states and 461015 transitions. [2023-12-02 12:56:20,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:56:20,888 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) Word has length 608 [2023-12-02 12:56:20,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:21,775 INFO L225 Difference]: With dead ends: 324364 [2023-12-02 12:56:21,775 INFO L226 Difference]: Without dead ends: 191658 [2023-12-02 12:56:22,100 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 12:56:22,101 INFO L413 NwaCegarLoop]: 6802 mSDtfsCounter, 3646 mSDsluCounter, 3491 mSDsCounter, 0 mSdLazyCounter, 1239 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3646 SdHoareTripleChecker+Valid, 10293 SdHoareTripleChecker+Invalid, 1253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1239 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:22,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3646 Valid, 10293 Invalid, 1253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1239 Invalid, 5 Unknown, 0 Unchecked, 12.3s Time] [2023-12-02 12:56:22,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191658 states. [2023-12-02 12:56:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191658 to 191656. [2023-12-02 12:56:29,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191656 states, 114297 states have (on average 1.2819321591992792) internal successors, (146521), 117597 states have internal predecessors, (146521), 62662 states have call successors, (62662), 14720 states have call predecessors, (62662), 14696 states have return successors, (62836), 61990 states have call predecessors, (62836), 62662 states have call successors, (62836) [2023-12-02 12:56:30,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191656 states to 191656 states and 272019 transitions. [2023-12-02 12:56:30,894 INFO L78 Accepts]: Start accepts. Automaton has 191656 states and 272019 transitions. Word has length 608 [2023-12-02 12:56:30,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:56:30,895 INFO L495 AbstractCegarLoop]: Abstraction has 191656 states and 272019 transitions. [2023-12-02 12:56:30,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 3 states have call successors, (75), 2 states have call predecessors, (75), 1 states have return successors, (68), 3 states have call predecessors, (68), 3 states have call successors, (68) [2023-12-02 12:56:30,895 INFO L276 IsEmpty]: Start isEmpty. Operand 191656 states and 272019 transitions. [2023-12-02 12:56:30,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 621 [2023-12-02 12:56:30,944 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:56:30,944 INFO L195 NwaCegarLoop]: trace histogram [49, 44, 44, 44, 44, 44, 44, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:56:30,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-12-02 12:56:30,944 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:56:30,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:56:30,945 INFO L85 PathProgramCache]: Analyzing trace with hash 104386286, now seen corresponding path program 1 times [2023-12-02 12:56:30,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:56:30,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581699567] [2023-12-02 12:56:30,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:56:30,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:56:31,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:56:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 8053 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 8050 trivial. 0 not checked. [2023-12-02 12:56:31,763 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:56:31,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581699567] [2023-12-02 12:56:31,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581699567] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:56:31,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:56:31,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-02 12:56:31,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759825998] [2023-12-02 12:56:31,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:56:31,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-02 12:56:31,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:56:31,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-02 12:56:31,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-02 12:56:31,766 INFO L87 Difference]: Start difference. First operand 191656 states and 272019 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2023-12-02 12:56:34,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:56:36,919 WARN L539 Checker$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 12:56:39,514 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:56:41,523 WARN L539 Checker$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 12:56:43,895 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 12:56:52,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:56:52,013 INFO L93 Difference]: Finished difference Result 455318 states and 645417 transitions. [2023-12-02 12:56:52,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-02 12:56:52,013 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) Word has length 620 [2023-12-02 12:56:52,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:56:53,312 INFO L225 Difference]: With dead ends: 455318 [2023-12-02 12:56:53,312 INFO L226 Difference]: Without dead ends: 263916 [2023-12-02 12:56:53,911 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 12:56:53,912 INFO L413 NwaCegarLoop]: 6405 mSDtfsCounter, 3210 mSDsluCounter, 3492 mSDsCounter, 0 mSdLazyCounter, 1193 mSolverCounterSat, 9 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3210 SdHoareTripleChecker+Valid, 9897 SdHoareTripleChecker+Invalid, 1207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1193 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.8s IncrementalHoareTripleChecker+Time [2023-12-02 12:56:53,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3210 Valid, 9897 Invalid, 1207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1193 Invalid, 5 Unknown, 0 Unchecked, 11.8s Time] [2023-12-02 12:56:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263916 states. [2023-12-02 12:57:03,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263916 to 263914. [2023-12-02 12:57:04,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263914 states, 157510 states have (on average 1.2790426004698114) internal successors, (201462), 161977 states have internal predecessors, (201462), 85753 states have call successors, (85753), 20698 states have call predecessors, (85753), 20650 states have return successors, (86029), 84778 states have call predecessors, (86029), 85753 states have call successors, (86029) [2023-12-02 12:57:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263914 states to 263914 states and 373244 transitions. [2023-12-02 12:57:06,006 INFO L78 Accepts]: Start accepts. Automaton has 263914 states and 373244 transitions. Word has length 620 [2023-12-02 12:57:06,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:57:06,007 INFO L495 AbstractCegarLoop]: Abstraction has 263914 states and 373244 transitions. [2023-12-02 12:57:06,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 3 states have call successors, (77), 2 states have call predecessors, (77), 1 states have return successors, (72), 3 states have call predecessors, (72), 3 states have call successors, (72) [2023-12-02 12:57:06,007 INFO L276 IsEmpty]: Start isEmpty. Operand 263914 states and 373244 transitions. [2023-12-02 12:57:06,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2023-12-02 12:57:06,055 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:57:06,056 INFO L195 NwaCegarLoop]: trace histogram [51, 44, 44, 44, 44, 44, 44, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:57:06,056 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-02 12:57:06,056 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:57:06,056 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:57:06,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1923736291, now seen corresponding path program 1 times [2023-12-02 12:57:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:57:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095385823] [2023-12-02 12:57:06,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:57:06,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:57:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:57:06,624 INFO L134 CoverageAnalysis]: Checked inductivity of 8312 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8294 trivial. 0 not checked. [2023-12-02 12:57:06,624 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:57:06,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095385823] [2023-12-02 12:57:06,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2095385823] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:57:06,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:57:06,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:57:06,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951053837] [2023-12-02 12:57:06,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:57:06,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:57:06,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:57:06,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:57:06,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:57:06,627 INFO L87 Difference]: Start difference. First operand 263914 states and 373244 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 12:57:10,117 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 12:57:12,121 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:14,126 WARN L539 Checker$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 12:57:16,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:18,936 WARN L539 Checker$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 12:57:21,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:23,476 WARN L539 Checker$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 12:57:25,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:27,483 WARN L539 Checker$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 12:57:33,909 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:57:35,917 WARN L539 Checker$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 12:57:44,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:57:44,449 INFO L93 Difference]: Finished difference Result 608898 states and 860801 transitions. [2023-12-02 12:57:44,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:57:44,450 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) Word has length 624 [2023-12-02 12:57:44,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:57:46,118 INFO L225 Difference]: With dead ends: 608898 [2023-12-02 12:57:46,118 INFO L226 Difference]: Without dead ends: 345238 [2023-12-02 12:57:46,970 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 12:57:46,970 INFO L413 NwaCegarLoop]: 6659 mSDtfsCounter, 3477 mSDsluCounter, 16835 mSDsCounter, 0 mSdLazyCounter, 2752 mSolverCounterSat, 1 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 25.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3477 SdHoareTripleChecker+Valid, 23494 SdHoareTripleChecker+Invalid, 2764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2752 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.0s IncrementalHoareTripleChecker+Time [2023-12-02 12:57:46,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3477 Valid, 23494 Invalid, 2764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 2752 Invalid, 11 Unknown, 0 Unchecked, 26.0s Time] [2023-12-02 12:57:47,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345238 states. [2023-12-02 12:58:00,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345238 to 345020. [2023-12-02 12:58:00,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 345020 states, 205906 states have (on average 1.2784620166483736) internal successors, (263243), 211712 states have internal predecessors, (263243), 111977 states have call successors, (111977), 27146 states have call predecessors, (111977), 27136 states have return successors, (112399), 110695 states have call predecessors, (112399), 111977 states have call successors, (112399) [2023-12-02 12:58:02,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345020 states to 345020 states and 487619 transitions. [2023-12-02 12:58:02,860 INFO L78 Accepts]: Start accepts. Automaton has 345020 states and 487619 transitions. Word has length 624 [2023-12-02 12:58:02,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:58:02,861 INFO L495 AbstractCegarLoop]: Abstraction has 345020 states and 487619 transitions. [2023-12-02 12:58:02,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 4 states have internal predecessors, (146), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 12:58:02,861 INFO L276 IsEmpty]: Start isEmpty. Operand 345020 states and 487619 transitions. [2023-12-02 12:58:02,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 626 [2023-12-02 12:58:02,932 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:58:02,932 INFO L195 NwaCegarLoop]: trace histogram [51, 44, 44, 44, 44, 44, 44, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:58:02,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-12-02 12:58:02,932 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:58:02,933 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:58:02,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1633823989, now seen corresponding path program 1 times [2023-12-02 12:58:02,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:58:02,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981399514] [2023-12-02 12:58:02,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:58:02,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:58:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:58:03,540 INFO L134 CoverageAnalysis]: Checked inductivity of 8312 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8294 trivial. 0 not checked. [2023-12-02 12:58:03,540 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:58:03,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981399514] [2023-12-02 12:58:03,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981399514] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:58:03,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:58:03,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:58:03,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848058384] [2023-12-02 12:58:03,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:58:03,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:58:03,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:58:03,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:58:03,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:58:03,543 INFO L87 Difference]: Start difference. First operand 345020 states and 487619 transitions. Second operand has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 12:58:06,931 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:08,936 WARN L539 Checker$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 12:58:10,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:12,947 WARN L539 Checker$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 12:58:15,099 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:17,104 WARN L539 Checker$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 12:58:19,106 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:21,119 WARN L539 Checker$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 12:58:24,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:26,124 WARN L539 Checker$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 12:58:28,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:35,119 WARN L539 Checker$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 12:58:37,127 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:58:39,133 WARN L539 Checker$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 12:58:49,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-02 12:58:49,419 INFO L93 Difference]: Finished difference Result 771298 states and 1089839 transitions. [2023-12-02 12:58:49,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-02 12:58:49,420 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) Word has length 625 [2023-12-02 12:58:49,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-02 12:58:51,814 INFO L225 Difference]: With dead ends: 771298 [2023-12-02 12:58:51,814 INFO L226 Difference]: Without dead ends: 426532 [2023-12-02 12:58:52,798 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 12:58:52,798 INFO L413 NwaCegarLoop]: 6646 mSDtfsCounter, 3488 mSDsluCounter, 16799 mSDsCounter, 0 mSdLazyCounter, 2743 mSolverCounterSat, 3 mSolverCounterUnsat, 14 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3488 SdHoareTripleChecker+Valid, 23445 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2743 IncrementalHoareTripleChecker+Invalid, 14 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31.3s IncrementalHoareTripleChecker+Time [2023-12-02 12:58:52,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3488 Valid, 23445 Invalid, 2760 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 2743 Invalid, 14 Unknown, 0 Unchecked, 31.3s Time] [2023-12-02 12:58:53,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426532 states. [2023-12-02 12:59:10,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426532 to 426314. [2023-12-02 12:59:10,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426314 states, 254458 states have (on average 1.2779633574106533) internal successors, (325188), 261603 states have internal predecessors, (325188), 138209 states have call successors, (138209), 33618 states have call predecessors, (138209), 33646 states have return successors, (138777), 136620 states have call predecessors, (138777), 138209 states have call successors, (138777) [2023-12-02 12:59:12,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426314 states to 426314 states and 602174 transitions. [2023-12-02 12:59:12,790 INFO L78 Accepts]: Start accepts. Automaton has 426314 states and 602174 transitions. Word has length 625 [2023-12-02 12:59:12,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-02 12:59:12,791 INFO L495 AbstractCegarLoop]: Abstraction has 426314 states and 602174 transitions. [2023-12-02 12:59:12,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.4) internal successors, (147), 4 states have internal predecessors, (147), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 12:59:12,791 INFO L276 IsEmpty]: Start isEmpty. Operand 426314 states and 602174 transitions. [2023-12-02 12:59:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2023-12-02 12:59:12,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-02 12:59:12,846 INFO L195 NwaCegarLoop]: trace histogram [51, 44, 44, 44, 44, 44, 44, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:59:12,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-12-02 12:59:12,847 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-02 12:59:12,847 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 12:59:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1686812768, now seen corresponding path program 1 times [2023-12-02 12:59:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-12-02 12:59:12,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054214452] [2023-12-02 12:59:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-02 12:59:12,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 12:59:12,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 12:59:13,354 INFO L134 CoverageAnalysis]: Checked inductivity of 8312 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 8294 trivial. 0 not checked. [2023-12-02 12:59:13,354 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-12-02 12:59:13,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054214452] [2023-12-02 12:59:13,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054214452] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-02 12:59:13,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-02 12:59:13,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-02 12:59:13,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857684447] [2023-12-02 12:59:13,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-02 12:59:13,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-02 12:59:13,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-12-02 12:59:13,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-02 12:59:13,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-02 12:59:13,357 INFO L87 Difference]: Start difference. First operand 426314 states and 602174 transitions. Second operand has 5 states, 5 states have (on average 29.6) internal successors, (148), 4 states have internal predecessors, (148), 3 states have call successors, (73), 2 states have call predecessors, (73), 2 states have return successors, (70), 4 states have call predecessors, (70), 3 states have call successors, (70) [2023-12-02 12:59:16,664 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:59:18,837 WARN L539 Checker$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 12:59:21,410 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:59:23,413 WARN L539 Checker$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 12:59:25,425 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 12:59:27,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []